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EndRun Sonoma N12 Network Time Server (CDMA)

CDMA-Synchronized, Dual Gigabit Ports


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While installing an antenna on the roof is a typical requirement for most other time servers, with the CDMA-Synchronized Sonoma you can easily mount the antenna inside your building.
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For details on how to purchase the EndRun Sonoma N12 Network Time Server (CDMA), please click the button below to send us your details and brief requirements. We can then quote you accordingly.


Sonoma N12(CDMA)

While installing an antenna on the roof is a typical requirement for most other time servers, with the CDMA-Synchronised Sonoma you can easily mount the antenna inside your building.The Sonoma can serve accurate time to any system running on NTP or SNTP client. With dual gigabit ports and a fast microprocessor for high-capacity packet throughput (7,500 requests/second), it 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, and you can easily manage it via on 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 and restrict HTTPS, SNMP, SHH, Telnet access to specific hosts.

Time Synchronisation to UTC via CDMA Cellular/PCS Signals

The Sonoma includes a propietary CDMA receiver for synchronisation to Coordinated Universal Time (UTC). It receives its timing information from the Global Positioning System (GPS) via the CDMA mobile telecommunications network used by many cellular/PCS telephones. This means the antenna can be conveniently located inside buildings, anywhere a cell phone signal is available.

PTP/IEEE-1588 Grandmaster Clock Option

The Sonoma can be configured an an IEEE-1588-2008 compliant, Precision Time Protocol (PTP) Grandmaster Clock with high capacity and hardware timestamping. 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 of 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. No support contacts required.

Manufacturer EndRun
Part No. Sonoma-N12-CDMA
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 CDMA Receiver Accuracy - < 10 microseconds to UTC (USNO) when locked, typical.
NTP Receiver Accuracy - < 10 microseconds @ 7,500 requests/second
NTP Client Synchronisation Accuracy - 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 time 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 CDMA Receiver:
Digital Cellular Mobile Receive Band - 869 - 894 MHz
PCS Mobile Receive Band - 1930-1990 MHz
Japanese Cellular Mobile Receive Band - 860-875 MHz (optional configuration)
TIA/EIA IS-95 CDMA Pilot and Sync Channels
TNC connector (female) on rear panel, Z = 50 ohms
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