Our customers call us superheroes, who are we to argue?

EndRun Sonoma N12 Network Time Server (GPS)

GPS-Synchronized, Dual Gigabit Ports


More Image(s)

The Sonoma is a Stratum 1 Time Server that provides an accurate and reliable source of network time inside your firewall.
Availability: In stock

For details on how to purchase the EndRun Sonoma N12 Network Time Server (GPS), please click the button below to send us your details and brief requirements. We can then quote you accordingly.


Sonoma N12(GPS)

The Sonoma is a Stratum 1 Time Server that provides an accurate and reliable source of network time inside your firewall.It can serve accurate time to any system running an NTP or SNTP client. With dual gigabit ports and a fast microprocessor for high-capacity packet throughput (7,500 requests/second), the Sonoma can support hundreds of thousands of network clients with an NTP timestamp accuracy of <10 microseconds. The highly-integrated solid-state design is very reliable design is very reliable, and you can easily manage it via one of the network ports or the RS-232 serial port. A Web Interface (HTTPS) is also provided for status monitoring using your internet browser.

Network Security Hardened

Extra care has been taken to "harden" the Sonoma against network attacks. There are only a handful of settings that you need to make and they are typically set only once in the lifetime of the product. Since this is a set-it-and-forget-it box, we have eliminated all extraneous protocols/services in order to minimise exposure to security holes. You can change critical settings via SSH or Telnet and monitor the alarm/status information by using HTTPS, SNMP, SSH or Telnet. Security-conscious users can disable any or all of the risky protocols such as HTTPS, Telnet, Time and Daytime or restrict access to specific hosts.

Best Holdover Performance

The Sonoma will continue to serve Stratum 1 time for a substantial period if the GPS reference signal is ever lost. This is called the holdover period and it is dependent upon the quality of the oscillator and the software control algorithms. The basic Sonoma is provided with a TCXO (drift is 10 milliseconds/day), and it will continue to serve accurate Stratum 1 time for a full 24 hours after signal loss. This is the best holdover performance for any time server on the market with a TCXO. For even better holdover performance you may want to consider and oscillator upgrade.

PTP/IEEE-1588 Grandmaster Clock Option

The Sonoma can be configured as an IEEE-1588-2008 compliant, Precision Time Protocol (PTP) Grandmaster Clock with high capacity and hardware in real-time with daily and weekly charts. The PTP/IEEE-1588 option can be added to one or both of the gigabit ports and delivers the level of performance that is required in high-speed, low-latency systems.

Measurement Statistics and Charting

Real-time charting on NTP, Oscillator and CPU statistics is available via the Web Interface. Measurements are continuously computed and displayed in real-time with daily and weekly charts. The oscillator statistics are good for verification that the unit was locked at a certain time. NTP statistics show the NTP packet rate and the accuracy of the NTP and System Time relative to UTC. The CPU statistics show the free memory, processor load and operating temperature.

High Reliability and Free Technical Support for Life

The Sonoma uses EndRun's power efficient, fanless design that achieves an estimated MTBF of over 25 years (16 years with Rubidium). The system is made in America, backed by a 3-year warranty, and provided with free technical support via phone or email for life.

Manufacturer EndRun
Part No. Sonoma-N12-GPS
End of Life? No
Width 17"
Height 1.75"
Depth 10.75"
Weight [Kg] 2.72
Time to Lock < 5 minutes, typical (TCXO)
< 10 minutes, typical (OCXO/Rb)
Synchronisation Accuracy GPS Receiver Accuracy - < 30 nanoseconds RMS to UTC (USNO) when locked
NTP Timestamp Accuracy - < 10 microseconds @7,500 requests/second
NTP Client Synchronisation - Network factors can often limit LAN synchronisation accuracy to 1/2 - 2 milliseconds, typical
Holdover Accuracy TCXO (standard) - 10 millisecs/day. Serves Stratum 1 time for 24 hours after signal loss.
Premium OCXO - 80 microsecs/day. Serves Stratum 1 time for 35 days after signal loss.
Rubidium - 5 microsecs/day. Serves Stratum 1 for 140 days after signal loss.
Time/Frequency Output CE, FCC, RoHS, WEEE
Timing Protocols NTP, NTP v2, v3, v4, SHA/MD5 authentication, and broadcast/multicast mode and autokey
SSH client/server with “secure copy” utility, SCP
SNMP v1, v2c, v3 with Enterprise MIB
HTTPS (Web Interface)
TIME and DAYTIME server
TELNET client/server
FTP and DHCP clients
Optional PTP/IEEE-1588-2008 (v2)
Network Ports Two rear-panel RJ-45 jacks
Two 10/100/1000 Base-T Ethernet
Front Panel Sync LED: Amber LED pulses to indicate lock status
Alarm LED: Red LED indicates a serious fault condition
RS-232 serial I/O on rear panel DB9M jack for secure, local terminal access
Parameters fixed at 19200 baud, 8 data bits, no parity, 1 stop bit
Receivers GPS Receiver:
L1 Band - 1575.42 MHz
12 Channels, C/A Code
15 dB minimum gain at receiver input
Single-satellite mode and dynamic-platform mode
Timing Receiver Autonomous Integrity Monitoring (TRAIM)
TNC connector (female) on rear panel, Z = 50 ohms. 5 VDC to antenna.
Oscillator TCXO, OCXO or Rubidium
Power 10 Watts with TCXO (standard configuration). 11-13 watts with OCXO. 16-23 watts with Rb.
90-264 VAC, 47-63 Hz, 1.0A maximum
3-Pin IEC 320 on rear panel, 2-meter cord included
Environmental Temperature Operating:
0˚ to +50˚C

-40˚ to +85˚C
Environmental Humidity Operating:
5% to 90% RH, non-condensing

5% to 95% RH, non-condensing