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All Publications »The IF4W4 modular 4-wire interface connects camera intercoms, two-way radios, fiber optics, and other 4-wire devices to a standard Clear-Com intercom line. The 1-RU chassis holds up to four individual interface modules, each with its own 4-wire terminal block and XLR-3M connector to interface with Clear-Com.
The IF4W4 accepts balanced or unbalanced 4-wire input and is transformer isolated. It is powered by the Clear-Com intercom line, using standard two-conductor shielded mic cable.
Front Panel Capabilities
Front-panel controls allow the user to adjust the operating parameters for each interface module, optimizing the interface between the 4-wire device and the party line. Capabilities include: adjusting the transmit and receive levels between the intercom system and the 4-wire line; optimizing the hybrid null balance; switching the transmit level between mic and line level; and emulating either a carbon or a dynamic microphone. A two-color LED transmit-level indicator gives a visual indication of send levels to the transmit lines.
A front-panel test jack is connected to a built-in oscillator. Using the null control and an earphone with a 1/8" plug or 4-pin headset, the user can quickly null the send/receive hybrid. Set-up switches allow the user to assign the interfaced devices to separate intercom channels, or to assign any or all to a single party line.
Connections
Each interface module has its own set of transformer-isolated connectors. The terminal block provides a pair of connections for both transmit and receive signals, with a 600-ohm load across the receive line. An XLR-3M connector provides the link between the interface and the Clear-Com intercom line.
Features
Specifications
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Full Compass Systems, LTD. All rights reserved. |
Full Compass is a national leader in Professional Audio, Professional Video, A/V and Lighting sales. For over 30 years, our goal has been to provide the best possible value with exceptional customer service. We offer over 700 top equipment brands including, Shure, Yamaha, Panasonic, Sony, JBL, Sennheiser, Sanyo, QSC, Audio-Technica, Crown and much more. We also provide services such as computer systems integration, lighting design, and rentals. Full Compass is an authorized service center and parts distributor for most of the major manufacturers we carry. |