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Telex MS-4002 - 4-Channel Main Station for Wired Intercom System

BH #TEMS4002 • MFR #F.01U.391.552
Telex MS-4002 - 4-Channel Main Station for Wired Intercom System
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Expected availability: 2-4 weeks
$161/mo. suggested payments for 12 Mos.
with the credit card.§ 

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  • This item is noncancelable and nonreturnable.
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Telex F.01U.391.552 Overview

The Telex MS-4002 is a professional 4-channel, wired intercom master station and system power supply, with a 4-amp system power supply, dedicated back-lit function buttons, separate speaker and panel microphone volume controls, selectable voice activation controls, and outputs for connection to a location PA system.

4-Channel Main Station and 4-amp system power supply in single unit
Headset or built-in speaker monitoring with separate speaker volume control
Auto-Sensing headset connector detects dynamic or electret headset microphone type
Dedicated Voice Activation Microphone(VOX) control set adjusts levels for headset and panel microphone inputs
PA output with dedicated selector key for intercom announcements over PA system
Back lit keys for improved visibility in low or poor lighting environments
Incoming, flashing Call Light indicators with assignable beep tone
Mic Kill key turns off all microphones on channel, clears channel
Separate line level audio source connection for monitoring or intercom channel routing with assignable channel interrupt when operator is speaking
Stereo monitoring available with connectors to powered speakers for independent left/right listening to Channels 1-4
Universal 100-240 Volt power supply
UPC: 800549427722

Telex F.01U.391.552 Specs

Output Connectors4 x 3-Pin XLR Male
4 x RCA Phono
Input ConnectorsFront Panel:
4-Pin XLR Male
1/4" TRS Phone
Rear Panel:
4 x 3-Pin XLR Female
1 x 9-Pin Female D-Sub
Output LevelProgram Out(to Intercom Channel):
1.0 Vrms nominal, 2.3 Vrms maximum
Intercom Channels(Balanced Mode):
1.0 Vrms nominal
Intercom Channels(Unbalanced Mode):
.750 Vrms +/-10%
PA Output:
235 mVrms nominal
Speaker Output:
0 dB nominal(1.0 Vrms maximum)
Headphone Amplifier: 250 mW +/-10% into 150 Ohms
65 mW +/-10% into 600 Ohms
Input LevelProgram Input:
100 mV maximum
Panel Microphone Input:
-25 dBu maximum
Input Impedance300 Ohms(Balanced Intercom Channels)
200 Ohms(Unbalanced Intercom Channels)
Frequency Response200 Hz - 8 kHz +1/-3 dB
THD + N<0.2% @ 200 mW(Headphone Amplifier)
<0.2% @ Channel Output(Microphone Amplifier)
Minimum Common Mode Rejection>50 dB
Voltage GainProgram Input: 25 +/-3 dB
Headphone Amplifier: 30 +/-3 dB
Panel Microphone Amplifier:
Mic to Channel: 25 +/-3 dB
Mic to Headphone(adjustable): 45 dB +/-10% maximum in 150 Ohms
Mic to PA: 15 +/-3 dB, 235 mVrms +/-10%
Voltage Output24 VDC
Call SignalingIntercom Channels Balanced Mode:
Send: 20 kHz +/-100 Hz, 0.5 Vrms +/-10%
Receive: 20 kHz +/-800 Hz, 100 mVrms
Intercom Channels Unbalanced Mode:
Send: 11 +/-3 VDC
Receive: 4 VDC Min.
Sidetone18 +/-2 dB, adjustable(Headphone Amplifier)
-40 dB, 35 dB adjustable range(Intercom Channels, Balanced Mode)
Microphone TypeElectret Condenser
Microphone Input1/4" TRS Phone
Phantom Power5-24 VDC
Headset Connector4-Pin XLR Male
Maximum Current CapacityNot specified by Manufacturer
Maximum # of Belt PacksNot Applicable
Input Power Requirement100-240 VAC, 50/60 Hz
Channel Power: 24 VDC Nominal
Power AdapterNo
Dimensions1.75 x 19 x 10.31" (44.5 x 483 x 261.9mm)
Weight4.5 lb (2 kg)
Packaging Info
Package Weight11.4 lb
Box Dimensions (LxWxH)20 x 19.9 x 4.5"

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