From AllPinouts
Connector pinout for: Garmin GPS Rino

4 pin Rino special connector at the GPS unit.
This connector is available on Garmin Rino 110, 120, 130 GPS.
| Pin
| Signal
| Description
|
| 1
| Power in
| 4.5 VDC, 0.5A max
|
| 2
| Data in
| RS232 Rx
|
| 3
| Data out
| RS232 Tx
|
| 4
| GND
|
|
Notes
- May be connected directly to PC serial port
References

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