T735 compact DC-coupled optical-to-RS-422/RS-485/LVDS 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
- On-board analog O/E converter provides fast analog electrical output for monitoring fiberoptic link quality
Request a Quote
The T735 accepts optical inputs from Highland Electrical-to-Optical converters or compatible sources. The T735-1 and T735-11 use commonly available 62/125 meter, 850 nanometer, ST-connectorized multimode fiber with user-adjustable optical threshold level. The T735-3, T735-5, T735-13, and T735-15 versions are suited for use with singlemode or multimode fiber at 1310 and 1550 nanometers.
| FUNCTION | Logic-level DC coupled optical-electrical converter |
| INPUT | T735-1, T735-11 ST or FC connectorized 850 nm nominal optical wavelength T735-3, T735-13, T735-23 ST or FC connectorized 1310 nm, nominal optical wavelength T735-5, T735-15 ST or FC connectorized 1550 nm, nominal optical wavelength |
| INPUT THRESHOLD | Optical: 100 µW to 800 µW (100 µW to 2.5 mW for the T735-23) Factory threshold setting 300 µW |
| PROPAGATION DELAY | 25 ns, maximum |
| MONITOR OUTPUT | Optical monitor scaling: 1 V/mW into 50Ω Monitor source impedance: 50Ω |
| LOGIC OUTPUTS | T735-1, T735-3, T735-5, T735-23: Dual RS422/485 differential and dual complimentary TTL T735-11, T735-13, T735-15: Dual LVDS differential and dual complimentary TTL Unloaded TTL output voltage: +5 V TTL source impedance: 50Ω Outputs are logic true when optical input receives light |
| BANDWIDTH | RS422/485 versions: DC to 10 MHz (0 to 20 Mb/s data rate) T735-23 (AC coupled): 4 kHz (kBaud) max LVDS versions: DC to 100 MHz (0 to 200 Mb/s data rate) |
| RISETIME | RS422/485 versions: 10 ns, nominal (15 pF, 100Ω load) LVDS versions: 500 ps, nominal (10 pF, 100Ω load) TTL outputs: 600 ps, nominal (50Ω load) |
| FALLTIME | RS422/485 versions: 10 ns, nominal (15 pF, 100Ω load) LVDS versions: 500 ps, nominal (10 pF, 100Ω load) TTL outputs: 600 ps, nominal (50Ω load) |
| JITTER | Optical input to RS422/485 versions: < 40 ps RMS Optical input to LVDS versions: < 20 ps RMS Optical input to TTL outputs: < 12 ps RMS Analog O/E Output: < 12 ps RMS |
| OPERATING TEMPERATURE | 0 to 60°C; extended MIL/COTS ranges available |
| CALIBRATION INTERVAL | One year |
| POWER | +12 V at 500 mA max 2.1 mm x 5.5 mm connector Optional high retention-force MMCX connector available J12 Universal Wall-Plug Adapter recommended |
| CONNECTORS | ST or FC (option) input receptacles Gold plated SMB TTL and optical monitor outputs D9 female RS422/485/LVDS differential signal output 2.1 mm X 5.5 mm barrel power connector |
| INDICATORS | LEDS: Front and rear panel green Power and blue Trigger Trigger LED intensity indicates trigger status: Dim for optical input above DC threshold, Bright for optical trigger edge transitions above threshold |
| PACKAGING | 4.75" (L) x 4.00" (W) x 1.25" (H), extruded anodized aluminum Optional removable mounting flange |
| CONFORMANCE | OEM product has no UL/FCC/CE compliance requirements Designed to meet UL/FCC/CE requirements Power adapter when furnished is UL/CE certified |
T735-1: compact DC-coupled 850nm optical input with dual RS422/485 and complimentary TTL outputs converter
T735-3: compact DC-coupled 1310nm optical input with dual RS422/485 and complimentary TTL outputs converter
T735-5: compact DC-coupled 1550nm optical input with dual RS422/485 and complimentary TTL outputs converter
T735-11: compact DC-coupled 850nm optical input with dual LVDS and complimentary TTL outputs converter
T735-13: compact DC-coupled 1310nm optical input with dual LVDS and complimentary TTL outputs converter
T735-15: compact DC-coupled 1550nm optical input with dual LVDS and complimentary TTL outputs converter
T735-23: compact DC-coupled 1310nm optical input, with AC-coupled input for the dual RS422/485 and complimentary TTL outputs converter