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Garmin GTX 327 Installation Manual
Summary of GTX 327
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£ garmin international, inc. 190-00187-02 revision j may 2003 gtx tm 327 transponder installation manual.
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Page a gtx 327 installation manual rev j 190-00187-02 © copyright 1999-2003 garmin ltd. Or its subsidiaries all rights reserved except as expressly provided herein, no part of this manual may be reproduced, copied, transmitted, disseminated, downloaded or stored in any storage medium, for any purpos...
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Gtx 327 installation manual page i 190-00187-02 rev j information subject to export control laws this document may contain information which is subject to the export administration regulations ("ear") issued by the united states department of commerce (15 cfr, chapter vii, subchapter c) and which ma...
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Gtx 327 installation manual page iii 190-00187-02 rev j table of contents paragraph page 1. General description .................................................................................................................1 1.1 introduction............................................................
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Page iv gtx 327 installation manual rev j 190-00187-02 paragraph page 3.3 configuration pages ..............................................................................................................23 3.3.1 display mode page ........................................................................
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Gtx 327 installation manual page v 190-00187-02 rev j list of illustrations figure page 2-1 rf connector assembly .....................................................................................................................10 2-2 dual gtx 327, single encoder, serial input connections...........
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Page vi gtx 327 installation manual rev j 190-00187-02 gtx 327 hardware mod level history the following table identifies hardware modification (mod) levels for the gtx 327 transponder. Mod levels are listed with the associated service bulletin number, service bulletin date, and the purpose of the mo...
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Gtx 327 installation manual page 1 190-00187-02 rev j 1. General description 1.1 introduction this manual describes the physical, mechanical and electrical characteristics, plus the installation requirements and operating instructions for the garmin gtx 327 digital display transponder system. Inform...
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Page 2 gtx 327 installation manual rev j 190-00187-02 • aircraft power input (11 to 33 volts). • aircraft dimming bus input voltage. • aircraft master switch turn-on option. • serial altitude, airdata or gps input. • serial altitude output. 1.5 gtx 327 transponder specifications 1.5.1 transponder sp...
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Gtx 327 installation manual page 3 190-00187-02 rev j 1.5.2 physical characteristics of the gtx 327 specification characteristic bezel height 1.65 inches (41 mm) bezel width 6.25 inches (159 mm) rack height (dimple to dimple) 1.71 inches (43 mm) rack width 6.30 inches (160 mm) depth behind panel wit...
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Page 4 gtx 327 installation manual rev j 190-00187-02 1.7 additional equipment required • antenna sealant - use antenna manufacturer’s instructions, install according to faa ac 43.13-1b and ac 43.13-2a. • cables - the installer will supply all system cables. Cable requirements and fabrication is det...
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Gtx 327 installation manual page 5 190-00187-02 rev j 1.10 limited warranty this garmin product is warranted to be free from defects in materials or workmanship for one year from the date of purchase. Within this period, garmin will at its sole option, repair or replace any components that fail in n...
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Gtx 327 installation manual page 7 190-00187-02 rev j 2. Installation 2.1 introduction this section provides the necessary information for installing the gtx 327 transponder, and where required, optional accessories. Installation of the gtx 327 will differ according to equipment location and other f...
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Page 8 gtx 327 installation manual rev j 190-00187-02 2.3.3 installation approval considerations for pressurized aircraft antenna and cable installations on pressurized cabin aircraft require faa approved installation design and engineering substantiation data whenever such installations incorporate...
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Gtx 327 installation manual page 9 190-00187-02 rev j 2.3.4 antenna cable installation when routing antenna cables, observe the following precautions: • all cable routing should be kept as short as possible and as direct as possible. • avoid sharp bends. • avoid routing cables near power sources (e....
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Page 10 gtx 327 installation manual rev j 190-00187-02 figure 2-1. Rf connector assembly a. Trim coax outer insulation back 0.50”. B. Trim braid (not center conductor or insulation) back 0.25”. C. Strip insulation back 0.12”. Note place the ferrule over the coax braid, flush against the coax outer i...
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Gtx 327 installation manual page 11 190-00187-02 rev j 2.4 gtx 327 installation notes avoid installing the unit near heat sources. If this is not possible, ensure that additional cooling is provided. Allow adequate space for installation of cables and connectors. The installer will supply and fabric...
