Nortel Networks BCM200, 400 4.0 manual Introducing the BCM hardware, Main units

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Chapter 2

Introducing the BCM hardware

The Nortel Business Communications Manager (BCM) system provides private network and telephony management capability to small and medium-sized businesses. The BCM system integrates voice and data capabilities, voice over Internet protocol (VoIP) gateway functions, and quality of service (QoS) data-routing features into a single telephony system. The BCM system is a compact system that enables you to create and provide telephony applications for use in a business environment.

Refer to the following sections for information on the BCM hardware components:

•“Main units”

•“BCM400 advanced function tray” on page 37

•“Base function tray component hardware” on page 39

•“BCM expansion unit (BCM400 only)” on page 49

•“MBM bays and backplane” on page 50

•“Media bay modules (MBMs)” on page 51

•“BCM400 expansion gateway” on page 62

•“BCM components” on page 63

•“Field replaceable units (FRU)” on page 69

•“Telephones and adapters” on page 72

Note: Some of the components described in this document are not available in all areas. Ask your Nortel sales agent for information about availability.

Main units

The primary hardware component in the BCM system is the main unit:

•BCM200 main unit (see “BCM200 main unit”)

•BCM400 main unit (see “BCM400 main unit” on page 34)

Warning: External equipment connected to the auxiliary ringer, page relay, page output, and music-on-hold interfaces must use safety extra low voltage (SELV). All four interfaces are SELV, and the external equipment connected to these interfaces must be SELV. If these interfaces are not SELV, you must use external line isolation units (LIU).

BCM200/400 4.0 Installation and Maintenance Guide