CHD 1402

4K HDMI to 12G SDI Converter

Datasheet Quickreference


The CHD 1402 is a compact HDMI to SDI converter. It is an ideal solution for any application which requires a broadcast quality SDI signal derived from an external HDMI source. Currently only PCM audio present in the HDMI stream will be embedded into the corresponding channels on the SDI output.

The module is also compatible with the yelloGUI and LynxCentraal control software, which provides access to additional internal settings.

An SDI fiber output is also provided with a selection of optional SFPs.

SFP Model Description  Power
OH-TX-12G-LC SFP Fiber TX - Singlemode - LC connector - 10km* 0.5dBm
OH-TX-4-12G-LC SFP Fiber TX - Singlemode - LC, ST or SC conn. - 40km* 3dBm
OH-TX-12G-XXXX-LC CWDM SFP Fiber TX - Singlemode LC Conn. - 10km*
XXXX=Wavelength. 18 according to ITU T G692.2 1270nm through 1610nm
*Distance is an approximation.
Note: For legal reasons, HDMI capture devices from LYNX Technik AG are designed not to capture, convert or transmit video or audio from HDCP copy-protected sources (e.g. Satellite receivers, Cable receivers, etc.).


  • Supports 12G / 6G / 3G / 1.5G / SD-SDI Signals
  • 3G SDI Level A and Level B support
  • 2x BNC and 1x optional Fiber SFP outputs
  • 1x HDMI 2.0b input
  • HDMI Embedded PCM Audio Passes Transparently
  • HDMI present LED indication
  • LynxCentraal and yelloGUI compatible for internal settings

Ordering Information

CHD 1402 4K HDMI to 12G SDI Converter
OH-TX-12G-LC 12Gbit SDI Optical Transmitter
OH-TX-4-12G-LC 12G-SDI Single Channel Optical Transmitter with CDR
OH-TX-12G-XXXX-LC 12Gbit SDI Optical Transmitter - CWDM (XXXX=Wavelength 1270nm to 1610nm)