Telephone System Installation and Maintenance Guide

Chapter 20 Replacing a power supply 171
BCM50 Installation and Maintenance Guide
5 Remove the power supply from the table, rackmount shelf, or wallmount bracket.
6 Proceed to “Connect the new power supply”.
Connect the new power supply
Before you connect the power supply, read the warnings about connecting network lines in
“Wiring warnings” on page 103.
To connect the new power supply
1 Connect the new power supply. Refer to “Connecting the power supply” on page 100.
2 Connect the telephony and data networking lines that you removed in Step 1 of “Removing the
power supply” on page 170.
3 Proceed to “Returning the system to operation”.
Returning the system to operation
Check if the system programming is still intact. If not, use Element Manager to restore the system
programming. For information about restoring system data, refer to the BCM50 Administration
Guide (N0016868).