Nortel Networks BCM1000 - Manual (Page 19)

BCM1000, BCM 3.5 addendum 19
P0607659 02 BCM1000 Installation and Maintenance Guide
Wiring the GATM
The other trunk media bay modules are connected using RJ-type jacks. The GATM, however, uses an
amphenol connector. These cables can be supplied by qualified technical personnel to ensure the correct
pin-out.
To connect the Global analog trunk module (GATM) to the network, follow these steps:
1. On the front of the module, locate the amphenol connector.
2 Wire one end of the cable to the telco demarcation blocks of the building.
3 Wire the other end of the cable to the analog lines. Refer to the figure and table on the next page.
7
0 0 0 on on on off on off
1 1 1 on on off off on off
2 2 2 on off on off on off
3 3 on off off off on off
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 personnel must be aware of the hazards of working with telephony
equipment and wiring. They must have experience in techniques that minimize any danger of shock or
equipment damage.
Warning: Leakage currents
Service personnel must be alert to the possibility of high leakage currents becoming available on metal
system surfaces during power line fault events on network lines. These leakage currents normally safely
flow to Protective Earth ground via the power cord. However, if the ac power is unplugged prior to
disconnecting the cables from the front of the base unit, this hazard can occur.
System shutdown: You must disconnect the media bay module cables from the system before
disconnecting the power cord from a grounded outlet.
System startup: You must reconnect the power cords to an grounded outlet before reconnecting the
cables to the media bay modules.
Danger: Electrical shock hazards
Electrical shock hazards from the telecommunications network and ac mains are possible with this
equipment. To minimize risk to service personnel and users, the Business Communications Manager
system must be connected to an outlet with a third wire ground.
In addition, all unused slots must have blank faceplates installed. The covers on all units must be in
place at the completion of any servicing.
Table 2 Global Analog Trunk Module DIP switch settings