Advantech POS-761F, Руководство пользователя

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23 Chapter 2
2.18 VGA interface connections
The POS-761F 's AGP 4X interface can drive conventional CRT displays
and is capable of driving a wide range of flat panel displays, including
electroluminescent (EL), gas plasma, passive LCD and active LCD dis-
plays. The board has two connectors to support these displays, one for
standard CRT VGA monitors and one for flat panel displays.
2.18.1 CRT display connector (CN36 and CN37)
CN30 is a standard 15-pin D-SUB connector commonly used for the CRT
VGA monitor only. CN31 is a 16-pin header connector allowing users to
extend the VGA connector and keyboard interface elsewhere via a cus-
tomized cable. Pin assignments appear in the appendix.
2.18.2 Flat panel display connector (CN31)
CN31 consists of a 44-pin and a 16-pin dual inline header. It can connect
to a 36-bit TFT LCD panel. Pin assignments appear in the appendix. (For
more information on LCD connection information between CN31 and an
LCD, refer to Chapter 3.)
1-3 COM4 Power
3-5 COM4 RI*
Table 2.9: COM3, COM4 R1/power select (J14)
Closed pins Result
4-6 COM3 (+12 V)
2-4 COM3 (+5 V)*
3-5 COM4 (+12 V)
1-3 COM4 (+5 V)*
Table 2.8: COM3, COM4 R1/power select (J17)