Lanex TM-77, Руководство по эксплуатации

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E1/G.703 P
LESIOCHRONOUS
M
ULTIPLEXER
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PERATING
M
ANUAL
IOA77-1F 12 May 2007
3.6 Monitored qualitative parameters of G.703 E1 interface
TM-77 and MD-77 devices are provided with a function of qualitative parameter monitoring.
The devices automatically monitor the interface signal parameters and detect, count and signalize
the following conditions and parameters:
Indicators:
•
LOES - loss of electrical signal
•
VIOL - HDB3 code violation on G.703 E1 optical interface
•
AISL - AIS signal detection on G.703 E1 interface
•
AISR - AIS signal detection in E1 flux demultiplexed from E2 collective
channel.
•
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
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
•
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