Grass Valley NVISION Compact CQX - Manual (Page 100)

88 Rev 2.0 • 29 Mar 10
12. Tutorials
Products
Analog Audio Routers
The 1RU analog audio routers have 16×16, 16×4, or 8×8 crosspoints. The 2RU analog audio rout-
ers have either 32×32 or 32×4 (stereo) crosspoints. Figure 12-22 shows a simplified view of the
analog video router:
Figure 12-22. Block Diagram of the Analog Audio Router
The analog audio routers switch analog audio signals. Router outputs are switched in sync with an
external video reference if the reference is present and are switched asynchronously if no reference
is present.
The analog audio router passes input signals transparently to the output with no audio processing or
adjustments.
Although the analog audio routers signals are stereo, the connectors are labeled as if the signals
were mono. A 16×16 router shows inputs and outputs numbered 1–32. A 32×32 router shows
inputs and outputs numbered 1–64. An 8×8 router shows inputs and outputs numbered 1–16.
Machine Control Routers
The machine control routers do not have X/Y crosspoints per se, but allow point-to-point connec-
tions. One input may connect to (at most) one output.
The 1RU machine control router has 16 bidirectional serial ports (RJ-45). The 2RU machine con-
trol router has 32. Figure 12-23 shows a simplified view of the machine control router:
Figure 12-23. Block Diagram of the Machine Control Router
Machine routers channel serial data, typically commands in one direction and responses in the other
direction. Because the connections are bidirectional, a port is both an input and an output.
The machine control routers are defined as “data reverse” routers. Each port can be configured as
dynamic, master, slave, controlling, or controlled. Either CRConfig or CRSC is a requirement for
configuring the ports.
M N
µP Logic
Inputs Outputs
Crosspoint
Switch
Control
Panel
Video
Reference
Automation
Ethernet
(optional)
M = 8, 16 or 32
N = 4, 8, 16, or 32
N
µP Logic
Crosspoint
Switch
Control
Panel
Automation
Ethernet
(optional)
N = 16 or 32 Ports