Nortel BCM50 2.0 System Overview Manual

Also see for BCM50 2.0: User guide User guide Installation guide Configuration guide User guide

Contents

Nortel BCM50 2.0 System Overview Manual Manual pdf 10 page image

10 Chapter 2 System OverviewNN40020-200NN40020-200BCM50 hardwareBCM50 main unitThe BCM50 main unit (with telephony only) provides call processing and simple data-networkingfunctions. It provides connections for 12 digital telephones, four (PSTN) lines, four analog stationports, and 4 connections for auxiliary equipment (auxiliary ringer, page relay, page output, andmusic source). The BCM50 main unit does not have a router, but it does have four LAN ports: oneis the OAM port for technicians, and the other three are for basic LAN connectivity.A main unit contains the following field-replaceable units:• 1 programmed hard disk• 1 cooling fan• 1 router card (BCM50a and BCM50e only)Additional BCM50 hardwareThe BCM50 expansion unit is a compact unit that accommodates the Media Bay Modules used byother BCM platforms. The BCM50 main unit can support a maximum of two expansion units. See“BCM50 expansion unit and media bay modules” on page 18 for more information.BCM50 is available in six configurations:• BCM50: The compact main unit, suitable fornetworks where integrated data-routingcapability is not required or networks thatalready have an IP network.• BCM50a: Includes an ADSL router and anextra expansion port.• BCM50e: Includes an integrated Ethernetrouter and an extra expansion port.• BCM50b: Includes an integrated Dual ISDNS/T BRI.• BCM50be: Includes an Ethernet router anda Dual ISDN S/T BRI.• BCM50ba: Includes ADSL router and a DualISDN S/T BRI.For more information about the integratedrouters, see “BCM50e and BCM50a: BCMsystems with integrated routers” on page 13 or“BCM50b, BCM50ba, and BCM50be: BCMsystems with integrated BRIs” on page 16.For more information about BCM50 hardware,see the BCM50 Installation and MaintenanceGuide.