XLR (cable type)

XLR is the industry standard for audio connections. While mostly used for microphone lines, there are many different uses for XLR cable.

Color Guidelines
Certain colors of cable MUST be used for certain applications, because the color of the cable can drastically change the impedance. Here is a chart of color guidelines. Remember you CANNOT use the wrong color for your application, or else you risk explosion.

Microphone - Black

Com - Purple

Lighting (DMX) - Blue

Soldering
When soldering XLR, remember that Pin 1 is ground and hot, Pin 2 is hot and cold, and Pin 3 is only hot. Also, remember to solder jumpers between all three pins so the signal can freely flow.