User's Manual
A7817A
5
1.4 LED Functions
The following chart describes the function of the LED’s on the circuit boards.
Interface Module
LED Color Function Normal
Condition
Error
Condition
LED1 Yellow Indicates a Reader is
offline
Off Solid
LED2 Red Indicates communication
errors between a Reader
and Interface Module
Off Flashing
Rapidly
LED3 Green Indicates successful
communication between
the Readers and the
Interface Module
Flashing Rapidly Off
LED4 Green Indicates the 9V
regulator on the PCB is
functioning
On Off
LED5 Green Indicates the 5V
regulator on the PCB is
functioning
On Off
LED6 Green Indicates the tamper
relay is energized
On Off
Reader
LED Color Function Normal
Condition
Error
Condition
LED5 Red Indicates valid proximity
card read.
Flash on valid
proximity card
read
N/A
LED6 Green Indicates valid proximity
card read.
Flash on valid
proximity card
read
N/A
Auxiliary Relay Board
LED Color Function Normal
Condition
Error
Condition
LED1-16 Green Indicates the Aux Relay
is Energized
On = Relay
energized
Off = Relay de-
energized
N/A