Advantech PCM-5823 Series, Руководство пользователя

Страница: 36 / 129

24 PCM-5823 User's Manual
2.16 VGA interface connections
The PCM-5823 Series board's SVGA interface can facilitates
conventional CRT displays as well as active LCD displays. The
card has two connectors to support these displays, one for standard
CRT VGA monitors and one for flat panel displays.
2.16.1 CRT display connector (CN18)
CN18 is a 15-pin, D-SUB connector commonly used for conven-
tional CRT displays.
Detailed information on pin assignments for CRT display connec-
tor CN18 is given in Appendix A.
2.16.2 Flat panel display connector (CN12)
CN12 consists of a 44-pin, dual-in-line header.
The power supply (+12 V) for CN12 is dependant on the supply
connected to the board. Therefore make sure that CN9 is connect-
ed to a +12 V power supply.
The PCM-5823 Series provides a bias control signal on CN12
which can be used to control the LCD bias voltage. It is recom-
mended that the LCD bias voltage not be applied to the panel until
the logic supply voltage (+5 V or +3.3 V) and panel video signals
are stable. Under normal operation the control signal (ENAVEE)
is active high. When the PCM-5823 Series board's power is
applied, the control signal is low until just after the relevant flat
panel signals are present.
The IRQ and address range for both ports are fixed. However, if
you wish to disable the port or change these parameters later, you
can do this in the system BIOS setup. The table below shows the
settings for the PCM-5820 Series board's ports.
Table 2-4: Serial port default settings
Port Address Interrupt Default
COM1 3E8, 3F8 IRQ4 3F8
COM2 2E8, 2F8 IRQ3 2F8
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com