Nortel Networks BCM200/400 - Manual (Page 283)

Chapter 23 Replacing or upgrading a power supply 283
BCM200/400 4.0 Installation and Maintenance Guide
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 283
• “Upgrading to a redundant power supply” on page 294
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 284
• “Installing a BCM200 standard power supply” on page 286
• “Removing a BCM400 standard power supply” on page 290
• “Installing a BCM400 standard power supply” on page 292
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.
Figure
134 provides an overview of the process for replacing a standard power supply.
Note: For the BCM400 RFO configuration only, a redundant power supply is included.
Use a redundant fan with the redundant power supply (see
“Installing a BCM400 cooling
fan” on page 334 ).
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.