Installation guide
Appendix C: Wiring and Electrical Connections     
22-16    SkyView System Installation Guide - Revision R 
15 
11-33V DC 
Connect to Aircraft Power 
16 
No Connect 
- 
17 
External Standby 
In 
Optional: Not Commonly Connected 
18 
Mutual 
Suppression 
Optional: Not Commonly Connected 
19 
Squat Switch In 
Optional: Not Commonly Connected 
20 
Ident Switch In 
Optional: Not Commonly Connected 
21 
No Connect 
- 
22 
No Connect 
- 
23 
No Connect 
- 
24 
No Connect 
- 
25 
No Connect 
- 
Table 79 - SV-SPNDR-26X D25 Connector 
SV-XPNDR-261/262 Environmental Qualification Forms 
Nomenclature: 
TT21 Mode S Transponder (Dynon Avionics SV-XPNDR-262) 
Part Number: 00675-(XX) 
ETSO: 2C112b, C166a 
Manufacturer: 
Trig Avionics Limited 
Address: 
Heriot Watt Research Park, Riccarton, Currie, Scotland, EH14 4AP 
Conditions 
DO-160F 
Section 
Description of Conducted Tests 
Temperature and Altitude 
4.0 
Equipment tested to Categories A2, C1 
Low temperature ground survival 
4.5.1 
-55°C 
Low temperature short-time 
operating 
4.5.1 
-40°C 
Low temperature operating 
4.5.2 
-20°C 
High temperature operating 
4.5.4 
+70°C 
High temperature short-time 
operating 
4.5.3 
+70°C 
High temperature ground survival 
4.5.3 
+85°C 
Loss of Cooling 
4.5.5 
Cooling air not required (+70°C operating without cooling air) 
Altitude 
4.6.1 
35,000 feet 
Decompression 
4.6.2 
8,000 to 35,000 feet in 15 seconds 
Overpressure 
4.6.3 
-15,000 feet 
Temperature Variation 
5.0 
Equipment tested to Category C 
Humidity 
6.0 
Equipment tested to Category A 
Operational Shocks 
7.2 
Equipment tested to Category B 
Crash Safety 
7.3 
Equipment tested to Category B type 5 
Vibration 
8.0 
Aircraft zone 2; type 3, 4, 5 to category S level M, type 1 (Helicopters) to 
category U level G 










