Replace Memory Backup Battery - Lenel OnGuard Hardware Installation Manual

LNL-3300 Intelligent System Controller
Run time:
LED Description
SPD Onboard Ethernet speed: off = 10 Mb/S, ON = 100 Mb/S
ACT Off = no onboard Ethernet activity, ON = Ethernet activity (yellow LED)
LNK Off = no link, ON = good link (green LED)
When the controller is reading the database, LEDs 1-4 will simultaneously flash once every two seconds.
When the controller is saving the card database, LEDs 1-4 will simultaneously flash in a progressively faster
pattern until completion. The final pattern may be so fast that it is hard to distinguish from constant on.
Saving large databases can take several seconds.
The LED patterns used for Heartbeat, Host communication, and downstream communication will be
suspended during the save/restore and will return to normal once the save/restore is complete.
34.2

Replace Memory Backup Battery

The ISC contains a memory backup battery that is used to back up event and transaction data in the event of
a power failure.
A 3V lithium ion battery (Rayovac BR2325 or Wuhan Lixing CR2330) is used for the memory backup. This
battery should be replaced annually.
Caution:
182 —
revision 7
There is a danger of explosion if 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.