Advantech 2006957006 5th Edition user manual VGA interface connections, CRT display connector CN15

2.18 VGA interface connections

The PCM-9570/S’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.

2.18.1 CRT display connector (CN15)

CN15 is a 16-pin, dual-in-line header used for conventional CRT displays. A simple one-to-one adapter can be used to match CN15 to a standard 15-pin D-SUB connector commonly used for VGA.

Pin assignments for CRT display connector CN15 are detailed in Appendix C.

2.18.2 Flat panel display connector (CN16)

CN16 is a 40-pin connector which can support a 24-bit TFT LCD. It is Hirose’s product no. DF13A-40DP-1.25V.

The PCM-9570/S provides a bias control signal on CN16 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-9570/S’s power is applied, the control signal is low until just after the relevant flat panel signals are present.

2.18.3 Ext. flat panel display connector (CN17)

CN17 consists of a 20-pin header, which is Hirose’s product no. DF13A-20DP-1.25V. The PCM-9570/S supports a 36-bit LCD panel with connections to both CN16 and CN17. For details of pin assignments, refer to Appendix C.

26 PCM-9570/S User's Manual