Nortel Networks BCM1000 - Manual (Page 159)

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Installation and Maintenance Guide
Chapter 9
Starting the system
The BCM1000 and BCM1000e are each powered through an ac outlet. The voltage required
depends on the geographical location of the units.
All systems are initially set at the factory, based on the intended destination. You must check that
the voltage and wiring are correct for you system before you connect any of the units to the power
source. Incorrect power settings result in equipment damage.
Read the following warnings. You must protect yourself and the Business Communications
Manager units from possible electrical shocks.
Note: Newer standard power supplies (2.5 hardware), and all redundant power supplies
can auto-select voltage. Ensure you are aware of what type of power supply your system
has.
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.
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 BCM1000 and
BCM1000e, if there is one, 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.
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 near network lines.
These leakage currents normally safely flow to Protective Earth ground via the power
cord.
System shutdown: You must disconnect the media bay module cables, MSC and network
cables from the front of the units before disconnecting the power cord from an earthed.
System startup: You must reconnect the power cords to an earthed outlet before
reconnecting the media bay, MSC and network cables to the front of the unit.