SECTION THREE - Interfacing961 INSTALLATION MANUAL Revision A Page 45SECTION THREE - InterfacingThis chapter includes the information needed to interface the 961 toother equipment on the vessel. Major topics include:• interfacing the unit• setting PPNM• configuring the NMEA output ports• setting the auxiliary portInterfacing the unitThe unit is easily interfaced to other equipment as described below.NMEA 0183 is the most common interface data format used with installa-tions, and it is a widely-accepted standard of data transfer between mostall types of marine electronics today, enabling completely different instru-ments to “speak” a common language.The unit has the following ports:• three bi-directional NMEA input/output ports• one bi-directional auxiliary (aux) port that you can use for commu-nicating data to or from other instruments.Connector pinwiringA list of wire designations for the interface connector is displayed on theunit’s PORT SETUP screen, accessed from the SERVICE MENU screen bypressing the PORT SETUP key.Figure 23: Interface cabling wiring screen