Lanex TM-77, Руководство по эксплуатации

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4
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E1/G.703 P
LESIOCHRONOUS
M
ULTIPLEXER
O
PERATING
M
ANUAL
IOA77-1F 13 May 2007
3.7 Monitored qualitative parameters of E2 optical interface
TM-77 and MD-77 devices are provided with a function of qualitative parameter monitoring.
The devices automatically monitor the linear interface signal parameters and detect, count
and signalize the following conditions and parameters:
Indicators:
•
LOOS - loss of optical signal
•
LDF - laser diode failure
•
LOF - loss of frame synchronization
•
10E-3 - error rate 10
-3
exceeded
•
10E-6 - error rate 10
-6
exceeded
•
RAL - remote device alarm indicating a remote device connection failure
(between a local and remote device)
•
ES15 - exceeding a 15-minute errored second counter threshold
•
SES15 - exceeding a 15-minute severely errored second counter threshold
•
ES24 - exceeding a 24-hour errored second counter threshold
•
SES24 - exceeding a 24-hour severely errored second counter threshold
•
SESFE15 - exceeding a 15-minute severely errored second far end counter
threshold
•
SESFE24 - exceeding a 24-hour severely errored second far end counter threshold
Counters:
•
ES15 - 15-minute errored second counter
•
SES15 - 15-minute severely errored second counter
•
ES24 - 24-hour errored second counter
•
SES24 - 24-hour severely errored second counter
•
SESFE15 - 15-minute severely errored second far end counter
•
SESFE24 - 24-hour severely errored second far end counter
•
BBE15 - 15-minute background block error counter
•
BBE24 - 24-hour background block error counter
•
UAS15 - 15-minute unavailability second counter
•
UAS24 - 24-hour unavailability second counter