User's Manual
455U Radio Modem Module User Manual
Page 50 © November 2004
command has a different effect depending on whether it is issued from the RS-
232 main serial port (connects to the remote modem’s serial ports) or from the
Diagnostic serial port (Connects to the remote modems diagnostic functions).
ATE Local Echo Control. Enable/Disable Command Echo.
E0 Disable Local Echo
E1•
Enable Local Echo
ATH Hang up/Hook control. End a call, or disable incoming calls.
ATI Modem Identity / Firmware version
ATO Go to on-line
ATQ Quiet mode (Suppress/enable response codes)
Q0•
Enable response codes
Q1 Disable response codes
ATR RS-485 Serial Baud Rate selection.
R1 Set 600 baud
R2 Set 1200 baud
R3 Set 2400 baud
R4 Set 4800 baud
R5•
Set 9600 baud
R6 Set 14,400 baud
R7 Set 19,200 baud
R8 Set 28,800 baud
R9 Set 31,250 baud
R10 Set 38,400 baud
R11 Set 57,600 baud
R12 Set 76,800 baud
R13 Set 93,750 baud (For Profibus)
R14 Set 115,200 baud
R15 Set 187,500 baud (For Profibus)
ATSn? Read value from S-Register n
ATSn=xx Set value of S-Register n to xx
ATV Verbal/Numeric Response Codes
V0 Numeric response codes
V1•
Verbose response codes
ATX Extended Response Codes. Allows more detailed response codes, including










