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The Telex ES-4000A is a 4-channel, full-duplexing wired intercom user station. Up to 4 units may be connected to the US-2002 user station for a total of 16 additional channels.
The ES-4000A offers backlit function keys, speaker outputs, standard XLR or DB9 program inputs, and overload and short-circuit protection and fault indication.
The ES-4000A features Clear-Com compatibility for integration with existing systems, flexible self-contained or in-line powering options, tabletop or rackmount use, and professional, rugged construction.
Multi-Channel User wired expansion Intercom Station with full duplexing and call capability
Separate channel outputs on D-sub connector with, separate program level trims
Backlit Listen, Call and Talk keys for each channel
Expansion output for connection to additional units, up to 16 additional channels supported
Red, flashing Incoming Call light indications with selectable beep tone
Mic Kill Key turns off all microphones on channel for quick channel clearance
Separate Program Input for each channel allows connection to line level audio sources for headset or speaker monitoring or routing to intercom channel; assignable interrupt for to-channel audio while speaking on channel