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Table Of Contents
AT Command Set and Register Summary for V.110 12-Port Modules
Sn? (Read Configuration Register)
%Vn (Display Firmware Version)
%Z (Reads Crash Firmware Version)
&W (Store Current Configuration)
\ Qn (Serial Port Flow Control)
S7 (Wait for Carrier After Dial)
S12 (Escape Code Guard Time and Remote Access Attention Sequence Guard Time)
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
Remember the following guidelines when entering AT commands:
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All commands except A/ (Repeat Last Command) are preceded by the AT prefix and followed by Return.
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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
AT (Attention)
Informs the card that commands are being sent to it.
Note
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 16175551234Table 1
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
Hang Up Command Options
In (Identification)
Identifies various information about the TA. lists command options.
Table 3
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
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
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
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:
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Default
X1
Table 7
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
Set Line Speed Command Options
%Vn (Display Firmware Version)
Displays the TA firmware version. lists command option.
Table 9
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
%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
&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
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
\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
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:
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•
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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