From AllPinouts
Connector pinout for: Magellan Meridian GPS

4 pin Magellan connector at the GPS.
This connector is available on Magellan Meridian and 315 GPS units.
| Pin
| Name
| Direction
| Description
|
| 1
| 3.86 V dc
| -
| (do not connect to RS232 12 V DC)
|
| 2
| Data in
| IN
| RS232 RX
|
| 3
| ground
| -
|
|
| 4
| Data out
| OUT
| RS 232 TX
|
References

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