Overview

The Enhanced Digital Access Communications System (EDACS) is a high-performance, group-oriented radio communications system available in VHF, UHF, and 800 and 900 MHz frequency bands and a wide variety of configurations to meet the critical communications requirements for the present and the future.

EDACS is a reliable and flexible trunked radio communications system with a unique architecture that ensures continued operation even under failure conditions.  It features multiple autonomous layers of control.  These control layers monitor each other’s performance and if one fails, the others recognize the failure and provide alternate modes of operation.

Additionally, features such as fast access, voice clarity, security, and ease of maintenance make EDACS the system of choice.

The EDACS network is defined by a division of three tiers:

• Tier 1 (System) includes all system configurations built on trunked Failsoft™ architecture and is based upon individual operational and RF coverage requirements.  These configurations may range from a single site to a simulcast solution with multiple transmit sites operating on the same frequency.
• Tier 2 (Multisite) links two or more systems via an Integrated Multisite and Console Controller (IMC™) to form a fault-tolerant wide area network. 
• Tier 3 (Extended Network) links two or more multisite controllers in a star architecture to form a fault-tolerant, distributed extended network.