Model 907-FOS Fiber Optic Switch

The 907-FOS card is a 2 x 1 fiber-optic switch available in a PC/104 form-factor. When combined with a Focal™ 907-SPLIT fiber-optic splitter, they create a redundant fiber-optic path for multiplexer systems and other optical data links.

The 907-FOS is a powered fiber-optics card typically installed at the console end of the fiber-optic link. It is controlled by either a manual onboard toggle switch or with a TTL compliant input signal. The 907-FOS will select one of the two fiber-optic paths or outputs and route all communications to a single fiber.

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  • Supports ITU-T G694.2 CWDM wavelengths
  • Manual or TTL controlled fiber-optic switch
  • Singlemode or multimode versions available
  • On-board LED indicating active fiber-optic link


  • Creates a redundant fiber-optic link, improving system reliability
  • Allows remote selection of active fiber

Typical Applications

  • High failure resistant Remote Operated Vehicles (ROV)
  • Pipe inspection robots
  • Bomb disposal robots
  • Video security systems
  • Armored vehicles


Model 907-FOS Specifications
Fiber Type Singlemode (9/125 μm)
Multimode (50/125 μm and 62.5/125 μm)
Wavelength 1310/1550 nm, ITUT G694.2 CWDM
Return Loss > 40 dB
Insertion Loss < 1.0 dB
Switching Time < 100 ms, including debounce
Power Voltage +5.0 VDC ±10%, regulated
Power Current 0.07 A (typical), 0.09 A (max.)
Power Used 0.25 W (typical), 0.5 W (max.)
Protection Overvoltage, reverse polarity, 1 A timedelay fuse
Switch Control TTL compatible 2.4 V threshold (others available)
LEDs Power (electrical), active fiber
Dimensions PC/104 (form-factor only), 3.550" x 3.775"
Weight < 120 g (0.26 lb)
Optical 2 x ST in (F2, F3), 1 x LC out (F1)
Control and Power 6-pin Wago
Stacking Header PC/104 (for stacking 907 cards only)
Temperature 0°C to +60°C (operational)
-40°C to +85°C (storage)
Humidity 85% RH, non-condensing
Vibration 5 g, 25 - 1000 Hz, 3 axes
Shock 30 g, 11 ms half-sine, 3 axes



Technical Support

Telephone:  +1-902-468-2263