Page 4-18 400W Series Installation ManualRev. G 190-00356-024.8 VOR/ILS Indicator (GNS 430W Only)4.8.1 VOR/ILS Indicator FunctionNOTEBecause the GNS 430W includes a “CDI” button that performs switching between GPSand VOR/ILS on a remote indicator, it is seldom necessary to use these outputs to drivean indicator. It is only necessary when it is desired for a separate indicator to displayVOR/ILS deviation full-time (regardless of the “CDI” button status).The VOR/ILS indicator displays both lateral and vertical, To/From indications, lateral and vertical flagsand superflags. GNS 430W connector P4006 always outputs the VOR/Localizer/Glideslope navigationinformation. The VOR/ILS pins on GNS 430W connector P4006 are used to drive an indicator thatdisplays VOR/ILS information at all times, regardless of the CDI selection on the GNS 430W.VOR/LOC COMPOSITE OUT is a standard VOR/Localizer Composite output signal which may be usedto drive the Left/Right, TO/FROM, and Flag indications of certain navigation indicators that contain aninternal converter.The ILS ENERGIZE output goes low when the VLOC frequency is channeled to a localizer channel.4.8.2 VOR/ILS Indicator Electrical Characteristics4.8.2.1 SuperflagsPin Name Connector Pin I/OVOR/LOC SUPERFLAG P4006 15 OutGLIDESLOPE SUPERFLAG P4006 38 OutThe output supplies not less than 500 mA on a 28 volt system and 250 mA on a 14 volt system with theoutput voltage not less than (AIRCRAFT POWER - 3 VDC) when the flag is to be OUT OF VIEW. Theoutput voltage with respect to ground is less than 3 VDC when the flag is to be IN VIEW.4.8.2.2 DeviationPin Name Connector Pin I/OVOR/LOC +LEFT P4006 5 OutVOR/LOC +RIGHT (VOR/LOC COMMON) P4006 6 OutGLIDESLOPE +UP P4006 32 OutGLIDESLOPE +DOWN/-FLAG (GLIDESLOPECOMMON)P4006 31 OutThe deviation outputs are each capable of driving up to three 1000 Ω meter loads with ±150 mVDC±10% with respect to 2.5V Common for full-scale deflection. The drive circuit provides for more thanfull-scale deflection with a maximum course deviation output voltage of ±300 mVDC ±10%.4.8.2.3 TO/FROMPin Name Connector Pin I/OVOR/LOC +TO P4006 1 OutVOR/LOC +FROM (VOR/LOC COMMON) P4006 2 OutThe output is capable of driving up to three 200 Ω meter loads. When indicating TO, the output is +225±75 mVDC. When indicating FROM, output is -225 ±75 mVDC. When invalid information is present(Flag IN VIEW) the TO/FROM output is 0 ±10 mVDC.
