HP 37717C, Calibration Manual, Page: 81 / 399

1-60
General Information
Specifications
Frequency measurement: Frequency
displayed in Hz, 1 Hz resolution.
Offset displayed in ppm and Hz.
Received overhead snapshot:
SOH can be set in binary or HEX.
SOH and POH of a received STM-1
signal.
SOH and POH of a received STM-0
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.
Pointer location graph: A graphical
display that shows the variation with
time of the AU-n and TU-n 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
performed using a 29 - 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 120 Results (for SDH
results see A3R)
Error results STS-3c SPE:
Frame (A1A2), B1, B2, REI-L, CV-P
(B3), STS-3c SPE REI-L, STS-3c SPE
IEC-P. STS-1 SPE CV-P (B3), STS-1
SPE REI-V, STS-1 SPE IEC-P. VT6
CV-V (V5), VT6 REI-V, VT2 CV-V
(V5),VT2 REI-V, VT1.5 CV-V
(V5),VT1.5 REI-V, bit errors (bulk
filled, DSn/PDH payload).
DS1/DS3 error results: Frame error,
CRC6 error (DS1 ESF), P-bit parity
(DS3), C-bit Parity (DS3 CBP
framing), FEBE (DS3 CBP framing).
Bit errors (DS1 and DS3).
Error analysis: To ITU-T G.826
(G.821 and M.2100/M.2101/2110/2120
for DSn/PDH payload).
Alarm indication: LOS, LOF, SEF,
AIS-L, RDI-L, K1K2 change STS-3c
SPE path AIS, STS-3c SPE RDI-P,
STS-3c SPE LOP, STS-3c SPE pointer
adj STS-1 SPE path AIS, STS-1 SPE
RDI-P, STS-1 SPE LOP, STS-1 SPE
pointer adj VT6 path AIS, VT6 RDI-V,
VT6 LOP, VT6 pointer adj VT2 path
AIS, VT2 RDI-V, VT2 LOP, VT2
pointer adj VT1.5 path AIS, VT1.5
RDI-V, VT1.5 LOP, VT1.5 pointer adj
H4 multiframe sync loss, pattern sync
loss, clock loss, power loss and errors
(any type).
DS1/DS3 alarm indication: AIS, frame
loss, RDI.
Alarm seconds: As for alarm
indication, plus NDF, missing NDF and
except clock loss.