M900 GNSS Receiver User Guide
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8
Radio port
Connect to radio antenna
9
GNSS Antenna Connector 1
Connect to the master GNSS antenna
10
GNSS Antenna Connector 2
Connect to the slave GNSS antenna
11
GPRS antenna connector
Connect to 4G GPRS antenna
3.2 Guidelines
Please follow these guidelines when setting up your receiver.
3.2.1 Environmental requirements
To keep the receiver with a reliable performance, it is better to use the receiver in
safe environmental conditions.
• Operating temperature: -40°C to +75°C
• Out of corrosive fluids and gases
3.2.2 Power Supply
The M900 GNSS receiver has no built-in battery, which only can work with an extra
power supply. The proper voltage range is from 5VDC to 27VDC. Power supply is
connected through 7-pin Lemo to RS232 Cable (as the picture below):
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