Title: Hardware Installation Guide.pdf
AB CThe following chart describes the purpose of each LED on the ISC board.LEDPurposeAThis LED blinks rapidly whenever the ISC is powered up and is operating normally.BThis LED is on when upstream communication to host computer is in process.CThis LED is on when downstream communication to reader interfaces or input/ output modules is in process.16.2Replace Memory Backup BatteryThe 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 3V lithium ion battery (Rayovac BR2325 or Wuhan Lixing CR2330) is used for the Memory Backup. This battery should be replaced annually.Caution: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.revision 6 — 91LNL-1000 Intelligent System Controller17Specifications