IRIG B to NTP/SNTP Converter

IRIG B to NTP/SNTP Converter

IRIG B TO NTP/SNTP CONVERTER – SPC-INS-1010 is a compact DIN rail mountable protocol converter unit which synchronizes and maintains the timing and frequency requirement of power and process industry equipment using IRIG-B signal obtained from GPS receiver. It provides nanosecond accuracy when external time references are not available. It has the storage facility to store the system log file. It delivers NTP, SNTP, PFC-Pulse, RS232 & RS485 outputs. The system enables configuration and monitoring through Web-based application. It supports a wide range of power supply input either 90V-260V AC/DC or 18-36VDC or 36V-72VDC. Protocol converters are used in providing integrated solutions while connecting up sub-systems using a different communication protocol. SANDS manufactures a wide range of converters to meet system integration requirements typically for use in timing applications. IRIG-B to NTP/SNTP converters is often required in integrating older generation of GPS Clocks to new generation of DCS systems.

Category: .


  • IRIG-B is a Time Reference from any GPS Receiver
  • High free-running accuracy
  • Year and Time offset are users adjustable
  • Compact Din Mountable System
  • Configuration can be done through Ethernet
  • 10/100Mbps NTP/SNTP Ethernet output
  • Accepts IRIG-B AM and TTL time signals
  • Battery backup provided for the time update
  • Adjustable Time Zone
  • Events storage facility
  • Isolated and protected Interfaces
  • The input power supply can be customized


  • 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
Input Signal
IRIG-B (AM) Carrier: 1kHz
Modulation Ratio: 3:1
Recommended Vin : 1V-7V (p-p)
IRIG-B (PWM/TTL) Logic 0 : 0V +250mV
Logic 1 : 3V to 5V +10%
Connector BNC, Female
User Interface
Alarm 1xPFC for Signal 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
Number of Output 1No Max
Connector Pluggable Terminal Block
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
Output Modbus, NMEA and standard formats
Distance 15m
Connector DB9, Female
RS485 Output*
Output Modbus, NMEA and standard formats
Distance 1200m
Connector Pluggable Terminal Block
Note: * Optional