Basic features
- The standard configuration of the RT420 includes:
- 8 TTL-level IRIG-B outputs;
- 2 amplitude-modulated IRIG-B outputs;
- 3 open collector outputs;
- 1 optical output;
- 1 RS-232 with frames totally user programmable;
- 1 dry contact relay to indicate “Locked” condition;
- GPS Data Backup Battery;
- internal NTP/SNTP server.


