HP 37718A Installation And Verification Manual page 46

General Information
Specifications
DSn payload alarm indication:
AIS, pattern loss, frame loss,
multiframe loss, remote alarm, remote
multiframe alarm and errors (any type).
DSn payload alarm seconds:
Power loss, LOS, LOF 140 Mb/s, LOF
34 Mb/s, LOF 8Mb/s, LOF 2Mb/s, DS1
OOF, DS3 OOF, AIS, pattern loss,
RAI/FERF, multiframe loss, remote
multiframe alarm, DS3 idle, excess
zeros, DS3 frame mismatch.
SDH Alarm Scan: Automatically scans
the SDH network hierarchy for alarms
and BIP errors or alarms only with a
graphical display of the network
hierarchy's status including the
indication of unequipped channels.
Alarms: LOP-P, AIS-P, RDI-P, H4
LOM, LOP-V, AIS-V, RDI-V.
BIP errors: STS payloads - CV-P
VT1.5 payloads -CV-P and CV-V and
V5 BIP-2.
User selectable BIP error threshold -
-3 -6
Off, > 0, > 10 , > 10 .
Protection switch times:
Service disruption test measures error
burst length for measurement of
protection switch times†.
Accuracy: < 50 ms.
Results: Longest burst length, shortest
burst length, last burst length.
Resolution: 1 ms.
Pointer results: STS pointer value, STS
NDF seconds, STS missing NDF
seconds, STS +ve adjustment count/
seconds, STS -ve adjustment count/
seconds, VT pointer value, VT NDF
seconds, VT missing NDF seconds, VT
+ve adjustment count/seconds, VT -ve
adjustment count/seconds, Implied
offset.
1-36
Pointer location graph: A graphical
display that shows the variation with
time of the STS-n and VT-1.5 pointer
location. Up to four days of pointer
location activity can be monitored.
Implied STS offset: The total positive
and negative pointer movements since
the start of the measurement period are
summed and the implied mean STS
offset calculated from this total.
Overhead sequence capture:
Any one overhead channel is selected.
After a manual or programmed trigger,
the captured byte values are displayed
together with the number of
consecutive frames containing the
value.
RSOH:
6-byte channel A1A2
3-byte channel D1 to D3
Single byte channels: J0, Z0, E1, F1,
A1A2 boundary, row2 column2, row2
col3, row3 col2, row3 col3.
MSOH:
9-byte channel D4 to D12
2-byte channels K1K2 andH1H2.
Single byte channels: S1, M1, M0†,
Z1†, Z2†, E2.
† Z1 and Z2 are not present, and M0
replaces M1, in STS-1 mode.
High order POH :
Single byte channels: J1, C2, G1, F2,
H4, Z3, Z4, Z5.
Overhead BER measurement:
SOH: J0, E1, F1, D1, D2, D3.
LOH: K1, K2, D4, D5, D6, D7, D8, D9,
D10, D11, D12, S1, M1, E2.