To Install A New Clock/Calendar Battery - Nortel BCM200 Installation And Maintenance Manual

To install a new clock/calendar battery

Warning: There is a danger of explosion if you do not replace the battery correctly.
You must replace the battery with a CR2032, 3v Maxell coin cell battery.
The positive side of the battery must face up and the battery must sit securely in the
battery socket.
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.
1
Remove the old battery. See
2
Ensure you have the positive side of the battery facing up when you position it in the socket.
3 Push down until the battery snaps into the socket.
4
Install the media services card. See
5
Install the WAN card (if applicable). See
6 Partially insert the base function tray into the main unit.
7 Connect the DS30 connectors to the MSC.
8
Position the PCI cover plate on the front of the base function tray so that the base function tray
and cover plate screw holes align.
9 Position the PCI cover plate locking screw in the PCI cover plate. Tighten the PCI cover plate
locking screw until the plate is firmly set in place (see
10 Install the base function tray bezel (see
11 Completely insert the base function tray into the main unit. See
tray" on page 238.
12 Restore the BCM system to operation. For details, refer to
maintenance" on page
Chapter 24 Replacing data cards and processing hardware
"To remove the clock/calendar battery" on page
"To install the media services card (MSC)" on page
"Installing the WAN card" on page
"To install the base function tray bezel" on page
234.
BCM200/400 4.0 Installation and Maintenance Guide
321.
304.
Figure 164).
"To install the base function
"Restarting the system after
323
308.
240).