Originally featured on BroadcastEngineering.com
MultiDyne introduces COMMS-2000 two-wire to four-wire intercom interface
MultiDyne Video & Fiber Optic Systems introduced the COMMS-2000 two-wire to four-wire intercom interface at IBC2009.
The COMMS-2000 interface allows for the conversion of a single channel of standard or TW party-line intercom to four-wire audio, while also converting call signals to RS-422 data. It also offers the capability to convert the signal back to its original form. The resulting audio and RS-422 data from the COMMS-2000 can then be sent to a Clear-Com Matrix port, fiber-optic converter such as the MultiDyne Fiber-Comms or connected to another COMMS-2000 over twisted-pair cable such as CAT-5E.
Ideal for mobile productions, the COMMS-2000 offers a lightweight, compact size in a design that does not call for an additional power source, as it obtains its DC operating current through the party-line connection on pin two of its XLR connector. It uses lightweight UTP cables, so long copper cable runs are no longer required. When used with a Clear-Com Matrix system, the COMMS-2000 allows a party-line channel to be connected to the Matrix frame with up to 5000ft of cable. It can easily be rack-mounted, with up to three units fitting across a standard 1-RU rack space.
For systems where only one or two party-line channels are needed, the COMMS-2000 is ideal. Simply run UTP cable from the Matrix frame to the COMMS-2000, which is connected to and powered by the party-line system. A rear-panel dip-switch on the COMMS-2000 allows the four-wire audio and RS-422 data to be connected to the RJ-45 jack, instead of an all-inclusive, hardwired DB-15 connector, simplifying set-up.