This may be a silly question but here it goes. I wired the arinc-429 for a Garmin 430 connection per figure 153 in the manual. I was double checking before installation and noticed that on the pinout pin 20 is a ground. This is not shown on figure 153. Do I need a ground on pin 20? Thanks!
Question arinc-429 wiring
- Thread starter jcarne
- Start date
jnmeade
Active Member
Table 120 - SV-ARINC-429 D25F Connector, page 23-15 manual revision AF shows one.
For my own part, I am not personally knowledgeable.
For my own part, I am not personally knowledgeable.
DBRV10
Active Member
It is there sure enough but in all the GNS, GTN and IFD connections I have done I have never used it.
Well spotted!
Well spotted!
Raymo
I love aviation!
If it were me, I'd ground it per Figure 151. The other figure is only for ARINC to 430.
DBRV10
Active Member
And what did it achieve for you?
Raymo
I love aviation!
I'm not sure about the ARINC signals but the RS232 needs a good reference ground to work properly. Probably more important in a composite plane.
It probably didn't achieve anything per your post above where you say it works fine without it. However, if for some reason it didn't, it achieved me not having to lay under my panel in an uncomfortable position, bloody hands from reaching up to get into the connector and more bloody hands to fish the wire through all my grommets/nutplates to get it to the grounding block. The top skin is still off right now but not for long. What you can't see in the picture is all the goodies down below the arinc that my hands would have to get past.
(if anyone is wondering the big coil of wires on the left is for a future HDX if needed)
(if anyone is wondering the big coil of wires on the left is for a future HDX if needed)