Zhone IMACS 8000 User Manual page 697

Type must be PWAN before provisioning PW
The WAN TYPE on the PWE screen must be set to PWAN before assigning a PW stream.
Type must be PWAN to change state
Changing the STATE to something other than "-" is not allowed unless the WAN TYPE is set
to PWAN.
UDP port must be unique
The number chosen for the PWE UDP number is not unique. Try another number.
Unit controlled by FEC.
The user card is controlled by forward error correction.
Units in pair must have the same source.
You must configure the Source parameter of User units on a FRAD card in pairs.
Upon activation CPU will reset, continue (y/n)?
A CPU switch or restart has been requested. Confirmation is required.
Voice CPU is not responding.
The voice CPU is not working. Power down the system, then power it up again.
WAN must be active (no loopback) to run BERT test.
You must turn off all WAN loopbacks before starting a BERT test on a WAN port.
WAN must have SLC format.
The WAN port must be configured for slc96.
Reference Guide B-23