The Evertz 5600ACO2 is a professional-grade, dual-channel automatic changeover system designed to ensure uninterrupted signal transmission in mission-critical broadcast and media distribution environments. Its primary function is to continuously monitor two primary incoming video/audio/data feeds (typically a main and a backup path) and automatically switch to the secondary source within microseconds upon detection of a failure in the primary signal. This system is essential for maintaining on-air continuity in television networks, playout centers, and contribution/distribution links where any signal loss is unacceptable. It employs advanced, user-configurable criteria for triggering a switch, including loss of signal (LOS), loss of lock (LOL), excessive bit error rate (BER) for digital signals, and deviation from reference black/level for analog video.

The system is engineered for reliability and precise control. Each of its two independent channels can be configured with specific priority, hysteresis, and delay settings to prevent false switching due to transient errors. The front panel provides a clear visual status of both input signals, the active source, and any alarm conditions. Manual override controls allow operators to force a switch or lock to a specific input if necessary. The unit supports a wide range of signal formats, including SDI (from SD to 12G), AES audio, and ASI, making it a versatile guardian for both baseband and compressed transport stream signals. Its robust electronic switching ensures glitch-free transitions, preserving signal integrity during the changeover event.

Housed in a compact 1RU chassis, the 5600ACO2 is built for rack mounting in broadcast equipment bays and features redundant, hot-swappable power supplies for maximum system uptime. It offers comprehensive monitoring outputs, including pass-through of the selected signal and independent monitoring of both A and B inputs. Control and configuration can be managed via the front-panel interface, remote Ethernet connection with a web GUI, or integration into larger monitoring and control systems using protocols like SNMP. The Evertz 5600ACO2 acts as a critical insurance policy for broadcasters, providing a fully automated, fast, and reliable fail-safe mechanism to protect the integrity of the broadcast chain.