----------------------------------------------------------
                           AeroElectric-List Digest Archive
                                      ---
                     Total Messages Posted Sat 07/10/10: 2
           ----------------------------------------------------------
 
 
Today's Message Index:
----------------------
 
     1. 05:57 AM - Re: Long and short hot feeders  (user9253)
     2. 06:10 PM - Re: Re: Headset and mic shield question  (Robert L. Nuckolls, III)
 
 
 
________________________________  Message 1  _____________________________________


Time: 05:57:22 AM PST US
Subject: AeroElectric-List: Re: Long and short hot feeders
From: "user9253" <fran4sew@banyanol.com>


DCS317,

> this means a 7 foot always hot lead.  Should I be  concerned?
> 

No.  Every time the master switch is turned on, it shorts this wire to ground.
If this wire is accidentally shorted to ground, the main contactor coil restricts
the current flow.  The contactor will energize and you will lose the ability
to shut it off.  The danger of fire or smoke is minimal.  If installed with
secure terminations and care to prevent mechanical damage, then there should
be no problem.
Joe

--------
Joe Gores


Read this topic online here:

http://forums.matronics.com/viewtopic.php?p=304388#304388


________________________________  Message 2  _____________________________________


Time: 06:10:22 PM PST US
From: "Robert L. Nuckolls, III" <nuckolls.bob@aeroelectric.com>
Subject: Re: AeroElectric-List: Re: Headset and mic shield question


At 03:16 PM 7/5/2010, you wrote:
><rparigor@suffolk.lib.ny.us>
>
>Hi Bob
>
>I have a PS Engineering PMA 4000.
>See:
>Page #21:
>http://www.ps-engineering.com/docs/PMA4000_IM.pdf
>
>Each 2 or 3 conductor cable has the shield connected to a different 
>pin on the 25 pinb P1 Bottom Unit Connector.
>
>If pin 1, 2 , 6 and 7 were to touch each other at my D-sub 
>connector, what trouble (if any) might that cause?

   None. All their shields are open at the far end, i.e.
   only shields and not part of the audio path. "audio LO"
   connections in virtually all such systems is a common
   signal ground.

   Bob . . .


 

-------------------------------------------------------------------------------------
                       Other Matronics Email List Services
-------------------------------------------------------------------------------------
Post A New Message               aeroelectric-list@matronics.com
UN/SUBSCRIBE                     http://www.matronics.com/subscription
List FAQ                         http://www.matronics.com/FAQ/AeroElectric-List.htm
Web Forum Interface To Lists     http://forums.matronics.com
Matronics List Wiki              http://wiki.matronics.com
Full Archive Search Engine       http://www.matronics.com/search
7-Day List Browse                http://www.matronics.com/browse/aeroelectric-list
Browse Digests                   http://www.matronics.com/digest/aeroelectric-list
Browse Other Lists               http://www.matronics.com/browse
Live Online Chat!                http://www.matronics.com/chat
Archive Downloading              http://www.matronics.com/archives
Photo Share                      http://www.matronics.com/photoshare
Other Email Lists                http://www.matronics.com/emaillists
Contributions                    http://www.matronics.com/contribution
-------------------------------------------------------------------------------------

These Email List Services are sponsored solely by Matronics and through the 
generous Contributions of its members.