Because RFL™ and Hubbell® have a policy of continuous product improvement, we reserve the right to change designs and specifications without notice.
RFL VF-8A RFL Electronics Inc.
August 6, 2010 26 (973)
334-3100
17. Place the local phone on-hook. Using the local VF-8A extension, dial the same “unique” ID of
the remote VF-8A extension in step 14.
18. Answer the ringing phone and verify that the ringing stops and the voice quality is acceptable.
The amber RING LED (DS1) on the front of the VF-8A will be OFF. The BUSY
LEDs (DS2) at all VF-8A extensions will be ON.
19. If there is a problem with the audio signal at either end, the system may not be properly
configured for the signal levels being applied. Low levels may be due to attenuation at either
end of the circuit, i.e. long wire runs. Clipping (distortion of waveform) may be due to
excessive gain at either end of the circuit. Refer to Step 14 on page 10 for additional
information.
20. Repeat steps 14 thru 19 for each remote VF-8A.
21. Repeat steps 9 thru 20 until each VF-8A was tested as the local extension.
22. Change the settings on one or all of the modules, if necessary, to suit the desired circuit
configuration. The circuit may now be placed in service.
TROUBLESHOOTING
If there is an apparent malfunction, first check that the configuration is appropriate for the transmission
system in use, and that the transmit and receive configurations are identical.
Problems may occur at the common equipment or facility level that may affect the operation of this
module. Refer to the “Maintenance” section in your multiplexer manual for system analysis
procedures.
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