Remote GPS Receiver Module with 1 DO and 1 PPS outputs

The GPS-721, a new GPS solution for Remote GPS Receiver module in ICP DAS, featuring high sensitivity, low power consumption and ultra small form factor with DCON and GPS protocols. This powerful item provides you with superior sensitivity and outstanding performance even in the harshest environment.The GPS-721 provides extra 1 channel DO and 1 channel PPS for users PPS signals can be used for precise timekeeping and time measurement. One can combine the PPS functionality with another as time synchronization source.

Therefore, the GPS-721 can be a powerful GPS remote module as well as a general purpose GPS module with RS232 interface. It can also be applied in Automotive navigation, Personal positioning and navigation, Marine navigation, Satellite time correction and etc…


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  • Automotive navigation
  • Personal positioning and navigation
  • Marine navigation
  • Satellite time correction
  • Precise timekeeping and time measurement


  • Support 32-channel GPS and NMEA v0183 v3.01 (Baudrate 9600 bps)
  • Baudrate 9600 bps
  • RS-485 supports DCON protocol
  • RS-232 supports NMEA v0183 v3.01 format or DCON protocol
  • Built-in 1 channel DO, 1 channel PPS(1 pulse per second), 1 RS-485 port, 1 RS-232 port
  • PPS: 100 ms pulse output/sec for precise timekeeping and time measurement
  • 10 ~ 30 VDC – (Power reverse polarity protection)
  • With various system LED indicators
  • DIN Rail design


Digital Output
Output Channel 1 (Sink)
Output Type Non-isolated Open Collector
Output Current 100 mA
Load Voltage +5 VDC~ +30 VDC
GPS Receiver
Chip MediaTek solution
Frequency L1 1575.42 MHz, C/A code
Support Channel 66
Position Accuracy Autonomous (2D RMS)
SBAS 2.5m (depends on accuracy of correction data)
Max. Altitude <18,000 m
Max. Velocity <515 m/s
Acquisition Time Cold Start (Open Sky) = 33 s (typical)
Sensitivity Tracking Up to -165 dBm
Cold start Up to -148 dBm
Protocol Support NMEA 0183 version 3.01 (Baudrate 9600 bps)
GPS Output
1 PPS Pulse per second output (Default 100 ms pulse/sec)
RS-232 Interface GPS information output
LED Indicators
Power/Communication 1 LED
Protection Power reverse polarity protection
Frame Ground Protection Yes
Required Supply Voltage +10 VDC ~ +30 VDC (non-regulated)
Power Consumption 2.5 W
Dimensions (W x H x D) 72 mm x 117 mm x 35 mm
Weight 200 g
Housing Plastic
Operating Temperature -25 °C ~ +75 °C
Storage Temperature -40 °C ~ +80 °C
Humidity 5 ~ 95% RH, non-condensing

Ordering Informations

GPS-721 CR GPS Receiver and 1 DO, 1 PPS Output Module (RoHS)



GPS-721_User Manual_v2.0_EN

GPS-721_Quick Start_v1.5