GPS time synchronization device


GPS time synchronization device is a compact DIN rail mountable unit that synchronizes and maintains the timing and frequency requirement of power and process industry equipment using a signal obtained from different external sources such as GPS and GLONASS. GPS Time synchronization unit – DRM-1010 is a cost-effective solution for time synchronization. It provides nanosecond accuracy when external time references are not available. It has a storage facility to store the system log file. It delivers NTP, SNTP, IRIG-B, PFC-Pulse, RS232 & RS485 outputs. The system allows configuration and monitoring through a Web-based application. It supports a wide range of power supply input either 90V-260V AC/DC or 18-36VDC or 36V-72VDC.

GPS time synchronization unit 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 Campus networks. It synchronizes a wide variety of power system equipment – SCADA servers, RTUs, Numeric Relays, Disturbance Recorders, digital fault recorders, Phasor measurement unit, event recorders, Slave clocks, Electronic tri-vector meters, IEDs, Data Loggers and Event Loggers.


  • Satellite Time reference for the System
  • High free-running accuracy
  • Compact Din Mountable System
  • Field configurable pulse outputs
  • 10/100MBps NTP & SNTP Ethernet time outputs
  • Provides IRIG-B AM and TTL time signals
  • MODBUS output over RS485/RS232
  • Battery backup provided for the time update
  • Adjustable Time Zone
  • Events storage facility
  • Isolated and protected Interfaces
  • The input Power supply can be Customized
  • Cable length can be supplied as per requirement
  • 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
  • Standalone computers


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 <10W
GPS Receiver & Antenna
Configuration Single Antenna
Timing Accuracy < 25nS RMS Accuracy
Output Impedance 50Ω
Frequency 1575.42 ±1.023MHz
Environmental All weatherproof Antenna
Satellite tracking 12 Channels, C/A code
Coverage 360°Azimuth, 0°- 90°Elevation
User Interface
Alarm* 1xPFC for GPS Fail & Power Fail
Configuration port 10/100Mbps Ethernet
Operating Temp 0°to 50°C
Humidity 95% Non-Condensing
Enclosure DIN Rail Mountable
Dimension 70mm (H) x 190mm (W) x 200mm (D) +5mm
Weight <1.5Kg
Protection Class IP20
Event Output (Pulse Output)*
User Configurable Pulse output PFC, 250V AC/DC, 0.2A (PPS, PP5S, PPM, PPQH, PPHH, PPH, PPD)
Number of Output 2Nos Max
Connector Pluggable Terminal Block
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 AM-1No & TTL-1No
Connector BNC,75Ω, Female
Ethernet Output
Protocol NTP & SNTP
Speed 10/100Mbps
Connector RJ45
Distance 100m max without a switch.
Number of port

1 x 10/100Mbps

Max 2 x 10/100MBps*

RS232 Output
Output1 Modbus, NMEA, and standard formats
Distance 15m
Connector DB9, Female
RS485 Output*
Output1 Modbus, NMEA, and standard formats
Distance 1200m
Connector Pluggable Terminal Block
Note: * Optional