190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X InstallationRev. AA Page 6-26.1.1 Navigation Functions• Display of position and ground speed• Display of stored navigation and map databases• Area navigation functions using the determined position/velocity and stored navigation data• Advisory approach navigation functions and associated databases• Display of flight plan and navigation from an external GPS navigator• Display of navigation data from an external VOR/ILS NAV radio6.1.2 Interface SummaryNOTEA G3X system installation can use either GDU 37X or GDU 45X/46X displays, but a G3Xsystem installation cannot use GDU 37X and GDU 45X/46X displays.The GDU 37X use CAN and RS-232 communications interfaces. The GDU 37X can be configured tocommunicate directly with the following Garmin LRUs:GAD 29 GDL 39/GDL 39ROther GDU 37X GEA 24GI 260 GMC 305GNS 400/500 Series Units GNS 480GSA 28 GSU 25GSU 73 GTN 600/700 Series UnitsGTR/GNC series units SL30 Nav/Comm TransceiverSL40 Comm Transceiver6.2 General SpecificationsSee Section 2.2 for power/current specifications, and Section 2.4.1 for dimension/weight specifications.6.3 Installation Information6.3.1 Required EquipmentEach of the following accessories is provided with the GDU 37X unit (Table 1-9). The connector kit isrequired to install the unit (Figure 6-2). The GDU 37X Nut Plate (Figure 6-2) is included in theinstallation kit for use when it is not possible to tap the instrument panel for 6-32 screw threads.The contents of the GDU 37X Connector Kit are listed in Table 6-1. One kit is required for eachGDU 37X installed.Table 6-1 Contents of GDU 37X Connector Kit (011-01921-00)*Item Garmin P/N QuantitySub-Assy, bkshl w/Hdw, Jackscrew 011-01855-04 1Conn, Rcpt, D-Sub, Crimp Socket 330-00625-50 1Contact, Sckt, D-Sub, Crimp, Size 20 336-00094-00 20
