Contents

The following Help Topics are available:

	Click here to find out in what order you should confgure the templates for your application.
	Click here for help related to a specific template or parameter.
	Click here for help related to the X.25 PAD Configurator program and its menus.


Get Started

Configuration Schemes

Configuration Limits

Application Types


Your Application

You want to configure a Subscriber configuration for:

Interactive Environment

Autocall Noninteractive Environment

Interactive Call by Alias

Autoconnect

Security


Configuration Templates

Modem Profile X.3 Profile Banner and Prompt Subscriber ANI DNIS Autocall Autoconnect Dial Out Support Terminal Flow Control	Remote Host Host Flow Control Address X.28 Facility Call User Data Modem Port User ID X.25 Subnetwork Configuration VISA Protocol Spoofing


Configurator Menus

Using the Main Menu

Edit Menu

File Menu

Help Menu

Record Menu

Toolbar

View Menu

Window Menu


Using the Main Menu

The Configurator is composed of 20 windows, 19 displaying templates ready for configuration or those you have already configured, and the first screen you will see:  X.25 PAD Configurator Main Level screen.

This screen is always displayed when

♦	a Configurator file is opened from an Upload or Download.

♦	a new Configurator file is created.

It presents all the configurable tables, displays relationships between configurable tables, and provides access to configurable tables and the already-configured records.  When you click your mouse button on one of the 19 boxes displayed on the Main Menu, the template table displays, providing a means to configure settings and create configured records for that template type.

See Subscriber Configuration Schemes for more information about configuring different types of Subscribers.

This screen provides several key indicators designed to help you navigate through the PAD’s Subscriber configurations.  Among them are Red lines, Blue lines, and Shaded boxes.


Red Line

Indicates required preconfiguration.  For instance, Modem Profile, X.3 Profile, and Banner and Prompt templates must be configured before a Subscriber can be configured.


Blue Line

Indicates additional configuration options.  For instance, making a subscriber configuration specific to Autocalls is an option; however, if you decide to do so, you must first configure a Remote Host record (which, in turn, requires a configured Address, X.28 Facility, and Call User Data records).


Shaded box

Indicates that none of the required records have been configured and no “Default” records were included when the software was shipped (see boxes with red lines pointing to the shaded boxes).


Subscriber Configuration Schemes

Full subscriber configuration is rarely necessary, and the system doesn’t require it.  You may either create a Basic configuration for a subscriber or add Extended configuration.  Real-world applications of the PAD configuration are likely to be unique combinations of Basic and Extended subscriber configurations.

Related Topics:

Configuration Limits


Basic Subscriber Configuration

A Basic subscriber configuration is required.  It consists of a subscriber template with a configured and linked Modem Profile template, X.3 Profile template, and Banner and Prompt template.


Extended Subscriber Configuration

An Extended subscriber configuration consists of the Basic subscriber and up to 16 additional PAD templates fully configured and linked.


Configuration Limits

The database has certain limits because of the available space on the card.  Two Megabytes of Flash ROM are provided with the PAD, allowing 556K of space available for the database.

We have provided the following configuration examples to help you use the database in the most efficient way possible while meeting the needs of your users.

Example I:  1000 to 1 Ratio for Basic Subscribers

The PAD allows you to link up to 1000 ANI, DNIS, or User IDs to each of up to 18 Basic subscribers.  This means your database can maintain 18,000 ANI, DNIS, or User IDs attached to 18 Basic subscriber configurations.

NOTE:  This configuration scheme is only applicable to interactive calls.  Non-interactive calls require additional template configurations, such as autoconnect or autocall.

Example II:  1 to 1 Ratio

If you choose to create one subscriber configuration for every ANI, DNIS, or User ID, you limit the number of subscribers, as well as the number of ANI, DNIS, and User IDs you can configure in the database.

For instance, you can only configure up to 1500 ANI, DNIS, or User IDs when using a 1 to 1 ratio for Basic subscribers.  This means you can configure a total of 1500 Basic subscribers.

If you need to use Extended subscriber configurations (perhaps because the calls are non-interactive) and link each ANI, DNIS, and User ID to a single Extended subscriber configuration, you can only configure up to 750 ANI, DNIS, and User IDs.  This means you can configure a total of 750 Extended subscribers.


Interactive Environment

Configure the following templates to set up a Subscriber configuration for an interactive call.  See the sequence steps in the diagram.  For more information, click on the green numbers below or in the diagram.

1. .	X.3 Profile

2. 	Modem Profile

3. 	Banner and Prompt

4. 	Subscriber

5. 	Modem Port

6. 	DNIS, ANI, or User ID (optional)


Autocall Noninteractive Environment

Configure the following templates to set up a Subscriber configuration for an autocall.  See the sequence steps in the diagram.  For more information, click on the green numbers below or in the diagram.

1. 	X.3 Profile

2. 	Modem Profile

3. 	Banner and Prompt

4. 	Host Flow Control

5. 	Call User Data

6. 	X.28 Facility

7. 	Address

8. 	Remote Host

9. 	Autocall

10.	Subscriber (be sure to enable Autocall, disable Security, and configure for a non-interactive terminal)

11.	Modem Port

12.	ANI, DNIS, or User ID (optional)


Interactive Call by Alias

Configure the following templates to set up a Subscriber configuration for a call by alias.  See the sequence steps in the diagram.  For more information, click on the green numbers below or in the diagram.

1. 	X.3 Profile

2. 	Modem Profile

3. 	Banner and Prompt

4. 	Host Flow Control

5. 	Call User Data

6. 	X.28 Facility

7. 	Address

8. 	Remote Host

9. 	Subscriber (be sure to enable Autocall, disable Security, and configure for an interactive terminal)

10.	Modem Port

11.	ANI, DNIS, or User ID (optional)


Autoconnect

Configure the following templates.  See the sequence steps in the diagram.  For more information, click on the green numbers below or in the diagram.

1. 	X.3 Profile

2. 	Modem Profile

3. 	Banner and Prompt

4. 	Autoconnect (PLP PVCs must be configured in the RS-232 User Interface or in Total Control Manager/SNMP; the Logical Channel Identifier must be the same here as was configured in the PLP PVC)

5. 	Subscriber (be sure to enable Autoconnect)

6.	Modem Port

7.	ANI, DNIS, or User ID (optional)


Security

Configure the following templates  See the sequence steps in the diagram.  For more information, click on the green numbers below or in the diagram.

1. 	X.3 Profile

2. 	Modem Profile

3. 	Banner and Prompt

4. 	Host Flow Control

5. 	X.28 Facility

6. 	Address

7. 	Call User Data

8. 	Remote Host

9. 	Subscriber (be sure to enable Security)

10.	User ID


Subscriber Template

When you configure a Subscriber template, you link other configured templates (described below) into one entity the system uses to locate configuration information appropriate for a call.  The Subscriber template allows the network administrator to consolidate the many features available in the X.25 PAD into a group that can then be associated with an ANI, DNIS, or modem port.  When an appropriate call is received at the PAD, it can then pull a single record and configure the modem appropriately for that particular call.  The Subscriber template links the following templates, allowing unique configurations.

Click here if you want to look at descriptions of the parameters in the Subscriber template.


Autocall Template

An Autocall template is used when a non-interactive call must automatically call a remote host on the PSN.  When you configure an Autocall template, you link the call to a primary Remote Host and up to four secondary Remote Hosts on the PSN.

Click here if you want to look at descriptions of the parameters in the Autocall template.


Autoconnect Template

An Autoconnect template allows you to configure a PVC to be used when a non-interactive call must automatically connect with a remote host on the PSN.

Click here if you want to look at descriptions of the parameters in the Autoconnect template.


Dial Out Support Template

When dial-out calling is supported for a remote host, this template allows the remote host to send AT commands and configure a modem in the chassis via the PAD connection.

Click here if you want to look at descriptions of the parameters in the Dial Out Support template.


Terminal Flow Control Template

When terminal flow control is enabled, this template allows the PAD to control the flow of data sent to the remote host from the terminal.

Click here if you want to look at descriptions of the parameters in the Terminal Flow Control template.


Modem Profile Template

A configured Modem Profile template uses AT commands to configure the modem (in Smart mode) when a call is received at the PAD.  This template is also used to configure parity.

Click here if you want to look at descriptions of the parameters in the Subscriber template.


X.3 Profile Template

By configuring an X.3 Profile template and linking it to a Subscriber template, the X.3 parameters can be set appropriately for an incoming call.

Click here if you want to look at descriptions of the parameters in the X.3 Profile template.


Banner and Prompt Template

This template allows you to set up an appropriate banner and prompt for an incoming call.

Click here if you want to look at descriptions of the parameters in the Banner and Prompt template.


