Datasheet

ENTERTAINMENT INTERCONNECT CATALOGUE - Amphenol Australia Pty Ltd Telephone [phone] Fax [phone]
www.amphenolaudio.com
139
XLR (Microphone / Patch Cables)
The standard XLR 3 contact pin outs are as shown above for a balanced lead. In such a configuration
audio “Hot” (pin 2) is the in-phase connection whilst audio “Cold” (pin 3) is the out-of-phase connection.
For an unbalanced lead however, you may connect pin 1 to either pin 2 or pin 3, but not both. In such a
configuration the remaining pin is used for the audio signal.
When terminating the cable shielding to pin 1 it is suggested that the shield be only grounded at one end
of the cable to avoid inducing “hum”. Pin 1 is a leading contact that engages at interconnection, before pin
2 or pin 3.
1/4” Phono (6.35mm) (Standard Applications)
MICROPHONE CABLE - BALANCED MICROPHONE CABLE - UNBALANCED
INSTRUMENT / LINE CABLE (MONO) INSTRUMENT / LINE CABLE (STEREO)
AC SERIES PANEL
MOUNT CONNECTORS
THERMOPLASTIC TYPE
CONNECTOR WIRING INFORMATION