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Cisco AS5200 Series Universal Access Servers

AT Command Set and Registers - V.110 12-Port Modules

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AT Command Set and Register Summary for V.110 12-Port Modules

Table Of Contents

AT Command Set and Register Summary for V.110 12-Port Modules

Entering AT Commands

Alphabetic Command Set

A (Answer)

A/ (Repeat Last Command)

AT (Attention)

D {dial string} (Dial)

H (Hang Up)

In (Identification)

O (Enter Connect State)

Qn (Quiet)

Sn? (Read Configuration Register)

Vn (Result Code Form)

Xn (Extended Result Codes)

Z (Soft Reset)

^ Caret Command Set

^H (Load New Image)

$ Dollar Command Set

$Bn (DTE Speed)

% Percent Command Set

%Bn (Set Line Speed)

%Vn (Display Firmware Version)

%Z (Reads Crash Firmware Version)

& Ampersand Command Set

&Cn (Serial Port DCD Control)

&Dn (DTR Control)

&F (Restore Command Defaults)

&V (Display Values)

&W (Store Current Configuration)

\ Backslash Command Set

\ Qn (Serial Port Flow Control)

\Tn (Inactivity Timer)

\Z

S Register Summary

S2 (Escape Code Character)

S7 (Wait for Carrier After Dial)

S12 (Escape Code Guard Time and Remote Access Attention Sequence Guard Time)

S38

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AT Command Set and Register Summary for V.110 12-Port Modules


Product Numbers: AS52-12-TA-V110=, AS5248-V110=, AS5248-V110-DC=, AS5260-V110=, AS5260-V110-DC=

This document describes the AT commands and S register for the V.110 12-port modules in Cisco AS5200 universal access servers. Each module includes onboard terminal adapters (TAs) that can terminate up to 12 V.110 bit-rate-adapted digital calls.

This document contains the following sections:

Entering AT Commands

Alphabetic Command Set

^ Caret Command Set

$ Dollar Command Set

% Percent Command Set

& Ampersand Command Set

\ Backslash Command Set

S Register Summary

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Entering AT Commands

Remember the following guidelines when entering AT commands:

All commands except A/ (Repeat Last Command) are preceded by the AT prefix and followed by Return.

You can enter up to 20 commands per line. If you enter more than 20 commands, an error message is displayed and none of the commands are executed.

You can enter up to 256 characters per line, regardless of the number of commands.

If you enter a command without an argument, the argument is assumed to be zero. For example, if you enter the AT%H command without an argument, that is the same as entering AT%H0.

You can enter AT commands at any serial port speed up to 19200 bps.

The V.110 module operates in one of two modes: idle state (no connection established with another TA) or connect state. Use the following commands to change operating states:

To enter the command state from the connect state without breaking the connection, enter +++ (Escape Code) without pausing and do not press Return.

To return to the connect state, enter AT0 and press Return.

Alphabetic Command Set

This section describes commands that begin with an alphabetic (A to Z) character.

A (Answer)

Sets the network rate to 19200 bps and immediately attempts to start framing. This command is used for back-to-back testing only.

A/ (Repeat Last Command)

Re-executes the last command.


Note   A/ is not preceded by the AT prefix and is not followed by Return.


AT (Attention)

Informs the card that commands are being sent to it.


Note   AT must precede all commands except A/ and +++.


D {dial string} (Dial)

Dials a telephone number to establish a connection. The D command must be the last command on the command line. The dial string can contain up to 98 characters; valid characters are the digits 0 to 9, the command option listed in , and # and * for tone dialing. The TA ignores invalid characters; dial strings longer than 98 characters return an error. For example, to dial the telephone number 1 617 555 1234, enter the following command:

D 16175551234
 lists command options.

Table 1

Command
Description

L

Redials the last telephone number.


Dial Command Option

The D command without any options is used for back-to-back testing.

H (Hang Up)

Disconnects from the remote system and hangs up the telephone line. lists command options.

Table 2

Command
Description

H0

Go on-hook.

H1

Go off-hook.


Hang Up Command Options

In (Identification)

Identifies various information about the TA. lists command options.

Table 3

Command
Description

I0

Displays the four-digit module product code.

I1

Runs a checksum on firmware ROM and displays the four-digit result.

I2

Displays the versions of the boot code, firmware, and FPGA.

I3

Displays the self-test status.


Identification Command Options

O (Enter Connect State)

Sets the TA to the connect state.

Qn (Quiet)

Configures the TA to send result and status codes, such as OK, BUSY, and RING, to your workstation. lists command options.

Default

Q0

Table 4

Command
Description

Q0

Result codes enabled.

Q1

Result codes disabled.


Quiet Mode Command Options

Sn? (Read Configuration Register)

Displays the contents of S register n (where n is a decimal number). lists command options.

Range

0 to 38

Default

S0

Table 5

Command
Description

S2

Escape character.

S7

Wait time for carrier.

S12

Escape character guard time (default 1 sec).

S38

Wait time after DTR asserted (default 50 sec).


Read Configuration Register Command Options

Vn (Result Code Form)

Selects the result code format sent to your workstation. lists command options.

Default

V1

Table 6 Result Code Form Command Option

Command
Description

V0

Digit format.

V1

Text format.