Remote Host Template

The name of the Remote Host is an alias.  A Remote Host template must also be configured if you want autocall enabled for a subscriber.  This template sets specific parameters to be used by the remote host.

Click here if you want to look at descriptions of the parameters in the Remote Host template.


Host Flow Control Template

When host flow control is enabled, this template allows the PAD to control the flow of data sent to the terminal from the remote host.

Click here if you want to look at descriptions of the parameters in the Host Flow Control template.


Address Template

When you configure this template, you define the X.25 addressing mechanism to be used when routing a call to a remote host on a PSN.

Click here if you want to look at descriptions of the parameters in the Address template.


X.28 Facility Template

A configured X.28 Facility template identifies the X.25 call features (such as Fast Select and Reverse Charging) that can be negotiated with the PSN for an X.25 call.

Click here if you want to look at descriptions of the parameters in the X.25 Facility template.


Call User Data (CUD) Template

This template allows you to define call user data that is part of the call request packet.  The CUD field of a call request packet may contain such information as the host name, password, and subaddress.

Click here if you want to look at descriptions of the parameters in the CUD template.


Modem Port Template

When a call comes into the PAD, this template is checked to find a linked subscriber, which then tells the system how the call should be routed.

Click here if you want to look at descriptions of the parameters in the Modem Port template.


ANI (Automatic Number Indication String) Template

When a call comes into the PAD, this template is checked to find a linked subscriber, which then tells the system how the call should be routed.  ANI is a TELCO feature that provides the telephone number from which a call is placed.

Click here if you want to look at descriptions of the parameters in the ANI template.


DNIS (Dialed Number Identification String) Template

When a call comes into the PAD, this template is checked to find a linked subscriber, which then tells the system how the call should be routed.  DNIS is a TELCO feature that provides the telephone number being dialed.

Click here if you want to look at descriptions of the parameters in the DNIS template.


User ID Template

This template allows you to configure basic security (User ID and password) for the host.

Click here if you want to look at descriptions of the parameters in the User ID template.


X.25 Subnetwork Configuration Template

This template allows you to configure the X.25 subnetwork (physical port on the NIC).

Click here if you want to look at descriptions of the parameters in the X.25 Subnetwork Configuration template.


VISA Protocol Spoofing Template

This template allows you to configure VisaI (single transaction) and VisaII (multiple transaction) spoofing.

Click here if you want to look at descriptions of the parameters in the VISA Protocol Spoofing template.


ANI, DNIS, and User ID

Once the Subscriber template has been configured and named, it can be linked to an ANI (caller’s number), DNIS (dilaed number), or a User ID template configuration.  This allows th3e Subscriber template configuration to be invoked based on the ANI, DNIS, or User ID of the incoming call.

Click here for more information about the ANI template.

Click here for more information about the DNIS template.

Click here for more information about the User ID template.


Toolbar

New

Creates and displays a new configuration based on the “Default” configuration settings provided when the software was shipped.

Open

Opens a previously saved configuration file.  Browse to find the list of files with *.x25 extensions and select the configuration you want to display.

Save

Saves the currently displayed configuration to a file format (with an *.x25 extension) that can be Uploaded from or Downloaded to the X.25 PAD Gateway card in the chassis.

Cut

Removes the current selection and places it on the Clipboard.

Copy

Copies the current selection and places the copy on the Clipboard.

Paste

Places the Clipboard data at the mouse insertion point.

Print

Prints the current selection.

Help

Provides additional information about your current selection.  You may also access Help for the current selection by clicking on your right mouse button.


File Menu

New

Creates and displays a new configuration based on the “Default” configuration settings provided when the software was shipped.

Open

Opens a previously saved configuration file.  Browse to find the list of files with *.x25 extensions and select the configuration you want to display.

Close

Closes the displayed Configuration file.

Save

Saves the displayed configuration file.  If unnamed, will prompt you to Save As a file with an *.x25 extension.

Save as

Name the file with an *.x25 extension.

Print

Prints the selected record type.  Note that all configured records of that type in the displayed Configuration file will be printed.

Print Setup

Allows you to select a specific printer.

Upload

Updates the displayed Configuration file at the Management Station with the settings in the NAC’s RAM.  When you select this option, a (NAME>>>>) screen is displayed requesting information used to route the configuration file appropriately.

Download

Updates the X.25 PAD Gateway NAC’s RAM with the settings in the displayed Configuration file.  When you select this option, a (NAME>>>>) screen is displayed requesting information used to route the configuration file appropriately.

File Download

Updates the X.25 PAD Gateway NAC’s RAM with a previously saved Configuration file.  When you select this option, a (NAME>>>>) screen is displayed requesting the file’s name and location, as well as information used to route the configuration file appropriately.

Exit

Closes the PAD Configurator program.


Edit Menu

These options are available only when a record is selected; they can be used to alter the contents of a single cell.

Cut

Removes the currently selected text within an open record and places it on the Clipboard.

Copy

Copies the currently selected text within an open record and places the copy on the Clipboard.

Paste

Places the Clipboard data at the mouse insertion point.

Delete

Deletes the selected text from within a cell in the displayed record.


Record Menu

A selected record’s configuration content (except its name) may be cut, copied, and pasted into a new record, or a selected record may be deleted entirely.

New

Creates and displays a new record based on default settings.

Cut

Removes the settings from the selected record and places them on the Clipboard.

Copy

Places a copy of the settings from the selected record on the Clipboard.

Paste

Places the copy of the settings currently on the Clipboard into the selected record.

Delete

Deletes the selected record.

Set Default

Resets the configuration setting in the selected cell of the open record to the default setting.  Note that there are 7 possible default settings for parameters in the X.3 Profile.  Select the default you want your default to emulate.


View Menu

Toolbar

Toggles to display the toolbar icons.

Status bar

Toggles to display the status bar.

Table by Rows

Formats the configured records in a selected table in rows.  This view may be easy for comparing other configuration of a specific parameter between several configured records.

Table by Columns

Formats the configured records in a selected table in columns.  This view may be easy for viewing each configured record in its entirety.

When you open a template, it will initially display according to the Table by Rows/Columns setting currently selected.  As with all windows, you can adjust column widths and heights by clicking and dragging the mouse.


Window Menu

New Window

Opens another Configuration file in another window.

Cascade

Displays multiple windows in a cascading fashion.

Tile

Displays multiple windows as tiles on the screen.

Arrange Icons

Arranges the icons on the screen so each is easily located and selected.

List of open windows

Displays a list of all files in open windows.


Help Menu

Contents

Displays a Help program equipped to answer questions related to the Configurator and X.25 configuration.

Get Started

Diasplays a window explaining the parent-child relationship between the boxes on the Main Level screen.

Using Help

Displays the Windows Help program.

About X.25

Displays information specific to your Configurator program.


Context Sensitive Help

There are three ways for you to obtain conext sensitive hel in the X.25 PAD Configurator Help System:

♦	Click on the [image] icon in the toolbar, then click on the item for which you are seeting information.

♦	Click on your right mouse button and information related to the selected parameter will be displayed.

♦	You may also press Shift-F1.  A question mark cursor displays with which you may click on the item for which you are seeking information.


Modem Profile Template

The Modem Profile template is used to send an AT configuration string to configure the modem (in Smart mode) on a per-call basis.  The Start string is used to configure the modem before the call is accepted.  The Stop string is rarely used in this application.

IMPORTANT:  The default Null setting for Start and Stop strings selects the modem’s current configuration.

If you change the modem settings for one subscriber via a Start string, we recommend you return to the original modem settings via the Stop string, or begin all Start strings with a reset to modem factory defaults.

Related Topics:

Name

Start String

Stop String

Autoparity Enable

Autoparity Timeout

Default Parity


Name

This is the name of the template configuration.

Options:	Up to 8 alphanumeric characters

Default:	NONAME


Start String

This is the modem configuration string to be executed before the modem accepts a call.  See also Stop String.

IMPORTANT:  The default Null setting for Start and Stop strings selects the modem’s current configuration.

If you change the modem settings for one subscriber via a Start string, we recommend you return to the original modem settings via the Stop string, or begin all Start strings with a reset to modem factory defaults.

Options:	Up to 64 alphanumeric characters (including the AT command prefix, carriage return, or spaces)

Default:	Null


Stop String

This is the modem configuration string to be executed after the modem ends a call.  See also Start String.

IMPORTANT:  The default Null setting for Start and Stop strings selects the modem’s current configuration.

If you change the modem settings for one subscriber via a Start string, we recommend you return to the original modem settings via the Stop string, or begin all Start strings with a reset to modem factory defaults.

