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3.2.2 Signal interface
Item
Condition
Spec
OK N.A Remark
Signal Cable
15-pin D-Sub
Color: Black
Length: 1800 +/- 30 mm
24-pin DVI-D
Color: Black
Length: 1800 +/- 50 mm
Pin assignment
15-pin D-sub connector
See Note-1
For 15-pin D-sub
24-pin DVI-D connector
See Note-2
For 24-pin DVI-D
19-pin HDMI connector
See Note-3
For 19-pin HDMI
Analog input
Signal type
Separate analog R/G/B
For 15-pin D-sub
Level
700 mV (peak to peak)
Impedance
75 Ohms +/- 1.5 Ohms
Sync input
Signal type
Separate H/V-sync
(Positive/Negative)
For 15-pin D-sub
Level
Logic High: 2.4V ~ 5.5V
Logic Low: 0V ~ 0.5V
(TTL level)
Refer to VESA VSIS
Standard V1R1
Impedance
Minimum 2.2KΩ(pull
down)
10KΩ for application
Sync Pulse Width (SPW) 0.7
μs < H-SPW
1H < V-SPW
Digital input
Level
600mV for each
differential line
Impedance
50 Ohm TDR Scan
needed for DVI cable and
interface board
Note-1:
The pin assignment of 15-pin D-sub connector is as below,
Pin
Signal Assignment
Pin
Signal Assignment
1
Red video
9
PC5V (+5 volt power)
2
Green video
10
Sync Ground
3
Blue video
11
Ground
4
Ground
12
SDA
5
Cable Detected
13
H-Sync (or H+V)
6
Red Ground
14
V-sync
7
Green Ground
15
SCL
8
Blue Ground
Summary of Contents for G225HQ
Page 22: ... 22 3 9 Packing ...
Page 23: ... 23 4 Disassembly Assembly 4 1 Exploded View ...
Page 24: ... 24 ...
Page 46: ... 46 5 4 OSD Operation Guide ...
Page 47: ... 47 ...
Page 48: ... 48 ...
Page 49: ... 49 ...
Page 62: ... 62 Appendix 1 Screw List Torque A STANDARD SCREW TORQUE QCS ...
Page 63: ... 63 ...
Page 64: ... 64 B STANDARD SCREW TORQUE QZB QMX ...
Page 66: ... 66 ...
Page 67: ... 67 Appendix 3 I F Board Please see the next page ...