HP 37717C Calibration Manual page 74

General Information
Specifications
Range: 99999 UI. If no reference
signal is present "NO REF" is
displayed.
Accuracy: 0.125 UI 0.5% of
reading. Valid up to 1 Hz wander
frequency.
ATM (Option UKN)
Option UKN
provides ATM
generation and measurement at
standard bit rates.
ATM Transmitter:
Physical Interface Bit rates: 2.048
Mb/s, 34.368 Mb/s, 139.264 Mb/s,
155.52 Mb/s and 622.08 Mb/s (not
STM-4c).
Physical Interface: Meets ITU-T
G.703
Frequency offset (2.048 Mb/s, 34.368
Mb/s, 139.264 Mb/s): Up to 100 ppm
Frequency offset (155.52 Mb/s,
622.08 Mb/s): Up to 999 ppm
Connectors: BNC 75
Error add: Bit, Single HEC or Double
3
HEC - 1 in 10 or single error. Single or
Double HEC in Bursts of up to 8 errors.
Alarm generation: Virtual path FERF,
virtual path AIS, virtual path continuity
check, virtual channel FERF, virtual
channel AIS, virtual channel continuity
check
Clock timing Internal: All rates
Recovered (loop timed): 2.048 Mb/s
only.
External MTS: 155.52 Mb/s, 622.08
Mb/s only.
34.368 Mb/s Overhead: As ITU-T
Rec. G.832
Error Monitoring (EM) - correct BIP-8
Trail Trace (TR) - Test: "HP37717C"
padded with spaces and the correct
CRC added.
User - User defined.
Maintenance Adaptation (MA) - 011
hexadecimal.
Network Operator (NR) - All Zeroes
General Communications (GC) - All
Zeroes.
155.52 Mb/s Overhead: As SDH
module Option US1, A3R or A1T.
Frame Formats:
2 Mb/s: As ITU-T Rec. G.804 with or
without CRC4.
34.368 Mb/s, 139.264 Mb/s: As ITU-T
Rec. G.804
155.52 Mb/s: As SDH module Option
US1, A3R or A1T
Cell layer modes: UNI, NNI
Cell layer headers: VPI, VCI, GFC,
PTI, CLP.
Foreground cells:
unbalanced
2.048 Mb/s bandwidth: 100 to 4528
cells/second.
34.368 Mb/s bandwidth: 100 to
80,000 cells/second.
139.264.368 Mb/s bandwidth: 100 to
326,037 cells/second.
155.52 Mb/s bandwidth: 100 to
353,207 cells/second.
Distribution: Periodic, Burst.
Periodic: A single cell is transmitted at
regular intervals determined by the cell
rate.Also allows a single burst of up to
2048 consecutive cells to be added.
Burst: User specified burst of up to
2048 consecutive cells added at
intervals determined by the cell rate.
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