Balanced XLR
Pin #1 = Shield (Common)
Pin #2 = + (Hot)
Pin #3 = - (Cold)
Phone Plug (TRS) (Balanced)
Tip = + (Hot)
Ring = - (Cold)
Sleeve = Shield
(Available in ¼-inch, 3.5-mm (miniature), and 2.5-mm (subminiature) sizes
Phone Plug (TRS) (Stereo)
Tip = Left Channel
Ring = Right Channel
Sleeve = Common
(Available in ¼-inch, 3.5-mm (miniature), and 2.5-mm (subminiature) sizes
Phone Plug (TR) (Unbalanced)
Tip = + (Hot)
Sleeve = - (Shield)
(Available in ¼-inch, 3.5-mm (miniature), and 2.5-mm (subminiature) sizes
RCA Phono Plug
Tip = + (Hot)
Sleeve = - (Shield)
Amphenol 3-Pin Balanced Microphone Connector
Pin #1 = Shield (Common)
Pin #2 = + (Hot)
Pin #3 = - (Cold)
D-Sub25 Connectors
The D-Sub25 frequently is used for connecting multichannel audio signals. Until the AES59 standard was introduced, manufacturers often used non-standard proprietary connection schemes, many of which are still around. Two of them are shown here, along with the typical analog connection and the AES standard connection scheme.
Modular Phone Jack (RJ11, -48 volt, 2- line system, US)
Position 1 Black = Line #2 + (Common)
Position 2 Red = Line #1 - (Hot)
Position 3 Green = Line #1 + (Common)
Position 4 Yellow = Line #2 - (Hot)
CAT 5 - RJ45 (T-568A)
1 - White Green
2 - Green
3 - Orange white
4 - Blue
5 - White Blue
6 - Orange
7 - White Brown
8 - Brown
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Revised 11/23/2019