Matronics Email Lists :: View topic - Wiring install 327/navwork/encoder

Matronics Email Lists
Web Forum Interface to the Matronics Email Lists

Get Email Distribution Too! FAQ Search Memberlist Usergroups Register

Profile Log in to check your private messages Log in

Wiring install 327/navwork/encoder

Matronics Email Lists Forum Index -> AeroElectric-List

View previous topic :: View next topic

Author Message

class4sanger

Joined: 08 Oct 2016
Posts: 2

Posted: Sat Oct 08, 2016 11:02 am Post subject: Wiring install 327/navwork/encoder

Loose pin in the 327 connector or something fried my 327. Now I am paranoid about putting in a new one. Questions??? on the 327 pin 13 and 25 are the same ground? 13 shows power and 25 shows signal ground? Arent they the same thing? Do both need to be grounded? navworx wants to be connected to 13, so is that tied into the pin or just grounded at same location? navworx also wants altitude ground to pin 13 or 25, again tied into pin or just grounded at same location?



Thanks

Keith

- The Matronics AeroElectric-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?AeroElectric-List

class4sanger

Joined: 08 Oct 2016
Posts: 2

Posted: Sat Oct 08, 2016 12:00 pm Post subject: Re: Wiring install 327/navwork/encoder

I think I figured it out after talking to some folks. But more important. If the navworx wants to connect on the garmin 327 ground pin 13, where would you tie that in? Awful hard to get 2 wires into a small dsub pin. Splice after the connector?

- The Matronics AeroElectric-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?AeroElectric-List

Tim Olson

Joined: 25 Jan 2007
Posts: 2879

Posted: Sat Oct 08, 2016 3:21 pm Post subject: Wiring install 327/navwork/encoder

I'm sure they are both at the same ground potential, but I would put any

wires carrying higher current on that Pin 13 since that's the power ground.

For a signal ground like the RS232 running to NavWorX, it won't matter

which ground you attach it to.  In fact, not that I'd recommend this, but,

if all of your avionics are grounded to the same ground point, it is fairly

likely that most of the RS232 signals would talk even if you left the

signal ground wires off, simply due to the fact that most of the systems 

will

have the signal ground tied to the same ground potential as the

power ground.  But again, I'm not recommending that, just saying that

in theory it would probably work without it.  The signal isn't carrying

much current so either pin will be OK for the signal ground in your

case.  That doesn't mean the pins are the same, so when connecting the

system power and ground, use the pins that are specified for that purpose.



Tim



On 10/8/2016 2:02 PM, class4sanger wrote:

 	  Quote: 	
		   



 Loose pin in the 327 connector or something fried my 327. Now I am paranoid about putting in a new one. Questions??? on the 327 pin 13 and 25 are the same ground? 13 shows power and 25 shows signal ground? Arent they the same thing? Do both need to be grounded? navworx wants to be connected to 13, so is that tied into the pin or just grounded at same location? navworx also wants altitude ground to pin 13 or 25, again tied into pin or just grounded at same location?



 Thanks

 Keith

- The Matronics AeroElectric-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?AeroElectric-List

Display posts from previous:

	Matronics Email Lists Forum Index -> AeroElectric-List	All times are GMT - 8 Hours
Page 1 of 1

Jump to:

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum