NTS-9000 CESIUM Time Server

Time Server ELPROMA NTS-9000 Cesium NTP PTP IEEE1588

Head Unit View of NTS-9000A Cesium Hybride System

Elproma uses world leading manufactures of Cs beams, linking them on unique way to own made NTP/PTP time servers using both: PPS and ToD(rs232)As a result, Elproma delivers to market, a ready to use single cesium time server hybrid system – a well world know as NTS-9000. This system is available on request only. 

Adobe incone NTS-9000A brochure

NTS-9000 Cesium Time Server NTP PTP IEEE1588 SyncE

The history of Elproma NTS-9000 cesium time server begins early 2000. The very first prove of concept cesium driven time server (model NTS-3000) was built for Royal Observatory of Brussel ROB and it was presented during PTTI 2004Several other National Institute of Metrology (NMI) have purchased Elproma solution later on. They has put great effort in calibration, measurement and testing for long than decade. The real development challenge was to synchronize both frequency (PPS) and UTC phase (ToD) from atomic clocks directly using single rs232 interface - the one exclusively dedicated for cesium beam PC monitoring facility (see details on YouTube). Following NMI laboratories are partial reference of using Elproma time servers directly with 5071A cesium atomic clock (click to read PDF references from): EURAMET, VSL, SIQ, NPL, INRIM, GUM. The ready to use NTS-9000 cesium hybrid solution is available since 2005.

Trusted Time Node with NTS-9000 Cesium

NTS-9000 cesium trusted time node - cluster of time servers


Clepsydra Trusted Time Node with NTS-9000


Testing at VSL The Nrtherlands

NTS-3000 Cesium NTP Time Server in VSL Laboratory The Netherlands


London Time Laboratory at NPL London



at NPL (UK)


at GUM in Poland