Handbook
Redbox User Handbook No 1
13
Word Clock Input
The Word Clock input is designed to receive a distributed clock running at the actual
sampling frequency. The signal can be dierential, or single ended, TTL level.
RB-ADDA2 Outputs
Analogue Outputs (Left and Right)
The XLR 3 pin output plug connectors are electronically balanced with an output
impedance of less than 50Ω. They have the following connections:
Pin 1: Screen.
Pin 2: Phase.
Pin 3: Non-phase.
RCA Phono Outputs (Left and Right)
These RCA (phono) outputs are unbalanced and have an output impedance of less
than 75Ω.
Output Level Adjustment
The output gain can be individually adjusted for left and right channels through the
front panel by the D/A SOURCE Select button (Fig 2-8). Each output gain can be set for
a signal of full-scale digits in the digital domain to give +12, +18 or +24dBu output on
the XLR connectors. The RCA phono outputs have a further 10dBu nominal attenuation
incorporated.
AES/EBU Output
The digital output XLR 3 pin socket has an impedance of 110Ω. It has the following
connections:
Pin 1: Screen
Pin 2: Phase
Pin 3: Non-phase
The signals on this connector will comply with the IEC 60968 specication
S/PDIF Output
The digital output S/PDIF phono output has an impedance of 75Ω.
Optical Output
The digital audio optical output meets the TOSLink specication used by most professional
& consumer equipment.
DIGITAL AUDIO CONVERTERS - RB-ADDA2
2
DIGITAL AUDIO CONVERTERS