Instruction Manual

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 .................. alltest patterns and frame structures
included in the mainframe configuration
Built-in modulation generator (sinewave) ......... 0.1Hzto5MHz
External modulation . . .......................... 0Hzto5MHz
Jitter amplitude ...................................upto64UI
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 ....................................0to2Vpp
Error limits ..................................... asperO.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 . . . ............................ asperO.172
Measurement ranges
Peak-peak
Range I/Resolution . ................... 0to1.6UIpp/1 mUIpp
Range II/Resolution . ...................0to20UIpp/10 mUIpp
Range III/Resolution .................0to200UIpp/100 mUIpp
RMS
Range I/Resolution . ................... 0to0.8UIpp/1 mUIpp
Range II/Resolution . .................. 0to10UIpp/10 mUIpp
Range III/Resolution .................0to100UIpp/100 mUIpp
Measurement accuracy ............................ asperO.172
Demodulator output
75 O, BNC socket
Range I (0 to 1.6 UIpp) .............................. 1V/UIpp
Range II (0 to 20 UIpp) ............................. 0.1V/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 ............................. upto200000UI
Frequency range ..............................10mHz to 10 Hz
Accuracy ........................................ asperO.172
Resolution ........................................... 1mHz
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-0.1Hz-99days
30/s - 10 Hz - 99 h
60/s - 20 Hz - 99 h
300/s - 100 Hz - 5000 s
Amplitude range .............................
+
1nsto
+
10
6
s
Measurement accuracy ............................ asperO.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) ......... 0.1Hzto5MHz
External modulation . . .......................... 0Hzto5MHz
Jitter amplitude ..................................upto256UI
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