 |
Matronics Email Lists
Web Forum Interface to the Matronics Email Lists
|
| View previous topic :: View next topic |
| Author |
Message |
dean.psiropoulos(at)veriz
Guest
|
 Posted: Fri Feb 02, 2007 11:43 pm Post subject: PS6000/UPS AT Audio Panel wiring |
 |
|
Having bought a slow build airplane kit and wanting to do EVERYTHING on the
airplane myself, I'm afraid has brought much frustration. I just spent the
last 2-3 weeks of my spare time (20-30 hours) wiring the bottom connector of
my UPS AT SL-15 audio panel (a PS6000 with UPS AT name plate). Words cannot
describe what frustration that has been. I had to do shield "daisy
chaining" for my VM1000 connectors and that worked out pretty well but this
thing was a real PIA. Not only does one have to daisy chain the shields but
you also have to daisy chain all the low (ground) sides of the
inputs/outputs and crimp them to a single contact.
I'm sorry but if the engineer who had designed this set up would have been
sitting across the table from me these last couple weeks, I would have
choked the life out of him. I used solder sleeves on the shields but that
didn't really help keep me from creating a real mess out of the whole thing.
Then I had to make another rats nest out of the other ground wires so I
could connect them to the common pin. The pins were stamped sheet metal
double crimp contacts and I have an IDEAL crimper with the correct dies but
it still seemed a little week so I ended up soldering them as well. It will
probably work ok but most cables have only 1 wire that actually has a
contact crimped on it and stuffed into the connector block (the unit uses
spring contacts that touch against traces on the circuit board when the box
is pushed into the tray, unlike the rest of the UPS AT stuff that uses easy
to work Dsub connectors and pins that I just had to strip and crimp using
the B&C Dynon install kit). I'm a little worried about mechanical
integrity. There is no way to secure the wires on the back of the unit, the
connector blocks just bolt to the back of the tray and the wires hang off
the end (actually they will lay on top of the GPS/COM tray for a couple
inches before hanging off the end but I'm still worried about the wires
breaking off at the contacts due to vibration, any thoughts here?).
Anyone else had the "pleasure" of wiring one of these pigs? If so, any words
of wisdom or did you end up with a "rats nest" on the connector also?
Interestingly, there is also a top connector to this audio panel which has
NO daisy chaining on those wires whatsoever, each wire has its own contact
that goes into the block (and shields are crimped in together with each
ground wire contact, a really inconsistent design). PS Engineering, if
you're listening I suggest you fire the engineer who did this one, its
pathetic! Ok, enough rant for tonight, but anyone who is electrically
challenged may want to pass on wiring one of these. I'm pretty good at
wiring and really enjoy it but this was a real downer.
Dean
RV-6A, N197DM
Ending wiring, starting electrical checkout
| | - 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 |
|
|
|
| Back to top |
|
 |
ECLarsen81(at)aol.com
Guest
|
| Posted: Sat Feb 03, 2007 9:33 am Post subject: PS6000/UPS AT Audio Panel wiring |
|
|
Not to justify it or condone the wiring method but the reasoning as I was told....
Actually, the messy wiring was developed by King on the KMA24, PS Engineering utilized the same design so the you could pull the block off the KMA (bottom block on the PMA) and build the new intercom block (top) to easily upgrade from the King to a PS6000.
Because of the short runs of wire in the radio stack, a lot of the installers did not use shielded wire in the audio links and did the daisy chain between the low pins, using the ground bar attached to the back of the KMA tray for all the Lo attachments.
I like to add a .032 flap off the back of the tray to mount strain reliefs making it similar to the KMA 26 arraingement.
My 2 cents.
Ed Larsen
[quote][b]
| | - 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 |
|
|
|
| Back to top |
|
|
|
|
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
|
Powered by phpBB © 2001, 2005 phpBB Group
|
Get Email Distribution Too!
FAQ
Search
Memberlist
Usergroups
Register
Profile
Log in to check your private messages
Log in
