Concept
EndRun Sonoma N12 GPS synchronised Network Time Server
| URI | http://vocab.nerc.ac.uk/collection/L22/current/TOOL1696/1/ | |
|---|---|---|
| Within Vocab | SeaVoX Device Catalogue | |
| Alternative Labels | EndRun Sonoma N12 | |
| Definition | The Sonoma Network Time Server is a precision server of Coordinated Universal Time (UTC) that can be connected via an Ethernet port to any TCP/IP network. The GPS Subsystem in the Sonoma receives transmissions from satellites that are operating in compliance with the Navstar GPS Interface Control Document (ICD) known as GPS-ICD-200. The Sonoma is composed of a Global Positioning System (GPS) Subsystem containing the EndRun GPS Receiver and system oscillator. The receiver can relate the time-of-arrival of the received GPS transmissions from the satellite to GPS time. Monitoring, maintenance and control is accomplished by a wide range of protocols. Available timing protocols include: Network Time Protocol (NTP), Simple Network Time Protocol (SNTP), Time, Daytime, and the optional Precision Time Protocol (PTP/IEEE-1588). In its most basic operation, the Sonoma sends NTP reply packets in response to NTP request packets which it has received from clients. The timestamps it sends in its NTP reply packets are accurate to10 microseconds, typical. Once synchronized, the Sonoma can maintain acceptable network synchronization accuracy for about a day without GPS reception. The instruments operating temperature range is 0 to 50 degrees Celsius. | |
| Date | None | |
| Identifier | TOOL1696 | |
| Note | accepted | |
| Is Version Of | TOOL1696 | |
| version | 1 | |
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