Nevion ARC-SD-XMUX4 - Manual (Page 4)

ARC-SD-XMUX4 Rev. B
nevion.com | 4
1 Product overview
The Flashlink ARC-SD-XMUX4 converts the aspect ratio of an SD-SDI signal. The module
changes the scaling during the vertical blanking period so that the changes appear to be
instantaneous.
The ARC-SD-XMUX-4 has 4 x SDI outputs and 4 x AES I/Os.
The ARC-SD-XMUX4 is also a frame synchronizer with an adjustable offset relative to the
sync signal.
The ARC-SD-XMUX4 also has a de-glitcher to give error-free synchronous switching.
The audio embedded in the SD-SDI stream is de-embedded and can be delayed relative to
video. The stereo audio channels can be swapped in the audio matrix before they are re-
embedded in the SD-SDI data output stream.
A selection of user parameters of the card can be controlled by switches on the board.
Complete control of all parameters is available by use of the Flashlink RS422 Control
Protocol Version 4, which is supported by the Multicon GYDA system controller from
software release 2.13.
SDI
OPTICAL
IN
SDI
ELECTRICAL
IN
SDI OUT
16 ch Audio
De-embedder
16 ch Audio
Embedder
Audio x-point
Reclocker /
De-serialiser
x-point
Frame Sync
w/ Video
generator
Deglitcher
Phase Thru
Aspect Ratio
Conversion
Audio
Delay
Audio Tone
Generator
SDI OUT
SDI OUT
SDI OUT
4 AES OUT 4 AES IN 4 AES Selectable I/O CTRL Audio SRC
Genlock REF
Control
GPI
GYDA
RS422
Decoder
RS422
OUT
BYPASS
Video
Processing /
Gain /
Label insert
AFD / WSS /
VI
De-embedder
AFD / WSS /
VI
Embedder
Audio
processing
Figure 1: ARC-SD-XMUX4-R block diagram.
1.1 Product versions
ARC-SD-XMUX4 SD-SDI aspect ratio converter. 4AES I/O, 4 SDI outputs and frame
synchronizer functionality.
ARC-SD-XMUX4-R As above but with a high sensitivity 9/125µm single mode optical
input.
ARC-SD-XMUX4-R-L As above but with an APD 9/125um single mode optical input