Section 2 Lithium Battery Replacement; General; Lithium Battery Specification; Replacing The Lithium Battery - NEC SL1100 Hardware Manual

SL1100
S 2 LITHIUM BATTERY REPLACEMENT
ECTION

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.

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 Expan-
sion 2 KSU, Expansion 1 KSU and then Main KSU.

2.3 Replacing the Lithium Battery

1. Remove the Sub-Cover at the Main KSU.
4-4
Low battery!

Figure 4-5 Warning of Low Battery

Sub-Cover
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Figure 4-6 Removing the Sub-Cover

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Maintenance