Today's Message Index:
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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
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| Subject: | Re: Long and short hot feeders |
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
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| Subject: | 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 . . .
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