User guide

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Digital audio support

The Line In socket on the transmitter and the Line Out socket on the

receiver are dual purpose. They can accept either 3.5mm analog jacks or mini-

TOSLINK optical ﬁbre connectors. The latter provide access to the optical

S/PDIF (Sony/Philips Digital InterFace) capabilities supported by the AdderLink

XD522 system, which transmits PCM (Pulse Code Modulation) audio at 96KHz.

The digital and analog channels run independently alongside each other via the

CATx link.

TOSLINK cable

from audio

device plus

mini-TOSLINK

adaptor

Mini-TOSLINK

cable from

audio device

Third party adaptors (not supplied) are available to convert between the

mini-TOSLINK connections used on the AdderLink XD522 units and the more

common full size TOSLINK connectors found on many audio/visual devices.

To connect digital audio

1 Use either a mini-TOSLINK ﬁbre optic cable (or a full size TOSLINK ﬁbre optic

cable plus a mini-TOSLINK adaptor) to connect the Line Out socket on

the receiver to the digital Line In socket of the digital audio device.

Note: This digital output is fed via the main CATx link from the optical

connection of the transmitter’s Line In socket only. There is no crossover

between the analog and digital audio subsystems of the AdderLink XD522

installation.