Advantech PCA-6742 Series, User Manual

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PCA-6742 User Manual 10
The USB interface complies with USB Specification Rev. 2.0 and Rev. 1.1 under DOS
support transmission rate up to 480 Mbps and is fuse-protected.
2.10 Serial Ports (COM1 & COM2 & COM34)
The PCA-6742 offers four serial ports, COMD1 as COM1 (RS-232 on real I/O) and
COM2 as COM2 (RS-232/RS-422/RS-485 on one 2.54mm pitch wafer box) and
COM34 as COM3, COM4 (2*RS-232 on one 2.0mm pitch wafer box). These ports
can connect to serial devices, such as a mouse or a printer, or to a communications
network.
The IRQ and address ranges for both ports are fixed. However, if you want to disable
the port or change these parameters later, you can do this in the system BIOS setup.
Different devices implement the RS-232 standard in different ways. If you are having
problems with a serial device, be sure to check the pin assignments for the connec-
tor.
2.10.1 COM2 RS-232/RS-422/RS-485 setting
COM2 can be configured to operate in RS-232, RS-422, or RS-485 mode. Please
check the JSETCOM2 setting on page 7.
2.11 PS/2 Keyboard / Mouse connector (KBMS1 & 2)
One 6-pin mini-DIN connectors (KBMS1) on the card mounting bracket provide con-
nection to a PS/2 keyboard and a PS/2 mouse, respectively. KBMS2 (5-pin 2.54mm
wafer box) can also be connected to an adapter cable (P/N: 1700060202, available
from Advantech) for connecting to both a PS/2 keyboard.
2.12 VGA connector (VGA1)
The PCA-6742 includes a VGA interface that can drive conventional CRT displays.
VGA1 standard 15-pin D-SUB connector commonly used for VGA. Pin assignments
for CRT connector VGA1 detailed in Appendix B.
2.13 Ethernet connector (LAN1)
The PCA-6742 is equipped with a high performance 32-bit PCI-bus Fast Ethernet
interface which is fully compliant with IEEE 802.3u 10/100Base-T specifications. It is
supported by all major network operating systems.
2.13.1 Network boot
The network boot feature is built into the BIOS. It can be enabled or disabled in the
chipset setup of the CMOS configuration. Refer to "BIOS Setting" in Chapter 3 for
more information.
2.14 Front Panel LAN Indicate connector (LANLED1)
This LED is active for LAN connect