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Page 12 gtx 327 installation manual rev j 190-00187-02 2.6 electrical connections all electrical connections, except for the antenna, are made through a single, 25-pin d subminiature connector. Table 2-4 defines the electrical characteristics of all input and output signals and identifies the cable ...
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Gtx 327 installation manual page 13 190-00187-02 rev j rear connector, j3271 table 2-4. P3271 pin assignments pin description i/o 1 avionics master on in 2 rs-232 in 2 in 3 altitude a1 in 4 altitude c2 in 5 altitude a2 in 6 altitude a4 in 7 altitude c4 in 8 external ident input in 9 altitude b1 in 1...
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Page 14 gtx 327 installation manual rev j 190-00187-02 2.6.1 power and lighting function power input requirements and lighting bus input are listed in the following tables. The power-input pin accepts 11-33 vdc. Switched power out is a power source available for devices such as a remote digital alti...
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Gtx 327 installation manual page 15 190-00187-02 rev j 2.6.2.1 altimeter inputs table 2-7. Encoded altitude pin assignments pin name pin number i/o altitude d4 18 in altitude a1 3 in altitude a2 5 in altitude a4 6 in altitude b1 9 in altitude b2 11 in altitude b4 12 in altitude c1 10 in altitude c2 ...
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Page 16 gtx 327 installation manual rev j 190-00187-02 2.6.2.4 altimeter selection priority the installer must be aware of the gtx 327 priority for selecting encoded altimeter interconnections. The gtx 327 searches in this sequence for altitude, and stops when it finds a valid pressure altitude inpu...
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Gtx 327 installation manual page 17 190-00187-02 rev j 2.6.3 rs-232 serial data electrical characteristics the gtx 327 can be configured to include gps, altitude and airdata data inputs on two rs-232 input lines. Altitude data supplied to the gtx 327 can be output to the 400/500 series garmin produc...
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Gtx 327 installation manual page 19 190-00187-02 rev j 3. Post installation configuration & checkout procedure 3.1 aircraft station licensing requirements the telecommunications act of 1996, effective february 8, 1996, provides the fcc discretion to eliminate radio station license requirements for a...
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Page 20 gtx 327 installation manual rev j 190-00187-02 3.2.1 function selection switches the function selection switches are: • off powers off the gtx 327. Pressing the stby, on or alt key powers on the transponder displaying the last active identification code. • stby selects the standby mode. ...
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Gtx 327 installation manual page 21 190-00187-02 rev j • func changes the page shown on the right side of the display. Display data includes pressure altitude, flight time, count up and count down timers. In the configuration mode, steps through the function pages. Pressure alt: displays the altit...
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Page 22 gtx 327 installation manual rev j 190-00187-02 3.2.2 function display pressure alt displays the altitude data supplied to the gtx 327 in feet, hundreds of feet (i.E., flight level), or meters, depending on configuration. Flight time displays the flight time, controlled by the start/stop key ...
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Gtx 327 installation manual page 23 190-00187-02 rev j 3.2.3 code selection code selection is done with eight keys (0 - 7) that provide 4,096 active identification codes. Pushing one of these keys begins the code selection sequence. The new code is not activated until the fourth digit is entered. Pr...
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Page 24 gtx 327 installation manual rev j 190-00187-02 3.3.1 display mode page display mode selection description auto (automatic) default. The display will automatically change between positive mode (during the day) and negative mode (at night), depending on the ambient light level received by the ...
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Gtx 327 installation manual page 25 190-00187-02 rev j bklt srce (backlight source) (auto only) selection description photo (photocell) default. Backlight level is determined by the ambient light level as measured by the photocell on the gtx 327. 14v backlight level tracks a 14 volt dc aircraft ligh...
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Page 26 gtx 327 installation manual rev j 190-00187-02 rsp time (response time) sets the speed with which the brightness responds to ambient light changes (only for auto key lighting mode). The higher the number, the slower the key lighting responds. This field has a range of 3 to 7, and is set to 4...
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Gtx 327 installation manual page 27 190-00187-02 rev j 3.3.4 contrast configuration page contrast mode selection description man (manual) the display contrast is manually adjusted either here or by the pilot using the gtx 327 contrast page. Auto (automatic) default. The display contrast is automatic...
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Page 28 gtx 327 installation manual rev j 190-00187-02 3.3.5 rs-232 input/output page this is the electrical source for the gtx 327 altitude and gps data input. Refer to paragraph 2.6.2.4 for altimeter data selection priority. Rs-232 input (altitude source, gps data) selection description off defaul...
