MAINTENANCE MANUAL
STORM Century S-LSA
STORM Century S-LSA
STORMAIRCRAFT
8.4 TRANSPONDER
GARMIN GTX-320A TRANSPONDER DESCRIPTION
ELECTRICAL CONNECTIONS
All electrical connections, except for the antenna, are made through a single, 25 pin, D
subminiature connector. Figure 2-1 defines the electrical characteristics of all input and output
signals and identifies the cable requirements for each signal. Required connector and associated
hardware are supplied in the installation kit (P/N 010-10160-00). See figures B4 and B5 for
interconnect wiring diagrams.
Larger pins are supplied for the connector to provide power and ground at pins 13, 14, 15, and 25
when required. Refer to Figure B4, Note 3.
Pin Contact Part Numbers
25 pin connector (P102)
Wire Gauge
18 AWG
20-24 AWG
GARMIN P/N
336-00023-00 336-00022-00
Military P/N
N/A M39029/63-368
AMP
N/A 205090-1
Positronic
FC6018D M39029/63-368
ITT Cannon
See Note 3
031-1007-042
Recommended Crimp Tools
Wire Gauae
18 AWG
20-24 AWG
Hand Crimping
Tool
Positioner
Insertion/
Extraction Tool
Positioner
Insertion/
Extraction Tool
Military P/N
M22520/2-01 N/A
M81969/1-02 M22520/2-08
M81969/1-02
Positronic 9507 9502-11
M81969/1-02 9502-5 M81969/1-02
ITT Cannon
995-0001-584
N/A
N/A
995-0001-604
980-2000-426
AMP 601966-1
N/A N/A 601966-5
91067-2
Daniels AFM8 K774 M24308/1-02 K13-1 M24308/1-02
Astro 615717
N/A
M81969/1-02 615724 M81969/1-02
NOTES
1.
Insertion/extraction tools from ITT Cannon are all plastic; others are plastic with metal tip.
2.
Non-GARMIN part numbers shown are not maintained by GARMIN and consequently
are subject to change without notice.
3.
Alternate contacts for 18 AWG wire: As an alternative to the Positronic contacts listed
(and provided in the installation kit), the installer may use contacts made by ITT Cannon
under P/N 031-1007-001. These contacts require the use of a different crimp tool
positioner than shown in the table, with the part numbers as follows: Daniels P/N K250,
Astro P/N 616245, or ITT Cannon P/N 980-0005-722.
4.
All wires must be passed through the backshell before being assembled to connector.
5.
In aircraft equipped with a dropping resistor for +28 VDC buss voltage, make sure
the dropping resistor is bypassed.