Atec SJ300E User Manual
SDH/SONET Analyzers
SJ300E
Characteristics
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
Generator -
Jitter frequency: 1 Hz to 1/125 of baud rate.
Frequency accuracy: ±20 ppm.
p-p
Jitter amplitude: Up to 22 UI
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. Same
frequency as external clock.
depending on jitter frequency.
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 V
p-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 UI
p-p
depending on the jitter
frequency and receiver baud rate.
Resolution: 0.01 UI.
Amplitude accuracy:
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