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GPS-721-MTRU - GPS Receiver and 1 Do, 1 PPS Output Module, with Modbus RTU
by ICP DAS
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GPS Receiver and 1 DO, 1 PPS Output Module communicable over Modbus RTU over RS-232 and RS-485. Supports operating temperatures from -25°C ~ +75°C
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 The GPS-721-MRTU, 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, Modbus RTU 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…
- Support 66-channel GPS and NMEA v0183 v3.01
- RS-485 supports DCON protocol and Modbus RTU
- RS-232 supports NMEA v0183 v3.01 format, DCON or Modbus RTU 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 |
32 |
| Position Accuracy |
Capable of SBAS (WAAS, EGNOS, MSAS) |
| Max. Altitude |
<18,000 m |
| Max. Velocity |
<515 m/s |
| Acquisition Time |
Cold Start (Open Sky) = 42 s (typical) |
| Sensitivity |
Tracking |
Up to -158 dBm |
| Cold start |
Up to -142 dBm |
| Protocol Support |
NMEA 0183 version 3.01 |
| 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 |
| GPS |
3 LEDs |
| Power |
| Protection |
Power reverse polarity protection |
| Frame Ground Protection |
Yes |
| Required Supply Voltage |
+10 VDC ~ +30 VDC (non-regulated) |
| Power Consumption |
2.5 W |
| Mechanical |
| Dimensions (W x H x D) |
72 mm x 117 mm x 35 mm |
| Weight |
200 g |
| Housing |
Plastic |
| Environmental |
| Operating Temperature |
-25 °C ~ +75 °C |
| Storage Temperature |
-40 °C ~ +80 °C |
| Humidity |
5 ~ 95% RH, non-condensing |
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