NEC UNIVERGE SL2100, Hardware Manual

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Maintenance
S
ECTION
1 LITHIUM BATTERY REPLACEMENT
1.1 General
The Lithium Battery (CR2032) is installed on the CPU-C1 board in Main Chassis. It provides the
battery-backup of the RAM memory for approximately 36 months. When the battery power becomes
low, the system will display a "Warning Message" to the assigned Display Multiline Telephone as
below.
TUE 18 7:27PM
Low battery!
Figure 4-1 Warning of Low Battery (12TXH/24TXH-A1)
11-10 WED 1:49PM
Low battery!
Menu Dir VM:00 CL:00
Figure 4-2 Warning of Low Battery (12TXH/24TXH-B1)
1.2 Lithium Battery Specification
Before replacing the Lithium battery, make sure which type of Lithium battery is required and prepare
the new Lithium battery. (CR2032)
Hardware Manual 4-1
Maintenance
4