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Discussion Starter · #1 ·
Can someone out there help walk me through connecting the analog audio outs of my receivers to captive screw connectors? I just purchased a rather expensive high bandwidth A/V switcher but instead of RCA connectors for audio i/o, the switcher is equipped with captive screw connectors for this function. I have stared at the illustrations and re-read the instructions found in the owner's manual but still can't make much sense of it.


Thanks very much - RH



http://www.extron.com/product/img-lg...nnector-lg.jpg
 

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Discussion Starter · #2 ·
No takers? Is my question like asking "how do you plug RCA cables into the RCA input of the receiver?".
 

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It either looks like a connector fits over that and snaps in or you would loosen each screw and where the hole is on top insert the stripped wire then tighten the screw down on the wire matching that wire hole. Just a guess from your pic.
 

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They are called Molex connectors and are standard in custom installation applications. The previous poster is correct. You loosen the screws and put your wire into the hole. You then tighten the screw to clap the wire.


(You should twist the bare wires and make sure they are stripped to the right length to prevent and strands from sticking out and causing a short)


Then when your all wired up you snap the connector into the equipment.


If the other end of these wires need to be RCA it is easiest to just cut one end off (of and RCA interconnect) and strip the other that is going into the molex connectors. It will take some practice so leave yourself plenty of length. The center wire goes to the + and - is the outer or shielding. Also make sure that both wires are the same length. Also since the shield (- or outer wire) is not individually insulated like the center wire you should take care to insure that you do tape it or use heat shrink so that it cannot touch anything else (like the center or + wire)


Hope this helps.
 

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Discussion Starter · #5 ·
Great help and thanks very much. I believe however, that the instructions also call for a ground connection along with the + and - .


The audio cable I plan to use have RCA plugs on each end - I snipped off one of the plugs and discovered the it is a coax cable. The coax cable has a copper post, a plastic shield around the copper post, copper strands around the plastic shield and a sysnthetic outer cover around the stranded copper.


Do I put the copper post into the + and the copper strands into the - ? What about a ground? BTW, what should I be trying to achieve; a balanced or unbalanced connection? The cable run is less than four feet.


Also, you are correct. The other side of this gizmo has flat heads that squeeze the wire securely when the screws are tightened - just did not have an available .jpg of the other side.


Thanks once again.


RH
 

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The balanced connection will have plus minus and ground and typically used 3-4 conductor wires with XLR (microphone type) jacks.


If your other equipment is using RCA then unbalanced is what you want. (an RCA cable is unbalanced). In an unbalanced connection there is a + and a ground (no negative connection) so just leave the - unconnected and hook the shield (outer wire) to the ground.
 
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