Guaranteed Good GPS Sync • CorrectDateDisplayed • Brand New u-bloxGPS Receiver Installed • Fully Working •IRIG-B, 10MHz and 1PPS Inputs/Outputs • Firmware v1.36 •IPv6 Ready • TCXO
Photos show the actual item for This unit has been upgradedwith a new, latest generation GPS receiver modulefrom u-blox. It is therefore unaffected by theSeptember 18th 2022 week number rollover eventthat caused most SyncServers to fail to sync toGPS and eventually to show an incorrect date. Thenew card is good for accurate GPS time and datereception until 2037. It also will lock to GPSmuch faster then the original receiver (about 6minutes in my testing), and probably see a fewmore satellites.Here's a used Symmetricom/Microsemi SyncServer S250 NTP serverthat obtains highly accurate and traceable time from the GPSsatellite constellation - as well as IRIG-B, 10MHz and 1PPSinputs if preferred. The OEM GPS receiver in this unit hasbeen replaced with an updated module for solid service formany years to come. The unit has been tested (results inscreenshots below) and confirmed to work fully. The cosmeticcondition is good. The VFD display is clear and legible. Noantenna is included but I have the matched 12V AT575 antennaavailable in a separate listing, and/or can edit the listingto include one if required. Note that the antenna voltage is12V so you cannot use one of the generic 5V antennas commonlyoffered for sale. The antenna needs to be mounted outside witha complete view of the sky. It ships set to the factory logondefaults (admin:symmetricom) ready for your install. This unithas the TCXO internal oscillator. The installed firmware isv1.36 which is the latest version available at the time oflisting. Listing comprises the items you see in the imagesonly.
Full details may be obtained fromthe Datasheetand User align="center">Usually Sells for $5,353
Multiple and Versatile Timing Configurations
The Stratum 1 S250 will automatically synchronize to GPS, IRIG BAM, 1PPS, and 10 MHz in that priority. It smoothly transitionsfrom one reference to the next available if the higher prioritysignal is lost or regained. This is perfect for operating withdifferent backup time or frequency sources. The S250 can alsorevert to a Stratum 2 mode and retrieve time from otheruser-designated time servers.
Easy To Set Up and Maintain
SyncServers are the easiest to set up andmaintain network time servers in the world. The front panel ofthe SyncServer S250 is designed to quickly bring the serveronline with a few front panel keystrokes or DHCP. To fullyconfigure the unit, use the very intuitive web interface or thestep-by-step wizards for the most common operations.
Highly Robust and Secure
The S250 provides reliable and secure networksynchronization technology by combining multi-port, high-speed/high-capacity network interfaces and versatile GPS timingreceiver technology.
Flexibility and Performance
The multiple ports of the S250 provide theflexibility to adapt to different network topologies as networksgrow and change. It supports a wide range of network protocolsincluding IPv4 and IPv6, for easy management and seamlessintegration into your existing and future network. The highspeed processor and a nanosecond clock assure high bandwidth NTPperformance for hundreds of thousands of network clients.
Assured Perfect Timing
The Stratum 1 level S250 derives extremelyaccurate time directly from the atomic clocks aboard the GPSsatellite system. Reliability is further enhanced via Stratum 2operation by retrieving time from other user-designated timeservers. All SyncServers can be upgraded to an internal Ruofferiumatomic oscillator to keep the time server accurate if the GPSsignal is lost.
Customer Tested Time Server Design
The 5th generation Symmetricom SyncServer S250has decades of design experience behind it. Customer input isevident in every detail. From the front and rear panel designconfigurations to the state-of-the art web interface, the S250is unsurpassed in reliability, accuracy, security and ease ofuse.
Bottom Line
The SyncServer S250 is the perfect solution tobringing ultra precise time and frequency to network andinstrumentation synchronization with the added benefitease-of-use and state-of-the-art networking generation, High-Bandwidth NTP Time Server
Stratum 1 Operation Via GPS Satellites 3 Independent 10/100Base-T Ports High-Resolution Vacuum Florescent Display Full numeric keypad IPv6 and IPv4 Compatible Secure Web-Based Management SSH, SSL, SCP, SNMP v3, Custom MIB, HTTPS, Telnet, FTP, and more Stratum 2 Operation via NTP Servers Nanosecond time accuracy to UTC IRIG B AM, 1PPS, 10 MHz input/output Dedicated Sysplex Timer output Email Alerts for Alarms or Error Single Satellite Timing Dual USB ports All features of the SyncServer S200
