Nortel Networks BCM200, 400 4.0 manual Base function tray maintenance procedures

Chapter 20 Preparing hardware for maintenance or upgrades 233

8Replace 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 “Performing a system shutdown” on page 231).

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 Figure 105 as a summary guide to replace the base function tray.

BCM200/400 4.0 Installation and Maintenance Guide