Symmetricom SyncServer S250 OCXO UPGRADED Furuno GPS NTP Network Time Server
( 286598943870) )
Guaranteed Good GPS Sync •
BRAND NEW Vacuum Fluorescent Display Panel • Correct
Date Displayed • New Furuno GPS
Receiver Installed • OCXO Oscillator
Upgrade • IRIG-B, 10MHz and 1PPS Inputs/Outputs • Firmware
v1.36 • IPv6 Ready
Photos show the actual item for sale
Summary
1. A used fully working SyncServer S250 NTP server that
obtains highly accurate and traceable time from the GPS
satellite constellation
2. Cosmetic condition is good - the photos show the actual
item for sale. Note that a few nicks and scratches
have been retouched using matching paint so the unit will
look smart in your equipment rack.
3. This unit has been upgraded with a new, latest
generation GPS receiver module from Furuno. It is
therefore unaffected by the September 18th 2022 week number
rollover event that caused most SyncServers to fail to sync
to GPS. The new card is good for accurate GPS time and date
reception until beyond 2037. The new card will
typically see a few more satellites than the OEM original
product, but note that you may need to set the time mode to
'Dynamic' for an accurate satellite count on the front
panel.
4. The Vacuum Fluorescent Display has been replaced
with a brand new panel so you will benefit from bright,
clear digits for years into the future.
5. Screenshots taken during my testing of the actual
unit for sale are provided below.
6. No antenna is included, but I have matching antennae
listed separately. The antenna voltage is 12V so you cannot
use one of the generic 5V antennas commonly offered for
sale. And for best results the antenna needs to be mounted
outside with a complete view of the sky.
7. The unit has been reset to the factory logon defaults
(logon with admin:symmetricom) ready for your install.
8. This unit is the upgraded OCXO version. The
installed firmware is v1.36 - the most recent version
available.
9. No printed manual is included but a copy may be
downloaded from https://www.prostudioconnection.net/0912/SyncServer_S200_S250_S250i_UserGuide.pdf
if required.
10. No unpictured documents or accessories are included.
Full details may be obtained from
the Datasheet
and User Manual
https://www.prostudioconnection.net/1404/SyncServer_S250_User_Guide.pdf
Usually Sells for $5,353
Description
The SyncServer S250 provides multiple and versatile timing configurations that support the expanding technological requirements of large enterprises. It is Next Generation ready to be the synchronization source for multiple applications
Multiple and Versatile Timing Configurations
The Stratum 1 S250 will automatically synchronize to GPS, IRIG B
AM, 1PPS, and 10 MHz in that priority. It smoothly transitions
from one reference to the next available if the higher priority
signal is lost or regained. This is perfect for operating with
different backup time or frequency sources. The S250 can also
revert to a Stratum 2 mode and retrieve time from other
user-designated time servers.
Easy To Set Up and Maintain
SyncServers are the easiest to set up and
maintain network time servers in the world. The front panel of
the SyncServer S250 is designed to quickly bring the server
online with a few front panel keystrokes or DHCP. To fully
configure the unit, use the very intuitive web interface or the
step-by-step wizards for the most common operations.
Highly Robust and Secure
The S250 provides reliable and secure network
synchronization technology by combining multi-port, high-speed/
high-capacity network interfaces and versatile GPS timing
receiver technology.
Flexibility and Performance
The multiple ports of the S250 provide the
flexibility to adapt to different network topologies as networks
grow and change. It supports a wide range of network protocols
including IPv4 and IPv6, for easy management and seamless
integration into your existing and future network. The high
speed processor and a nanosecond clock assure high bandwidth NTP
performance for hundreds of thousands of network clients.
Assured Perfect Timing
The Stratum 1 level S250 derives extremely
accurate time directly from the atomic clocks aboard the GPS
satellite system. Reliability is further enhanced via Stratum 2
operation by retrieving time from other user-designated time
servers. All SyncServers can be upgraded to an internal Rubidium
atomic oscillator to keep the time server accurate if the GPS
signal is lost.
Customer Tested Time Server Design
The 5th generation Symmetricom SyncServer S250
has decades of design experience behind it. Customer input is
evident in every detail. From the front and rear panel design
configurations to the state-of-the art web interface, the S250
is unsurpassed in reliability, accuracy, security and ease of
use.
Bottom Line
The SyncServer S250 is the perfect solution to
bringing ultra precise time and frequency to network and
instrumentation synchronization with the added benefit
ease-of-use and state-of-the-art networking technology.
Features
- Next 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
















