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LNL-500 Intelligent System Controller
11
Maintenance
Refer to
Firmware Updates
firmware.
11.1
Verification
The ISC board contains three Status LEDs (LED A, LED B, LED C) that can be used to verify correct
installation after power up.
The following chart describes the purpose of each LED on the ISC board.
LED
Purpose
A
This LED blinks rapidly whenever the ISC is powered up and is operating normally.
B
This LED is on when upstream communication to host computer is in process.
C
This LED is on when downstream communication to reader interfaces or input/
output modules is in process.
11.2
Replace Memory Backup Battery
The ISC contains a Memory Backup battery that is used to backup configuration data and event buffer data
in the event of a power failure.
A 3 V lithium ion battery (Rayovac BR2325 or Wuhan Lixing CR2330) is used for the Memory Backup.
This battery should be replaced annually.
Caution:
72 —
revision 7
in the Hardware Installation Guidelines section for instructions for downloading
There is a danger of explosion if the battery is incorrectly replaced. Replace only
with the same or equivalent type recommended by the manufacturer. Dispose of
used batteries in accordance with the manufacturer's instructions.
A
B
C
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