Справочник Пользователя для Crestron cnxvga

These two BNC connectors connect to the two VIDEO port connectors of the VT-
3500L for composite or S-Video. These connectors should not be used if the 
CNXVGA is connected to the VT-3500.  

The load impedance on both BNC connectors is 75 ohms. The “COMP Y” output is 
a luminance or composite signal, 1.0 Vp-p. The “C” output is the chrominance 
signal, 0.28 Vp-p.  

NOTE:  The video output is configured for S-Video from the factory to provide the 
best result from the scan converter. Make sure the VT-3500 or VT-3500L that is 
connected is configured to accept S-Video through the on-screen setup menus.  

TIP:  If the application requires the video output to be composite rather than S-
Video, a single internal jumper can configure the CNXVGA to output the scan-
converted image as a composite signal. Refer to “Special Applications” on page 5 
for details.  

NET 

There is an 8-position, 8-pin RJ45 connector on one side of the CNXVGA that 
connects to the VT-3500 directly. This connector should not be used if the 
CNXVGA is connected to the VT-3500L.  

There are two 4-pin network connectors on the opposing side. The dual network 
connectors are pass through. One connector connects to the CRESNET control 
network. The other connects to the VT-3500L (if this VideoTouch configuration is 
used) or to other Crestron equipment (if the VT-3500 is connected and daisy 
chaining additional devices is necessary).  

A number of indicators are provided on the top panel of the CNXVGA. Refer to the 
descriptions of each below.  

PWR (Power) 

This LED illuminates when power is applied to the CNXVGA. 

NET 

This LED illuminates when there is network activity involving the CNXVGA.  

VIDEO 

This LED illuminates when the internal multiplexer is set to display the composite or 
S-Video source.  

RGB 

This LED illuminates when the internal multiplexer is set to display the RGB source. 

LOCAL 

This LED illuminates when the CNXVGA is under local control.  

A single recessed button is used to cycle between RGB and video.   

•  3