Camco P.5 Series - Manual (Page 16)

Input
Ground
Lift
Input Ground Lift in position:
grounded
LINK B Input
Channel B
3
 2 2
3
 
3
2 2
3

To
Channel B
To
Channel A
Input
Channel A
LINK A
3 INST
ALL
ATION
USER MANUAL
TECTON POWER AMP SERIES P.4
3.7 Mode Selector
The switch on the rear panel changes the operating mode. Switch the power
switch to the Off position to make changes on the Mode Selector. When the
amplifier is switched on again, the selected mode will operate.
3.8 Wiring
3.8. E.U.I. and XLR Connection
XLR: Pin  = Ground (or lifted via 5 Ω resistor) (See 3.5 Ground Lift)
Pin 2 = Hot (inphase)
Pin 3 = Cold (out of phase)
Always use symmetrical (balanced) shielded cable to connect the amplifier.