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Appendix
Pin Assignments
Sync Type
15 Pin Side of the Signal Cable (Figure 1)
Pin No.
Separate
Composite
1 Red
Red
2
Green
Green
3
Blue Blue
4
GND
GND
5
DDC Return DDC Return
6
GND-R
GND-R
7
GND-G
GND-G
8
GND-B GND-B
9
Reserved
Reserved
10
GND-Sync/Self-Raster
GND-Sync/Self-Raster
11
GND
GND
12
DDC Data DDC Data
13
H-Sync H/V-Sync
14
V-Sync
Not Used
15
DDC Clock
DDC Clock
Figure 1 : Male Type
Cable Adapter (Figure 2
Apple MAC II
GND-R
Red
H/V Sync
Sense 0
Green
GND-G
Sense 1
Reserved
Blue
Sense 2
GND
V-Sync
GND-B
GND
H-Sync
Figure 2 : Male Type
Display Modes Timing Chart
Display Mode
Horizontal
Vertical Pixel
Sync Polarity
Frequency (kHz) Frequency (Hz) Clock (MHz)
(H/V)
IBM, VGA2, 720 x
400 31.469 70.087 28.322
–/+
IBM, VGA3, 640 x
480 31.469 59.940 25.175
–/–
VESA, 640 x 480
37.500 75.000
31.500
–/–
VESA, 800 x 600
46.875 75.000 49.500
+/+
VESA, 800 x 600
53.674 85.061 56.250
+/+
VESA, 1024 x 768
60.023 75.029 78.750
+/+
VESA, 1024 x 768
68.677 84.997 94.500
+/+
13