Installation Guide Instruction Manual
Wiring Overview     
2-8    FlightDEK-D180 Installation Guide 
The pin assignments for the female 37-pin harness are repeated below. Note that the pin numbers 
are labeled on the face of both the female and male connector. Each connection on the harness 
supplied by Dynon is color-coded. These colors are listed in the following chart. 
DB37 harness 
Pin# 
Dynon Harness 
Wire color 
Function  Details 
1 Red 
Do not connect 
2 Yellow 
Do not connect 
3 Black  Ground  Page 2-2 
4  Purple/blue  GP 1 (general purpose resistive)  Page 3-13 
5 Black  Ground  Page 2-2 
6 White/yellow  Oil pressure  Page 3-6 
7 White/brown  Oil temperature  Page 3-7 
8 Brown  Fuel pressure  Page 3-7 
9 Brown/blue  Contact 1  Page 3-18 
10 Brown/yellow  Contact 2  Page 3-18 
11 
Orange  FlightDEK-D180 Transmit / PC Serial 
Receive (RS-232) – EMS logging only 
Page 4-5 
12 
Yellow  FlightDEK-D180 Receive / PC Serial 
Transmit (RS-232) – EMS logging only 
Page 4-5 
13  Black  Ground (Fuel Flow)  Page 3-9 
14  Yellow  Fuel flow input  Page 3-9 
15  Red  Fuel flow power (12V)  Page 3-9 
16 Black  Ground  Page 2-2 
17 Black  Ground  Page 2-2 
18  White/red  5V excitation circuit  Page 2-3 
19 White/black Auxiliary Serial Receive (RS-232)  Page 4-6 
20  Orange/brown  Fuel level 1  Page 3-11 
21  Orange/blue  Fuel level 2  Page 3-11 
22  Purple/yellow  GP 2 (General Purpose Resistive)  Page 3-13 
23  Purple/green  GP 3 (General Purpose Resistive)  Page 3-13 
24 Orange/green  Amps High  Page 3-12 
25 Orange/purple  Amps Low  Page 3-12 
26 Green/red  Manifold pressure  Page 3-5 
27 
Not supplied 
General purpose thermocouple (J or K-type)  Page 3-19 
28 
Not supplied 
General purpose thermocouple (J or K-type)  Page 3-19 
29  Yellow/green  External warning light  Page 4-10 
30  Black  PC Serial ground – EMS logging only  Page 4-5 
31  White/orange  Intercom audio alert  Page 4-10 
32 White/green  RPM left  Page 3-4 
33 White/blue  RPM right  Page 3-4 
34 Blue 
Do not connect 
35 Green 
Do not connect 
36 Blue 
Do not connect 
37 Green 
Do not connect 










