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Chapter 3 - Operation AMC-101
Installation & Operation Manual
3-6 Troubleshooting Procedures
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
does not light up
Check the power cord connection on the back of the unit and at the mains
outlet.
• Verify power availability at the mains outlet.
Data transmission
difficulties
Ensure that the plugged-in modules are compatible with the protocol used
(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.