The AXCS9000STD from AXTAL is an Cesium Primary Reference Clock with excellent long term stability. It has multiple outputs for 5 MHz, 10 MHz and 1 PPC with very low phase noise and jitter. It delivers sine wave/square wave/TTL output with a frequency stability of 5 x 10-13 and has a long term stability of 5 x 10-14.
This is one of the first commercially available Optically-Pumped clocks. Compared to the magnetic deflection method, it offers higher reliability, higher stability, lesser influence of physical factors and a guaranteed operating lifetime of 8 years.
The clock requires either a DC supply from 22 to 75 V or an AC supply from 200 to 240 V (if both AC and DC supply inputs are present, then AC power supply is automatically selected).
The AXCS9000STD can be controlled and monitored via touch-screen or remotely via a LAN or RS-232 connection. It supports system synchronization via a 1PPS input. The clock is available in a 19” rack-mountable enclosure that measures 456 x 553 x 177 mm and is suitable for 4G/5G networks, DTV, DAB, CMDA and Tetra and IPTV applications.