Options:	Up to 64 alphanumeric characters (including the AT command prefix, carriage return, or spaces)

Default:	Null


Autoparity Enable

If Autoparity is enabled, the PAD waits for the hex message 2E0D (a period followed by a Carriage Return) for the length of time defined in the Autoparity Timeout parameter.  When the 2E0D is detected, the PAD autodetects modem parity.  If the timeout elapses before the 2E0D is detected, the PAD sets the modem parity as defined by the Default Parity  parameter.

If Autoparity is not enabled, the PAD sets the modem parity as defined by the Default Parity parameter.

Options: 	Yes
No

Default:	No

Related Topics:

Modem Profile Template


Autoparity Timeout

This is how long (in 50 millisecond units) the PAD will wait for the 2E0D hex message (a period followed by a Carriage Return) before setting parity according to the Default Parity parameter.

Options:	0 to 6000 (in 50 millisecond units)

Default:	100

Related Topics:

Modem Profile Template


Default Parity

NOTE:  When a connection is made, the PAD checks the Parity Treatment parameter in the X.3 Profile template after it has checked your Modem Profile template.  If Autoparity is enabled, the X.3 parameter will overwrite any parity setting configured in the Modem Profile template.

Options:	Odd
Even
None

Default:	None

Related Topics:

Modem Profile Template


X.3 Profile Template

The X.3 Profile template defines the parameters used to format the data sent to the Packet Switched Network when a call matching the subscriber definition comes into the PAD.

NOTE:  Setting a value of 0 for both Data Forward and Idle Timer parameters may enhance performance.  However, this may cause problems if you don’t fill the modem buffer, as data in the buffer will not be transferred.

Related Topics:

Name Escape Data Transfer Echo Data Forward Idle Timer (msecs) Flow Control Discard Output Service Signal Control Action on Break Carriage-Return Padding Line Folding Speed READ ONLY Flow Control by Terminal Line-Feed Insertion Pad after Line-Feed Editing Char-Delete Character Buff-Delete Character	Buff-Display Character Edit Service Signal Echo Mask Parity Treatment Page Wait PAD Overwrite Mode Timer Conversion Guard Timer (msecs) Timer Mode Line Recall STD PAD Qbit Ignore Max. X.25 Call Attempts Inactivity Timer Pass XON/XOFF Help Enable/Disable


Escape Data Transfer

This parameter allows you to enable/disable the ability to escape from Data Transfer mode into Command mode.

Options:	Not permitted
Permitted

Default:	Not Permitted

Related Topics:

X.3 Profile Template


Echo

This parameter allows you to enable/disable echo.

Options:	No Echo
Echo

Default:	Echo

Related Topics:

X.3 Profile Template


Data Forward

This parameter specifies the character(s) that will trigger the forwarding of data when they occur in the data stream.  Data will be forwarded when the conditions of this parameter and the Idle Timer parameter and/or the Guard Timer parameter are fulfilled, or whenever the buffer is filled.

NOTE:  Setting a value of 0 for both Data Forward and Idle Timer parameters may enhance performance.  However, this may cause problems if you don’t fill the modem buffer, as data in the buffer will not be transferred.

Options:	No data forwarding characters used
Alphanumeric characters (A-Z, a-z, 0-9)
CR
ESC, BEL, ENQ, ACK characters
DEL, CAN, DC2 characters
ETX, EOT characters
HT, LF , VT, FF  characters
All other ASCII control characters not
included above (except DEL)

Default:	CR

Related Topics:

X.3 Profile Template


Idle Timer (msecs)

In compliance with ITU-T, this timer forwards data when time units have expired without reception of additional data.

This timer is sometimes called the Intercharacter Delay Timer because, it is the time allowed between transmitted characters.  Once the timer expires, the PAD recognizes an idle condition.

NOTES:

♦	When Echo is on and the idle timer is configured, the idle timer setting is the idle timer for the PAD (data is accumulated in the PAD buffer).

♦	When Echo is off and the idle timer is configured, the idle timer setting is the idle timer for the modem.

♦	A high idle timer setting for a data transfer can provide higher throughput (data is accumulated in the modem buffer).  However, this may lower throughput on an interactive call.  This is because the packet bus is underutilized by the smaller data packets.

Options:	0 to 255 in units determined by the Timer Conversion parameter

Default:	0

Related Topics:

X.3 Profile Template


Flow Control

Determines whether the network device can use software flow control.  If the system administrator configures the Terminal Flow Control Template, the template configuration takes precedence and this setting may be overwritten.

Options:	No use of X-ON/X-OFF flow control
Use X-ON and X-OFF

Default:	Use X-ON and X-OFF

Related Topics:

X.3 Profile Template


Service Signal Control

This parameter determines whether or not Service Signals are transmitted.

Options:	No service signals
Service signals are transmitted
Service signals and PAD command signals
transmitted with the extended dialog
mode format (English, French, and
Spanish)Service signals are transmitted

Default:	Service signals are transmitted

Related Topics:

X.3 Profile Template


Discard Output

Options:	0 = Normal Data Delivery

Default:	0


Action on Break

This parameter determines what will happen on receipt of a break.

Options:	No action on receipt of Break
PAD sends X.25 Interrupt packet
PAD sends X.25 Reset packet
PAD sends X.29 Indication of Break message
Escape from Data Transfer
Discard output to terminal

NOTE:  Discard output to terminal is not vaild alone, but may be combined with the other values.  This allows the PAD to discard output to the terminal, but only when some type of notification is provided to the sender.

Default:	8

Related Topics:

X.3 Profile Template


Carriage-Return Padding

Options:	No padding
Number of characters inserted after CR (1-7)

Default:	No padding

Related Topics:

X.3 Profile Template


Line Folding

Options:	0 to 255  =  Number of characters per line

Default:	80

Related Topics:

X.3 Profile Template


Speed READ ONLY

Options:	110 bps
134.5 bps
300 bps
1,200 bps
600 bps
75 bps
150 bps
1,800 bps
200 bps
100 bps
50 bps
75/1,200 bps
240 bps
4,800 bps
9,600 bps
19,200 bps
48,000 bps
56,000 bps
64,000 bps

Default:	9,600

Related Topics:

X.3 Profile Template


Flow Control by Terminal

This parameter allows the terminal user to regulate data flow using software flow control in an interactive call.  If enabled, the terminal sends Ctrl-S to PAD.  PAD stops reading data from the Host.  PAD waits until the Tvalue time period (configured in the protocol stack) expires before sending a Receiver Not Ready packet to the Host.

Options: 	No use of X-ON/X-OFF flow control
Use X-ON and X-OFF

Default:	Use X-ON and X-OFF

Related Topics:

X.3 Profile Template


Line-Feed Insertion

This parameter determines if and when line feeds are associated with Carriage Returns.

Options:	No line feed insertion
Insert line feed after CR on output to terminal
Insert line feed after CR on input from terminal
Insert line feed after echo of CR to terminal

Default:	No line feed insertion,  Insert line feed after CR on input from terminal, and Insert line feed after echo of CR to terminal

Related Topics:

X.3 Profile Template


Pad after Line-Feed

Options:	No padding
Number of characters inserted after Line Feed (1-7)

Default:	No padding

Related Topics:

X.3 Profile Template


Editing

Options:	No editing
Editing enabled

Default:	Editing enabled

Related Topics:

X.3 Profile Template


Char-Delete Character

This parameter determines the ASCII character, if any, that is used to delete characters.

Options: 	0  =  Function disabled
1 to 127=  ASCII character used for character delete

Default:	8

Related Topics:

X.3 Profile Template


Buff-Delete Character

This parameter determines the ASCII character, if any, that is used to delete buffer contents.

Options:	0  =  Function disabled
1 to 127=  ASCII character used for buffer delete

Default:	24

Related Topics:

X.3 Profile Template


Buff-Display Character

This parameter determines the ASCII character, if any, that is used to display the current edit buffer before forwarding.

Options:	0  =  Function disabled
1 to 127=  ASCII character used for buffer display

Default:	18

Related Topics:

X.3 Profile Template


Edit Service Signal

Options:	No editing of Service Signals
Hard copy terminal
Video display terminal

Default:	Video display terminal

Related Topics:

X.3 Profile Template


Echo Mask

Options:	All characters echoed

No echo of CR

No echo of LF

No echo of VT, HT, FF

No echo of BEL, backspace

No echo of ESC, ENQ

No echo of ACK, NAK, STX, SOH, EOT, ETB, ETX

No echo of editing characters specified in parameters Char-Delete Character , Buff-Delete Character , and Buff-Display Character

No echo of DEL and all other ASCII control characters not included above

Default:	All characters echoed

Related Topics:

X.3 Profile Template


Parity Treatment

Options:	Parity not detected or checked
Parity checked
Parity generated
Parity checked and generated

Default:	Parity checked and generated

Related Topics:

X.3 Profile Template


Page Wait

Options:	0  =  No Page Wait

1 to 255	=	Number of line feeds sent by PAD before encountering Page Wait

Default:	24

Related Topics:

X.3 Profile Template


PAD Overwrite Mode

Message mode works best for interactive calls; Native mode works best for data transfer, or when you want the PAD to be transparent to the remote host; Transparent mode is best when line folding is controlled by the host; Pipe mode is best for raw data transfer in non-interactive autocalls; the None option works best if you want to customize parameters for the command state, but do not want those changes to affect the data transfer settings.

