Jitter and wander options – Atec Acterna-JDSU-ANT-20SE User Manual
Page 13

Jitter and Wander Options
Standards
Jitter generation and jitter/wander analysis are in accordance with:
± Telcordia GR-253, GR-499, GR-1244
± ANSI T1.101, T1.102, T1.105.03,T1.403, T1.404, T1.105.09
± ITU-T G.783, G.823, G.824, G.825, O.171, O.172
± ETSI ETS 300 462-1 to -6, ETS 300 417-1-1, EN 302 084
O.172 Jitter/Wander
up to 155 Mbit/s
BN 3060/91.30
Jitter generator
Fully complies with or exceeds the requirements of ITU-T O.172.
Bit rates
Generates jitter at all bit rates included in the mainframe configuration
up to 155 520 kbit/s.
TX signals . . . . . . . . . . . . . . . . . . all test patterns and frame structures
included in the mainframe configuration
Built-in modulation generator (sinewave) . . . . . . . . . 0.1 Hz to 5 MHz
External modulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 Hz to 5 MHz
Jitter amplitude . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . up to 64 UI
Clock rate/kHz
A1
A2
f1 / Hz
f2 / Hz
f3 / kHz
1 544
0.5
64
0.1
625
80
2 048
1560
200
6 312
940
120
8 448
6250
800
34 368
27 k
3 500
44 736
35 k
4 500
51 840
27 k
3 500
139 264
39 k
5 000
155 520
39 k
5 000
622 080 *
1.0
256
20 k
5 000
* Requires option BN 3060/91.31
Modulator input
75 O, BNC socket
Voltage required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 to 2 Vpp
Error limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . as per O.172
Jitter Analyzer
Jitter measurement at all bit rates included in the mainframe
configuration up to 155 520 kbit/s.
Built-in filters
High-pass filters . . . . . . . . . . . . . . . . 0.1, 2, 4, 10, 20, 40, 100, 200, 400,
500, 700 Hz,
1, 3, 8, 10, 12, 18, 20, 30, 65, 80, 250 kHz
Low-pass filters . . . . . . . . . 40, 60, 100, 400, 800, 1300, 3500, 5000 kHz
Filter characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . as per O.172
Measurement ranges
Peak-peak
Range I/Resolution . . . . . . . . . . . . . . . . . . . . 0 to 1.6 UIpp/1 mUIpp
Range II/Resolution . . . . . . . . . . . . . . . . . . . . 0 to 20 UIpp/10 mUIpp
Range III/Resolution . . . . . . . . . . . . . . . . . 0 to 200 UIpp/100 mUIpp
RMS
Range I/Resolution . . . . . . . . . . . . . . . . . . . . 0 to 0.8 UIpp/1 mUIpp
Range II/Resolution . . . . . . . . . . . . . . . . . . . 0 to 10 UIpp/10 mUIpp
Range III/Resolution . . . . . . . . . . . . . . . . . 0 to 100 UIpp/100 mUIpp
Measurement accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . as per O.172
Demodulator output
75 O, BNC socket
Range I (0 to 1.6 UIpp) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 V/UIpp
Range II (0 to 20 UIpp) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.1 V/UIpp
Range III (0 to 200 UIpp) . . . . . . . . . . . . . . . . . . . . . . . . . . 0.01 V/UIpp
Wander Generator
Fully complies with or exceeds the requirements of ITU-T O.172
Bit rates
Wander generation at all implemented bit rates up to 155 Mbit/s
according to the equipment level of the instrument.
Amplitude range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . up to 200 000 UI
Frequency range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 mHz to 10 Hz
Accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . as per O.172
Resolution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 mHz
Wander Analyzer
Fully complies with or exceeds the requirements of ITU-T O.172
For all bit rates up to 155 Mbit/s according to the equipment level of
the instrument.
Other sampling rates in addition to the 30/s rate are available for
detailed analysis versus time:
Sampling rate ± Low-pass filter ±
Test duration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1/s - 0.1 Hz - 99 days
30/s - 10 Hz - 99 h
60/s - 20 Hz - 99 h
300/s - 100 Hz - 5000 s
Amplitude range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +1 ns to +10
6
s
Measurement accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . as per O.172
Accessory: ªStandard Frequency Sourceº for wander applications, see
end of chapter
O.172 Jitter/Wander
up to 622 Mbit/s
BN 3060/91.31
Jitter Generator
Jitter modulation of STM-4 TX signals.
Built-in modulation generator (sinewave) . . . . . . . . . 0.1 Hz to 5 MHz
External modulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 Hz to 5 MHz
Jitter amplitude . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . up to 256 UI
Jitter modulation of externally-generated
signals in Through mode
Externally-generated signals can be jittered in Through mode when the
D&I option is included.
13
A2
UI
pp
A1
f1
f2
log f
f3