User guide

DLM4100 User’s Manual
P/N 161-09977-001B
5
On- On Line – ATOn switches the modem from the command mode to the data mode.
n=0 Return on-line with no retrain
n=1 Initiate retrain returning on-line
Qn- Reponses – ATQn determines if the modem will issue responses
n=0 Send responses*
n=1 No responses
SR?- Interrogate Register – ATSr? request the current value in register Sr.
SR=n- Set Register Value – ATsr=n sets the value of register Sr to n
Vn- Result Codes – ATVn sets the modem to issue numeric or full word result codes
n=0 Numeric result codes
n=1 English word result codes
Wn- Connect Message Rate – ATWn determines whether the data rate reported in the Connect
response is the host date rate, the link data rate or whether both are provided along with the error control
and data compression protocols negotiated.
n=0 Send “Connect” at DTE rate
n=1 Report line speed, DTE speed and Link protocol
n=2 “Connect” reports Link speed
Xn- Result Code Set – ATXn selects which set of result codes the modem may send.
n=0 Result codes 0 to 4
n=1 Result codes 0 to 5 and 10
n=2 Result codes 0 to 6 and 10
n=3 Result codes 0 to 5, 7 and 10
n=4 Full result codes*
Zn- Reset – ATZn executes a soft reset to the modem and resets the modem configuration
n=0 Reset to user profile 0
n=1 Reset to user profile 1
&Cn- DCD Operation – AT&Cn determines the operation of the DCD output.
n=0 DCD is forced active
n=1 DCD indicates a valid carrier