Axel Falcon 50 FM, Руководство по эксплуатации, Страница: 33 / 45

AUDIO I/O WIRING
ENG
Pag. 33
17 AUDIO I/O WIRING
Where possible use balanced connections for the audio inputs and outputs to minimise noise pick-up. Avoid
running audio cables near to mains or lighting cables or thyristor dimmer units, power supplies etc. These
may cause audible hum and buzz.
The use of low impedance sources significantly reduces interference pick-up. Check the cables for correct
wiring to avoid problems with phase reversal and unreliable connection.
17.1
ANALOG AUDIO INPUT
The processor features electronically balanced XLR female inputs.
Input
L R
1
3
2 1
3
2
Pin 1 Gnd
Pin 2 Signal
Pin 3 Return
An hardware bypass directly connect the two input XLRs to the output ones
in the event of power failure or processor switched off.
In case of unbalanced connections, please connect the cold pole (Pin 3) to the ground (Pin 1).
Factory preset input impedance is 10 kOhm. This impedance may also be set to 600Ohm by moving the two
internal jumpers on the analog I/O board (see previous chapters).
Make sure that the earth connection is good and that earth and audio ground are separated.
NOTE: alsoMONO sources may be connected, refer to software settings.
17.2 ANALOG AUDIO OUTPUT
The processor features XLR analog outputs electronically balanced by high-quality buffers, capable of
withstanding even low-impedance loads (600Ohm), with levels of up to +20 dBu.
Output
L R
1 3 2 1 3 2
Pin 1
Gnd
Pin 2 Signal
Pin 3 Return.
In case of unbalanced connections, connect the cold pole (Pin 3) to the ground (Pin 1).
For output level adjusting, and to change or disable the pre-emphasis setting, please refer to software
settings.