6/18/2009
2
2. Connections
2.1 Power supply
The 2.1 mm power jack on the back of the unit accepts a clean DC voltage for powering and/or
charging. The polarity can be switched without damaging the mixer.
Input voltage: 18 VDC
Minimum input current: 1000 mA
! Caution: Voltages above the recommended supply voltage can damage the device.
2.2 Audio inputs
The mixer has four balanced XLR3 female sockets for mic or line level signals.
The pin configuration of the analog inputs is shown in
table 2.1
.
Table 2.1
Balanced analog audio input
Connector type
XLR Female
Ground
Pin 1
Hot
Pin 2
Cold
Pin 3
In case a line level signal is connected, make sure the 48V front panel switch is set to OFF (mid
position).
For an unbalanced line level signal connect in accordance with
table 2.2.
Table 2.2
2.3 Audio outputs
There are two balanced XLR3 male sockets for line level outputs.
The pin configuration of the analog outputs is shown in
table 2.3.
Table 2.3
Balanced analog audio output
Connector type
XLR Male
Ground
Pin 1
Hot
Pin 2
Cold
Pin 3
Unbalanced analog audio input
Connector type
XLR Female
Ground
Pin 1
Signal
Pin 2
Ground
Pin 3