The pin out will be different depending on if you are using NMEA0183 or NMEA2000. Below is a link to the "Operator's Manual" for the GP330B.
See page 28 of 33 / S-1. This is the wiring diagram for the GP330B.
The pin out will be different depending on if you are using NMEA0182 or NMEA2000. Below is a link to the "Operator's Manual" for the GP330B.
See page 28 of 33 / S-1. This is the wiring diagram for the GP330B.
Then use this document that is placed under the product at our website. it provides the pin numbers as you look at the connector end. It also shows the dimple that designates the number 1 pin.
Then use this document that is placed under the product at our website. it provides the pin numbers as you look at the connector end. It also shows the dimple that designates the number 1 pin.