Applications:
- Measure Jitter and Wander Generated and Tolerated by
SDH/SONET Equipment and Clock-recovery ICs
- Measure Jitter and Wander Transfer of SDH/SONET
Equipment
- Measure or Monitor Jitter and Wander at Line or
Synchronization Interfaces
- Generate and Analyze Line and Synchronization Phase
Transients
Features:
- Generates and Measures Jitter on SDH/SONET Optical
Inputs, up to 622 Mb/s
- Measures Jitter Generation, Transfer and Tolerance
- Stores and Executes Test Sequences for Jitter
Tolerance and Transfer Testing
- Detects and Records Jitter Hits
- Generates and Measures Wander on 1.544 Mb/s and 2.048 MHz
Synchronization Signals
- Generates and Measures Jitter Up to 622 Mb/s
- Wander Option (Opt. 06) Includes PC Software for
Uploading, Calculating and Analyzing Wander Data
- Data Correlation Method Used to Measure Jitter
Transfer Provides Superior Accuracy
- Measures and Generates Wander on SDH/SONET Lines
- Tests Conformance to all ANSI, Bellcore and ITU-T
Timing Standards CCITT G.958, CCITT G.703, ITU-T G.813 July 95,
Bellcore GR-253-CORE (TR-NWT-000253), ANSI T1.101 and ANSI T1.120
- RS-232 and GPIB Interfaces for Remote Operation
- Real Time Wander Analysis and Display
- Adapter Available for STSX-1 and STSX-3 (STM-1e)
Analysis
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SDH / SONET Jitter Analyzer
Specifications:
Transmit and Receive Line Rates:
- STS-1 - 51.84 Mb/s.
- STS-3/STM-1e - 155.52 Mb/s.
- OC-1 - 51.84 Mb/s.
- OC-3/STM-1 - 155.52 Mb/s.
- OC-12/STM-12 - 622.08 Mb/s.
Pattern Generation/Measurement:
- Generator - Internal 27 PRBS or external
"through data."
- Receiver - A PRBS signal of pattern length 27 or a
SDH/SONET formatted signal with the payload portion consisting of all
zeros or all ones.
Jitter Generation:
- Jitter frequency: 1 Hz to 1/125 of baud rate
- Frequency accuracy: ±20 ppm
- Jitter amplitude: Up to 22 UIp-p depending on jitter
frequency
- Resolution: 0.01 UI
- Resolution accuracy: ±1%, ±0.01 UI
Transmitter Outputs:
- Clock Out:
- Frequency: 51.84, 155.52 or 622.08 MHz ±20 ppm
- Level: ECL nominal levels
- Impedance: 50 Ohm to -2 V terminated
- Connector: BNC (internal) with external CLOCK
OUT.
- Data Out
- Baud rate: Equals frequency of CLOCK OUT, NRZ
- Impedance: 50 Ohm to 2 V terminated
- Connector: BNC
- Optical Out
- Baud rate: Equals frequency of CLOCK OUT
- Connector: FC/PC
- Mean output power (EOL): -9 dBm ±3 dBm
- Center wavelength: 1305 nm ±35 nm
- Spectral width (at -3 dB): 5 nm maximum
- Ref Clock Out
- Output: Same as CLOCK out without added jitter
- Amplitude: 0.4 to 1.2 Vp-p into 50 Ohm
- Impedance: 50 Ohm AC-coupled, to ground
- Connector: BNC
Transmitter Inputs
- Clock In
- Frequency: 51.84, 155.52 or 622.08 MHz ±100 ppm
- Level: ECL nominal levels
- Impedance: 50 Ohm or AC-coupled
- Connector: BNC
- Thru Data In
- Level: ECL nominal levels
- Impedance: 50 Ohm to -2 V terminated,
NRZ
- Connector: BNC.
- External Modulation In
- Impedance: 50 Ohm terminated to ground
- Connector: BNC connector
- Sensitivity: 0.1 V/UI
- Accuracy: ±5%
- Amplitude limits: ±0.8 V maximum
- Rate-of-change limits:
- 52 MHz: ±0.135 V/µs.
