T735 compact DC-coupled optical-to-RS-422/RS-485/LVDS converter

DC-coupled Optical-to-RS-422/RS-485/LVDS Converter - T735
  • 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
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The T735 accepts optical inputs from Highland Electrical-to-Optical converters or compatible sources. The T735-3, T735-5, T735-13, T735-15, and T735-16 versions are suited for use with singlemode or multimode fiber at 1310 and 1550 nanometers.

FUNCTION Logic-level DC coupled optical-electrical converter
INPUT T735-3, T735-13, T735-23: ST connectorized, 1mW, 1310 nm nominal optical input
T735-5, T735-15: ST connectorized, 1mW, 1550 nm nominal optical input
T735-16: FC connectorized, 700ps FWHM, 1mW peak, 1550 nm nominal optical input
INPUT THRESHOLD Optical:
100 µW to 800 µW (dash -3, -5, -13, -15)
100 µW to 2.5 mW (dash -23)
100 µW to 1.7 mW (dash -16)
Factory threshold setting 300 µW (500 µW, nominal for dash -16)
PROPAGATION DELAY 25 ns, maximum
MONITOR OUTPUT Optical monitor scaling: 1 V/mW into 50 Ω
Monitor source impedance: 50 Ω
LOGIC OUTPUTS T735-3, T735-5, T735-23: Dual RS422/485 differential and dual complementary TTL
T735-13, T735-15, T735-16: Dual LVDS differential and dual complementary TTL
Unloaded TTL output voltage: +5V
TTL source impedance: 50 Ω
Outputs are logic true when optical input receives light
T735-16 stretches nominal 700ps FWHM input optical pulse to 7ns FWHM, nominal logic output pulse
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)
T735-16 O/E impulse response:
7 ns output pulse-width, nominal
Pulse width adjustable over 2:1 range, typ.
RISETIME RS422/485 versions: 10 ns, nominal (15 pF, 100 Ω load)
LVDS versions: 1 ns, nominal (10 pF, 100 Ω load)
TTL outputs: 600 ps, nominal (50 Ω load)
FALLTIME RS422/485 versions: 10 ns, nominal (15 pF, 100 Ω load)
LVDS versions: 1 ns, nominal (10 pF, 100 Ω load)
TTL outputs: 700 ps, nominal (50 Ω load)
JITTER Optical input to RS422/485 versions: ≤ 50 ps RMS
Optical input to LVDS versions: ≤ 20 ps RMS
Optical input to LVDS (T735-16): ≤ 75 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 FC or ST input receptacle (depending on version)
Gold plated SMB TTL and optical monitor outputs
D9 female, RS422/485 or 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

PDF Datasheet: T735 optical-to-RS-422/RS-485/LVDS converter

PDF Manual: T735 optical-to-RS-422/RS-485/LVDS 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

T735-13: 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

T735-16: compact DC-coupled 1550nm optical input with pulse stretcher, dual LVDS, and complimentary TTL outputs converter

T735-23: compact DC-coupled 1310nm optical input with expanded optical threshold range, AC-coupled input for the dual RS422/485, and complimentary TTL outputs converter

J12: 12 volt power supply

J14: International plug adapter set for J12

J41: 3' SMB to SMB cable

J41-2: 6" SMB to SMB cable

J42: 3' SMB to SMA cable

J53: 3' SMB to BNC cable

J53-2: 6" SMB to BNC cable

J720 single-channel compact electrical-to-fiberoptic converter

T566: Mounting flange