User guide

Appendix E – Using Out of Band Management
48 Multi-Tech Systems, Inc. MT9234ZBA-Series User Guide
Console Port Final Setup
To complete setup:
● Send the following command string to the modem connected to the console port of the Cisco router:
AT%R1&W0
● The %R1 command sets E0, Q1, &D0, &K0, $SB9600, and %S1:
E0
Turns command echo off
Q1
Turns result codes off
&D0
Ignores DTR from the DTE
&K0
Selects no flow control
$SB9600
Sets the serial baud rate to 9600 bps.
%S1
Disables command mode at all serial speeds except 115200 bps.
● The &W0 command stores the commands to memory.
The modem is now configured for use on the Cisco router console port. Note that command echo and result
codes have been turned off.
If you need to send additional AT commands to the modem after configuring it, the modem provides little
feedback that it has received and acted upon the command. Only commands such as ATI0 that request specific
data from the modem send any data to the DTE as an indication that the modem has accepted the command.
Temporarily turning on command echo and result codes might make it easier to reconfigure the modem. When
the modem is connected to the console port, turn the modem off and then on again. This will set the serial baud
rate to 9600 bps as the $SB9600 command is implemented.
Console Port Connections
To connect a personal computer to the console port, use the RJ-45-to-RJ-45 roll-over cable and either the RJ-45-
to-DB-25 female DTE adapter or the RJ-45-to-DB-9 female DTE adapter (labeled “TERMINAL”).
Cable Pin-outs and Cabling Guide
Console Modem
(DTE) Console port Console cable Adapter Adapter (DCE)
signal RJ-45 pin RJ-45 pin DB-9 pin DB-25 pin signal
RTS 1 8 8 4 RTS
DTR 2 7 6 20 DTR
XMT 3 6 2 2 XMT
GND 4 5 5 7 GND
GND 5 4 5 7 GND
RCV 6 3 3 3 RCV
DSR 7 2 4 6 DSR
CTS 8 1 7 5 CTS