RAD Data comm operation manual Deactivating Local Analog Loopback, RIC-E1 Troubleshooting

Chapter 4 Troubleshooting and Diagnostics RIC-E1Installation and Operation Manual

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 4-1contains 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		1.	No power	Check that both ends of the power cable
	are OFF				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	Check and adjust both ends of the line
				connected	cables.
			3.	Unbalanced BNC connectors	Switch the two BNC connectors.
				are reversed
			4.	The transformer is damaged	Replace RIC-E1.
4-2		Troubleshooting

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