Nortel Networks BCM50 - Manual (Page 55)

Chapter 2 Introducing the BCM50 hardware 55
Installation and Maintenance Guide
Router card
The BCM50e main unit has a router card that uses an Ethernet interface to connect to a WAN edge
device (for example, an external ADSL modem or a cable modem).
The BCM50a main unit has a router card that uses an ADSL interface to connect the BCM50
system to the Internet Service Provider (ISP).
For information about replacing the router card, see Replacing an internal component on page 189.
Field-replaceable units
The table Field-replaceable units on page 55 and the table Media bay modules on page 55 provide
a list of field-replaceable units (FRU) and media bay modules (MBM) for the BCM50 system. Use
these tables as references when you need to order, replace, or install hardware components. The
tables provide references to the component descriptions and installation procedures.
Note: The product engineering code (PEC) can change over time; consult the
catalog for the latest information.
Table 6 Field-replaceable units
Component description FRU Description Replacement procedure
Router card with Ethernet connector “Router card” “Replacing an internal component”
Router card with ADSL interface “Router card” “Replacing an internal component”
Hard disk, programmed “Hard disk” “Replacing an internal component”
Power supply “Power supply” “Replacing a power supply”
Cooling fan “Cooling fan” “Replacing an internal component”
Table 7 Media bay modules (Sheet 1 of 2)
Component description FRU Description Installation procedure
4x16 MBM “4x16 media bay module” “To install an MBM”
Analog DID “Analog direct inward dialing media
bay module” “To install an MBM”
ASM8 MBM “Analog station media bay modules” “To install an MBM”
BRIM MBM “Basic rate interface media bay
module” “To install an MBM”
DSM16+ MBM “Digital station media bay module” “To install an MBM”
DSM32+ MBM “Digital station media bay module” “To install an MBM”
DTM MBM “Digital trunk media bay module” “To install an MBM”