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

Page 13

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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