XTA apa-4e8, Руководство оператора, Страница: 14 / 76

Page 14 APA-4E8 Operator’s Manual
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Audio Inputs Wiring
Inputs - The inputs are made via 3-pin XLR connectors, which are electronically balanced and
should be connected via a high grade twin core screened cable, as follows:
PIN1: Screen (see NOTE)
PIN2: Hot ()
PIN3: Cold (signal -)
The amplifier is designed to operate with fully balanced equipment and ground loops or loss
of performance may be experienced if connected to unbalanced sources. If it is unavoidable
however, the following wiring should be used. The cable should still be twin core plus screen.
PIN1:
Screen - connected to the chassis of the unbalanced equipment - or left disconnected
at the unbalanced end.
PIN2: Hot ()
PIN3: Cold (ground 0V)
NOTE: This amplifier is wired to the latest industry recommendations. PIN1 is connected
directly to the chassis/mains earth. If ground loops (mains hum) are encountered remove the
screen connection from the one end of the cable and leave it open circuit. If problems persist,
consult your dealer/supplier.
DO NOT TAMPER WITH OR ALTER ANY GROUND (EARTH) CONNECTIONS INSIDE THE
AMPLIFIER.
RS485 Output Wiring
The RS485 output is a data port for connection to other XTA equipment only. It is currently
not supported, however for reference, the following wiring should be used:
PIN1: Screen (see NOTE)
PIN2: Hot ()
PIN3: Cold (signal -)
X
L
R
F
E
M
A
L
E
X
L
R
M
A
L
E