Hollyland 2/4 Wire Converter for Intercom Systems

The 2/4 Wire Converter is a bidirectional bridge that lets a Hollyland Mars wireless intercom talk to a wired 2-wire or 4-wire party-line system such as Clear-Com, RTS, or Datavideo. Three-pin XLR jacks handle the 2-wire and 4-wire connections, and onboard DSP runs echo cancellation so audio looping back through the wired side does not create feedback or a doubled voice for the wireless crew.

Independent gain controls on the wired and wireless legs let an operator balance both sides of the link, and a set of distance-compensation switches adjusts for cable runs up to 656 ft so signal quality holds up on long wired trunks. The converter runs on 12-36V pulled directly from the intercom system, needs no separate power supply, and up to three additional units can be daisy-chained in a single 1RU space to bridge four wired circuits at once.