914-HDE Motherboard

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The Model 914-HDE motherboard is the core of the 914-X series modular multiplexer system. It can operate as a single card system providing an extremely compact solution for High Definition (HD) video, Gigabit Ethernet and multiple serial data channels. An expansion interface allows for the addition of up to eight (8) 914-X series expansion cards. Optical rates up to 6 GBaud per fiber wavelength reduce optical costs and increase signal density.

The 914-HDE fiber optic multiplexer combines Focal’s expertise in Time Division Multiplexing (TDM) and replaces multiple media converters and optical multiplexers reducing size, weight, power and cost.

The 914-HDE supports advanced features, such as: real-time diagnostics over a dedicated RS-232 channel, field-upgradable firmware, and software configurable Ethernet, serial and video ports.

Diagnostic readings may be accessed via an RS-232 serial link in real time by using Focal™ Graphical User Interface (GUI) software, based on the Microsoft® .NET Framework, or by using a customer’s own software configured to read Focal’s serial ASCCII protocol or Modbus ASCCII format.



  • Supports SD-SDI, HD-SDI and 3G-SDI video
  • Supports Fast Ethernet and Gigabit Ethernet
  • Supports two non-isolated, configurable serial channels for camera controls and sensors
  • Real-time diagnostics and Graphical User Interface (GUI)
  • Rugged design for harsh environments
  • Expansion connector for added interfaces
  • Composite Video
  • Ethernet
  • Serial Data
  • Sonar
  • Hydrophone
  • CANbus
  • Responder/Trigger
  • LED header for enclosure diagnostics
  • Reclocked video


  • Reduces cost and size of systems requiring HD video
  • Ethernet and serial interfaces
  • Supports a wide range of optical options, including CWDM wavelengths and multi-mode configurations
  • Simplifies troubleshooting with advanced diagnostics


914-HDE Specification

Optical Fiber

1 or 2 singlemode (9/125 μm)
Latency < 20 μs (not including fiber)
Baud Rate 4.0 GBaud standard, 6.0 Gbaud optional
Wavelength 1310/1550 nm or CWDM
Optical Budget > 20 dB
Power Voltage +4.5 to +13.5 VDC 
Power Consumption 5 W typ., 7.5 W max.
Expansion cards add additional power consumption
Protection Overvoltage, reverse voltage, under voltage, time-delay fuse
Dimensions 40.6 mm x 88.9 mm
Weight < 80 g (0.18 lb)
Options Bidirectional transceivers, higher or lower optical budgets, multimode, higher optical data rates for 3G and GbE
LEDs Power status, video status, optical status, serial activity, Ethernet status and activity
RS-232 to PC Diagnostics from remote and console through GUI for system status and configuration
Optical Connectors 1 or 2 LC (SFP)
Video SMB, 75 Ω
Ethernet RJ-45
Serial Molex MicroFit, 8-pin
Power Molex, 0.156” spacing, 2-pin
Temperature 10 °C to + 60 °C, operational
-40 °C to + 85 °C, storage
Humidity 85% RH, non-condensing
Vibration 5 g, 25 - 1000 Hz, 3 axis
Shock 30 g, 11 ms half sine, 3 axis
Options Extended temperature


Technical Support

Telephone:  +1-902-468-2263