Termination. Due to the broadband high-frequency signals used in serial digital circuits, serious consideration must be given to the proper termination of all unused signals (although there are some monitoring and special test functions which do not require termination). Proper termination of the high-frequency video signal cancels cable reactive components, improves return loss, minimizes stubbing and antenna effects, and also helps in meeting RFI/EMI criteria. All of the terminated video jacks we supply terminate with a 75 ohm characteristic impedance, and can be used in analog and serial digital circuits.

Single Terminated.
When patched, these jacks route signals straight through. When unpatched, the rear port’s BNC connection is terminated to a 75 ohm load.

Single Unterminated.
These jacks route signals straight through, with no normallin g and no termination.