Grass Valley UniConfi NVISION Series v.2.0 - Manual (Page 56)

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Partitions and Signal Types
Partition Types
Video
• Video [NV5128 only]
Analog (NTSC, PAL) or digital (SD, HD) video. (The term SWB represents I/O cards that can
accommodate both HD and SD signals.)
• Digital video [NV8256, NV8288, NV8500 family only]
HD or SD video. The NV8256, NV8288, and NV8500 routers also switch 3Gig video.
• Time code [NV5128]
This means linear time code.
NVISION series routers do not support time code, even though the partition type is available.
Although the NV7256 and NV7512 can switch time code signals (as an analog audio parti-
tion), NVISION series routers cannot use time code signals in any way.
Machine Control
A partition in a machine control router can operate in one of 4 modes:
Forward Reverse Broadcast Data X/Y
Machine control ports are bi-directional. The ports are typically RS-422 or RS-232. Signal data
flow in one direction and status flows in the other direction.
Except in data X-Y mode, machine control routes are point-to-point. In data X-Y mode, the
router’s partition acts like a true crosspoint matrix.
The modes are as follows:
• Forward
The direction of a connection is from a controlling device to a controlled device.
• Reverse
The direction of a connection is from a controlled device to a controlling device.
• Broadcast
One signal can be “broadcast” to several outputs.
• Data X-Y
Data X-Y mode lets a machine control router partition behave like an X-Y matrix.
For more information, see Setting Up Machine Control Ports on page 81.
S For the NV5128, machine control signals must be assigned to a single, individual partition.
The 4 machine control partition types have different behavior.
Data X/Y Mode
Data X/Y mode lets a machine control router partition behave like an X/Y matrix. This mode is
useful if you have serial data to route, and not just machines to control.
Normally machine control routes are point-to-point. One port may be connected to at most one
port. (Ports can also be disconnected entirely.)
A data X/Y partition allows any input to be routed to any output or any set of outputs. Further,
the partition is not bidirectional. Data flow from input to output.