HP 37717C Calibration Manual page 79

General Information
Specifications
Option A1T
Error results: B1, B2, AU-4 path BIP-
8 (B3), AU-4 path FEBE, TU-3 path
BIP-8 (B3), TU-3 path FEBE, TU-12
path FEBE, TU-12 path BIP (V5), bit
errors (PDH payload). Frame (A1A2),
MS FEBE, AU-4 path IEC, TU-2 path
FEBE, TU-2 path BIP (V5).
Error analysis: To ITU-T G.826
(G.821 and M.2100/2110/2120 for
PDH payload).
Pointer results: AU pointer value, AU
NDF seconds, AU missing NDF
seconds, AU +ve adjustment count
seconds, AU -ve adjustment count/
seconds, implied VC-4 offset, TU
pointer value, TU NDF seconds, TU
missing NDF seconds, TU +ve
adjustment count/seconds, TU -ve
adjustment count/seconds.
Alarm indication: LOS, LOF, OOF,
LOP (AU-4, TU-3, TU-12), MS AIS,
MS FERF, path AIS (AU-4), path
FERF (AU-4), TU path AIS (TU-3,
TU-12), TU path FERF (TU-3, TU-12),
pattern sync loss, clock loss and errors
(any type).
LOP (TU-2), K1/K2 change, H4
multiframe sync, TU path AIS (TU-2),
TU path FERF (TU-2).
Alarm seconds: As for alarm
indication, plus power loss, NDF and
missing NDF, and except clock loss.
Frequency measurement: Frequency
displayed in Hz, 1 Hz resolution.
Offset displayed in ppm and Hz.
1-58
Received overhead snapshot:
SOH and POH of a received STM-1
signal. Text message displayed for
signal label (C2 and V5) and sync
status (S1) decoded.
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.
AU-4 pointer location graph:
A graphical display that shows the
variation with time of the pointer
location. Up to four days of pointer
location activity can be monitored.
Implied VC offset: The total positive
and negative pointer movements since
the start of the measurement period are
summed and the implied mean VC
offset calculated from this total.
Overhead BER measurement:
Any RSOH, MSOH or POH (except
A1, A2, H1, H2, Z1, Z2) channel is
selected and a BER measurement is
9
performed using a 2 -1 PRBS inserted
into a 64 kb/s channel. Single errors can
be added to the test pattern. Error
count, error ratio, error free seconds,
% error free seconds and pattern loss
seconds are measured.
Option A3R Results
Error results: Frame (A1A2), B1, B2,
MS REI,
AU-4 path BIP (B3), AU-4 path REI,
AU-4 path IEC, AU-3 path BIP (B3),
AU-3 path REI, AU-3 path IEC,
TU-3 path BIP (B3), TU-3 path REI,