Justification As Per T1.107 Or T1.107A; Pdh Tributary Offset; Error Insertion (Anomalies; Alarm Generation (Defects - Wavetek ANT-20 Operating Manual

M13 MUX/DEMUX
1.3

Justification as per T1.107 or T1.107a

The bit rates in the upper and subordinate systems are in a fixed relationship to each other.
Justification is at a nominal rate (offset of upper and subordinate systems is identical).
Exception: Insertion of external signals.
M13
Upper system
DS2
DS3
Table S-2
C parity
Upper system
DS2
DS3
Table S-3
1.3.1

PDH tributary offset

Static offset for the PDH tributary bit rates during insertion into the SONET-SPE container.
Offset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±100 ppm
Step width . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 ppm
The offset is an average value. The actual offset at any given time may be above or below this
value.
1.4

Error insertion (anomalies)

The error types are described in the "Specifications" for the mainframe instrument.
1.5

Alarm generation (defects)

The alarm types are described in the "Specifications" for the mainframe instrument.
The insertion of alarms (defects) or errors (anomalies) are mutually exclusive. The action
selected first is active.
S-2
Justification ratio
0.335
0.39
M13 justification
Justification ratio
0.073
1
C parity justification
Justification rate in kbit/s
1.8
3.544
Justification rate in kbit/s
0.393
9.398
for all bit rates, relative to SONET-SPE container
ANT-20/ANT-20E
Specifications