Opvimus IF-7P4/0E, Руководство по эксплуатации

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IF-7P4/0E version 5.0.001 ENG
12
Audio IP Mainframe
expansion unit
IF-7P4/0E
R + D Department
4.2. Local Audio Inputs connection
Each of the inputs corresponds to a channel (CHANNELS 1, 2, 3 and 4), and each channel corresponds to an amplifier. In this way,
the CHANNEL 1 input corresponds to the amplifier inserted in slot 1, the CHANNEL 2 input corresponds to the amplifier inserted in
SLOT 2, the CHANNEL 3 input corresponds to the amplifier inserted in SLOT 3 and the CHANNEL 4 input corresponds to the
amplifier inserted in SLOT 4.
These inputs are balanced by transformer, with a configurable sensitivity using the PA Manager software: -6dB, -3dB, 0dB, + 3dB, +
6dB.
Using DIP Switches, local inputs can be configured as program or priority inputs. In the PROGRAM position, the audio applied to the
input is sent directly to the amplifier of the corresponding channel. In the PRIORITY position, the audio applied to the input will be
sent to the corresponding amplifier when the priority contact (PRI) is connected to ground (GND).
Figure 10
Figure 11
H
HOT Audio input
GND
Ground
C
COLD Audio input
PRI
Priority control contact. By joining this
contact to ground (GND) through an
external device, the signal applied to
the input attacks the corresponding
amplifier.
ACK
Acknowledge output contact. By
closing that contact the equipment
confirms that the priority channel is
activated and ready.