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Telex EMS-4001 4 Channel Main Station for Wired Intercom System

SKU: TEEMS4001

This item is no longer available.

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TRUSTED PROTECTION PLANS, EXCEPTIONAL SERVICE.

Invest In Your Gear and Peace Of Mind!

Accidents happen where life happens. Protect your favorite Adorama products and purchase a protection plan to stay covered from accidental damage, mechanical or electrical failure, and more.

Repair or Replacement

Repair or Replacement

If we can’t fix it, we’ll replace it at no additional cost.

Accidental Damage

Accidental Damage

Protect your product from drops, spills, and more.

Peace of Mind

Peace of Mind

Enjoy your gear without fear. We have you covered!

Malfunction Protection

Malfunction Protection

When regular use of your product over time results in mechanical or electrical failure.

Zero Deductible

Zero Deductible

We will never charge you a deductible after the purchase of a plan.

Customer-Focused Support

Customer-Focused Support

Our claims process is simple & easy and our customer service team is happy to help.

Adorama Protect powered by Extend is available for purchase to customers in the United States. Not available for purchase Internationally or in U.S. Territories.

Telex EMS-4001 Specifications

  • AC Input

    100-240V AC, 50/60Hz

  • Channel Power

    Each Channel: 24 +/-1V DC, 800mA

  • Storage Temperature

    -20 deg. C to 80 deg. C / -4 deg. F to 176 deg. F; 0% to 95% humidity, non-condensing

  • Operating Temperature

    0 deg. C to 50 deg. C / 32 deg. F to 122 deg. F; 0% to 95% humidity, non-condensing

  • Program Input Connectors Level

    100mV maximum

  • Program Input Connectors: Voltage Gain

    25 +/-3dB

  • Program Input: Output Level

    1.0Vrms nominal 2.3Vrms max

  • Program Input Connectors: Impedance

    75kOhms

  • Program Input Common Mode Rejection

    Greater than 50dB

  • Program Input Connector Type

    DB9F female, 9-pin D-Sub

  • Program Input Pin Type

    Pin 1: Common
    Pin 2: Channel 3 program in low
    Pin 3: Channel 4 program in low
    Pin 4: Channel 5 program in low
    Pin 5: Channel 6 program in low
    Pin 6: Channel 3 program in high
    Pin 7: Channel 4 program in high
    Pin 8: Channel 5 program in high
    Pin 9: Channel 6 program in high

  • Intercom Channel: Output Level

    Balanced Mode: 1Vrms nominal
    Unbalanced Mode: 2 Vp-p (750 mVrms)

  • Intercom Channel: Input Impedance

    Balanced Mode: 300Ohms+/-10%
    Unbalanced Mode: 200Ohms+/-10%

  • Intercom Channel: Bridging Impedance

    Balanced Mode: greater than 10000Ohms
    Unbalanced Mode: greater than 10000Ohms+/-5%

  • Intercom Channel: Sidetone

    Balanced Mode: -40dB, 35dB adjustable range

  • Intercom Channel Call Signaling: Send

    Balanced Mode: 20kHz +/-100Hz, 0.5Vrms +/-10%
    Unbalanced Mode: 11 +/-3V DC

  • Intercom Channel Call Signaling: Receive

    Balanced Mode: 20kHz +/-800Hz, 100mVrms
    Unbalanced Mode: 4V DC minimum

  • Intercom Ch. Mic-Kill Frequency: Send

    Balanced Mode: 24kHz +/-100Hz, 0.5Vrms +/-10%

  • Intercom Channel Mic-Kill Frequency

    Receive: Balanced Mode: 24kHz +/-800Hz, 100mVrms

  • Intercom Channel Noise Contribution

    Balanced Mode: less than -70dB

  • Common Mode Rejection Ratio

    Balanced Mode: greater than 50dB

  • Intercom Channel: Connector Type

    Balanced Mode: One XLR-3M for each channel
    Unbalanced Mode: One XLR-3M for each channel

  • XLR-3 Configuration Pinouts

    Balanced Mode: Pin 1: DC/audio Common
    Balanced Mode: Pin 2: Intercom audio low and +24V DC input
    Balanced Mode: Pin 3: Intercom audio low and +24V DC input
    Unbalanced Mode: Pin 1: Common
    Unbalanced Mode: Pin 2: +30 +/-1 VDC output
    Unbalanced Mode: Pin 3: Intercom audio high

  • Expansion Input /Output: Connector Type

    1/8" stereo phone jack

  • Expansion Input /Output: Tip

    Talk output

  • Expansion Input /Output: Ring

    Listen input

  • Expansion Input /Output: Sleeve

    Common

  • Dimensions (H x W x D)

    1.75 x 19 x 10.31" / 44.45 x 482.6 x 261.87mm

  • Weight

    Approximately: 4.5lbs / 2.04kg

About Telex EMS-4001

The Telex EMS-4001 integrates four (4) powered channels with talk, listen and call controls in a single rack mount unit. Saves on rack mount hardware and eliminates power supply to expansion station interconnect cables. Connects directly to an MS-2002, MS-4002 or US-2002 Master Station to add four (4) complete powered channels. Or connects to a previous EMS-4001 or ES-4000A Expansion Station to add another four (4) powered channels (up to 20 channels total). Provides automatic current limiting during short circuits or overloads. Front panel fault indicator provided for each channel.

Mic kill turns off all microphones on a selected expansion channel, or all channels, using the master station's Mic Kill key. Each expansion channel has its own program input. Connect any line-level audio source for monitoring in the master station's speaker or headset and for routing to the expansion channel if desired. When program audio is routed to the channel it can be set to interrupt while the masterstation operator is talking on the channel.

Binaural (Stereo) Listening
If the master station is equipped with external powered speakers can assign the channels to either right or left speaker. There are also four (4) additional program inputs on the back for each added channel. 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. It is Clear-Com Compatible.

What's in the box:

  • Telex EMS-4001 4 Channel Main Station and Power Supply for Wired Intercom System
  • Telex 1 Year Warranty