|
LED |
Action |
State |
|
Heartbeat, blue |
LED blinks at 1/2 sec rate. |
System is operational. |
|
LED is solid on or off. |
System is powered off or is not operational. |
|
|
Reader, yellow |
LED is blinking rapidly. |
LED is off. Card data is executing. |
|
LED is off. |
No card data is being received . |