Because RFL™ and Hubbell® have a policy of continuous product improvement, we reserve the right to change designs and specifications without notice.
TESTING
Once the RFL VF-5C Module has been configured and installed, it should be tested for proper
operation before it is placed in service. There are two ways you can do the testing:
1. Local testing using T1 or E1 loopback with the system out of service.
2. End-to-end testing, with the system inservice but the channel being tested taken out of service.
Use the following procedure to test the RFL VF-5C:
1. If using T1 or E1 loopback testing, set up the multiplexer loopback following the instructions in
multiplexer operation manual.
1. Test each channel separately. If using end-to-end testing, test each channel first from Site 1 to
Site 2, then reverse the setup and test from Site 2 to Site 1.
3. If addressing is enabled, the address on the receiving end must match the address at the
transmitting end.
4. Connect the output of a TIM set or equivalent to the equipment input jack for the channel being
tested. Insert a 1004 kHz test tone at the TX level selected for that channel referenced to 600
ohms.
NOTE
For the following steps, check the output on the same RFL VF-5C module if you are using
loopback testing, or on the module at the receive end if you are using end-to-end testing.
5. Measure the channel output at the equipment output jack.
The output level should be the RX level selected for that channel referenced to 600
ohms, +
0.5 dB.
6. If signaling is enabled, activate the M-Lead and observe that the corresponding M indicator
LED on the transmit module and the E indicator LED on the receive module both light up.
7. Remove the test equipment and disconnect the loopback if one was used.
The module is now available for operation.
If there is an apparent malfunction, first check that the configuration is appropriate for the transmission
system in use. If using end-to-end testing, check that the transmit and receive configuration is
compatible.
Problems may occur at the common equipment or facility level which affect the operation of this
module. Refer to your multiplexer operation manual for system analysis procedures.
RFL VF-5C RFL Electronics Inc.
October 8, 2012 45 (973) 334-3100
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