Options:	Message
Native
Transparent
Pipe
None

Default:	None

Related Topics:

X.3 Profile Template

PAD Modes of Operation

What Mode to Use?

Message Mode

Native Mode

Pipe Mode

Transparent Mode

None


Timer Conversion

Idle/Guard timer
x	Timer Conversion factor
Total
x	5 msec
Data forwarding time

Setting the Timer Conversion to 1 means that the Idle Timer will be measured in 5 millisecond units.

When a Host sets the Idle Timer via an X.29 message, it usually assumes 1 unit = 50 msecs (per ITU-T).

This parameter allows adjustable timer resolution.  The default resolution is 1 unit = 5 msecs, with flexibility to change the multiplying factor.

Options:	1 to 255 in 5 millisecond units

Default:	10

Related Topics:

X.3 Profile Template


Guard Timer (msecs)

This timer forwards data when the configured time unit has expired.

NOTES:

♦	When Echo is on and the guard timer is configured, the guard timer setting is the guard timer for the PAD (data is accumulated in the PAD buffer).

♦	When Echo is off and the guard timer is configured, the guard timer setting is the guard timer for the modem.

♦	A high guard timer setting for a data transfer can provide higher throughput (data is accumulated in the modem buffer).  However, this may lower throughput on an interactive call.  This is because the packet bus is underutilized by the smaller data packets.

Options:	0 = No Guard Timer used
1 to 255  =  Delay in 5 millisecond units

Default:	0 (No Guard Timer used)

Related Topics:

X.3 Profile Template


Timer Mode

Options:	No Guard or Idle Timer
Guard Timer only
Idle Timer only
Both Guard and Idle Timer

Default:	Idle Timer only

Related Topics:

X.3 Profile Template


Line Recall

This parameter determines the ASCII character, if any, used to display the last edit buffer forwarded.

Options:	0 = Function disabled
1 to 127  =  ASCII character used for buffer display

Default:	0 (Function disabled)

Related Topics:

X.3 Profile Template


STD PAD

This parameter determines if you want the Breakin Recall Character to be compliant with ITU-T specifications.

Options:	Non-Standard PAD
Standard PAD

Default:	Non-Standard PAD

Related Topics:

X.3 Profile Template


Breakin Recall Character

If the PAD setup is Standard, the Breakin Recall Character will default to Ctrl-P, with no modifiers.

If the PAD setup is Non-Standard, the Breakin recall character will default to Ctrl-Pa or one of the other modifiers listed below:

a	Enter PAD command mode.

b	Send a break signal to the connected host.

e	Reverse the current echo state (until Enter is pressed).

r	Reset the current call (if any).

t	Forward the current buffered line.

char	Put the character into the buffer-used mainly for control characters DEL, DC2, and CAN.

The terminal user may use the Breakin Recall Character, revise X.3 settings, and the new configuration will take effect immediately.


Qbit Ignore

This parameter allows the user to configure the PAD so it will ignore all X.29 messages from the remote host.

Options:	Allow X.29 Messaging
Ignore X.29 Messaging

Default: 	Allow X.29 Messaging

Related Topics:

X.3 Profile Template


Max X25 Call Attempts
Max. X.25 Call Attempts

This parameter sets the number of allowable call attempts to the PAD.  Once the user exceeds the number of all attempts allowed, the call immediately takes down the modem-PAD link by dropping DTR.

NOTE:  This parameter may only be set via the User Interface and the X.25 PAD Configurator programs (it may not be set at the PAD prompt).

Options:	1 to 127

Default:	0


Inactivity Timer

This parameter functions as an inter-call inactivity timer.  When a user connects to the PAD, this timer begins counting up to the value configured.  If the user makes no call attempt to the host during the allotted time, the modem-terminal link is dropped.  If the user makes a successful call to the host, this timer is reset and disabled for the remainder of the connection.  When the call to the host is cleared, the timer is once again enabled and it begins counting again.  A setting of 0 disables this timer.

NOTE:  This parameter may only be set via the User Interface and the X.25 PAD Configurator programs (it may not be set at the PAD prompt).

Options:	0 to 255 seconds

Default:	0


Pass XON/XOFF

This parameter deteremines whether or not XON/XOFF characters will be passed on from the terminal throught the PAD to the remote host.

Options:	No
Yes

Default:	No


Help Enable/Disable

This parameter enables or disables Help at the PAD prompt.

Options:	No
Yes

Default:	No


Banner and Prompt Template

The Banner and Prompt template is used to create screen displays that identify the PAD when a call matching the subscriber comes into the PAD.

Related Topics:

Name

Banner (Max 80 Chars)

Prompt (Max 6 Chars)


Banner (Max 80 Chars)

This is the banner to be displayed by your application to a user.

The banner message allows up to 80 charcters.  You may now include the following switches in the configured banner for the noted results.  The switches are not case sensitive (#g and #G result in the same information display).

#m	Modem Number (1-48)

#c	Channel Number (1-4)

#s	Slot Number (2-13)

#g	PAD Slot Number (2-13)

Example:
Welcome!  You are using Channel #c of Modem #m in Slot #s.

Options:	Up to 80 alphanumeric characters

Default:	X.25 Gateway

Related Topics:

Banner and Prompt Template


Prompt (Max 6 Chars)

This is the prompt to be displayed by your application to a user.

Options:	Up to 6 alphanumeric characters

Default:	PAD>

Related Topics:

Banner and Prompt Template


Subscriber Template

Once you have configured a Modem Profile, X.3 Profile, and Banner and Prompt, you are ready to set up a subscriber.  The Subscriber template is used as a routing mechanism.  By pointing to templates associated with a particular subscriber and by enabling features such as Autocall or Security, this template defines the configuration to be used with a matching call.

NOTES:

♦	You must enter the names of the previously configured Modem Profile, X.3 Profile, and Banner and Prompt templates or the subscriber will be invalid.

♦	If you enable Autoconnect or Autocall (never both for one Subscriber), security should be off (none), the terminal must be non-interactive, and you must configure an Autoconnect/Autocall template and link it to the Subscriber or the Subscriber record will be invalid.

Related Topics:

Name

Autocall

Autoconnect

Dial Out

Flow Control

Security

Accounting (Pass ANI)

Call by Alias Only

Terminal Type

Modem Profile NAME

X.3 Profile NAME

Banner and Prompt NAME

Protocol Spoof


Autocall Enable

This parameter enables/disables the feature for this subscriber.  To enable this feature, select the name of the configured Autocall template you want to link to this subscriber from the list.

If you enable Autoconnect or Autocall (never both for one Subscriber), security should be off (none), the terminal must be non-interactive, and you must configure an Autoconnect/Autocall template and link it to the Subscriber or the Subscriber record will be invalid.

Options:	Yes
No

Default:	No

Related Topics:

Subscriber Template


Autoconnect Enable

This parameter enables/disables the feature for this subscriber.  To enable this feature, select the name of the configured Autoconnect template you want to link to this subscriber from the list.

If you enable Autoconnect or Autocall (never both for one Subscriber), security should be off (none), the terminal must be non-interactive, and you must configure an Autoconnect/Autocall template and link it to the Subscriber or the Subscriber record will be invalid.

Options:	Yes
No

Default:	No

Related Topics:

Subscriber Template


Dial Out Enable

This parameter enables/disables the feature for this subscriber.  To enable this feature, select the name of the configured Dialout Support template you want to link to this subscriber from the list.

Options:	Yes
No

Default:	No

Related Topics:

Subscriber Template


Flow Control Enable

This parameter enables/disables the feature for this subscriber.  To enable this feature, select the name of the configured Flow Control template you want to link to this subscriber from the list.

Options:	Yes
No

Default:	No

Related Topics:

Subscriber Template


Security

Enable security for User ID, Password and User ID, or disable security.

Options:	User ID
Both
None

Default:	None

Related Topics:

Subscriber Template


Accounting (Pass ANI)

This parameter value determines if ANI (Automatic Number Indication String)—the phone number calling into the PAD—is placed in the call request packet as the calling address.

Options:	0	=	No
1	=	Yes

Default:	0


Call by Alias Only

This parameter allows you to stipulate that calls should be addressed only by alias.  If you enable this parameter, the PAD will not make calls addressed via X.121 addressing.

