Handbook

Redbox User Handbook No 1
45
DIGITAL AUDIO CONVERTERS - RB-SP1
6
DIGITAL AUDIO CONVERTERS
Inputs and Outputs
AES/EBU Inputs
The digital source XLR 3 pin sockets have an impedance of 110Ω. They have the following
connections and meet the IEC 60968 specication:
Pin 1: Screen
Pin 2: Phase
Pin 3: Non-phase
S/PDIF Inputs
The digital source RCA phono inputs both have an impedance of 75Ω.
AES/EBU Outputs
The digital output XLR 3 pin plugs have an impedance of 110Ω. They have the following
connections and meet the IEC 60968 specication:
Pin 1: Screen
Pin 2: Phase
Pin 3: Non-phase
S/PDIF Outputs
The digital output S/PDIF phono outputs have an impedance of 75Ω.
Rear Panel Controls
Digital Input & Output Select Buttons
These buttons are used to switch the digital connection between the AES/EBU XLR
connector (button out) and the S/PDIF phono connector (button in) for the digital source
and digital output.
Mode Select Dip Switches
RB-SP1 Mode Select Settings
1 ON Input 1 Channel B = Output 2 Channel B in Stereo/Mono Split Mode
1 OFF Input 1 Channel B = Output 2 Channel A in Stereo/Mono Split Mode
2 ON SRC Enabled
2 OFF SRC Disabled
3 ON Dual Mono in Stereo/Mono Split Mode
3 OFF Single Mono in Stereo/Mono Split Mode
4 Reserved
Fig 6-6: RB-SP1 Mode Select Dip Switches
Altering the Stereo/Mono Split/Combine Mode – In Split mode With switch 1 o, channel
A (Left) and B (Right) on the input are transferred to channel A (Left) of outputs 1 and 2
respectively. With switch 1 on, channel A (Left) on the input is transferred to channel A (Left)
on output 1 and channel B (Right) on the input is transferred to channel B (Right) of output