Meridian America Link/Customer Controlled Routing - Manual (Page 203)

Chapter 9: Meridian Link/CCR interface cabling 185
Meridian Link Release 5C/CCR Release 3C Installation and Upgrade Guide
Backplane cable rerouting for Options 21Ð81 CE/PE and
IPE backplanes
In a standard configuration, an IPE Module can be placed in any four
adjoining peripheral slots on an Options 21Ð81 CE/PE or IPE shelf. This is
possible when the slots are fully cabled to accommodate 24 tip and ring
pairs per slot. However, older CE/PE or IPE shelves (NT8D37 AA or DC
vintage) do not have fully cabled backplanes. In those cases, you must
reroute backplane cables inside the CE/PE or IPE shelf before installing the
IPE Module.
To determine whether you have a fully cabled CE/PE or IPE shelf, check
the back of the CE/PE backplane (NT8D11) or the IPE backplane
(NT8D37). If the backplane has eight cables connected on each side, your
backplane is fully cabled therefore you can install the IPE Module without
rerouting cables. If there are any shrouds on the backplane left unattached,
follow the appropriate procedure in this section to modify the CE/PE or IPE
shelf.
In the standard configuration of the NT8D11 CE/PE backplane and
NT8D37 IPE backplane for a software release prior to Meridian 1 X11
Release 18, some slots on the backplane are fully cabled to accommodate 24
tip and ring pairs (three cable connectors). Most of the backplane slots,
however, accommodate 16 pairs (two cable connectors). By adding and
reconfiguring backplane cabling in the backplane slots, you can ensure that
each backplane slot can accommodate 24 pairs. Once you have finished the
rerouting process, the CE/PE or IPE cabinet can support the IPE Module.
!
CAUTION
Risk of system interruption
It is important to note that you should reroute only those
cables connected to the segment of the backplane where
the IPE Module is installed.
Backplane cables connect each connector port of an I/O panel with the
appropriate slot on the backplane. For example, a backplane cable connects
connector port A to a backplane slot. At the I/O panel, each backplane cable
connects to a 50-pin connector. At the backplane end, each backplane cable