Rgb Signal Compensation - Crestron C2N-MMS Operation Manual

Crestron C2N-MMS
Operations Guide – DOC. 6374
Setting the DIP Switches
1. Referring to the following table, set the DIP switches to the required sync
input impedance and DDC functionality of each RGB input port.
DIP Switch Function Chart
SWITCH
FUNCTION SETTING
OFF
DDC
ON
1K
SYNC INPUT
500
IMPEDANCE
75
NOTE: The function table is also located on the C2N-MMS adjacent to the DIP
switches.
NOTE: The factory setting for the DIP switches are DDC disabled (switches 1 & 2
in the OFF position) and 1k ohm impedance (switches 3 through 6 in the OFF
position).
2. Replace the top cover and secure the screws using the #2 Phillips
screwdriver.

RGB Signal Compensation

To account for varying cable lengths for RGB output signals, the C2N-MMS features
switchable 3 dB frequency compensation and 1.25 dB signal boost to provide clear
images on cable runs over 100 feet. The following table illustrates which settings to
use for specific RGB cable lengths. All settings are made from the control system
program. Refer to "Programming Software" on page 15 for more information.
Cable Length and Suggested EQ/Boost Settings
CABLE LENGTH
0 to 25 ft
25 to 50 ft
50 to 75 ft
75 to 100 ft
More than 100
NOTE: The sync output is not affected by peak and boost settings.
NOTE: These settings are only suggested settings. Results may vary depending on
the type of cable and installation methods used. The user should determine the
settings for best results in specific installations.
NOTE: Crestron has successfully tested 100-foot cable runs without loss of picture
quality. Cable runs in excess of 100 feet may be subject to signal degradation as
cable length increases over 100 feet.
Professional Multimedia Switch
DDC HORIZONTAL
1 2 3
OFF OFF X
ON ON X
X X OFF
X X ON
X X ON
EQ1 EQ2 BOOST
Off Off Off
On Off Off
Off On Off
On On Off
On On On
Professional Multimedia Switch: C2N-MMS • 13
VERTICAL
SYNC SYNC
4 5 6
X X X
X X X
OFF OFF OFF
OFF ON OFF
ON ON ON