TimeTools T300 is a highly accurate GPS referenced network time server synchronizing computer networks using the NTP or SNTP protocols. The T300 is housed in a high-quality aluminium enclosure that can be installed in a standard 19” rack. The device incorporates a large, bright 40 character by 2 line LCD display. The display provides both NTP and GPS status and configuration information that is clearly and easily visible.
The Network Time Protocol
The Network Time Protocol is a standard protocol for disseminating time across a computer network. Any NTP or SNTP client can synchronize to GPS time sync hardware. This includes Windows and Linux servers and workstations as well as many other network devices, such as routers, switches, CCTV video surveillance systems and Digital Video Recorders (DVR).
The T300 boasts being able to process in excess of 1500 NTP polls per second. Based on a standard NTP client polling rate of 128 seconds, the T300 can serve up to 200,000 clients. Using the NTP protocol TimeTools T300 can synchronize time on networks of almost any size. Additionally, this is achieved without affecting the accuracy of the device.
Integrated High-Sensitivity GPS Time Receiver
The T300 has an integrated high-sensitivity 16-channel GPS receiver specially designed for timing applications. It has the ability to operate with an indoor or outdoor located GPS antenna, potentially providing large savings in installation costs.
The GPS receiver provides the T300 processor board with timestamps accurate to within 15 nsecs of UTC time. The NTP daemon running in the appliance can attain an accuracy of better than 1 microsecond.
Additionally, leap seconds are automatically detected in advance of insertion. This means that leap seconds can be handled correctly by the NTP daemon without any user intervention whatsoever.
The appliances GPS receiver also implements Time Receiver Autonomous Integrity Monitoring (TRAIM). A feature only found on high-end time references, which allows out of tolerance satellites to be detected and excluded from time solutions. In this manner, high integrity timing is assured.
The T300 supports a single 10/100 Mbit auto-sensing Ethernet network port. The Ethernet port supports Auto-MDIX which allows the device to automatically detect whether straight through or cross over Ethernet cable is being used and adjust accordingly to make a link.