The 5600ACO2 Automatic Changeover is used with two 5600MSC Master Clock / Sync Generators. The 5600ACO2 system uses latching relays to ensure maximum reliability and minimal disruption in the event of any failure. The complete system provides the highest level of security for television station video and time synchronization systems. Two power supplies alleviate single point of failure concerns. Fifty-Six LEDs provide status information as to the health of the two 5600MSCs. Two GPO outputs indicate which master is active, and when the inputs from both masters are not the same.
Manual Switching
Three switches are recessed into the front panel for added security: an AUTO / MANUAL switch, a GPI / FRONT PANEL switch, and an A / B select switch. In manual mode the changeover can be operated from a GPI or from a front panel switch.
Automatic Switching
In automatic mode, all signals from both 5600MSCs are scrutinized to detect any abnormalities. When an error in level, pulse width, phase, time code, or other abnormality is detected, the 5600ACO2 circuitry triggers, and signals are switched to the backup 5600MSC.






