![]() The signal direction that each wire carries.How many wires are used for the phono plug.When attempting to read a diagram, be sure to take note of the following details: For the most part, images are clear when it comes to identifying plug ends, wire colors, and connection points enabling users to easily hook up the correct jacks and plugs without confusion. Every image strategically shows the arrangement of jacks and connectors, providing general information on how the connections should be made. Reading a phono plug wiring diagram is not overly difficult is the conventions remain consistent. With an understanding of the wiring connections involved, users can identify what type of phono plug is being used, the number of wires present, the direction and capability of each wire, and the type of connections to prevent any confusion along the way. This guide can be beneficial for both professional and amateur sound engineers, as well as anyone needing to connect components for their audio equipment. The phono plug wiring diagram provides a detailed look at how all the wires and connections are linked up together. A phono plug wiring diagram can be used to help you understand just how all these connections are made and why certain plugs and connections are better suited than others. But when it comes to connecting jacks and plugs, things can get a lot more complicated. Standard speaker cables, for example, allow for a great sound when connected with the appropriate amplifier. It briefly touches on the one-end-open shielding application.Having a good sound setup can make all the difference in an audio system. I didn't invent the concept, it's older than I am, but I do prescribe to it 100% I guess we should agree to disagree on this one.Įdit to add: That Analog Devices paper is great, and if you back up from page 15 you referenced, read the bottom of page 12 through page 13. ![]() In a nutshell, I agree with the concept that a shield drain wire terminated at both ends becomes a current carrying conductor, inducing unwanted voltage on the conductors it is meant to protect, and a shield allowed to "float" at both ends does nothing at all. I just happen to reside in the camp of people that follow the one-end-open shielding philosophy for unbalanced interconnects. It's a common practice to terminate only one end of the shield drain wire of each section of cable, so that the captured stray influences are taken to ground at one place only. In live sound and sound reinforcement applications, multiple sections of cable, many unbalanced, are used for low-level analog signals which pass through multiple components, effect racks, and the console itself. Induced voltages are a real threat to low-level analog signals run over long distances in parallel with higher voltage and higher current-carrying wires, that is one of the main reasons shielding exists. If the ground points are not at the same potential, current can flow in the drain wire, which is in contact with the shield, inducing voltages on the conductors inside the shield. If the shield drain wire were grounded at both ends, that provides a path for current to flow between the two ground points. The result is protection from induced voltages on the conductors inside the shield, something a shield connected at both ends will not do with an unbalanced connection. That way all of the captured signals are "drained" to ground at one point. ![]() I was told the application has something to do with differential amplifiers used in 12V car systems.ĭuring training on unbalanced shielded interconnects, I was taught that a true shield captures the stray EMI and RFI, and to achieve this the bare shield drain wire connected to the shield is grounded at one end of the cable only. For those we use 22AWG solid core silver clad copper twisted pair with foil wrap and attached drain wire. ![]() Our dealer in Indonesia orders 5 meter versions, RCA-RCA, used in audio systems at some high end custom limo shop there he deals with. Come to think of it, I can't recall ever building anything with that wire for totally unbalanced use, maybe a few times for interfacing balanced and unbalanced.Īt Luminous we get custom orders for the shielded version of the Monarch II fairly often, always requesting the drain wire terminated at one end only. Jon, My mention of the twisted pair is only because the OP mentioned having 2 conductor woven shield milspec.
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