How The Meridian Mail Bus Is Configured; Bus Extender Cable Replacement - Northern Telecom DMS-100 Series Manual

9-16 Cabinet and I/O connections

How the Meridian Mail bus is configured

Figure 9-8 illustrates how the Meridian Mail bus (MMBus) is physically
configured.
Figure 9-8xxx
MMBus physical configuration
3
2
3
2

Bus extender cable replacement

To replace an extender cable between NTGX04BA bus extender transition
modules, refer to the DMS VoiceMail Card Replacement Procedures (NTP
297-7001-502) for instructions on how to disable the affected transition
modules.
After replacing an extender cable, monitor the reloading of all the affected
nodes. Typically, the nodes on the secondary electronics shelf are affected.
Refer to Figure 9-3 for an illustration of the affected nodes. For example,
node 10 should have a SEER sequence as follows:
6099 OS Loaded successfully 10
297-7001-503 Standard 02.02 March 1994
Secondary Electronic Shelf
Primary Electronic Shelf
Rear View
0
7 Extender
Cables
0
7