Paradyne COMSPHERE 3000 Series Installation Manual page 60

Figure 3-22 shows one Auxiliary Backplane installed
over Slots 9 –16 and another being installed over
Slots 1– 8 of the COMSPHERE 3000 Series Carrier.
When you install two auxiliary backplanes on a carrier,
you must use a diagnostic channel extension cable to
connect them together. For more information about this
cable, refer to Appendix B, Models 3151/3161 Interface
Connections.
Figure 3-22. COMSPHERE 3000 Series Carrier with Two Auxiliary Backplanes
3000-A2-GA31-80
Once installed, the Auxiliary
Backplane extends down into
the Network Interface Module
(NIM) area of the 3000 Series
Carrier. The extension of the
backplane displaces a NIM card
in that part of the carrier and
prohibits the use of dial modems
in any slot covered by the
Auxiliary Backplane assembly.
December 1994
Installation
NOTE
3-33