Advantech POC-174, Руководство пользователя

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Chapter 4 Jumper Settings and Connectors 43
4.5 VGA Interface
The Point of Care Terminal's AGP VGA interface can drive convention-
al CRT displays. It is also capable of driving a wide range of flat panel
displays, including electroluminescent (EL), gas plasma, passive LCD
and active LCD displays. The board has two connectors to support
these displays simultaneously: one for standard CRT VGA monitors,
and one for flat panel displays.
CRT display port information can be found in Section 3.9 this manual.
Pin assignments for the flat panel display connector, backlight
connector and other related connectors are shown in Appendix D.
4.5.1 LCD panel power setting
The Point of Care Terminal's AGP SVGA interface supports 5 V and 3.3
V LCD displays. The LCD cable already has a built-in default setting.
You do not need to adjust any jumper or switch to select the panel
power.
4.5.2 Panel type select (SW1)
SW1 is a 4-pin dip switch for selecting panel type and display mode. A
1280 x 1024 TFT LCD is used in the POC-174, so the switch is preset
according to the table below. The switch is already defaulted for the
POC-174's LCD, so it should not be modified. If you require modifica-
tion for a special purpose, we recommend that you consult your
distributor or our sales repreentative for detailed information.
Table 4-7: Panel type select
Panel type
Pin 1 Pin 2 Pin 3 Pin 4
1024 x 768
(36-bit)
OFF ON ON ON
1280 x 1024
(48-bit) OFF OFF ON ON