The IF4W4 modular 4-wire interface connects camera intercoms, two-way radios, ber-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.