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RTS Telex


Four-Channel User/Main Station with 4 amp Power Supply

Auto-Sensing Headset Connector

The MS-4002 has a built-in autosensing headset connector that will determine automatically whether a dynamic or electret headset is connected to the system.

Speaker Station or Headset Station

Use the built-in speaker for listening and add an optional MCP-90 series Gooseneck Panel Microphone for talkback. You can also turn off the speaker volume, and plug in a headset for private communication.

Voice Activated Microphone (VOX)

Separate controls adjust the voice activation level for the headset microphone and panel microphone inputs.

Public Address (PA) Output, with PA key

Use your intercom microphone to talk over a PA system.

Back-lit Keys

Improves visibility in low-light

Incoming Call Indications

Red flashing call light, with beep tone if desired.

Mic Kill Key

You can turn off all microphones on a channel to quickly clear the channel.

Program Input for Each Channel

Connect any line-level audio source for monitoring in the speaker or headset, or for routing to the intercom channel. The program audio to the channel can be set to interrupt while the MS-4002 operator is talking on the channel.

Listening with External Powered Speakers

You can connect external powered speakers and then monitor channels 1, 2, 3 and 4.


Add more channels by connecting optional EMS-4001 Expansion Stations. Each EMS-4001 adds four additional powered channels (up to twenty channels).

Instantaneous Auto-Reset

Instantaneous Auto Reset (IAR), the newest technology in performance and safety, which uses a revolutionary new circuitry that dynamically monitors line fault conditions. Then, when the fault is removed, automatically brings individual power supply channels up.

Clear-Com Compatible

Can run in unbalanced mode.

This product is not CE certified.

Channels 4 CH
Color Black
Depth 10.31" (261.9 mm)
Height 1.75" (44.5 mm)
Power Requirements AC Input: 100-240 VAC, 50/60 Hz, Channel Power: 24 VDC nominal (12 to 30 VDC), 65 to 150 mA MS-4002 is capable of supplying 4 amps overall
Weight 4.41 lbs (2 kg)
Width 19" (482.6 mm)



Related products

RTS is part of the Bosch Communications Systems family of brands, offering the world's most complete portfolio of professional audio and communications solutions.

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