Lines And Extensions Connection - Nortel Business Communications Manager 450 Installation Manual

Lines and extensions connection

The telephone lines and extensions connect to the BCM450 main unit through
an RJ-21 telephony connector on an MBM installed in the expansion cabinet.
Prerequisites to lines and extensions connection
• You must connect the power cords to a grounded outlet before you
connect the telephony and data networking cables.
• Do not connect Digital Station ports (DSM16+, DSM32+) and Analog
Station ports (GASM8) to an exposed plant. This includes Digital Station
ports that reside on the combination MBMs (G4x16 and G8x16). Use only
proprietary Nortel Digital Station Sets to connect to digital ports and
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DANGER
Risk of injury from electric shock
Connect the ports on station modules only to approved digital
telephones and peripherals with the proper cables on a protected
internal wiring system.
DANGER
Risk of injury from electric shock
Electrical shock hazards from the telecommunications network and
AC mains can occur with this equipment. To minimize risk to service
personnel and users, you must connect the BCM450 system to an
outlet with a third-wire ground.
CAUTION
Use only qualified persons to service the system
Service personnel with appropriate training and experience must
perform the installation and service of this unit. Ensure service
personnel are 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
Nortel Business Communications Manager 450 1.0
Installation — System
NN40160-301 01.04 Standard
July 2009