- 155 MHz: ±0.405 V/µs.
- 622 MHz: ± 1.62 V/µs.
Receiver Peak-to-Peak Jitter
- Wide Mode
- Jitter amplitude: Up to 16 UIp-p depending on the
jitter frequency and receiver baud rate
- Resolution: 0.01 UI
- Amplitude accuracy:
- 52 MHz: ±1%, ±0.01 UI
- 155 MHz: ±1%, ±0.02 UI
- 622 MHz: ±1%, ±0.03 UI
- Fine Mode
- Frequency response: First-order high-pass filter
with cutoff frequencies that depend on receiver baud rate as
follows:
- 52 Mb/s: 14 Hz + 3 Hz.
- 155 Mb/s: 30 Hz + 10 Hz.
- 622 Mb/s: 120 Hz + 35 Hz.
- Jitter amplitude: Up to 0.6 UIp-p depending on
the jitter frequency and receiver baud rate.
- Resolution: 0.001 UI.
- Amplitude Accuracy:
- 52 MHz: ±3%, ±0.002 UI
- 155 MHz: ±3%, ±0.003 UI
- 622 MHz: ±5%, ±0.009 UI
Transfer Functions
- Range - +3 to -50 dB
- Resolution - 0.01 dB
- Note: The maximum jitter amplitude received cannot
exceed the maximum receiver input range.
Receiver RMS Jitter
- Wide Mode
- Frequency response: First-order high-pass filter
at the greater of 12 kHz and the selected high-pass filter.
Third-order, maximally flat, low-pass filter at 1/125 of the
receiver baud rate.
- Jitter range: Measures RMS value of jitter that
meets the wide mode peak-to-peak jitter tolerance.
- Resolution: 0.01 UI
- Amplitude accuracy:
- 52 MHz: ±3%, ±0.01 UIrms
- 155 MHz: ±3%, ±0.01 UIrms
- 622 MHz: ±3%, ±0.02 UIrms
- Fine Mode
- Jitter range: Measures RMS value of jitter that
meets the peak-to-peak requirements
- Resolution: 0.001 UIrms
- Amplitude accuracy:
- 52 MHz: ±3%, ±0.001 UIrms
- 155 MHz: ±3%, ±0.002 UIrms
- 622 MHz: ±5%, ±0.003 UIrms
- Window range: 1 to 99 seconds or infinity
- Resolution: 1 second
- Selectable high-pass filters:
- 52 Mb/s: 10 Hz, 100 Hz or 20 kHz
- 155 Mb/s: 10 Hz, 500 Hz or 65 kHz
- 622 Mb/s: 10 Hz, 1000 Hz or 250 kHz
- Threshold range: 0.000 to 16 UIp-p
- Resolution: 0.001 UIp-p
Receiver Inputs
- Clock In
- Rate: 51.84, 155.52 or 622.08 Mb/s ±20 ppm
- Level: ECL nominal levels
- Impedance: 50 Ohm terminated to -2 V or
AC-coupled
- Connector: BNC
- Data In
- Rate: 51.84, 155.52 or 622.08 Mb/s ±20 ppm
- Level: ECL nominal levels
- Impedance: 50 Ohm terminated to -2 V,
NRZ
- Connector: BNC
- Optical In
- Rate: 51.84, 155.52 or 622.08 Mb/s ±20 ppm
- Connector: FC/PC
- Power: -22 to -5 dBm
- Wavelength: 1200 to 1600 nm
- Laser Safety - Class 1 laser product.
- Ref Clock In
- DS1: 1.544 Mb/s AMI, framed all 1s
- Framing: ESF/SF
- E1: 2.048 Mb/s HDB3, framed all 1s
- 2 MHz: 2.048 MHz square wave
- Connector: WECO 310 (100 Ohm balanced), BNC
(75 Ohm unbalanced).
Receiver Outputs
- Ref Clock Out
- Level: 0.4 to 1.2 Vp-p, AC-coupled
- Impedance: 50 Ohm to ground
- Connector: BNC
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