RAD Data comm Normal Operation, Turning off the AMC-101, Troubleshooting Procedures

Chapter 3 - OperationAMC-101Installation & Operation Manual

3.5 Normal Operation

Once powered on, the POWER indicator should light up and the FLT should be turned off. If the FLT indicator blinks, a configuration error exists: the combination of the card types and the selected data rate is illegal.

Each AMC-101 module contains a SIG indicator. If the SIG indicator is turned off; no signal is received by the module. If the SIG is turned on; a signal is received by the module, and if the re-timing option is in use, the PLL is synchronized to the receive signal. If the SIG blinks, a signal is received by the module but the PLL is out of sync.

A special circuitry can be configured to transmit idle signal in case of not receiving any signal from the other side. This option is enabled by the idle jumper (JP-6) and can be used for power measurements in case of absence of "real" data.

The WRAP function can be locally activated at any time and causes the signal received by the module to be transmitted by the same module. If the module features retiming, the looped back signal is retimed and re-clocked.

	3.6 Turning off the AMC-101
	Disconnect the AMC-101 AC cable from the mains outlet.
	3.7 Troubleshooting Procedures
The POWER LED	Check the power cord connection on the back of the unit and at the mains
does not light up	outlet.
	• Verify power availability at the mains outlet.
Data transmission	Ensure that the plugged-in modules are compatible with the protocol used
difficulties	(media, data rate).
	Ensure that the FLT LED is off. (If the LED blinks, a configuration error exists:
	the combination of the module types and the selected data rate is illegal).
	Verify that the SIG LED is on and fixed. If the LED is off, no signal is being
	received by the module. If the LED is blinking, the module PLL is out of
	sync.
	Use the WRAP option to localize the problematic segment.

3-6 Troubleshooting Procedures