Base Function Tray Maintenance Procedures - Nortel BCM200 Installation And Maintenance Manual

8 Replace all the connectors to the front of the units. The reboot can take several minutes to
complete.

Base function tray maintenance procedures

The base function tray contains the core processing components. To prepare for base function tray
removal, perform a software and hardware shutdown (see
page 233).
Use this procedure only under the following conditions:
• to replace the MSC, modem, memory DIMMs, battery, PEC III, or WAN (if applicable)
• to replace the base function tray. Remove the components from the old base function tray and
install them in the replacement base function tray.
Danger: Electrical shock warning. Disconnect the power cord, telephone cables, and
network cables before opening the computer. Read and follow installation instructions
carefully.
Caution: Use only a Nortel-approved replacement parts. Contact your account
representative for the current list of approved replacement parts.
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.
Use the flowchart shown in
Chapter 20 Preparing hardware for maintenance or upgrades
Figure 106 as a summary guide to replace the base function tray.
BCM200/400 4.0 Installation and Maintenance Guide
"Performing a system shutdown" on
235