Symmetricom SyncServer 1520R-S250 UPGRADED GPS NTP Network Time Server IRIG-B [Refurbished]
( 284735258397) )
Tested/Guaranteed • Brand New iLotus GPS Receiver Installed • Good Condition • Fully Working • IRIG-B, 10MHz and 1PPS Inputs/Outputs • Firmware v1.36 • IPv6 Ready • TCXO
Photos show the actual item for sale
Description
Here's a lightly used, late model (mid-2015) Microsemi SyncServer S250 NTP server that obtains highly accurate and traceable time from the GPS satellite constellation - as well as IRIG-B, 10MHz and 1PPS inputs if preferred. The unit has been tested (screenshots below) and confirmed to work fully. The cosmetic condition is very good - the photos show the actual item for sale. As you would expect from a late model, the VFD display is bright and clear. No antenna is included but I have the matched 12V AT575 antenna available in a separate listing, and/or can edit the listing to include one if required. Note that the antenna voltage is 12V so you cannot use one of the generic 5V antennas commonly offered for sale. The antenna needs to be mounted outside with a complete view of the sky. It ships set to the factory logon defaults (admin:symmetricom) ready for your install. This unit has the TCXO internal oscillator. The installed firmware is v1.36 which is the latest version available at the time of listing. Listing comprises the items you see in the images only.
Why Replace the GPS Receiver Module?
This
unit has been upgraded with a new, latest generation GPS receiver
module from iLotus. Why is that relevant (and maybe worth paying a
little more for)? Pretty much all GPS clocks are by design going to fail
at a future date. The problem is that the GPS system does not send out a
date, but a week number. And in the GPS system there was only capacity
in the original design to have a calendar of 1024 weeks (ie. a bit less
than 20 years). At the end of the 1024 week period, the calendar goes
back to the beginning again and many clocks start showing dates that are
1024 weeks in the past. The OEM Furuno GPS modules supplied in stock
SyncServers are going to experience this "week number roll over" in
September 2022 so I suggest that it's a reasonable approach to do a
planned hardware upgrade now at very modest cost rather than just leave
the problem out in the field and praying that someone else gets the "WTF
just happened" call when the old card's firmware decides it's time to
travel back in time to 2002.
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