5 pin XLR connector pinout signals @ PinoutGuide.com

at the device (rear view)

The XLR connectors are used mostly in professional audio and video electronics cabling applications. There is no common pinout - it's depends on application

Reverse numbering?

Application	Pin 1	Pin 2	Pin 3	Pin 4	Pin 5	Notes
AVAB	Signal Ground	Data -	Data +	No Connection	No Connection	AVAB Digital protocol 256 Channels
CCT Regal II (Dimmer Control)	0 Volts	DMX Data -	DMX Data +	12V AC Desk Supply from dimmers	No Connection	Using external PSU disconnects Pin4 internally
CCT Regal II (Coloursette Control)	0 Volts	DMX Data -	DMX Data +	12V AC Desk Supply from PSU	No Connection
CMX	Signal Ground	Data -	Data +	No Connection	No Connection	Colortran Digital protocol 512 Channels
DMX512	Screen	Data - Primary	Data + Primary	Data - Secondary	Data + Secondary	USITT digital multiplex - Pins 4&5 have no standard use 512 channels
PMX	Screen	Signal	Signal Earth	No Connection	Power +18-25VDC	Pulsar multiplex Based on EIA-232 standard
SMX	Screen	Data -	Data +	No Connection	No Connection
Strand Colour Call Scroller	DMX OV	DMX +	DMX -	OV Power	+V Power	Early versions used an XLR4 with the screen carrying the +V power
Generic stereo intercom broadcast headset	Mic Screen	Mic Signal	Headphone Screen	Headphone Signal Left	Headphone Signal Right	Used by Clearcom, RTS, Telex Audiocom, Sony, Philips and Ikegami
Broadcast Sound	Screen/GND	Channel 1 Hot	Channel 1 Cold	Channel 2 Hot	Channel 2 Cold	2 Balanced Audio Channels