B&B Electronics 857-18400 - Manual User Manual

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Troubleshooting

• All iMcV-E1-Mux/4 units are shipped configured as Host units via DIP

Switch #1 = OFF. The Remote unit should be set to DIP Switch #1 = ON.
Be sure to confirm that the iMcV-E1-Mux/4 card is set correctly when used.

• The fiber transport is independent of all other ports and should be

established first. If this is not possible, a physical fiber loopback can be used
for fiber port verification. A fiber loopback will cause all connected ports to
loop back their respected data.

• If the fiber is not connected, all E1 ports will send the all-ones, AIS signal.

This can be physically looped back to verify E1 port operation.