Replacing Or Upgrading A Power Supply; Replacing A Standard Power Supply - Nortel BCM200 Installation And Maintenance Manual

Chapter 23

Replacing or upgrading a power supply

The BCM200 uses a standard power supply. The BCM400 and expansion units use either a
standard or redundant power supply.
This chapter describes the following power supply installation and replacement techniques:
• "Replacing a standard power supply" on page 277
• "Upgrading to a redundant power supply" on page 288
Note: For the BCM400 RFO configuration only, a redundant power supply is included.
Use a redundant fan with the redundant power supply (see
fan" on page
Warning: You must remove all of the connections to the BCM system before you power
the system down. Failure to disconnect the 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.

Replacing a standard power supply

This section describes how to remove and install a standard power supply in the main unit and
contains the following procedures:
• "Removing a BCM200 power supply" on page 278
• "Installing a BCM200 standard power supply" on page 280
• "Removing a BCM400 standard power supply" on page 284
• "Installing a BCM400 standard power supply" on page 286
If the main unit or expansion unit has a standard power supply that fails, then all activity on the
system stops. This procedure describes how to replace a failed standard power supply unit.
134 provides an overview of the process for replacing a standard power supply.
Chapter 23 Replacing or upgrading a power supply
328).
"Installing a BCM400 cooling
BCM200/400 4.0 Installation and Maintenance Guide
277
Figure