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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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DSR SIGNAL
Type: Configuration
Format: AT [cmds] &Sn [cmds]
Description: Controls the behavior of the Data Set Ready signal.
Command Function
&S0 DSR forced high.
&S1 DSR normal.
&S2 DSR forced high except at disconnect.
&S3 DSR forced high except in test mode.
&S4 DSR forced low in test mode.
&S5 DSR forced high except at disconnect or in test mode.

DTR SIGNAL
Type: Configuration
Format: AT [cmds] &Dn [cmds]
Description: Controls the behavior of the Data Terminal Ready signal.
Command Function
&D0 DTR forced high.
&D1 Dial the first stored number in virtual mode on high DTR.
&D2 DTR normal.
&D3 Dial the first stored number on high DTR.
&D4 Dial the second stored number on high DTR.

FRONT PANEL LOCK
Type: Configuration
Format: AT [cmds] _Pn [cmds]
Description: Selects whether the front panel of the DSU is locked.
Command Function
_P0 Front panel unlocked.
_P1 Front panel locked.

ID NUMBER SET
Type: Configuration
Format: AT [cmds] _N=nn [cmds]
Description: Sets an ID number for multipoint applications.

INACTIVITY TIMER
Type: Configuration
Format: AT [cmds] \Tn [cmds]
Default: 0
Range: 0 - 90
Unit: 1 minute
Description: Sets the amount of time that the modem must be idle before it will disconnect.

LINE TYPE
Type: Configuration
Format: AT [cmds] &Ln [cmds]
Description: Selects the type of leased line the DSU is connected to.
Command Function
&L1 DSU is connected to AT&T line.
&L2 DSU is connected to Sprint line.

LOOPBACK TEST-LOCAL
Type: Configuration
Format: AT [cmds] _An [cmds]
Description: Selects whether the DSU will respond to a request from the DTE for a local loopback test.
Command Function
_A0 Deny request for local loopback test.
_A1 Grant request for local loopback test.

LOOPBACK TEST-LOCAL
Type: Configuration
Format: AT [cmds] _Rn [cmds]
Description: Selects whether the DSU will respond to a request from the DTE for a remote loopback test.
Command Function
_R0 Deny request for remote loopback test.
_R1 Grant request for remote loopback test.

LOCAL SERIAL PORT SPEED
Type: Configuration
Format: AT [cmds] %Kn [cmds]
Description: Sets the speed of operation for the local serial port.
Command Function
%K3 Set speed to 2400bps.
%K4 Set speed to 4800bps.
%K5 Set speed to 9600bps.
%K6 Set speed to 19.2Kbps.
%K7 Set speed to 38.4Kbps.
%K8 Set speed to 56Kbps for synchronous mode, 57.6Kbps for asynchronous mode.

LOOPBACK SPEED
Type: Configuration
Format: AT [cmds] %Bn [cmds]
Description: Sets the speed of operation for the local serial port when performing local loopback testing.
Command Function
%B1 Set speed to 1200bps.
%B2 Set speed to 2400bps.
%B3 Set speed to 4800bps.
%B4 Set speed to 9600bps.
%B5 Set speed to 19.2Kbps.
%B6 Set speed to 38.4Kbps.
%B7 Set speed to 48Kbps for synchronous mode only.
%B8 Set speed to 56Kbps for synchronous mode, 57.6Kbps for asynchronous mode.
%B9 Set speed to 64Kbps for synchronous mode only.

PASSWORD
Type: Configuration
Format: AT [cmds] %Pn [cmds]
Description: Selects whether the DSU is protected by a password.
Command Function
%P0 Password disabled.
%P1 Password enabled.

PASSWORD SET
Type: Configuration
Format: AT [cmds] %P=xxxx [cmds]
Description: Sets the password to xxxx.

PASSWORD VERIFY
Type: Configuration
Format: AT [cmds] %P>xxxx [cmds]
Description: Verifies the password as xxxx.


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