RAD Data comm AMC-101 - Manual (Page 63)

Chapter 3 - Operation AMC-101 Installation & Operation Manual
3-4 Turning on the AMC-101
Example:
For the RED ALARM the common input (COM) pin is 9. If there is no power
failure, it connects to pin 4 (OK). If there is a failure, pin 9 connects to pin 5
(FAIL).
3.4 Turning on the AMC-101
Connect the AC cable of AMC-101 to the mains outlet. The POWER
indicator on the front panel should light up.