HP 83481A Optical Electrical Module
The Agilent HP 83481A optical/electrical plug-in module incorporates two measurement channels, one optical and one electrical. The electrical channel has two selectable bandwidth settings. In thelower bandwidth modes of 12.4 GHz, oscilloscope noise performance is excellent, while the 20 GHz mode allows greater fidelity for high speed signals. The calibrated,integrated optical channel has over 2.85 GHz bandwidth.
The integrated optical channel reduces mismatch loss variation by eliminating signal distorting cables and connectors associated with the use of external receivers in order to accurately characterize optical waveforms. The optical channel is calibrated to provide both accurate display of the received optical waveform in optical power units and measurement of the signal's average power. In addition, the User Cal feature provides for consistent accuracy at any wavelength between 1000 nm and 1600 nm using a source and power meter.
The Agilent 83481A optical/electrical plug-in module also is a calibrated SONET/SDH reference receiver that is measured to comply to ITU-TS (formerlyCCITT)G.957 and Bellcore GR-253-CORE frequency response requirements for transmitter compliance testing. By either pressing a front-panel button or issuing a GPIB command, a Bessel-Thomson filter(either fourth order or fifth order, depending on the option installed) is inserted into or removed from the measurement channel by a very repeatable Agilent Technologies microwave switch. The switch removes the potential variability and the time wasted by manually inserting and removing the filter when alternating between high-fidelity waveform characterization and SONET/SDH compliance testing.
The electrical measurement channel may be used to perform measurements on tributary electrical signals, to evaluate receiver performance in transceiver testing, for measurement swith Agilent Technologies wide range of external optical receivers, or for general purpose measurements.
The Agilent 83481A optical/electrical plug-in module provides:
- 2.85 GHz,155 Mb/s and 622 Mb/s selectable optical channel
- 12.4 GHz and 20 GHz electrical channel
- Switchable SDH/SONET filtersfor transceiver compliance testing
- 2.5 GHz trigger channel input to the mainframe
Click the PDF Specification for further information