Dual trunk e1 router – Black Box LRU4240 User Manual
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Dual Trunk E1 Router User’s Guide
Dual Trunk E1 Router
Send QRW (port, fraction)
Unit is sending QRW code.
Send All 1s (port, fraction)
Unit is sending all ones signal.
Send all 0s (port, fraction)
Unit is sending all zeros signal.
LP UP Remote (port, fraction)
Unit is sending loopdown code to remote site for 15 seconds.
LP DN Remote (port, fraction)
Unit is sending loopup code to remote site for 15 seconds.
No clock
Main clock source has failed.
Lamp Test
Unit is undergoing Lamp Test.
Table D-10 Menu-1 Network Status
Indication
Description
Normal Operation
No abnormal conditions exist.
Loss of Signal
Network signal is missing.
Loss of Frame
Network frame is missing.
AIS Alarm Received
AIS/keep alive.
RAI Alarm Received
Unit has received RAI
Set Code Received
Unit has received set code.
Reset Code Received
Unit has received reset code.
Excessive CRC Errors
Unit has exceeded BPV threshold.
Excessive OOF Errors
Unit has exceeded OOF threshold.
Table D-11 Menu-3A Carrier Reports and 3B User Reports
Event
Default
Unavailable Signal State - In ESF mode, this state is declared at the onset of ten consecutive
SESs.
No
Current Interval Timer - Displays the amount to time in a current interval, 0 - 899 seconds.
0
Errored Seconds (ES) - In ESF framing, a second with one or more ESF frame errors or CRC-
6 errors.
0
Unavailable Seconds (UAS) - In ESF mode, the number of seconds elapsed after 10 consecutive
SES events are received.
0
Severely Errored Seconds (SES) - In ESF mode, a second during which 320 or more CRC-6
violations or OOF events have occurred.
0
Bursty Errored Seconds (BES) - In ESF mode, a second with two CRC-6 errors to 320 CRC-6
errors.
0
Background Block Error (BBE) -
Table D-9 Menu-1 Unit Status (2 of 2)
Indication
Description