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Gtx 327 installation manual page 29 190-00187-02 rev j 3.3.6 operation configuration pages 3.3.6.1 first configuration page vs rate (vertical speed rate) this field is the typical vertical speed for climb/descent of the aircraft. This number determines when a climb or descent arrow is displayed on t...
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Page 30 gtx 327 installation manual rev j 190-00187-02 3.3.6.2 second configuration page squat switch the gtx 327 flight time may be based on the squat switch state. The squat switch field may be set to either yes or no. (default no). If yes, sense may be set to high or low. If set to no, airborne s...
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Gtx 327 installation manual page 31 190-00187-02 rev j 3.3.7 aircraft type page selection description ac type unknown, =15.5k, or rotor. Aircraft type used for automated airborne determination (time to stby, required airspeed, ground speed). Sets the aircraft type to rotor, to a weight of less than ...
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Page 32 gtx 327 installation manual rev j 190-00187-02 3.3.10 external switch page displays the state of the external switch discrete inputs. Ident displays the state of the external ident discrete input. The box is filled when external ident is grounded. Standby displays the state of the external s...
Page 41: Appendix A
Gtx 327 installation manual page 33 190-00187-02 rev j appendix a certification documents a.1 continued airworthiness other than for regulatory periodic functional checks, maintenance of the gtx 327 is “on condition” only. Refer to the gtx 327 maintenance manual. Periodic maintenance of the gtx 327 ...
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Page 34 gtx 327 installation manual rev j 190-00187-02 3. Control, operation information refer to the gtx 327 pilot’s guide, garmin p/n 190-00187-00. 4. Servicing information n/a 5. Maintenance instructions maintenance of the gtx 327 is ‘on condition’ only. Periodic maintenance is not required. Refe...
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Gtx 327 installation manual page 35 190-00187-02 rev j 16. Revision to revise this ica, a letter must be submitted to the local fsdo with a copy of the revised faa form 337, and revised ica. The faa inspector accepts the change by signing block 3 and including the following statement: “the attached ...
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Page 36 gtx 327 installation manual rev j 190-00187-02 a.2 environmental qualification form nomenclature: gtx 327 airborne atc transponder equipment type/model/part no.: 010-00188-( ), which includes 011-00490-( ) tso/jtso compliance: tso - c74c class 1a, jtso - c74c class 1a manufacturer's specific...
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Gtx 327 installation manual page 37 190-00187-02 rev j conditions rtca do-160d section description of conducted tests explosion 9.0 equipment identified as category x, no test required waterproofness 10.0 equipment identified as category x, no test required fluids susceptibility 11.0 equipment ident...
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Page 47: Appendix B
Gtx 327 installation manual page 39 190-00187-02 rev j appendix b assembly and installation drawings b.1 general this section contains the following installation drawings: • b1, gtx 327 outline drawing • b2, gtx 327 connector/rack kit assembly drawing • b3, gtx 327 recommended panel cutout dimension...
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Gtx 327 in stallatio n manu al pag e 41 ( p ag e 42 blan k) 190- 001 87 -02 rev j figure b 1. Gtx 327 out line drawing.
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Gtx 327 in stallatio n manu al pag e 43 ( p ag e 44 blan k) 190- 001 87 -02 rev j figure b2. Gtx 327 connector/rack kit assembly drawing see note see note these holes not used note: kit will include either item 6 or item 12. Refer to secti on 2 for additional information. Ite m p art n um be r d es ...
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Gtx 327 in stallatio n manu al pag e 45 ( p ag e 46 blan k) 190- 001 87 -02 rev j figure b 3 gtx 327 recomme nde d panel cut o ut dime ns ions.
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Gtx 327 in stallatio n manu al pag e 47 ( p ag e 48 blan k) 190- 001 87 -02 rev j figure b 4 gtx 32 t y pi cal interconnect wir ing diagram.
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Gtx 327 in stallatio n manu al pag e 49 ( p ag e 50 blan k) 190- 001 87 -02 rev j fig ur e b5 du al tx p in tercon n ect w iri ng d iag ra m, en cod ing alti tud e co nn ecti on s.
Page 54: Appendix C
Gtx 327 installation manual page 51 190-00187-02 rev j appendix c stc permission consistent with n8110.69 or order 8110.4, aviation authority approved installers are hereby granted permission to use stc #sa00870wi data to modify aircraft..
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Page 52 gtx 327 installation manual rev j 190-00187-02.