Crestron CNX-PVID8x4 Spécifications télécharger pdf (Page 18)

Professional Video Distribution Switch Crestron CNX-PVID8x4

14 • Professional Video Distribution Switch: CNX-PVID8x4 Operations Guide - DOC. 8166A

Hardware Configurations

NOTE: The hardware configurations described in the following sections only apply

to systems where the CNX-PVID8x4 connects to Crestron Room Solution Boxes.

The Crestron AppBuilder can generate a program that fits into one of these

configurations.

The CNX-PVID8x4 is constructed with four crosspoint boards; each implements a

16x8x1 matrix. The physical boards are labeled on the back of the unit as "levels" 1,

2, 3, and 4 from bottom to top. Component sources connect to levels 1 through 3 per

input (connect Y to level 1, P

to level 2, and P

to level 3). S-video sources use

levels 1 and 2 per input (connect Y to level 1 and C to level 2). Composite sources

should connect to level 1 only (including level 3 extensions of level 1when boards 1

and 3 are connected via the cable assembly). Digital audio sources connect to level 4.

Refer to the table after this paragraph for a tabulation of the relationship between

input levels and audio/video formats.

Relationship of Audio and Video Formats to Input Levels

\ VIDEO COMPONENT S-VIDEO COMPOSITE DIGITAL AUDIO

\ FORMAT (connects to (connects to (connects to (connects to

LEVEL \ three levels) two levels) one level*) one level)

not connected not connected not connected digital audio

not connected not connected* not connected

C not connected not connected

Y Y COMP not connected

* Composite sources can physically connect to level 3 when boards 1 & 3 are connected via the cable assembly.

Depending on how the internal boards are cabled/jumpered, the unit can be used in

different configurations (each is discussed in the following subsections). Refer to the

following flowchart to determine which configuration to use (based on the source

types in the system).

NOTE: Crestron recommends the out-of-the-box configuration, because it allows

for the distribution of a large number of sources with the greatest flexibility and there

is no need to open the unit. The other configurations permit a greater number of

sources, but are not as flexible. The other configurations also require cabling of

boards and possibly the removal of jumpers.

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