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MODEL T735
DC-COUPLED
OPTICAL-TO-ELECTRICAL CONVERTER
features
T735 optical-to-electrical converter
  • Converts fiberoptic input to electrical logic-level outputs
  • Dual differential RS422/485 or LVDS outputs on DSUB-9.
  • Dual complimentary TTL outputs on SMB jacks.
  • Logic and monitor paths are DC coupled.
  • Compact, rugged extruded package allows the O/E to be located wherever most convenient, including embedded applications.
  • Accepts optical inputs from Highland E/O converters or compatible sources. T735-1 & T735-11 uses commonly available 62/125-m, 850-nm, ST-connectorized multimode fiber with user-adjustable optical threshold level. The T735-3, T735-5, T735-13 & T735-15 versions are suited for use with singlemode or multimode fiber at 1310 and 1550 nm.
  • On-board analog O/E converter provides fast analog electrical output for monitoring fiberoptic link quality.
Compatible with Highland optical transmitter products:
  • J720 Electrical/Optical Converter
  • J724 Electrical/Optical Converter
  • V880 System Timing Module,
  • V720 Electrical/Optical Converter VME Module,
  • V951-6 Optical-Output VME Delay Generator

Specifications: T735 Optical-Electrical Converter
FUNCTION Logic-level DC-copupled optical-to-electrical converter
PACKAGING 4.0 x 4.75 x 1.25 inches extruded aluminum enclosure.
OPTICAL INPUTS T735-1, T735-11 ST-connectorized optical 850 nm nom. wavelength
T735-3, T735-13 ST-connectorized optical 1310 nm nom.
T735-5, T735-15 ST-connectorized optical 1550 nm nom.
Optical Threshold adjustable from 100 mW to 800 mW.
Factory threshold setting 300 mW.
ANALOG O/E OUTPUT All models feature an internal O/E converter that generates +1 volt per mW nom. optical input into 50-ohm load.
Source impedance 50 ohms
Bandwidth 250 MHz nom.
DC-coupled SMB jack connector.
LOGIC OUTPUTS T735-1, T735-3, T735-5: Dual RS422/485 differential and dual complimentary TTL
T735-11, T735-13, T735-15: Dual LVDS differential and dual complimentary TTL.
RS422/485 and LVDS outputs are on a female D9 connector.
TTL outputs are +5 volts, 50 ohm impedance on SMB connectors.
Outputs are logic true when optical input receives light.
CONNECTOR PINOUT One female D9: logic outputs and +12 volt power
Pin 1 Data A+
Pin 2 Data A-
Pin 3 Ground
Pin 4 Data B+
Pin 5 Data B-
Pin 6 Ground
Pin 7 Alternate +12 volts power in
Pin 8 Ground
Pin 9 Ground
One 2.1 x 5.0 mm coaxial power connector, alternate +12 volt power
PROPAGATION DELAY 25 ns max
RISE/FALL TIME RS422/485 versions: 10ns nom, 10% - 90% (15pF, 100-Ohm load)"
"LVDS versions: 500ps nom, 10% - 90% (10pF, 100-Ohm load)"
"TTL outputs: 600ps nom, 10% - 90% (50-Ohm load)
REPETITION RATE RS422/485 versions: DC - 10MHz (0 – 20Mb/s data rate)
LVDS versions: DC - 100MHz (0 – 200Mb/s data rate)
COUPLING Digital: DC
JITTER Optical Input to RS422/485 versions: Below 40ps RMS.
Optical input to LVDS versions: Below 20ps RMS.
Optical input to TTL outputs: Below 12ps RMS.
Analog O/E Output: Below 12ps RMS.
INDICATORS Front and rear panel green Power LEDs blue Trigger LEDs.
Trigger LED intensity indicates trigger status: Dim for optical input above DC threshold, bright for optical trigger edge transitions above threshold.
POWER +12 Volts at 500 mA max.
2.1 x 5 mm connector. Optional high retention-force MMCX connector available.
J12 Universal Wall-Plug Adapter recommended.
ENVIRONMENT 0 to 70 degrees C, operating.
0 to 95% humidity, non-condensing.
COMPLIANCE OEM product has no UL/FCC/CE compliance requirements.
Designed to meet UL/FCC/CE requirements.
Power adapter when furnished is UL/CE certified.
ACCESSORIES J12 12 volt wall-plug power supply, USA plug.
J14 International plug adapter Kit.
J53 SMB-BNC Cable (36-in length)
J732 Mounting flange.
J720 Electrical-to-Optical converter
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