Telex EMS-4001 Specifications, General, Program Input Connectors Input Level 100mV maximum

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EMS-4001 Specifications

General

Input and Output Power:

AC Input: 100-240 VAC, 50/60 Hz

Channel Power (each channel): 24 ±1 VDC, 1 A Dimensions: 1.75” (44.5 mm) high, 19” (483 mm) wide, 10.31” (261.9 mm) deep

Weight: approximately 4.5lbs (2kg) Environmental Requirements:

Storage: -20°C to 80°C; 0% to 95% humidity, noncon- densing

Operating: -15°C to 60°C; 0% to 95% humidity, non- condensing

Program Input Connectors Input Level: 100mV maximum

Voltage Gain: 25 ±3 dB

Output Level (to intercom channel): 1.0Vrms nominal, 2.3Vrms max.

Input Impedance: 75k ohms

Common Mode Rejection: Greater than 50 dB

Connector type: DB9F female, 9-pin D-Sub 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 Channels, Balanced Mode (BAL/UNBAL switch set to BAL)

Output Level: 1 Vrms nominal

Input Impedance: 300 ohms ±10%

Bridging Impedance: greater than 10,000 ohms

Sidetone: -40 dB, 35 dB adjustable range

Figure 4 - EMS-4001 sidetone adjustment locations.

Contact Information

Telex Communications, Inc.

12000 Portland Avenue South

Burnsville, Minnesota 55337

Telephone: (800) 392-0498

Fax: (800) 323-0498

Form Number: 9320-7713-000 Rev B

Date: December, 2006

Call Signaling:

Send: 20 kHz ±100 Hz, 0.5 Vrms ±10%

Receive: 20 kHz ±800Hz, 100 mVrms Mic-Kill Frequency:

Send: 24 kHz ±100 Hz, 0.5 Vrms ±10%

Receive: 24 kHz ±800 Hz, 100 mVrms Noise Contribution: less than -70 dB

Common Mode Rejection Ratio: greater than 50 dB

Connector type: One XLR-3M for each channel Balanced Configuration Pinouts

Pin 1: DC/audio Common

Pin 2: Intercom audio low and +24 VDC output

Pin 3: Intercom audio high and +24 VDC output

Intercom Channel, Unbalanced Mode (BAL/UNBAL switch set to UNBAL)

Output Level: 2 Vp-p (750 mVrms)

Input Impedance: 200 Ohms ±10%

Bridging Impedance: greater than 10k ohms ±5% Call Signaling:

Send: 11 ±3 VDC

Receive: 4 VDC minimum

Connector Type: One XLR-3M for each channel Pin 1: Common

Pin 2: +30 ±1 VDC output

Pin 3: Intercom audio high

Expansion Input/Output

Connector Type: 1/8” Stereo phone jack

Tip: Talk output

Ring: Listen input

Sleeve: Common

Ordering Information

EMS-4001

4 channel expansion station with 2.0 amp power sup- ply with instantaneous auto reset in a single unit. Catalog Number: 90007713000

This specifications information is preliminary and is subject to change without notification.

Brand names mentioned are the property of their respective companies.

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Contents EMS-4001 General EMS-4001 SpecificationsProgram Input Connectors Input Level 100mV maximum Expansion Input/Output
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EMS-4001 specifications

The Telex EMS-4001 is a prominent digital intercom system renowned for its exceptional audio quality and user-friendly interface. Geared toward professional audio environments such as broadcast studios, theater productions, and large event venues, the EMS-4001 offers reliable communication solutions that enhance operational efficiency.

One of the standout features of the EMS-4001 is its user-defined channel configurations. This allows operators to customize the intercom channels according to specific needs and workflows, accommodating both simple and complex communication setups. The system supports multiple channels simultaneously, ensuring that all team members can communicate without interference, which is crucial in high-pressure environments.

The EMS-4001 utilizes advanced digital signal processing technology, which enhances sound clarity and minimizes latency. With superior audio quality, users can enjoy crystal-clear communication, even in noisy settings. The digital transmission also provides resistance to electromagnetic interference, which is particularly important in broadcast or live event situations where electronic devices are abundant.

The intercom system is designed with versatility in mind. It features various connection options, including wired and wireless setups, allowing operators the flexibility to determine the best arrangement for their specific requirements. With options for belt-packs and desktop stations, the EMS-4001 is adaptable for use by different roles within a production team, from stage managers to sound engineers.

Another notable characteristic of the EMS-4001 is its robust build quality. Crafted to withstand the rigors of live events, the hardware is both durable and lightweight, making it suitable for quick deployment and transportation. This reliability ensures that users can depend on the system to perform consistently, minimizing downtime during critical moments.

Additionally, the EMS-4001 incorporates features such as programmable buttons and user-friendly visual displays, which streamline operation and facilitate quick access to essential functions. These aspects make it even easier for users to manage communications on the fly, contributing to a more efficient workflow during events.

In summary, the Telex EMS-4001 digital intercom system stands out for its customizable channel configurations, remarkable audio fidelity, versatile connectivity options, and solid construction. Its advanced technologies and thoughtful design make it an ideal choice for professionals seeking to optimize their communication capabilities in demanding audio environments.