20
6 Audio Distribution Amplifier - RB-DA4x5
Audio Inputs 1-4
The XLR 3 pin sockets used for the audio inputs are electronically balanced
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matrix. Each XLR has the following connections:
Pin 1: Screen
Pin 2: Phase
Pin 3: Non-phase
D-Type Audio Output Groups 1-4
Each output group connector has 5xDA driven balanced audio outputs on a
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Fig 6-4: RB-DA4x5 Audio Output Group15-Way D-Type Plug
Function
Output 1
Output 2
Output 3
Output 4
Output 5
Out - Pin No.
1
3
4
6
7
Out + Pin No.
9
10
12
13
15
Signal Ground
Pin No.
2
11
5
14
8
Fig 6-5: RB-DA4x5 Pinout for Audio Output Group Connector
Monitor LEDs
There are 4 LEDs on the front panel that indicate the relative levels of the
audio signals at the inputs or outputs. A pushbutton switch on the front
panel toggles the function of these LEDs between input and output. These
LEDs indicate the levels of the signals by illuminating green for signals
between –12 and 0dBu, illuminating yellow for signals between 0 and
+6dBu, and illuminating red for signals over +6dBu.
Input Level Adjustment
The gain for each input can be adjusted through pre-set potentiometers
that are accessible from behind the removable plate on the front panel. The
gain of each balanced input is variable within a range of -8dB to +18dB into
the router input.
Output Level Adjustment
The gain for each output group can be adjusted through pre-set
potentiometers that are accessible from behind the removable plate on the
front panel. The gain of each output group is variable within a range of -8dB
to +18dB from the router output.
Routing Selection
Each output group is capable of selecting its signal from any combination
of inputs and the test tone. Set the appropriate dip-switch for that group &
that input to the on position to include the signal in the group’s output.
Fig 6-6: RB-DA4x5 Routing Selection Switch
Function
Group 1
Routing
Group 2
Routing
Group 3
Routing
Group 4
Routing
Input 1
SW1-1 On
SW1-6 On
SW2-1 On
SW2-6 On
Input 2
SW1-2 On
SW1-7 On
SW2-2 On
SW2-7 On
Input 3
SW1-3 On
SW1-8 On
SW2-3 On
SW2-8 On
Input 4
SW1-4 On
SW1-9 On
SW2-4 On
SW2-9 On
Test Tone
SW1-5 On
SW1-10 On
SW2-5 On
SW2-10 On
Fig 6-7: RB-DA4x5 Routing Selection Switch Functions
Output 1
Output 2
Output 4
Output 3
Output 5
1 8
9 15
1
2
3
4
5
6
7
8
9
10
OUTPUT 1
TEST TONE
1 2 3 4
OUTPUT 2
TEST TONE
1 2 3 4
l
l
On
Содержание Redbox RB-AES4B3
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