Behringer Ultralink Pro MX882 User Manual page 9

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Output
Pin 1
2
Pin 2 = (+) Signal
Pin 3 = (-) Signal
Fig. 3.1: Compensation of interference with balanced connections
Unbalanced use of
mono 1/4" jack plugs
Tip =
Signal
Sleeve =
Ground / Shield
Tip
Sleeve
Strain relief clamp
Input
Cable
1
Shield
(+) Signal + Hum
(-) Signal + Hum
3
RFI and Hum
Balanced use with XLR connectors
2 1
1 = Ground / Shield
2 = hot (+ve)
3 = cold (-ve)
3
For unbalanced use pin 1 and pin 3 have to be bridged
Fig. 3.2: Different plug types
Input
Ground
1 2
Positive
3
Negative
Balanced use of
stereo 1/4" jack plugs
Tip =
hot (+ve)
Ring =
cold (-ve)
Sleeve =
Ground / Shield
Tip
Ring
Sleeve
Strain relief clamp
For connection of balanced and
unbalanced plugs, ring and sleeve have
to be bridged at the stereo plug.
1 2
3
Output
E
(+)Hum + Signal
(-)Hum + Signal
2 x Signal
= Signal + 6 dB