Lucent Technologies CellPipe IAD 4A Hardware Installation Manual page 21

When all the cables are connected, verify the following status light behavior takes
place:
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CellPipe IAD 4A and CellPipe IAD 8T Hardware Installation Guide
The pwr light is on initially and remains on. If not on, make sure the power
supply is properly connected.
The lan lnk light is on if an Ethernet connection is established. If not on,
check to make sure your Ethernet cable is properly connected.
The lan act light blinks during any LAN traffic. Otherwise, it remains off.
The wan lnk light blinks until a connection is established, and then it remains
on.
The voice light is on only when a voice port is offhook.
Checking the activity of CellPipe IAD 8T status lights
CellPipe IAD 8T
11