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Installation and Maintenance Guide

Chapter 10

Wiring the modules

This chapter describes how to wire the cables that connec t to the station and trunk m odules.
• Station modules require 25-pa ir wir ed cabl es to connect the modules to the equipment in the
telephone room where your telco demarcation point is located. Use a qualifie d techn ical
professional to ensure the cable wiring and your interior telep hone wiring are correct .
• Trunk modules, DECT base stations, and FEM cables are connected using RJ -type jac ks.
These cables can be supp lie d by qualified technical personne l to en sure the corr ect pin-out.
Figure 52 provides an overview of the pro cess f or connect ing trunk and station wiring to the
Business Communic ations Manag er media bay modules.
Warning: Use only qualified persons to service the system.
The installation and service of this unit must be performed by service personnel with the
appropriate training and experience. Service per sonnel must be aware of the hazards of
working with telephony equipment and wiring. They must have expe rience in techniques
that minimize any danger of shock or equipm ent damage.
Warning: Leakag e cu rrents
Service personnel must be ale rt to the possi bility of high leakage curre nts becoming
available on metal system surfaces d uring power line f ault events on network lines. These
leakage currents norm ally safely f low to Protec tive Earth ground via the power c ord.
However, if the ac power is unplugged prior to disconne cting the cables from the front of
the base unit, this hazard can occur.
System shutdown: You must disconnect the media bay modul e cables , net work
connections, and MSC auxiliary eq uipment connections from the system before
disc onn e ct ing the p ow er co rd fro m an ear thed o u tlet.
System startup: You must reconnect the power cor ds to an earthed outlet before
reconnecting the cables to the media bay modules , ne twork card s, or MSC card.
Danger: Electrical shock hazards
Electrical shock hazards f rom the telecommu nicat ions network and ac mains are possible
with this equipment. To minimize risk to ser vice pers onne l and users, the BCM1000 an d
the BCM1000e, if there is one, must be conne cted to an outle t with a third wire ground.
In ad dition, all unused slots must have blank facepla tes installed. The covers on all units
must be in place at the complet ion of any servicing.