About XLR Pinout (3-Pin, 5-Pin & 7-Pin)
XLR connectors are used in audio (mic level & line level) and DMX lighting control (DMX) applications.
3-Pin XLR and 5-Pin XLR DMX Lighting Pinout
The ESTA standard known as Entertainment Technology USITT DMX512-A – Asynchronous Serial Digital Data Transmission Standard for Controlling Lighting Equipment and Accessories, also known as DMX512-A. DMX512 data are transmitted over a differential pair using EIA-485 voltage levels.
DMX is the primary method for linking controllers, dimmers, advanced fixtures and special effects devices such as foggers and moving lights. A DMX512 controller is connected to fixtures or devices in a daisy-chain link. Each device has a DMX in and generally a DMX out XLR 5 pin connector – sometimes marked as DMX thru. The DMX out on the controller is linked via a DMX512 cable to the DMX in on the first fixture. A second cable then links the DMX out on the first fixture to the next device, and so on – up to 32 devices. In general, the final, empty, DMX out connector should have a DMX512 terminating plug attached into it, which is simply a 120ohm resistor joining pins 2 and 3 of the connector. Many modern devices negate this requirement as they are capable of auto-terminating the link.The DMX connector including 3-pin XLR and 5-pin XLR.
3 Pin XLR connectors are used primarily in lighting control applications as a DMX signal. This DMX specification allows for one channel over the one 3-pin connector. And another DMX specification allows for two completely
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