RAD Data comm E1 Interface Converter RIC-E1 - Manual (Page 30)

Chapter 4 Troubleshooting and Diagnostics RIC-E1 Installation and Operation Manual
4-2 Troubleshooting
To activate the local analog loopback from the standalone RIC-E1:
1. Open the RIC-E1 case, as described in
Chapter 2 .
2. Set the JP11 jumper to LOC.
The analog loopback is activated and the TST indicator on the front panel
turns on.
To activate the local analog loopback from RIC-E1/R:
• Press the ANA pushbutton on the RIC-E1/R front panel.
Make sure that the PNL SW jumper (JP5) on the RIC-E1/R board is set to EN.
The TST indicator on the front panel turns on.
Deactivating Local Analog Loopback
To deactivate the local analog loopback from the DTE:
• Lower the circuit 141 pins of the DTE interface.
To deactivate the local analog loopback from the standalone RIC-E1:
• Set the RIC-E1 JP11 jumper to DTE.
The TST indicator on the front panel turns off.
To deactivate the local analog loopback from the standalone RIC-E1/R:
• Press the RIC-E1/R ANA pushbutton again to return it to the previous position.
4.2 Troubleshooting
Table 4-1 contains troubleshooting information to help you identify and correct
problems.
Table 4-1. RIC-E1 Troubleshooting
Trouble Symptoms Probable Cause Corrective Measures
All front panel indicators
are OFF 1. No power Check that both ends of the power cable
are properly connected.
2. Blown fuse Disconnect power cable from both ends
and replace the fuse with another fuse of
proper rating.
LOS indicator is ON 1. Receive line fuses are blown Disconnect power cable from both ends
and replace the fuses with new fuses of
proper rating.
2. Line cables are not properly
connected
Check and adjust both ends of the line
cables.
3. Unbalanced BNC connectors
are reversed
Switch the two BNC connectors.
4. The transformer is damaged Replace RIC-E1.
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