Title: Hardware Installation Guide.pdf
This applies to Ports 2 and 3.revision 6 — 71LNL-500 Intelligent System Controller11MaintenanceRefer to Firmware Updates in the Hardware Installation Guidelines section for instructions for downloading firmware.11.1VerificationThe ISC board contains three Status LEDs (LED A, LED B, LED C) that can be used to verify correct installation after power up.ABCThe 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.11.2Replace 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.