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Digital-Audio

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XSF Sony I/O-Interface

8-channel SDIF-2 I/O Board

8 channels
Combined I/O board
Transparent forwarding of all Sony SDIF-2 bits (incl. control bits)
Galvanic I/O isolation (option)

XSF Sony-Format I/O-Interface Board

This NEXUS 8-channel board is an interface to the Sony SDIF-2 digital audio format standard. The board is primarily designed for use with multitrack tape machines but can also be connected to other peripherals supporting the format.
The duplex board provides eight inputs and eight outputs on separate D-Sub ports. A version featuring galvanically isolated inputs and outputs is optionally available.

NEXUS means format diversity: an interface board is available even for the rarely used SDIF-2 format. The front panel can be detached from the board and be installed at a different Base Device location.

Optional Variants

On request, versions featuring only an input (XSF-R) or an output (XSFT) are available for special-purpose applications.
A 3-board assembly sharing a 50-pole D-Sub port is available for 24-channel applications.

8 Channels or 2×4 Channels

With the 8-channel version, all inputs will be synchronised to the first channel if the channels are in sync. The XSF-S stereo version synchronises the stereo channels to the respective odd-numbered channel of a stereo pair.
Asynchronous input data is automatically recognized by the board and triggers an error message.

Ancillary Data

The board reads and writes the emphasis and SCMS status bits. The entire data format including user data is transparently forwarded between XSF interfaces on the NEXUS system.

Physical Characteristics

The board requires 1 slot and 8 DU on a NEXUS Base Device. The front panel can be detached from the board and be installed in an adjacent location; it will then be connected to the board via a ribbon cable, and the space requirements will reduce to 4 DU.

Versions
XSF	8 inputs/outputs*
XSF-R	8 inputs*
XSF-T	8 outputs*
Option-S	Synchronisation to every odd-numbered channel
Option-G	galvanic isolation of inputs and outputs
Three XSF boards can be grouped to form a 24-channel interface. Optional versions featuring 2 D-Sub terminals (50-pole, female) are optionally available for this configuration.
* synchronisation to the first channel

XSF01 Specifications
Data formats	SDIF-2
Audio data	20 bits
XSF, XSF-R inputs	8 channels per board
	25-pol. D-Sub (female)
	transformer-insulated (G option )
	Impedance	120 Ohm
XSF, XSF-T outputs	8 channels per board
	25-pole D-Sub (female)
	transformer-insulated (G option )
	Impedance	120 Ohm
Note	optionally available as 24-channel version
Recommended cables	shielded twisted-pair cables with approx. 110 ohm impedance
Features (per output)	transparent forwarding of all SDIF-format bits (incl. ancillary information) can be enabled individually for each channel
	detachable ground connection at the input and output ports (using jumper)
Sample rates	44.1 to 48 KHz (NEXUS system clock)

Stage Tec Entwicklungsgesellschaft für professionelle Audiotechnik mbH, D-12459 Berlin, Tabbertstr. 10
Phone: +49 30 639902-0, Fax: +49 30 639902-32, , © 2002-2008 Stage Tec Berlin

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