Advantech PCM-9550F, User Manual

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3 0 PCM-9550F/FM/L User's Manual
2.19 VGA interface connections
The PCM-9550’s PCI SVGA 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 displays. The board has two connectors to
support these displays, one for standard CRT VGA monitors and
one for flat panel displays.
2.19.1 CRT display connector (CN1)
CN1 is a 16-pin, dual-inline header used for conventional CRT
displays. A simple one-to-one adapter can be used to match CN1
to a standard 15-pin D-SUB connector commonly used for VGA.
Pin assignments for CRT display connector CN18 are detailed in
Appendix C.
2.19.2 Flat panel display connector (CN14)
CN14 consists of a 40-pin connector which can support a 24-bit
LCD panel. It is Hirose’s product no. DF13A-40DP-1.25 V
The PCM-9550F/FM/L provides a bias control signal on CN14 that
can be used to control the LCD bias voltage. It is recommended
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-9550F/FM/L’s power is applied, the
control signal is low until just after the relevant flat panel signals
are present.
2.19.3 Extension flat panel connector (CN9)
CN9 consists of a 20-pin connecotr which is Hirose’s product no.
DF13A-20DP-1.25V. The PCM-9550F/FM/L supports a 36-bit LCD
panel which must be connected to both the CN14 (40-pin) and the
CN9 (20-pin). The pin assignments for both CN14 and the CN9
can be found in Appendix C.