Grass Valley NVISION Compact CQX - Manual (Page 79)

Compact Router System Configurator • User’s Guide 67
12. Tutorials
Routing Overview
Partitions and Levels
Partitions are boundaries within the router used to organize switching. After creating partitions, a
signal type is selected to associate with each partition. This defines what signal format is in use and
enables the control card to determine the correct switching rules and reference requirements.
Signals are switched within a partition, not between partitions. Inputs can be switched only to out-
puts contained in the same partition. Every matrix must contain at least one partition. The router’s
control card will be in an error state (red LED illuminated) if no partition information is found in
EE memory on the router motherboard during boot up.
It is not required that different signal formats be split into separate partitions. In fact, there are cases
where doing this prohibits system functionality. For example, on a router with 32 x 32 SD video
and 32 x 32 analog video with analog-to-digital conversion input and output cards, if the system is
divided into two partitions it is not possible to route between the analog and digital partitions even
though the conversion cards are designed to allow this. Making one 64 x 64 partition eliminates this
issue. In this case the router control system may address the router by specifying physical input and
output ports on a single partition.
Many router control systems, and CRSC, support partitioning use virtual instead of physical parti-
tions, called “levels.” In CRSC, “levels” are analogous to partitions. A level is defined (1) when
you create a router partition or (2) when you add a router to your network. CRSC allows you to
define up to 8 levels in total and up to 4 levels per router.
Router Control
Large routers usually require large router control systems (such as Miranda’s NV9000).
A compact router network can function efficiently with no external control system. The “intelli-
gence” of a CRSC network resides in the remote panel module(s) in the network. Thus, a CRSC
network requires at least one remote panel.
In a CRSC network, router control means 3 things:
• Performing multi-level ‘takes’ with or without breakaway.
• Locking or unlocking one or more destinations (or locking and unlocking panels).
• Executing salvos.
The operator performs all operations by pressing buttons on the remote panel. The buttons reflect
the state of the routers using color and brightness.
Routers are passive; they switch when commanded.control panels are also passive — nothing more
than keyboard/displays. It is the remote panel modules that perform the network’s control func-
tions.
Note Partitions and levels do not apply to CQX routers.