Xn (Extended Result Codes)

Selects the extended result code format sent to your workstation. lists command options.

The following commands also affect the result code format:

The Vn command (Result Code Form) selects short or long form result codes.

Default

X1

Table 7

Command
Description

X0

Displays the "CONNECT" message when a connection is established.

X1

Displays the "CONNECT XXXX" message, where XXXX is the network speed.


Extended Result Codes Command Options

Z (Soft Reset)

Resets the parameters to defaults, goes on-hook, and forces the module into the autobaud state.

^ Caret Command Set

This section describes commands that begin with a caret (^).

^H (Load New Image)

Loads a new image. DTR must be deasserted.

$ Dollar Command Set

This section describes commands that begin with a dollar sign ($).

$Bn (DTE Speed)

Sets the DTE speed, where n is one of the following speeds: 600, 1200, 2400, 4800, 9600, or 19200 bps.

% Percent Command Set

This section describes commands that begin with the percent sign (%).

%Bn (Set Line Speed)

Sets the line speed. lists command options.

Default

Same as the DTE speed determined by autobaud. displays the command options.

Table 8

Command
Description

%B2

600 bps

%B3

1200 bps

%B4

2400 bps

%B5

4800 bps

%B6

9600 bps

%B7

19200 bps


Set Line Speed Command Options

%Vn (Display Firmware Version)

Displays the TA firmware version. lists command option.

Table 9

Command
Description

%V1

Displays module type and version.


Display Firmware Version Command Option

%Z (Reads Crash Firmware Version)

Displays the crash information contained in the V.110 module nonvolatile storage relating to the last crash. Returns "No crash info" if a crash has not occurred. displays the crash reason codes.

Table 10

Command
Description

%Z

Displays crash information.

Returns the following if the crash was caused by an exception:
   Crash Reason
   Crash Code
   Crash SR
   Crash PC
   Crash Address


Crash Reason Codes

& Ampersand Command Set

This section describes the commands that begin with an ampersand sign (&).

&Cn (Serial Port DCD Control)

Controls the Data Carrier Detect (DCD) signal level. Use this command if your workstation requires DCD to be off at certain times. lists command options.

Default

&C1

Table 11

Command
Description

&C0

DCD is always on.

&C1

DCD follows the state of carrier from the remote system and turns on after the connect message.


Serial Port DCD Control Command Options

&Dn (DTR Control)

Specifies the TA action to take when DTR transitions off. The on-to-off transition of DTR must last as long as the value specified in register S25. Positive transitions of DTR (off-to-on) within 5 sec after disconnect are ignored. lists command options.

Default

&D3

Table 12

Command
Description

&D0

Ignores DTR while in data mode.

&D1

Enters the command state when detecting an on-to-off transition of DTR.

&D2

Sets the TA on-hook when detecting an on-to-off transition of DTR.

&D3

Sets the TA on-hook and resets when detecting an on-to-off transition of DTR and prepares the serial port to accept an AT command. Also restores the factory default settings.


DTR Control Command Options

&F (Restore Command Defaults)

Restores the factory default configuration.

&V (Display Values)

Displays S register and option values.

&W (Store Current Configuration)

Stores the active commands and S registers.

\ Backslash Command Set

This section describes the commands that begin with a backslash sign (\).

\ Qn (Serial Port Flow Control)

Selects the hardware flow control method used in the serial port. lists command options.

Default

\Q3

Table 13

Command
Description

\Q0

Disables flow control.

\Q1

Receives flow control.

\Q2

Transmits flow control.

\Q3

Receives and transmit flow control.


Serial Port Flow Control Command Options

\Tn (Inactivity Timer)

Specifies the time, in minutes, that the TA waits before hanging up when data is not sent or received. The inactivity timer is available only during normal link connections. \T0 disables the timer.

Range

0 to 136 min.

Default

\T0 (disabled)

\Z

Programs the boot sector of Flash memory with the current version of boot code.


Note   This operation takes a number of sec to perform. We recommend that this operation be performed while the V.110 module is in a quiet state and is not connected and handling traffic.


S Register Summary

The TA saves configuration settings in S registers. Each register controls a single TA function or is bit-mapped to control several functions. This section describes commands to display and change register values. We recommend that, wherever possible, you use the following commands only to display register contents and use the AT command set to change register values.

S2 (Escape Code Character)

Specifies the character used for the three-character escape code sequence. When the TA is in the connect state and receives the escape code sequence, it enters the command state. Register S12 sets the guard time that must be present before and after the escape code character.

Range

0 to 255 (ASCII decimal)

Default

43 (+)

S7 (Wait for Carrier After Dial)

Specifies the time that the TA waits to:

Establish framing.

Reestablish framing after it has been lost.

Range

0 to 255 sec

Default

60 (sec)

S12 (Escape Code Guard Time and Remote Access Attention Sequence Guard Time)

Sets the minimum quiet time before and after the three-character escape code. The interval between characters in the escape code or remote access attention sequence must be less than this guard time.

In normal mode, register S12 sets the guard time that precedes and follows the attention character sequence. It should be set to the same value on both the originating and answering TAs.

Range

0 to 255 (0.02-sec increments)

Default

50 (1 sec)

S38

Sets the amount of idle time before the TA times outs.

Range

0 to 255 (sec)

Default

20 (sec)

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