GPS NTP Time Server For Network Time Synchronization


GPS NTP Time Server (SYNTIME) for Network Time Synchronization is a highly accurate time server. It generates time protocols to synchronize NTP/SNTP clients (Simple Network Time Protocol)/PTP clients (Precision time protocol IEEE 1588) over the network and operates at a speed of 10/100/1000Mbps. The NTP server accepts the time and frequency signals from sources like GPS or GLONASS. It achieves nanosecond accuracy and the system clock operates at stratum 1 when synchronized with time sources. It is a sleek, rack-mountable unit that synchronizes and maintains equipment/device time and avoiding any time drifts due to local RTCs. NTP output from time server supports unicast, broadcast, and multicast methods based on selection and behaves like a reference clock for the network. Apart from time synchronization protocols, it supports MD5 (Security key), SNMP, SSH, HTTP (Configuration), TELNET, FTP, and SYSLOG. IP address of the LAN ports can be field configurable.

NTP server is compatible with the IPv4 network and PTP server compatible with both IPv4/IPv6 networks. The time server complies with Leap second correction and DST settings. In addition, GPS NTP Time server is available with a variety of additional output ports: IRIG B Time Code, Fiber Optic Pulse, RS232, RS485, PFC, and Fiber Optic Ethernet outputs. It has the ability to send alert notifications via SNMP Traps. Above all, it’s a cost-effective solution for Stratum-1 time synchronization across your network.

GPS NTP Time server is designed to provide time synchronization to networks such as Electric Sub-Stations, Power Generation and Distribution, Transmission companies, Oil and Gas Utilities, Railways and Metro networks, Airports and Air-Traffic Control facilities, Internet Service Providers (ISPs), and Cable TV networks as well as Campus networks that are required to maintain complete isolation from public networks for security reasons.

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  • Satellite Time reference for the System
  • Provides optional TCXO/OCXO stability
  • Cable delay compensation available
  • Field configurable pulse outputs
  • 10/100/1000Mbps PTP, NTP, and SNTP Ethernet time outputs
  • Provides IRIG-B AM and TTL time signals
  • 2.048MHz E1 frequency output
  • MODBUS output over RS485/RS232
  • Fiber Optic Pulse and Fiber Optic Ethernet outputs
  • Adjustable Time Zone
  • Sleek and small 1U rack-mountable
  • Isolated and protected Interfaces
  • The input Power supply can be Customized
  • Cable length can be supplied as per requirement
  • 2×20 LCD with sufficient keys and Status LED
  • Battery backup provided for the time update
  • Alarm contact provided for the annunciation
  • All weatherproof Antenna


  • Event Loggers
  • Disturbance Recorders
  • Electronic Tri-vector Meters
  • Phasor Measurement Unit
  • SCADA Servers
  • Numeric Relays
  • Slave Clocks
  • Servers of EMS
  • Electronics Instruments


Power Supply
Standard 85 to 260V AC, 1φ, (47Hz to 63Hz)
or 90V to 370V DC
Custom 36V to 72V DC (48V), 18V to 36V DC (24V)
Power Consumption <15W
GPS Receiver & Antenna
Configuration Single Antenna
Dual Antenna*
Timing Accuracy < 20nS RMS Accuracy
Output Impedance 50Ω
Frequency 1575.42 ±1.023MHz
Environmental All weatherproof Antenna, IP67
Satellite tracking 12 Channels, C/A code
Coverage 360°Azimuth, 0°- 90°Elevation
User Interface
LCD Display 2×20 Alphanumeric
Keypad UP, Down & Enter
Alarm PFC contact for GPS Fail, Power Fail*
Configuration port 10/100Mbps Ethernet
Operating Temp 0°to 50°C
Humidity 95% Non-Condensing
Enclosure 1U, 19” Rack Mountable
Dimension 45mm (H) x 484mm (W) x 272mm (D) +5mm
Weight <5Kg
Protection Class IP20
Event Output (Pulse Output)
Reference PPS 0V to 5V DC, TTL signal
User Configurable Pulse output* PFC, 250V AC/DC, 0.2A
Connector Pluggable Terminal Block
Number of Output 4Nos Max
IRIG-B Output*
Amplitude Modulation (AM) Carrier: 1kHz
Format: User Selectable
Modulation Ratio: 3:1
Unloaded Voltage : 0-5V (p-p)
Loaded Voltage : 0-3V (p-p) 150 ohm
Accuracy : <3 us to PPS
Maximum Distance : 3km
Pulse Width Modulation (PWM/ TTL) Logic 0 : 0V +250mV
Logic 1 : 5V +250mV
Format: User Selectable
Accuracy : <200ns to PPS
Rise Time : <15ns
Maximum Distance: 50m
Number of Output 5Nos Max
Connector BNC,75Ω, Female
Ethernet Output
Protocol NTP, SNTP, SNMP* & PTP*
Speed 10/100MBps, 10/100/1000MBps*
Connector RJ45
Distance 100m max without a switch.
Number of port 1 x 10/100MBps
Max 4 x 10/100MBps*
Max 2 x 10/100/1000Mbps*
RS232 Output
Output1 Proprietary String
Output2 MODBUS, NMEA, and standard formats
Distance 15m
Connector DB9, Female
RS485 Output
Output1 Proprietary String
Output2* Modbus, NMEA, and standard formats
Distance 1200m
Connector Pluggable Terminal Block
Fiber Optic Output*
TTL on FO (Pulse/IRIG-B TTL) Transmission: Simplex
No of output: 2No Max
Mode: Multimode
Connector : SC/ST
Wavelength: 820nm
Distance: 1500m
Ethernet On FO Transmission: Duplex
No of output: 1No Max
Mode : Multimode/Singlemode
Connector : SC/ST
Wavelength: 1310nm
Distance : 2000m (Multimode) / 20km (Singlemode)
Frequency Output*
E1 Clock 2.048MHz, HDB3 Coding
Number of Output 1No Max
Connector BNC/75Ω, Pluggable Terminal/120Ω
Note: * Optional