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S
ECTION
2 LITHIUM BATTERY REPLACEMENT
2.1 General
The Lithium Battery (CR2032) is installed on the CPU Card in Main KSU. 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 4-5 Warning of Low Battery
2.2 Lithium Battery Specification
Before replacing the Lithium battery, make sure which type of Lithium battery is required and prepare
the new Lithium battery. (CR2032)
NEC recommends that a backup of the customer data is performed before
powering off the system (either PCPro file or CF card backup) in order to
replace the backup battery.
• Risk of explosion if the battery is replaced by an incorrect type.
• Dispose of used batteries as instructed by the manufacturer of the battery.
• If Expansion KSU(s) are installed, turn the power on/off in the order of
Expansion 3 KSU, Expansion 2 KSU, Expansion 1 KSU and then Main
KSU.
SL1000
ISSUE 3.0
4-4
Maintenance
Summary of Contents for SL1000
Page 1: ...Hardware Manual A50 031170 001 GE ISSUE 3 0 November 2012...
Page 12: ...MEMO SL1000 ISSUE 3 0 x Hardware Manual...
Page 16: ...MEMO SL1000 ISSUE 3 0 R 4 Regulatory...
Page 126: ...MEMO SL1000 ISSUE 3 0 3 8 System Start Up...
Page 140: ...MEMO SL1000 ISSUE 3 0 4 14 Maintenance...