Nevion FRS-3G-DUAL - Manual (Page 5)

FRS-3G-DUAL Rev. B
nevion.com | 5
1
Product description
SDI
ELECTRICAL IN
1
Reclocker /
De-serialiser
1
X-point
Frame
Sync 1
Deglitcher 1
Video
Generators
Video Fixed
Delay 1
GYDA
Genlock REF
Control
General Ctrl
SDI
ELECTRICAL IN
2
Reclocker /
De-serialiser
2
X-point
Frame
Sync 2
Deglitcher 2
Video
Generators
Video Fixed
Delay 2
4 X GPI
SDI OUT 1
SDI OUT 1
SDI OUT 2
SDI OUT 2
STATUS GPI
Figure 1: Simplified block diagram of the FRS-3G-DUAL card
1.1 The core functionality
The FRS-3G-DUAL is two 3G-HDSDI frame synchronizers on one Flashlink board. The two
frame synchronizers share a common sync input, but are otherwise completely
independent. They can handle all common SD, HD, and 3G level A video standards, and
the two inputs need not have the same input frequencies or the same frame rates.
Maximum video delay is eight frames.
The FRS-3G-DUAL comes in the standard Flashlink form factor and it is designed to be
used with Multicon Gyda, the Nevion system controller. A subset of the configuration
parameters can also be controlled by onboard switches, enabling stand-alone operation.
1.2 Secondary functionality
1.2.1 De-glitcher
The FRS-3G-DUAL comes with a built-in de-glitcher for continuous and seamless output.
This will clean up line errors due to up-stream switching or other signal glitches. The output
even remains error-free with change of input formats.
1.2.2 Input change-over with fallback to internal generators
The FRS-3G-DUAL comes with an electrical SDI input per frame synchronizer core.
Sophisticated input selection logic can switch automatically between the physical input and
one of the internal generators.
1.2.3 Multiple SDI outputs
The FRS-3G-DUAL comes with a total of 4 BNC SDI outputs. Each of the two frame
synchronizer cores has one inverting and one non-inverting output.
1.2.4 EDH processing
The FRS-3G-DUAL always does EDH processing.