M13 MUX/DEMUX
2
Receiver section
2.1
Frame systems
Frames which can be evaluated by the M13 MUX/DEMUX chain (Option BN 3035/90.32):
Level
DS1
DS2
DS3
Table S-4
One channel is selected as test channel from the 28 DS1 signals.
The DS2 level cannot be evaluated.
2.2
Error measurements (anomalies)
The error measurements are described in the "Specifications" for the mainframe instrument.
The frame alignment signals in all hierarchy stages of the selected path are checked
simultaneously.
2.3
Alarm detection (defects)
The detected alarms are described in the "Specifications" for the mainframe instrument. The
RDI alarms (yellow) in all hierarchy stages of the selected path are checked simultaneously.
2.4
Offset measurements
All offsets in the hierarchy stages of the selected path are measured and displayed
simultaneously.
Display in ppm
S-4
Bit rate in kbit/s
Frames conforming to
1544
T1.107
1544
T1.107
6312
T1.107
44736
T1.107
44736
T1.107a
Frame systems for individual system bit rates
ANT-20/ANT-20E
Notes
SF (D4)
ESF (T1.107)
-
M13
C parity
Specifications
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