D-subminiature crimp contacts and tools -2, Homemade wire harness considerations -2 – Dynon Avionics SkyView System Installation Guide User Manual

Page 360

Advertising
background image

Appendix C: Wiring and Electrical Connections

22-2

SkyView System Installation Guide - Revision S

D-subminiature Crimp Contacts and Tools

D-subminiature crimp contacts can be obtained from a variety of sources. Dynon recommends
the use of the following Mil Spec types in avionics applications.

Gender

Mil Spec #

Wire AWG

Female/Socket

M39029/63-368

20, 22, 24

Male/Pin

M39029/64-369

Table 72 – Recommended D-subminiature Crimp Pins

Use a high quality 4-way indentation contact crimper when working the Mil Spec contacts in
Table 72. Paladin Tools P/N 1440 (for 20 to 26 AWG wire) is an example of such a contact
crimper tool.

Homemade Wire Harness Considerations

Each SkyView display includes its own wire harness (SV-HARNESS-D37) for connection to power,
serial ports, USB, the external battery, and other connections. We recommend that you use this
harness for display installations instead of building your own.

Here are some considerations if you build your own SkyView network wire harnesses.

Wire Insulation

We recommend that all wire harness wires that are installed in aircraft utilize Tefzel® insulation.

Wire Size

We recommend that all wire harness wires be 22 AWG unless otherwise specified.

Twisted Pairs

SkyView Network cables use twisted data wire pairs for communication between devices. The
wire pair should be twisted at 8-10 twists per foot over the entire length of the cable.

Pair #1:

9-Pin Connector

Pin #

Wire Color

(Dynon Convention)

Signal Name

1

Green

Data 1A

6

Blue

Data 1B

Pair #2:

Advertising