Avaya BCM50 User Manual download pdf (Page 30)

30 Chapter 3 Hardware installation

NN40020-308

MBM wiring

Telephone lines connect to the expansion unit through the connectors on the MBM.

For more information, see the chapter “Connecting the cables to the BCM50 system” in the

Installation and Maintenance Guide.

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 BCM50 system

must be connected to an outlet with a third-wire ground. In addition, install blank

faceplates in all unused slots. The covers on all units must be in place at the completion of

any servicing.

Warning: Electrical shock warning

The MBMs were safety approved for installation into the expansion unit. The installer and

user are responsible for ensuring that installation of the hardware does not compromise

existing safety approvals.

BEFORE YOU OPEN the main unit or expansion unit, unplug the network

telecommunication cables and disconnect the unit from the ac power source.

Station modules: Connect the ports on these modules only to approved digital telephones

and peripherals with the proper cables on a protected internal wiring system.

Do not connect any telephones to wiring that runs outside the building.

Read and follow the installation instructions carefully.

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Avaya BCM50 User Manual Page 30