The Alarm and Control Unit CL-3350 monitors two GPS-Timing-Receivers to get to a redundant timing system with high reliability and a minimized failure rate.
The version CL-3351 Alarm and Control Unit monitors two DCF-77 Timing Receivers.
Both versions can process up to 16 AUX Alarm Inputs. They can, i.e., be used to monitor up to four fully equipped CL-3220-32 Distribution Units with Alarm Option.
The Unit has optical and acoustical alarm as well as a RS232 Error Protocol output