Nortel Networks BCM1000 manual Introducing the Business Communications Manager

Chapter 1 Introducing the Business Communications Manager 21

•DSM 32 — The 32-port Digital Station media bay module (DSM 32) connects to a maximum of 32 digital telephones.

•DSM 32+ — This Digital Station media bay module provides the same functionality as the DSM 32. This module can be set to single or double density. Double density settings allow the module to support 32 telephones on one DS30 bus.

•DECT — This module allows radio-based wireless handsets to access systems that are configured to accept the Digital Enhanced Cordless Telecommunications (DECT) profile. The module connects to radio base stations, which receive and transmit signals to the handsets. Refer to “Mobility services by region” on page 237 to determine the profiles that can use the DECT protocol. DECT base station installation information is provided in a separate document, the DECT Installation and Operations Guide.

•FEM — The Fiber Expansion Media Bay Module (FEM) provides an easy upgrade from a Norstar system to a Business Communications Manager system by connecting a maximum of six Norstar expansion modules to a FEM installed in the BCM1000.

•The DDI MUX:

—provides the functionality of a DTM media bay module (T1 digital lines only)

—splits the incoming T1 line so that some of the lines are used for voice traffic and some of the lines are used for data traffic

—provides either the (Channel Service Unit) CSU or (Data Service Unit) DSU functionality to support connections to data terminal equipment (DTE), such as a router or a bridge

—connects to network devices that supportV.35 interfaces

—provides end-to-end transparent bit service

—supports loopbacks between the Enterprise Edge and the internal Business Communications Manager components, and between the Enterprise Edge and digital terminal equipment

•BCM1000e — a separate cabinet with six additional bays for media bay modules. It connects to the BCM1000 through an DS256 RJ45 connector. A Business Communications Manager five-meter DS256 cable is included with the BCM1000e (expansion cabinet).

•Telephones and adapters — Business telephones and adapters connect to the media bay modules installed in the BCM1000. Business Communications Manager supports Norstar and Business Series Terminal telephones, as well as IP-based Nortel Networks telephones.

The Nortel Networks 20XX IP telephones have separate installation and operations documentation. Refer to the main index on your system CD.

The system also supports three types of wireless telephone systems, including Companion, DECT, and the Symbol NetVision/NetVision Data telephones, plus the cordless Business Series Terminals T7406. Installation documentation for these systems is provided in separate documentation for each system. Refer to “Telephones and adapters” on page 48 for information about the handsets and the hardware they use to connect to the system.

Installation and Maintenance Guide