ART Pro Audio DPS II - Digital Preamplifier System - Manual (Page 13)

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DIGITAL CONNECTIONS
S/PDIF COAX Out (Rear)
The digital coax output jack on the DPS II™ is an RCA type that outputs S/PDIF
stereo signals over a coaxial shielded cable. The data format is S/PDIF stereo 24
bit data at up to 100KHz sampling rate.
Due to the wide bandwidth, A R T recommends the use of high quality, low loss,
fully shielded cabling for the S/PDIF Coax connection.
OPTICAL ADAT Input (Rear)
The optical input of the DPS II™ allows the user to use the DPS II™ within an
ADAT chain. The DPS II™, when set to ADAT mode, synchronizes its sample
rate with that of incoming ADAT clock signals. When in ADAT mode or EXT
mode, the DPS II™ can transmit on channels 1-2, 3-4, 5-6, 7-8, all channels, or
merely act as an ADAT through. When the DPS II™ is acting on 44.1 or 48 KHz
sampling rate, it acts as an ADAT master, and it can only pass through ADAT
channels if the source ADAT is in sync with the DPS II™.
OPTICAL ADAT Output/TOSLINK (Rear)
The optical output is used for both TOSLINK and ADAT transmission. To transmit
ADAT digital audio, the unit must be in 44.1KHz, 48 KHz, ADAT, or EXT mode.
When in 44.1 or 48 KHz mode, the DPS™ acts as an ADAT master clock, when
in ADAT mode the DPS™ syncs to incoming ADAT clock, and when in EXT, the
DPS™ syncs to incoming Word Clock. In all 3 of these modes, one may set the
ADAT transmission channels. When the output is set to S/PDIF, the DPS™ uses
TOSLINK instead of ADAT transmission over the optical connection.
WORD CLOCK Input (Rear)
The BNC connection on the back of the DPS II™ is used to synchronize the unit
with an incoming Word Clock signal. To allow the DPS™ to sync up with the
Word Clock input, set the Sample Rate to EXT. If no valid Word Clock signal is
present, the EXT light will blink, notifying the user that it was unable to
synchronize.