The MCE-325 is a 4-channel, programmable intercom station. It may be used as a headset station or with the addition of the MCS-325 Modular Speaker as a speaker station. It may be mounted in a console or equipment rack via optional mounting kits. The MCE-325 can be used with either 2-wire or 4-wire intercom lines, or a combination of both. In the labeling on the MCE-325, references to channels 1, 2, 3, and 4 indicate 2-wire lines; references to 4-wire A and 4-wire B indicate 4-wire lines. The MCE-325 can be interfaced to a variety of external devices including external program sources, 2-way radios, paging systems, and satellite circuits.