HP 37717C, Calibration Manual, Page: 65 / 399

1-44
General Information
Specifications
Range accuracy: Range 1 - 0.01 UI
Range 10 - 0.1 UI
Range 50 - 0.5 UI
Range 80 - 1.0 UI
Range 200 - 2.0 UI
Intrinsic jitter:
2.048 Mb/s - 0.02 UI
8.448 Mb/s - 0.02 UI
34.368 Mb/s - 0.03 UI
139.264 Mb/s - >10 kHz - 0.02 UI<10
kHz - 0.04 UI
STM-1 - >10kHz - 0.03 UI <10 kHz -
0.04
STM-4 - 0.10 UI Values are pk-pk jitter
measured with HP1 filter present.
High frequency inaccuracy: STM-1
Electrical >1.3 MHz
<0.2 UI
±
10%
>0.2 UI
±
20%
Amplitude accuracy:
PDH rates:
±
5%
±
range accuracy
±
intrinsic jitter.
SDH rates:
±
5%
±
range accuracy
±
intrinsic jitter
±
high frequency
inaccuracy
Fixed jitter tolerance masks: 6 pre-
programmed jitter tolerance masks with
pk-pk jitter amplitudes and modulating
frequencies in accordance with ITU-T
Rec. G.823 Table 2, covering low and
high Q systems. The masks can be used
to measure tolerance to jitter amplitude
at spot jitter frequencies or can be
swept in 20% frequency increments.
When generating an SDH signal the
masks available are those specified in
ITU-T Rec. G.958. A choice of type A
or B masks is available at STM-1 and
STM-4.
Automatic jitter tolerance test: The
mask is swept in 20% frequency
increments and at each frequency the
jitter amplitude is increased until errors
(of any type) are detected.
External jitter modulation input:
Frequency range: 2 Hz to 5 MHz.
Voltage response at 10 kHz:
10 UI range: 0.7V
±
0.2V pk-pk/UI.
2 UI range: 3V
±
1V pk-pk/UI.
Maximum input level: 6V peak AC/
DC composite.
Wander generation Options A3K
[A3Q] only:
Data rates: 2.048 Mb/s, 155.52 Mb/s,
622.08 Mb/s.
Wander modulation:
Frequency: 0.000010 Hz to 0.125000
Hz
Frequency accuracy:
±
1%.
Frequency resolution: 1
µ
Hz.
Amplitude range:
2 Mb/s: 0.5 to 80UI in 0.5UI steps.
STM-1: 0.5 3600UI in 0.5UI steps.
STM-4: 0.5 to 14400UI in 0.5UI steps.
Intrinsic jitter: 0.1 UI
Rate inaccuracy:
2.048 Mb/s 1.0 UI
155.52 Mb/s 0.5 UI
622.08 Mb/s 0.5 UI
Amplitude accuracy:
±
5%
±
intrinsic
jitter
±
rate inaccuracy.
Pre-programmed wander tolerance
masks with pk-pk wander
amplitudes.When 2.048 Mb/s is
selected mask is in accordance with
ITU-T Rec. G.823. When155.52 Mb/s
or 622.08 Mb/s is selected mask is in
accordance with ITU-T Rec. G.958.
Wander reference input:
Rate: 2.048 Mb/s
±
100 ppm.
Format: Clock or HDB3 Data.
Impedance: Nominal; 75
Ω