Options:	Yes
No

Default:	No

Related Topics:

Subscriber Template


Terminal Type

This parameter selects the mode under which the terminal will communicate with the PAD.

When Scriptmode is selected, the terminal will communicate interactively with the PAD, but only for the duration of the current call.

FastAutocall configures the call such that an X.25 session is established simultaneously with establishing a modem connection.

NOTE:  A Noninteractive selection disables a PAD prompt for autocalls and autoconnects.

Options:	Interactive
Noninteractive
Scriptmode
FastAutocall

Default:	Interactive

Related Topics:

Subscriber Template


Modem Profile NAME

Mandatory

This is the name of the configured Modem Profile template you want linked to this subscriber.

Options:	Up to 8 alphanumeric characters

Default:	NONAME

Related Topics:

Subscriber Template


X.3 Profile NAME

Mandatory

This is the name of the configured X.3 Profile template you want linked to this subscriber.

Options:	Up to 8 alphanumeric characters

Default:	NONAME

Related Topics:

Subscriber Template


Banner and Prompt NAME

Mandatory

This is the name of the configured Banner and Prompt template you want linked to this subscriber.

Options:	Up to 8 alphanumeric characters

Default:	NONAME

Related Topics:

Subscriber Template


Protocol Spoof Enable

This parameter allows you to enable/disable protocol spoofing.  To enable this feature, select the name of the configured Protocol Spoofing template you want to link to this subscriber from the list.

Options:	Yes
No

Default:	No

Related Topics:

Subscriber Template

Protocol Spoofing


ANI Template

Once the Subscriber template has been configured and named, it can be linked to a DNIS (dialed number) or ANI (caller’s number) template.  This allows the Subscriber template to be invoked based on the DNIS or ANI of the incoming call.

Related Topics:

ANI

Subscriber NAME


ANI

This is the caller’s telephone number.  This must be a complete match with the ANI forwarded by the modem.  .

Options:	Up to 17 digits

Default:	0

Related Topics:

ANI Template


Subscriber NAME

This is the name of the configured Subscriber template you want linked to this template.

Options:	Up to 8 alphanumeric characters

Default:	NONAME


DNIS Template

Once the Subscriber template has been configured and named, it can be linked to a DNIS (dialed number) or ANI (caller’s number) template.  This allows the Subscriber template to be invoked based on the DNIS or ANI of the incoming call.

Related Topics:

DNIS

Subscriber NAME


DNIS

This is the dialed telephone number.  This must be a complete match with the DNIS forwarded by the modem.

Options:	Up to 17 digits

Default:	0

Related Topics:

DNIS Template


Autocall Template

This template allows you to enter a set of up to five X.25 addresses to be dialed automatically when this feature is enabled in the Subscriber template.  If the first address does not  match or connect, the call is attempted on another Remote Host number.

NOTE:  Before Autocall can be created, you must configure at least one Remote Host template.

Related Topics:

Name

Remote Host 1 NAME

Remote Host 2 NAME

Remote Host 3 NAME

Remote Host 4 NAME

Remote Host 5 NAME

Call Timeout (secs)


Remote Host 1 NAME

This is the name of the primary configured Remote Host template you want linked to this autocall configuration.

Options:	Up to 8 alphanumeric characters

Default:	NONAME

Related Topics:

Autocall Template


Remote Host 2 NAME

This is the name of a secondary configured Remote Host template you want linked to this autocall configuration.  A connection with this host will be attempted if the primary host cannot be reached.

Options:	Up to 8 alphanumeric characters

Default:	NONAME

Related Topics:

Autocall Template


Remote Host 3 NAME

This the name of a third configured Remote Host template you want linked to this autocall configuration.  A connection will be attempted if Host2 cannot be reached.

Options:	Up to 8 alphanumeric characters

Default:	NONAME

Related Topics:

Autocall Template


Remote Host 4 NAME

This the name of a fourth configured Remote Host template you want linked to this autocall configuration.  A connection will be attempted if Host3 cannot be reached.

Options:	Up to 8 alphanumeric characters

Default:	NONAME

Related Topics:

Autocall Template


Remote Host 5 NAME

This the name of a fifth configured Remote Host template you want linked to this autocall configuration.  A connection will be attempted if Host4 cannot be reached.

Options:	Up to 8 alphanumeric characters

Default:	NONAME

Related Topics:

Autocall Template


Call Timeout (secs)

This is the time allowed in which to establish a connection.

Options:	0 to 1800 (seconds)

Default:	0 (No timeout)

Related Topics:

Autocall Template


Autoconnect Template

This template allows you to control PVC-type connections.  Permanent Virtual Circuits are hard coded and automatically create a connection between one terminal and one host when a call comes in to the PAD.

Related Topics:

Name

Subnetwork ID

Logical Channel Identifier

Continuity Test


Subnetwork ID

This is the subnetwork (A = port 1 on the NIC; B = port 2 on the NIC) through which the PVC should be established.

Options:	A
B

Default:	A

Related Topics:

Autoconnect Template


Logical Channel Identifier

This is the logical channel number (LCN) on which the PVC should operate.  The range you configure for the PLP in the X.25 protocol stack must be compatible with this channel, or the call will be invalid.  Refer to the Virtual Circuit Range parameters you configured in the Total Control Dialogbook.

Options:	0 to 4095

Default:	0

Related Topics:

Autoconnect Template


Continuity Test

This parameter is not currently implemented.

Related Topics:

Autoconnect Template


Dial Out Support

When dial-out calls are supported, this template allows the remote host to dial in to the PAD, configure a modem (Start string), and reconfigure the modem back to its original state when the call is finished (Stop string).  Refer to the Quad Modem Reference Manual for modem factory defaults and command options.

Related Topics:

Name

Start String

Stop String

Modem Forwarding Chars

Modem Forwarding Timer (msecs)

CUD Call Screening


Modem Forwarding Chars

Options:	No data forwarding characters used

Alphanumeric characters (A-Z, a-z, 0-9)

CR

ESC, BEL, ENQ, ACK characters

DEL, CAN, DC2 characters

ETX, EOT characters

HT, LF , VT, FF  characters

All other ASCII control characters not included above (except DEL)

Default:	Alphanumeric characters (A-Z, a-z, 0-9)

Related Topics:

Dial Out  Support Template


Modem Forwarding Timer (msecs)

This parameter sets the forwarding timer in the modem.  A value of 0 means there is no forwarding timer.

Options:	0 to 65535 (in 5 millisecond units)

Default:	0

Related Topics:

Dial Out  Support Template


CUD Call Screening

When enabled, the database will check the security configuration for the Remote Host template.  If security is enabled, the password in the Call User Data of the Dial Out call will be checked against the password configured in the Remote Host template.  The call is then accepted or denied on the basis of CUD Call Screening.

The CUD should be 12 characters in length (e.g., HOSTPASSSUBC).  The first four characters (HOST) should be the name of the remote host template.  The next four (PASS) specify the password configured in the remote host template.  The last four (SUBC) specify the name of the subscriber template associated with the dialout call.

Options:	Yes
No

Default:	No

Related Topics:

Dial Out  Support Template


Terminal Flow Control Template

When enabled, this template allows the PAD to use in-band flow control (XON/XOFF) to control data transfer from the terminal to the remote host.  Once the flow control is established, the PAD retries to send the data in its buffer until there is a successful data transfer or until the call is disconnected.

Related Topics

Name

Retries

Timeout between Retries (50 msecs)

Send XON/XOFF


Retries
Retries--Terminal

Specify how many times you want the PAD to retry data transfer before the call is disconnected.  If the PAD polls the terminal the number of times configured in this parameter and no data is received, the PAD will disconnect the call.  A value of 0 disables this feature (the PAD will never drop the call solely because of a flow control condition).

Options:	0 to 60

Default:	0

Related Topics:

Termial Flow Control Template


Timeout between Retries (50 msecs)--Terminal

Specify the interval between retries.  A value of 0 means the PAD will continuously poll the terminal for data (for as many retries as are configured) with no delay between polling.

Options:	0 to 60 in 50 millisecond units

Default:	0

Related Topics:

Termial Flow Control Template


Send XON/XOFF--Terminal

Options:	Yes	=	PAD will send Ctrl-S and Ctrl-Q characters to the terminal when there is a flow control condition.

No	=	PAD will only use retries and timeouts to the terminal in response to a flow control condition.

Default:	No

Related Topics:

Termial Flow Control Template


Remote Host Template

This template allows you to describe a remote host that you want the PAD to connect with for a particular subscriber.

NOTE:  Before a Remote Host can be created, you must first configure Address, X.28 Facilities, and CUD templates or the Remote Host template will be invalid.

Related Topics

Name

Flow Control Enable

Security

Password

Flow Control NAME

Address NAME

X.28 Facility NAME

CUD NAME


Flow Control Enable

If enabled, the call will use flow control as configured in the named Flow Control template.

