Nortel Networks BCM50 manual Field-replaceable units, Router card

Chapter 2 Introducing the BCM50 hardware 53

Note: The analog trunk interfaces and analog telephony device interfaces on the RJ-21 telephony connector are compatible with the North American telephony interface standards only.

If your BCM50 system is in a country that uses a different telephony standard, you must use media bay modules for your analog trunks and media bay modules or ATAs for your analog telephony devices.

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 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, refer to “Replacing an internal component” on page 189.

Field-replaceable units

Table 6 and Table 7 on page 54 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”

BCM50 Installation and Maintenance Guide