interface connector type.
3. Voice/fax ribbon cable
1. Reconnect the voice/fax ribbon cable
not connected.
between the voicefax and aggregate
board. Refer to the
installation
procedures in Chapter 4.
2. Call Tech Support for assistance,
refer to Chapter 8.
4. MV2 Board failure
1. Perform the voice/fax loopback test
(test 12), refer to voice/fax channel
testing procedures in this chapter.
2. Call Tech Support for assistance,
refer to Chapter 8.
A voice/fax channel
1. Voice/fax channel
1. Verify that the voice/fax channel is
cannot communicate
configuration problem.
configured for the correct node and
with the remote site
channel destinaton and composite
link. Use the
VL
command to view
the voice/fax channel parameters,
refer to Chapter 5.
Table 7-2. Voice/Fax Troubleshooting Guide (Continued)
Condition
Possible Cause
Corrective Action
A voice/fax channel
2. Wrong type of telephone
1. Ensure that the telephone cord
cannot communicate
cord.
connected to the voice/fax channel is
with the remote site
an RJ11 for
the FXO and/or FXS
(Continued)
connector(s) or E&M cable for the
E&M 1-5 connection.
No voice/fax
1. Frame ground not
1. Attach PBX ground to MultiMux frame
communication
connected to PBX
ground screw.
E&M to E&M
2. Voice/fax configuration
1. Verify that voice/fax channel is
problem.
configured properly, (E&M, wink or
dial tone, 2 or 4 wire, E&M type).
3. Incorrect E&M cabling.
1. Verify connection of E&M cable to
PBX. See Appendix D as well as
PBX documentation.
2. Verify that XSG LED lights when PBX
asserts the M lead and that RSG
LED lights when MultiMux asserts
the E lead.
Voice sounds broken
1. Excessive errors on
1. Examine composite statistics for up
or grabled at times
composite link.
errors.
2. Perform local and remote loop back
tests to determine failing unit or bad
communication line.
3. Call phone company and
communication line.
4. Call Tech Support for assistance,
refer to Chapter 8.
