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Micro House PC Hardware Library Volume II: Network Interface Cards And Modems Micro House PC Hardware Library Volume II: Network Interface Cards And Modems
by Micro House International, Inc. and Scott Mueller
Que, Macmillan Computer Publishing
ISBN: 078971664x   Pub Date: 06/17/98
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DIAGNOSTIC LED(S) (NORMAL OPERATION)
LED Color Status Condition
PWR Unidentified On Power is on
PWR Unidentified Off Power is off
VC Unidentified On Voice call connected
VC Unidentified Off Voice call not connected
DC Unidentified On Data call connected
DC Unidentified Off Data call not connected
TR Unidentified On DTR signal is high
TR Unidentified Off DTR signal is low
TD Unidentified On TA is transmitting data
TD Unidentified Off TA is not transmitting data
RD Unidentified On TA is receiving data
RD Unidentified Off TA is not receiving data
DS Unidentified On Signal is synchronized
DS Unidentified Blinking Signal is synchronized but D-channel protocols not established
DS Unidentified Off Signal is not synchronized or ISDN is not connected

SUPPORTED STANDARD COMMANDS
Basic AT CommandS
+++, ‘comma’, A/
A, E, H, O, Q, V, W, X, Z
&C, &D, &K, &S, &V, &W, &Z
S-Registers
S0, S1, S2, S3, S4, S5, S7, S95

Proprietary AT Command Set

ANSWER WITH USER-TO-USER INFORMATION
Type: Immediate
Format: AT [cmds] *A,”xxxx” [cmds]
Description: Answers the incoming call. If the user enters text in quotes as shown above, and if the switch supports it, the text will be transmitted via the D channel to the remote TA.

COMMUNICATIONS MODE
Type: Configuration
Format: AT [cmds] &Qn [cmds]
Description: Sets the mode with which the TA will attempt to communicate with the DTE and the remote TA.
Command Function
&Q0AT command mode enabled; TA will communicate with the remote TA in asynchronous mode.
     &Q1 DTR dialing enabled; TA will communicate with the remote TA in asynchronous mode.
     &Q2 Dial-on-data enabled; TA will communicate with the remote TA in asynchronous mode.
     &Q3 AT command mode enabled; TA will communicate with the remote TA with PPP async-to-sync conversion.
     &Q4 Configuration command mode enabled. See Proprietary Command Set (Commands) and Proprietary Command Set (Parameters) sections for more information.

CONFIGURATION COMMAND
Type: Immediate
Format: AT [cmds] #[param]=nn
AT [cmds] #[param]?
Description: The first command executes SET [param] nn and the second command executes SHOW [param]. See the Proprietary Command Set (Commands) and Proprietary Command Set (Parameters) sections for more information on these commands and a list of parameters.

DATA COMPRESSION AND CALL BUNDLING
Type: Configuration
Format: AT [cmds] &Bn [cmds]
Description: Selects data compression and call bundling modes.
Command Function
&B0Data compression and call bundling disabled.
     &B1 Data compression enabled, call bundling disabled.
     &B2 Data compression disabled, call bundling enabled.
     &B3 Data compression and call bundling enabled

DIAL
Type: Immediate
Format: AT [cmds] D<#>*n [cmds]
Description: Dials the number indicated. If specified, the *n indicates the subaddress requested.

DIAL WITH USER-TO-USER INFORMATION
Type: Immediate
Format: AT [cmds] *D/<#>*n/“xxxx” [cmds]
Description: Dials the number indicated. If specified, the *n indicates the remote subaddress the TA should attempt to connect to. If the user enters text in quotes as shown above, and if the switch supports it, the text will be transmitted via the D channel to the remote TA.

DISCONNECT WITH USER-TO-USER INFORMATION
Type: Immediate
Format: AT [cmds] *H,”xxxx” [cmds]
Description: Disconnects from the current call. If the user enters text in quotes as shown above, and if the switch supports it, the text will be transmitted via the D channel to the remote TA.


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