Options:	Yes
No

Default:	No

Related Topics:

Remote Host Template


Security Enable

If enabled, the PAD checks for a password in the Call User Data of the call request.

Options:	Yes
No

Default:	No

Related Topics:

Remote Host Template


Password

If enabled, the PAD will compare the CUD password in the call request to the password entered here.  If the passwords do not match, the call is not accepted.

Options:	Up to 5 alphanumeric characters

Default:	BYUSR

Related Topics:

Remote Host Template


Flow Control NAME

This is the name of the configured Flow Control template you want linked to this remote host.

Options:	Up to 8 alphanumeric characters

Default:	NONAME

Related Topics:

Remote Host Template


Address NAME

This is the name of the configured Address template you want linked to this remote host.

Options:	Up to 8 alphanumeric characters

Default:	NONAME

Related Topics:

Remote Host Template


X.28 Facility NAME

This is the name of the configured X.28 Facility template you want linked to this remote host.

Options:	Up to 8 alphanumeric characters

Default:	NONAME

Related Topics:

Remote Host Template


CUD NAME

This is the name of the configured Call User Data template you want linked to this remote host.

Options:	Up to 8 alphanumeric characters

Default:	NONAME

Related Topics:

Remote Host Template


Host Flow Control Template

When enabled, this template allows the PAD to use in-band flow control (XON/XOFF) to control the data transfer from the remote host to the terminal.  Once the flow control is established, the PAD continues to try to send the data in its buffer until there is a successful data transfer or until the call is disconnected.

NOTE:  This template is only valid for a call placed to a host alias.

Related Topics:

Name

Retries

Timeout between Retries (50 msecs)

Send XON/XOFF


Retries--Host

Specify how many times do you want the PAD to retry data transfer before the call is disconnected.  If the PAD polls the host the number of times configured in this parameter and no data is received, the PAD will disconnect the call.  A value of 0 disables this feature (the PAD will never drop the call solely because of a flow control condition).

Options:	0 to 60

Default:	0

Related Topics:

Host Flow Control Template


Timeout between Retries (50 msecs)--Host

Specify the interval between retries.  A value of 0 means the PAD will continuously poll the host for data (for as many retries as are configured) with no delay between polling.

Options:	0 to 60 in 50 millisecond units

Default:	0

Related Topics:

Host Flow Control Template


Send XON/XOFF--Host

Options:	Yes	=	PAD will send Ctrl-S and Ctrl-Q characters to the host when here is a flow control condition.

No	=	PAD will only use retries and timeouts to the host in response to a flow control condition.

Default:	No

Related Topics:

Host Flow Control Template


Address Template

This template allows you to set up and describe a set of addresses for remote hosts on the X.25 network.  This template is associated (linked) with the remote host template, so a remote host name (alias) can link the caller to the appropriate remote host on the X.25 Packet Switched Network.

NOTE:  If NSAP is used, the DTE address must be defined, and Channel PVC must be selected as the Aflag.

Related Topics:

Name

Subnetwork (A, B or S)

Aflags

DTE Address

NSAP

Allow X.29 Reselection


Subnetwork (A, B or S)

This is the physical port the call should be routed through to the X.25 Packet Switched Network.  If S is selected, the PAD will switch between ports according to availability.

Options: 	A
B
S

Default:	A

Related Topics:

Address Template


Aflags

This parameter identifies the format of the Address Flags.

Osinsap	=  OSI encoded NSAP

X.25 Extended	=  Non-OSI encoded extended address

Channel PVC	=  DTE address contains X.121 address

Options:	Osinsap
X.25 Extended
Channel PVC

Default:	Osinsap

Related Topics:

Address Template


DTE Address

This parameter identifies the address of your remote host.

Hex digits in the DTE address must have been enabled when you configured the PLP Localization Information parameters in the protocol stack (via the Total Control Manager Dialogbook).  Otherwise, only digits 0-9 are allowed.

Options:	Up to 17 decimal characters (0, 1, 2, 3...9, A, B...F)

Default:	Null

Related Topics:

Address Template


NSAP

This parameter identifies the Network Service Access Point where network service is supplied to the remote host.

Options:	Up to 40 decimal characters (0, 1, 2, 3...9, A, B...F)

Default:	Null

Related Topics:

Address Template


Allow X.29 Reselection

This parameter indicates the PAD response to a remote host X.29 reselection message.

Options:	Yes	=	PAD allows reselection upon host X.29 reselection request

No	=	PAD will disconnect call if the host requests reselection.

Default:	No

Related Topics:

Address Template


X.28 Facility Template

This template allows you to set up X.28 features you will use when establishing a call (one template for each remote host).

Related Topics:

Name

Fast Select

Reverse Charge

Local Packet Size

Remote Packet Size

Local Window Size

Remote Window Size

NUI Field

RPOA Field

CUG Type

CUG Field


Fast Select

This parameter indicate if up to 128 bytes in the CUD field of the Call Request packet are allowed.

If you want to enable this feature, Fast Select must have been enabled when you configured the PLP Subscription Options in the protocol stack.

Options:	Yes
No

Default:	No

Related Topics:

X.28 Facility Template


Reverse Charge

This parameter indicates if calls requesting Reverse Charging are allowed.

If you want to enable this feature, Reverse Charge must have been enabled when you configured PLP Subscription Options in the protocol stack.

Options:	Yes
No

Default:	No

Related Topics:

X.28 Facility Template


Local Packet Size

This parameter specifies the local packet size—must agree with the configured PLP Packet and Window Sizes in the protocol stack.

Options:	4 to 9 (24 to 29)

Default:	8

Related Topics:

X.28 Facility Template


Remote Packet Size

This parameter specifies the remote packet size—must agree with the configured PLP Packet and Window Sizes in the protocol stack.

Options:	4 to 9 (24 to 29)

Default:	8

Related Topics:

X.28 Facility Template


Local Window Size

This parameter specifies the local window size—must agree with the configured PLP Packet and Window Sizes in the protocol stack.

Options:	1 to 127 octets

Default:	3

Related Topics:

X.28 Facility Template


Remote Window Size

This parameter specifies  the remote window size—must agree with the configured PLP Packet and Window Sizes in the protocol stack.

Options:	1 to 127 octets

Default:	3

Related Topics:

X.28 Facility Template


NUI Field

This is the Network User Identifier supplied by the network provider.

If you want to enable this feature, NUI Override must have been enabled when you configured the PLP Subscription Options in the protocol stack.

Options:	0 to 64 alphanumeric characters

Default:	Null

Related Topics:

X.28 Facility Template


RPOA Field

This parameter specifies  the sequence of one or more Recognized Private Operating Agency (RPOA) transit networks.

The RPOA must be within the originating country through which the call is routed when more than one RPOA exists in a sequence of one or more gateways.

Options:	1 to 4 four-digit numbers

Default:	Null

Related Topics:

X.28 Facility Template


CUG Type

Deines the Call User Group type, if any.

Multiuser CUGs allow more than two users in the group, with defined access (outgoing/incoming/preferential).

Bilateral CUGs allow mutual preferential access between two users.

Options:	Muliuser
Bilateral
None

Default:	None

Related Topics:

X.28 Facility Template


CUG Field

This parameter specifies the Call User Group (if one exists) associated with the current call.

Options:	Up to four digits

Default:	0000

Related Topics:

X.28 Facility Template


Call User Data Template

This template allows you to set up CUD parameters in the call request packet that the remote host can recognize.  The CUD field in a call request packet can contain information such as a name, password, and subaddress of a remote host.  The remote host can only be assigned one CUD template.

Related Topics:

Name

CUD (Max 128 Chars)


CUD (Max 128 Chars)

If you intend to include spaces in the Call User Data, the entire CUD content must be enclosed in quotation marks.

If the data in the CUD is more than 12 characters, the PAD will automatically use Fast Select.  If the host does not subscribe to Fast Select, the call will be rejected.

Options:	Up to 128 ASCII characters

Default:	Null

Related Topics:

Call User Data Template


Modem Port Template

This template allows you to specify port characteristics for the particular modem that you want to use for a connection.  If matching ANI and DNIS are not available for a call, the modem port configuration can provide information necessary for connection (because it is linked to a Subscriber template).

Related Topics:

Name

Max Retries

Max Retry Time-Out (secs)

Port State

Application Type

Allow Writes to NVRAM

Subscriber NAME


Name--Port

This is the number of the port for which this template is configured.

Options:	1 to 48
(or 24 numbers between 1 and 48 if you purchased the 24 channel PAD)

Default:	1

Related Topics:

Modem Port Template


Max Retries

Specify how many times do you want the PAD to retry data transfer before the call is disconnected.

