When a gooseneck microphone is inserted in the panel microphone connector, the built-in panel microphone is automatically bypassed. Use either of these microphones for talk back, then use the internal speaker for listening, or connect a pair of headphones to the headset connector for private listening.

Intercom Channel Connections

The method of connection depends on the type of box. The S box, P box, and RM versions connect to the intercom system using pre-fabricated cables in a phantom powered configuration. The U box version is designed for permanent installation, and it can be either phantom powered or locally powered.

Description of Phantom-Powered Connection

In phantom-powered connections the operating power and intercom audio for the entire system are carried over the same wires. The advantage of this method is simplicity of connection. The system power supply (PS-2001L, SPS-2001A, etc.) automatically provides what is known as a terminating impedance for the intercom system. Without this terminating impedance, the sound quality becomes distorted, and the levels shift every time additional stations are connected. The disadvantage of the phantom power method is some operating power is lost over very long intercom cable runs, and performance at distant intercom station may be reduced. Generally, if intercom stations are within a few hundred feet from the system power supply, phantom power is sufficient. Also, increasing the number of stations reduces the overall operating distance. Phantom-power is generally the only method used to connect the S box, P box, and RM versions. Figure 4 illustrates a phantom-power intercom system.

NOTE: The distance over which power can be delivered is less than the distance over which audio can be delivered. Audio can be delivered for several miles to locally powered stations as described below.

FIGURE 4. Phantom Powered Example

Example: Figure 4 is an example of a phantom-powered system. In this system, a PS-2001L power supply is set to isolate mode. Each channel is a separate party line and current per channel is limited to 1Amp. Both single and two-channel intercom stations may be connected by using Y cables (or JB2 Junction boxes). Pre-fabricated cables may be used, or cables may be constructed using the diagrams in Figure 10 on page 14.

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Telex SS-1002 technical manual Intercom Channel Connections, Description of Phantom-Powered Connection
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SS-1002 specifications

The Telex SS-1002 is a highly regarded wireless intercom system designed primarily for broadcast, film, and live production environments. Known for its reliable performance and user-friendly features, the SS-1002 has become a staple in professional communication setups.

One of the standout features of the Telex SS-1002 is its advanced wireless technology. The system operates in the 2.4 GHz ISM frequency band, which provides robust transmission capabilities while minimizing interference from other wireless devices. The range of the SS-1002 can extend up to 300 feet, allowing users to communicate seamlessly across large production areas.

The SS-1002 is also characterized by its high-quality audio clarity. Utilizing digital transmission techniques, it delivers clear, distortion-free communication, which is crucial for effective coordination during live events. The unit is equipped with a full-duplex communication system, allowing for simultaneous speaking and listening, which enhances the collaborative workflow among team members.

Another notable aspect of the Telex SS-1002 is its ease of use. The system features intuitive controls and a straightforward interface, making it accessible for both technical and non-technical users. Users can quickly adjust volume levels, switch channels, and monitor battery life through the device’s LED indicators.

Power efficiency is yet another characteristic of the SS-1002. It runs on rechargeable lithium-ion batteries, providing up to 10 hours of continuous use on a single charge. This long battery life reduces downtime and ensures that production crews can maintain constant communication throughout demanding schedules.

Moreover, the Telex SS-1002 supports multiple belt packs, enabling a scalable communication network tailored to the needs of the production team. Each belt pack can be configured to operate on different channels, facilitating private communication among specific groups without causing interference with others.

In conclusion, the Telex SS-1002 stands out in the realm of wireless intercom systems due to its advanced technology, high audio fidelity, user-friendly design, and efficient power management. Its versatility and reliability make it an essential tool for professionals in the broadcasting and live production industries, where effective communication is key to success.
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