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6.1
Introduction
The following procedures assume that your MultiMuxes (local and remote) have been installed properly (refer to
Chapter 4) and the appropriate channel devices have been connected to each channel.
6.2
MultiMux Operating Procedures
The MultiMux operating procedures cover entering parameters for both your local and remote MultiMux units.
Table 6-1. MultiMux Operating Procedures
Step Procedure
1Turn power on to your MultiMux and supervisory console, type AT and then hit Return. If you get an OK message
back, you are communicating with the command port.
2Execute the parameter display command to display current channel parameter status for your local MultiMux by
entering the following:
ATL (hit Return)
The following will be displayed on your supervisory console:
Local Channel Parameters/ Node # 00
STP FLOW ENQ/ PASS PASS DEST DEST LINK
CHN SPD WD BIT PAR CTRL ACK ECHO PACE EIA XON CHN NODE A/B
01 19200 8 1 NONE XON/XOFF OFF OFF OFF OFF OFF 01 01 A
02 19200 8 1 NONE XON/XOFF OFF OFF OFF OFF OFF 02 01 A
03 19200 8 1 NONE XON/XOFF OFF OFF OFF OFF OFF 03 01 A
04 19200 8 1 NONE XON/XOFF OFF OFF OFF OFF OFF 04 01 A
05 19200 8 1 NONE XON/XOFF OFF OFF OFF OFF OFF 05 01 A
06 19200 8 1 NONE XON/XOFF OFF OFF OFF OFF OFF 06 01 A
07 19200 8 1 NONE XON/XOFF OFF OFF OFF OFF OFF 07 01 A
08 19200 8 1 NONE XON/XOFF OFF OFF OFF OFF OFF 08 01 A
09 19200 8 1 NONE XON/XOFF OFF OFF OFF OFF OFF 09 01 A
10 19200 8 1 NONE XON/XOFF OFF OFF OFF OFF OFF 10 01 A
11 19200 8 1 NONE XON/XOFF OFF OFF OFF OFF OFF 11 01 A
12 19200 8 1 NONE XON/XOFF OFF OFF OFF OFF OFF 12 01 A
13 19200 8 1 NONE XON/XOFF OFF OFF OFF OFF OFF 13 01 A
14 19200 8 1 NONE XON/XOFF OFF OFF OFF OFF OFF 14 01 A
15 19200 8 1 NONE XON/XOFF OFF OFF OFF OFF OFF 15 01 A
16 19200 8 1 NONE XON/XOFF OFF OFF OFF OFF OFF 16 01 A
OK
Table 6-1. MultiMux Operating Procedures (cont.)
Step Procedure
3To reconfigure the channel parameters to match your actual channel requirements enter commands as described in
Chapter 5 of this manual.
4If you change operational parameters they are not incorporated into your running system until you execute a Store
New Parameters (&W) command:
AT&W (hit Return)
The parameters will be stored in non-volatile memory and become effective immediately. When power is turned off, the
parameters will be saved.
5If you wish to display the composite link status, execute the List Composite Link Configuration command by entering
the following:
AT$L (hit Return)
The following will be displayed on your system monitor if your MultiMux is configured with an internal composite link
DSU on links A and B:
Configuration of Port A: Composite Link
DSU TYPE SPEED CLLCKINGLOOPBACK
EXTERNAL 128K INTERNAL OFF
Configuration of Port B: Composite Link
DSU TYPE SPEED CLOCKINGLOOPBACK
EXTERNAL 128K INTERNAL OFF