CENTRAL PROCESSOR PACKAGE INSTALLATION

2.17 PA SYSTEM FEED

The CPP can be connected to a building public address to permit paging via the dispatch console(s). The console(s) must be equipped with programming option TDM-OP431 or TDV-OP431 to use this fea- ture.

1.Connection to the PA system is made from TB4 on the CSC line terminator I/O board, located on the rear of the CPP power supply as shown in (see Fig- ure 2-15for terminal locations on the Line Termi- nator Board).

2.PA feed audio is obtained from terminals A1 and A2. The audio output is a 600W balanced line at - 10 dBm.

3.PA PTT is obtained from terminals K1 an K2. PTT is an isolated, normally open dry contact closure, which may be wired into the audio path or used to control an amplifier gate (preferable).

2.18CONNECTIONS TO AC POWER

The CPP is connected to its AC power feed via a surge protected power distribution strip in the CPP cabinet. One strip will be provided for every two, 60" cabinets or each individual 88" cabinet. An IEC-320 input connector and line cord is located on the bottom of the AC strip. The line cord connector has been sup- plied in accordance with the power supply option specified at the time of order.

Figure 2-15 CPP POWER SUPPLY

February 1996

 

Part No. 004-3039-274

2-16

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EFJohnson VR-CM50 manual PA System Feed, Connections to AC Power

VR-CM50 specifications

The EFJohnson VR-CM50 is a state-of-the-art mobile communications solution designed for first responders and public safety agencies. This versatile device is engineered to enhance communication efficiency and reliability, ensuring that users can stay connected in critical situations.

The VR-CM50 features a rugged design, built to withstand the harsh environmental conditions often encountered by emergency personnel. It meets military specifications for durability, including shock, vibration, and water resistance. With a lightweight and compact form factor, the VR-CM50 is easy to install in various vehicles without compromising the available space or mobility.

One of the standout technologies in the VR-CM50 is its advanced digital trunking capability. The device operates on multiple frequency bands, allowing for seamless communication across various networks. This flexibility is crucial for interoperability among different agencies, especially during joint operations or mutual aid scenarios.

The VR-CM50 also offers enhanced audio quality, ensuring that users can clearly hear and be heard even in noisy environments. Its digital signal processing technology minimizes background noise and enhances voice clarity. This feature is vital for first responders who often communicate in high-pressure situations where every word counts.

Another key characteristic of the VR-CM50 is its integration with a wide range of communication systems. The device is compatible with various communication protocols, enabling connection with existing infrastructure. This adaptability allows agencies to leverage their current resources while benefiting from the latest technological advancements.

The VR-CM50 promotes user safety with built-in emergency features. It includes a dedicated emergency button that, when pressed, instantly alerts dispatchers and other personnel of the user's location and status. This feature is particularly beneficial for officers on patrol or in isolated areas, enhancing their safety during critical incidents.

Furthermore, the VR-CM50 supports GPS capabilities, providing real-time location tracking for fleet management and situational awareness. This technology not only improves operational efficiency but also enhances coordination during complex incidents.

In summary, the EFJohnson VR-CM50 is a robust and feature-rich mobile communication solution tailored for public safety professionals. Its rugged construction, advanced digital trunking, superior audio quality, and integration capabilities make it an essential tool for effective communication in the field. By fostering interoperability and user safety, the VR-CM50 stands as a reliable choice for agencies striving to enhance their emergency response capabilities.