Nortel Networks BCM200/400 - Manual (Page 307)

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BCM200/400 4.0 Installation and Maintenance Guide
Chapter 24
Replacing data cards and processing hardware
This section describes how to replace data cards and processing hardware components and
provides the following topics:
• “Replacing cards” on page 307
• “Replacing the processor expansion card (PEC)” on page 319
• “Replacing memory” on page 323
• “Replacing the clock/calendar battery” on page 326
The following are field replaceable units (FRUs) for the BCM200 and BCM400 systems:
• Base function tray
• Cards (WAN, MSC, modem)
• Memory
• PECs
• Main card CMOS battery
Replacing cards
Use the procedures in this section to perform the following:
• “To remove the WAN card” on page 309
• “To install a replacement WAN card” on page 311
• “To remove the media services card (MSC)” on page 312
• “To install the media services card (MSC)” on page 314
• “To remove the modem card” on page 315
• “To install a modem card” on page 317
• “To remove the processor expansion card (PEC)” on page 321
• “To install a PEC” on page 323
Warning: You must remove all of the connections to the BCM system before you power
the system down. Failure to disconnect lines before you power down the system can cause
damage to the system.
Warning: Protect the hardware components against damage from electrostatic discharge.
Always wear a grounded wrist strap before you handle components. Always place the
components in a static-free container.