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Crestron QM-FTMC
Operations & Installation Guide – DOC. 6311A
COMPUTER
This female DB15HD connector is used for connecting a computer's RGB video
output to the presentation system. A corresponding 3.5mm mini-jack is provided
for the computer sound card output. This port can automatically detect the
presence of an H-sync video signal to support RGBHV and RGBS, and
component video detection by sensing the green video signal on pin 2 to support
RGsB and Y, P
, P
. Video sensing is accomplished by detecting electrical
B
R
activity in the following locations.
Horizontal sync on RGB
•
Green Video path on RGB
•
Composite video
•
SIGNAL DETECTED
Green & H Sync
Green & No H Sync
Composite
Refer to the following table for the DB15HD connector pin-assignments.
75 Ω terminated (R,G,B)
•
Maximum input voltage 1 V
•
Maximum H and V Sync: 5.0 V
•
RGB DB15HD Pin Assignments
PIN
FUNCTION
1
Red Video
2
Green Video
3
Blue Video
4
Reserved
5
Ground
6
Red Ground
7
Green Ground
8
Blue Ground
The computer audio connector provides an unbalanced stereo line-level audio
input (maximum input level 1 V
FlipTop Media Center
SIGNAL REPORTED
RGB
Component
Composite
p-p
into 1 kΩ
p-p
PIN
FUNCTION
9
No Connect
10
Ground
11
No Connect
12
Monitor Sense 1
13
Horizontal Sync
14
Vertical Sync
15
Monitor Sense 2
).
rms
FlipTop Media Center: QM-FTMC • 11
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