Grass Valley CRSC v.3.2 - Manual (Page 141)

129
CRSC
User’s Guide
All routers except machine control routers accept these video reference rates:
The machine control routers do not receive video reference signals.
The CQX routers accept the same video reference rates.
The video format received must be compatible with the video reference applied.
Digital Video Routers
(See CQX Video Routers , following, for a discussion of the CQX routers.)
The 1RU digital video routers have 16×16, 16×4, or 8×8 crosspoint matrices, depending on the
model. The 2RU digital video routers have either 32×32 or 32×4 crosspoint matrices.
Figure A-20 shows a simplified view of the digital video router:
Fig. A-20: Block Diagram of the Digital Video Router
The video routers perform input equalization and, except for the -NR models, perform
reclocking of outputs. The -NR models do not perform reclocking. Router outputs are switched
in sync with an external video reference if it is present.
All digital video routers accept bi-level or tri-level video references (sync) and switch according
to SMPTE RP168-2002.
3Gig Video Routers
All of the “3Gig” routers support 2.966Gb/s, and 2.97Gb/s video rates as well as a number of HD
bit rates and formats. The 3Gig routers reclock at 270Mb/s, 1.483Gb/s, 1.485Gb/s, 2.966Gb/s,
and 2.97Gb/s. The 3Gig routers bypass re-clocking for other rates. Video references must be
nominally 800mV p-p and bi-level or tri-level in nature.
Composite HD Tri-level
525i / 59.94
(NTSC)
625i / 50
(PAL)
720p / 23.98
720p / 24
720p / 25
720p / 29.97
720p / 30
720p / 50
720p / 59.94
720p / 60
1080i / 47.95
1080i / 48
1080i / 50
1080i / 59.94
1080i / 60
1080p / 23.98
1080p / 24
1080p / 25
1080p / 29.97
1080p / 30
1080p / 50
1080p / 59.94
1080p / 60
M N
μP Logic
Inputs
(Equalized)
Outputs
(Reclocked)
Crosspoint
Switch
Control
Panel
Video
Reference
Automation
Ethernet
(optional)
M = 8, 16 or 32
N = 4, 8, 16, or 32