Installation Guide Instruction Manual
 Appendix 
FlightDEK-D180 Installation Guide    9-11 
Pinouts and Function Description 
Below are the pinouts and function descriptions for the HS34’s male and female connectors. At a 
mini n in the Universal Connections diagram. All mum, you must make the connections show
other wiring connections depend on the external equipm
ent you are connecting to the HS34. 
Many common radio and GPS connections are depicted in the Common Device Connections 
section below. Note that the pin num
bers are labeled on the face of both the female and male 
connector. 
Male (on HS34) DB25  Female (on HS34) DB25 
Pin#  Function  Pin#  Function 
1 
Serial 1 RX (PC updates & second 
serial port) 
1 
CDI + when deflected right 
2  Serial 2 RX (SL30, GPS, etc)  2  VOR + when TO flag shown 
3 DSAB A  3  LOC + 
4 
M  
max V) 
aster Power (10-30V, 250 mA
imum at 12
4 
GS + when up UP 
5 
GP Output 1 (not currently 
supported) 
5 
GS + when FLAG shown 
6 
GP Output 2 (not currently 
supported) 
6 
DME Analog IN (0-8V, 
40mv/NM) 
7  G  P 1 in (same as EMS GP in) 7  Resolver G 
8  GP 2 in ( S GP in) same as EM 8  Resolver D 
9  +5V out  9  Resolver F 
10 
GP 6 in (+15V GP in, not currently 
supported) 
ARINC 429 RX 2 B 
10 
11 
GP 5 in (+15V GP in, not currently 
supported) 
11 
ARINC 429 RX 1 B 
12 
GP 4 in (+15V GP in, not currently 
supported ) 
12 
ARINC 429 TX B 
13  GP 3 in (same as EMS GP in)  13  ARINC 429 TX B 
14  Serial 1 TX  14  CDI + when Left 
15  Serial 2 TX  15  VOR  own + when From flag sh
16 DSAB B  16  LOC - 
17  Master Ground  17  GS + when Down 
18  Contact in 4  contacts) GS + when Flag hidden  ( Ssame as EM 18 
19  Contact in  contacts) 3 (same as EMS 19  Resolver C 
20  Contact in 2 (same as EMS contacts) 20  Resolver H 
21  Contact in 1 (same as EMS contacts) 21  Resolver E 
22  Marker Outer Input  22  ARINC 429 RX 2 A 
23  Marker Middle Input  23  ARINC 429 RX 1 A 
24  Marker Inner Input  24  ARINC 429 TX A 
25  Voice audio output (8V peak-peak)  25  ARINC 429 TX A 










