190-00906-01 GTX 23 Installation ManualRev. C Page 3-13 INSTALLATION PROCEDURE3.1 Unpacking UnitCarefully unpack the equipment and make a visual inspection of the unit for evidence of damage incurredduring shipment. If the unit is damaged, notify the carrier and file a claim. To justify a claim, save theoriginal shipping container and all packing materials. Do not return the unit to Garmin until the carrier hasauthorized the claim.Retain the original shipping containers for storage. If the original containers are not available, a separatecardboard container should be prepared that is large enough to accommodate sufficient packing material toprevent movement.3.2 Wiring Harness InstallationAllow adequate space for installation of cables and connectors. The installer shall supply and fabricate allcables. All electrical connections to the GTX 23 are made through one 62-pin D-subminiature connector.Section 4 defines the electrical characteristics of all input and output signals. Required connectors andassociated hardware are supplied with the connector kit.See Appendix C for examples of interconnect wiring diagrams.CAUTIONCheck wiring connections for errors before inserting the GTX 23 into the rack.Incorrect wiring could cause internal component damage.3.3 Electrical ConnectionsAll electrical connections, except for the antenna and shield ground, are made through a single 62 pinD-subminiature connector (see Figure 4-1). Table 4-1 lists the electrical connections of all input andoutput signals. See Appendix C for interconnect wiring diagrams and cable requirements for each signal.Required connector and associated hardware are supplied in the connector kit (P/N 011-01012-01).CAUTIONCheck wiring connections for errors before inserting the GTX 23 into the rack.Incorrect wiring could cause internal component damage.Table 3-1 Pin Contact Part Numbers (High Density)Manufacturer* 62 pin connector (P2301)18-20 AWG (Power Only) 22-28 AWGGarmin P/N 336-00044-00 336-00021-00Military P/N N/A M39029/58-360*Non-Garmin part numbers shown are not maintained by Garmin and consequently are subject tochange without notice.