Options:	0 to 60

Default:	0

Related Topics:

Modem Port Template


Max Retry Time-Out (secs)

This is the interval between allowed retries.

Options:	5 to 100 in seconds

Default:	10

Related Topics:

Modem Port Template


Port State

This is the current status of the modem port.

Options:	Inservice
Outofservice

Default:	Outofservice

Related Topics:

Modem Port Template


Application Type

This is the type of call to be placed through this port.

Options:	Dialin
Dialout

Default:	Dialin

Related Topics:

Modem Port Template


Allow Writes to NVRAM

This indicates if the modem is allowed to write to nonvolatile memory.

Options:	Yes
No

Default:	No

Related Topics:

Modem Port Template


User ID Template

This template allows you to set up password security and link it to a subscriber configuration.  The name of the User ID template also serves as the security User ID.

Related Topics:

User ID

Password (Max 8 Chars)

Subscriber NAME


User ID

This is the security User ID.

Options:	Up to 5 alphanumeric characters

Default:	NONAME

Related Topics:

User ID Template


Password (Max 8 Chars)

This is the security password.

Options:	0 to 8 alphanumeric characters

Default:	BYUSR

Related Topics:

User ID Template


X.25 Subnetwork Configuration Template

This template selects the physical port on the rear panel of the V.35/RS232 NIC that will be used for a connection, and its subnetwork ID characteristics.  The “subnetwork” is the physical interface between the PAD and the PSN.  Physical port 1=Subnetwork A and physical port 2=Subnetwork B.

Related Topics:

Subnetwork ID in Use

Address NAME


Subnetwork ID in Use

This indicates if the subnetwork ID is currently in use.

Options:	Yes
No

Default:	No

Related Topics:

X.25 Subnetwork Configuration Template


Address NAME

This is the name of the configured Address template you want linked with this configuration.

Options:	USRXA
USRXB

Related Topics:

X.25 Subnetwork Configuration Template


VISA Protocol Spoofing Template

This template allows you to set up VisaI (single transaction) and VisaII (multiple transaction) spoofing.  See Protocol Spoofing for a spoofing overview.

Related Topics:

Name

Delete 1st ENQ Recvd from Remote Host to POS Terminal

Max ENQ Retransmission Count

ENQ Retransmission Timeout (50 msesc)

Spoof ENQ

Spoof ACK

Spoof EOT

Max Number of Reads for EOT from Remote Host

Interval between EOT Reads (50 msecs)

Delay before Sending 1st ENQ to POS Terminal (50 msecs)

Wait Timer for Reading Data from POS Terminal (50 msecs)


Delete 1st ENQ Recvd from Remote Host to POS Terminal

If you enable this parameter and the Host has ENQ (enquire messaging) enabled, the PAD will delete the first ENQ the Host sends to the terminal.

Options:	Yes
No

Default:	No

Related Topics:

VISA Protocol Spoofing Template


Max ENQ Retransmission Count

This is the number of times the PAD should send ENQs (enquire messages) to the terminal if data is not received.

Options:	0 to 10

Default:	10

Related Topics:

VISA Protocol Spoofing Template


ENQ Retransmission Timeout (50 msecs)

This is how long the PAD will wait between ENQs (enquire messages) to the terminal.

Options:	0 to 255 in 50 millisecond units

Default:	5

Related Topics:

VISA Protocol Spoofing Template


Spoof ENQ

If you enable this parameter, the PAD spoofs ENQs (enquire messages) to the terminal.

Options:	Yes
No

Default:	No

Related Topics:

VISA Protocol Spoofing Template


Spoof ACK

If you enable this parameter, the PAD sends an ACK/NAK to the terminal (ACK if CRC is correct; NAK if CRC is incorrect) upon receipt of data from the terminal.

Options:	Yes
No

Default:	No

Related Topics:

VISA Protocol Spoofing Template


Spoof EOT

If you enable this parameter, the PAD spoofs an EOT (end of transmission message) to the terminal after receipt of the last transaction from the terminal.

Options:	Yes
No

Default:	No

Related Topics:

VISA Protocol Spoofing Template


Max Number of Reads for EOT from Remote Host

This is the number of times the PAD reads EOTs (end of transmission messages) from the host before disconnecting the call.

Options:	0 to 10

Default:	0

Related Topics:

VISA Protocol Spoofing Template


Interval between EOT Reads (50 msecs)

This is how long the PAD waits for an EOT (end of transmission message) from the host before timing out and retrying.

Options:	0 to 150 in 50 millisecond units

Default:	0

Related Topics:

VISA Protocol Spoofing Template


Delay before Sending 1st ENQ to POS Terminal (50 msecs)

This is how long the PAD waits after Carrier Detect before sending the initial ENQ (enquire message) to the terminal.  If too short a time, the terminal may not read the ENQ.

Options:	0 to 125 in 50 millisecond units

Default:	0

Related Topics:

VISA Protocol Spoofing Template


Wait Timer for Reading Data from POS Terminal (50 msecs)

This is how long the PAD waits to receive data from the modem before “cycling through.”

Creating this delay may optimize PAD efficiency when it supports simultaneous calls on many modems.

Options:	0 to 125 in 50 millisecond units

Default:	0

Related Topics:

VISA Protocol Spoofing Template


PAD Modes of Operation

The X.25 PAD operates at all times in one of two states:  command or data transfer.  The terminal user will only be exposed to the data transfer state of PAD operation.  The PAD administrator may have to deal with possible conflicts between the two states.

The key is how you set the X.3 parameters when you set up a Subscriber.  When you set parameters 1–22, you are telling the PAD how you want it to operate while in a command state.  There are two ways to tell the PAD how you want it to operate during a data transfer:  set Parameter 100 (PAD Overwrite Mode) in the X.3 Profile template, or enter a specific X.28 terminal command.

The specific X.28 terminal commands (Message, Native, Pipe, or Transparent) map almost exactly to Parameter 100, but the X,3 Profile template allows five options: Message, Native, Pipe, Transparent, and None.  Modes determine whether the PAD or the host will provide echoing, editing, and formatting functions.

The PAD always operates in a mode, even if you select None for Parameter 100.  Unless you select a different mode, the PAD will transfer data in Message mode—ideal for interactive calls, but inefficient for other data transfers you may want to make.  The most important thing to know about Message mode is that it allows the PAD to act on X.29 messages.

Related Topics:

What Mode to Use?

Message Mode

Native Mode

Pipe Mode

Transparent Mode

None


What Mode to Use?

U.S. Robotics offers several modes to best meet your needs.

♦	If you are making interactive calls and you want X.29 messages to act on the terminal, it is best to use Message mode.

♦	If the user needs the PAD to control the terminal, either Message or Transparent mode should be used.

♦	If the control of X.3 parameter 10 (Line Folding) is given to the PAD, Message mode should be selected and the PAD will automatically insert a carriage return and line feed after the first 80 characters are received.

♦	If the control of X.3 parameter 10 (Line Folding)is given to the host, Transparent mode should be used.

♦	If a user is running a screen editor or similar application where the host application must carry out all screen formatting functions, Native mode should be used.

♦	If a user wants a raw data transfer operation for an autocall in a noninteractive mode, Pipe mode could be used.

Related Topics:

PAD Modes of Operation

Message Mode

Native Mode

Pipe Mode

Transparent Mode

None


Message Mode

Default.  This mode allows the user to define line-at-a-time exchanges between the PAD and the remote host, with the responsibility of detailed terminal control (including echoing typed input, input editing, and output formatting) resting on the PAD.

The PAD will always operate in this mode during data transfer unless another mode is selected in parameter 100 of the X.3 Profile template.

This mode affects X.3 parameters 2, 4, 10, and 15:

2   = 1 (Echo)
4   = 0 (No Idle Timer)
10 = 80 (Line Folding after 80 characters)
15 = 1 (Editing enabled)

Related Topics:

PAD Modes of Operation

What Mode to Use?

Native Mode

Pipe Mode

Transparent Mode

None


Native Mode

This mode allows the user to define character-at-a-time input forwarding to the host.  The host has total control of the terminal, including echoing user input, input editing, and output formatting.  Characters typed in are immediately forwarded to the host.

This mode affects X.3 parameters 2, 4, 10, and 15:

2   = 0 (No Echo)
4   = 1 (1/20th second Idle Timer Delay)
10 = 0 (No Line Folding)
15 = 0 No Editing)

Related Topics:

PAD Modes of Operation

What Mode to Use?

Message Mode

Pipe Mode

Transparent Mode

None


Pipe Mode

This mode allows the user to direct raw data to the host via a non-interactive autocall.

NOTE:	While in PIPE mode, you can’t escape data transfer and go in to Command mode.

