Page 4
Left Panel
MIC/LINE XLR Inputs
Channel 1 through 4 XLR transformer balanced audio
inputs. Use individual selector switches located on the underside panel of the unit
to choose mic/line level for each input and to activate/ deac48 volt phantom
power for each input. For any given input, turn off phantom power if not specifically
required by the microphone in use (using the switch on the underside of the unit).
These XLR connectors are wired as follows:
Pin 1:
Ground (shield)
Pin 2:
Hot (in phase)
Pin 3:
Cold (out of phase)
Phantom power for these XLR connectors is wired in the following manner:
Pin 1:
Ground
Pins 2 & 3:
carry 48 volts DC through 6.81K resistors when the particular
input is switched to phantom power using the corresponding switch on the
underside of the product.
