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Vision Series Installation and Operating Handbook
Chapter 12 Fault Messages
The follow ing table lists all of the modem faults along w ith a description of what the fault
means. It also describes relevant checks the operator might make to try to eliminate the
fault condition. Note that the text show n in the table w ill be displayed in full on the w eb user
interface and in the system log but may appear in an abbreviated format on the front panel
LCD display due to space considerations.
The acronyms used to define the actions taken on each fault occurring are as follows:
Actions: Relays
U: Prompt unit fault relay.
T: Prompt traffic fault relay.
D: Deferred alarm relay.
Actions: Other
CM: Carrier mute.
TF: Tx flow control CTS (Clear To Send) line is switched off.
RF: Rx flow control RR ( Receive Ready) line is sw itched off.
12-1
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