WARNING

The following instructions are for use by qualified personnel only. To avoid electric shock, do not remove the cover unless you are qualified to do so.

AVERTISSMENT

Les instructions qui suivent s’adressent uniquement a un technicien qualifie. Pour evite des chocs electriques, ne pas ouvrir le boitier, a moins d’y habilite.

Configuration Pre-check

Before making connections, read the configuration notes that follow, and make sure that all switches and jumpers are properly set for your intended usage. Locations of configuration switches and jumpers are shown in Figure 2. Only the DIP switches and jumpers require internal access. If access is required, remove three screws from the top cover and three screws along the bottom edge from each side.

DIP Switches

DIP switches and their default settings are listed in Table 1. The following paragraphs provide additional details.

Program Interrupt DIP Switches

Each intercom channel has a dedicated program input. These can be used to feed background music, mix-minus audio (for broadcasting usage) etc. to the intercom channels. If external program sources will be connected to the EMS-4001, you have a choice of whether or not you want the program audio to interrupt (shut off) on the intercom channel while the MS-2001/EMS-4001 station operator is talking.

Audiocom Call Send and Receive DIP Switches

By default, all channels of the EMS-4001 can send and receive Audiocom call signals. You can disable call send or call receive capability for selected channels if desired.

Balanced/Unbalanced Switch

The switch is located on the back panel. The switch must be set to the balanced (BAL) position for use with an Audiocom Intercom System. Set the switch to the unbalanced (UNBAL) position when using the unit with a Clear- Com Intercom System.

Direct Program Listen Enable/Disable Jumpers

By default, each program input can be heard by intercom stations on the corresponding intercom channel. (This can be turned on or off for each program input via the MS-2001 front panel programming. See “Turning the Program Inputs ON and OFF” in the Operations section of the MS-2001 User Instructions.) Additionally, all program signals can be heard directly in the MS-2001 speaker or headset, and each program is output at the corresponding speaker jack on the back of the EMS-4001. To disable direct program listening for a program input, reset the appropriate jumper as shown in Table 2. Locations of the jumpers are shown in Figure 2.

Sidetone Trimmers

These trimmers are normally adjusted after all components are connected, and they can be accessed through the bottom cover as depicted in Figure 3. Refer to the MS-2001 User Instructions for the sidetone adjustment procedure.

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Telex EMS-4001 manual Balanced/Unbalanced Switch, Direct Program Listen Enable/Disable Jumpers, Sidetone Trimmers
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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.
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