This mode affects X.3 parameters 1, 2, 5, 9, 10, 12, 13, 14, 15, and 22:

1   = 0 (No Escape from Data Transfer)
2   = 0 (No Echo)
5   = 0 (No Flow Control)
9   = 0 (No Carriage Return Padding)
10 = 0 (No Line Folding)
12 = 0 (No Flow Control by Terminal)
13 = 0 (No Line Feed Insertion)
14 = 0 (No Padding after Line Feed)
15 = 0 (No Editing)
22 = 0 (No Page Wait)

Related Topics:

PAD Modes of Operation

What Mode to Use?

Message Mode

Native Mode

Transparent Mode

None


Transparent Mode

This mode allows the user to define line-at-a-time exchanges between the PAD and the remote host, with the responsibility of output formatting resting on the host.

This mode affects X.3 parameters 2, 4, 10, and 15:

2   = 1 (Echo)
4   = 0 (No Idle Timer)
10 = 0 (No Line Folding)
15 = 1 (Editing Enabled)

Related Topics:

PAD Modes of Operation

What Mode to Use?

Message Mode

Native Mode

Pipe Mode

None


None

Selecting None means the X.3 parameters are the same in both data transfer and command states.  If None is selected in parameter 100, the PAD will operate in Message mode, but it won’t overwrite parameters 2, 4, 10, and 15.

Related Topics:

PAD Modes of Operation

What Mode to Use?

Message Mode

Native Mode

Pipe Mode

Transparent Mode


X.3 Default PAD Profiles

U.S. Robotics provides seven standard X.3 profiles to the PAD user, including the ITU-T’s Simple and Transparent profiles.

These profiles can be tailored to your application permanently via the RS-232 User Interface configuration or temporarily on a call-in-progress basis via X.28/X.29 commands.

X.3 PARAMETER	Simple Profile (ITU-T 90)	Transparent Profile  (ITU-T 91)	USR-Defined Profiles (V1–5)
Escape from Data Transfer	Permitted	Not permitted	Permitted
Echo	Echo	No Echo	Echo
Data Forwarding Characters	CR, ESC, BEL, ENQ, ACK, DEL, CAN, DC2, EXT, EOT, HT, LF, VT, FF, All other ASCII control characters (except DEL)	No data forwarding characters used	EXT, EOT, HT, LF, VT, FF
Idle Timer	No idle timer used	1 second delay	No idle timer used
Flow of Control by PAD	Use XON and XOFF	No XON/OFF	No XON/OFF
Control of PAD Service Signals	Service signals are transmitted	No service signals	Service signals are transmitted
Action on Break	PAD sends X.25 Reset packet	PAD sends X.25 Reset packet	PAD sends X.25 Reset packet AND X.25 Interrupt packet
Discard Output	Normal data delivery	Normal data delivery	Normal data delivery
Carriage Return Padding	No padding	No padding	No padding
Line Folding	No line folding	No line folding	V1=72 V2=120 V3=80 V4=132 V5=80
Speed—Read Only	9600 bps	9600 bps	9600 bps
Flow of Control by Terminal	Use XON and OFF	No XON/OFF	Use XON and OFF
Line Feed Insertion	No line feed insertion	No line feed insertion	After CR on input from terminal AND After echo of CR to terminal
Padding after Line Feed	No padding	No padding	No padding
Editing	No editing	No editing	Editing enabled
Character-Delete Character	ASCII character 127	ASCII character 127	ASCII character 127
Buffer Delete Character	ASCII character 24	ASCII character 24	ASCII character 24
Buffer Display Character	ASCII character 18	ASCII character 18	ASCII character 18
Editing Service Signals	Hard copy terminal	Hard copy terminal	V1–4=Hard copy              terminal V5=Video         Display          terminal
Echo Mask	All characters echoed	All characters echoed	No echo of delete, display, and all other ASCII control characters
Parity Treatment	Parity not detected or checked	Parity not detected or checked	Parity not detected or checked
Page Wait	No page wait	No page wait	No page wait


Protocol Spoofing

The U.S. Robotics PAD may be configured to spoof VisaI and VisaII protocols for POS applications, thus reducing transaction processing time.

Without spoofing, the PAD is transparent to both the Terminal and the Remote Host.  Commands and messages are transferred to each side via the PAD, but the PAD merely connects the call.  The disadvantage to this calling method is that it is time consuming.

With the spoofing available from the USR X.25 PAD, however, data transmission time can be cut dramatically.  You can set up your protocol spoofing method while configuring subscribers.  The PAD then implements spoofing every time an incoming call is associated with a subscriber configured for spoofing.

Rrelated Topics:

VISA Protocol Spoofing Template

Subscriber Template

Transaction without Spoofing

Transaction with Spoofing


Transaction without Spoofing

The POS call in the Figure illustrates the simplicity of a straight POS transaction without spoofing.  As simple as this process appears, it is of a relatively long duration.

1.	The terminal goes off hook.  The X.25 PAD associates the terminal with a Remote Host configuration and places the call to that host.

2.	The host accepts the call and sends a call accept packet to the terminal.

3.	The host sends an ENQ (enquire) packet, telling the terminal to begin sending data.

4.	The terminal sends the Request packet, consisting of a Start Transmission character, the Request information, an End Transmission character, and LRC (error detection).

5.	When the host receives the Request, it sends an acknowledgment to the terminal.

6.	The host reads the LRC code and analyzes the Request packet.  If the Request has been corrupted, the host sends another ENQ, telling the terminal to send the data again.

7.	When the host has successfully read the request, it sends a Response packet.

8.	The terminal reads the LRC (error detection) code and analyzes the Response packet.  If the Response has been corrupted, the terminal sends an ENQ, telling the host to send the data again.

9.	When the terminal has successfully read the Response packet, it sends the host an ACK (acknowledgment).

10.	The host sends the terminal an EOT) (end of transmission) packet.

11.	The call is  disconnected.


Transaction with Spoofing

The POS call in the Figure illustrates a POS transaction completed with spoofing configured.  Although this call appears to be more complex, it takes much less time to complete the transaction.

1.	The terminal goes off hook.  The X.25 PAD simultaneously answers the call and sends an ENQ (enquire) packet, telling the terminal to begin data transmission.  It also associates the terminal with a Remote Host configuration and places the call to that host.

2.	The host accepts the call and sends a call accept packet to the PAD.

3.	The host sends an ENQ packet, telling the terminal to begin sending data, which is intercepted and disregarded by the PAD because it has already asked the terminal for data.

4.	The terminal sends the Request packet, consisting of a Start Transmission character, the Request information, an End Transmission character, and LRC (error detection).

5.	The PAD checks the data to be sure there has been no data corruption.  If the data is not corrupted, the PAD sends an ACK (acknowledgment) to the terminal; otherewise, it sends a NAK (Negative Acknowledgement).  When noncorrupted data is received, the PAD maintains a copy of the Request in a special buffer and forwards the Request to the host.

6.	When the host receives the Request, it reads the LRC code and analyzes the Request.  If the Request has been corrupted, the host sends it sends a NAK to the PAD.  The PAD resends the Request data it has maintained in its special buffer.

8.	When the host has successfully processed the request, it sends a Response packet.

9.	The terminal reads the LRC code and analyzes the Response.  If the Response has been corrupted, the terminal sends a NAK to the PAD, which then resends the Response data it has maintained in its special buffer.

10.	When the terminal has successfully processed the Response packet, it sends the host an ACK.

NOTE:  This final ACK is never spoofed by the X.25 PAD.

11.	The PAD forwards the terminal acknowledgement to the host and sends an EOT (end of transmission) packet to the terminal.

12.	The host sends the terminal an EOT packet, which the PAD intercepts and disregards because it has already instructed the terminal to end the call.

13.	The call is disconnected.


ESC

Escape


BEL

(<Ctrl-G>, ring bell)


ENQ

 (<Ctrl-E>, enquiry)


ACK

 (<Ctrl-F>, acknowledge)


(DEL

 (delete)


CAN

 (<Ctrl-X>, cancel)


DC2

 (<Ctrl-R>, device control)


EXT
ETX

 (<Ctrl-C>, end of text)


EOT

 (<Ctrl-D>, end of transmission)


HT

 (<Ctrl-I>, horizontal tab)


LF

(<Ctrl-J, line feed)


VT

 (<Ctrl-K>, vertical tab)


FF

 (<Ctrl-L>, form feed)


CR

 (carriage return)


ITU-T

International standards body called the International  Telecommunications Union-Telecommunications Sector ( formerly known as the CCITT).


X-ON

(<Ctrl-Q>)


X-OFF

 (<Ctrl-S>)


NAK

 (<Ctrl-U>, negative acknowledge)


STX

 (<Ctrl-B>, start of text)


SOH

 (<Ctrl-A>, start of header)


ETB

 (<Ctrl-W>, end of transmission block)


DEL

Delete