Advantech PCM-3342, Руководство пользователя

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9 PCM-3342 User Manual
Chapter 2
H
/W Installation
100 Mbps connector (CN11)
100 Mbps connections are made via the internal 5 * 2P box header.
2.2.2.8 COM Port Connector (CN12, CN13)
The board provides four serial ports: Four serial RS-232 ports in one 40-pin connec-
tor (CN12: COM1/2/3/4). It provides connections for serial devices or a communica-
tion network. You can find the pin assignments for the COM port connector in
Appendix A.
Serial Port RS-422/485 (CN13)
Serial ports can be configured to operate in RS-422 and RS-485 mode. RS-422 and
RS-485 are in one pin header (CN13) and can be configured via J1 connector.
2.2.2.9 GPIO (General Purpose Input Output) (CN14)
The board supports 8-bit GPIO through the GPIO connector. The 8 digital in and out-
puts can be programmed to read or control devices, with input or output defined. The
default setting is 4 bits input and 4 bits output.
2.2.2.10 Parallel Port Connector (CN15)
Normally, the parallel port is used to connect the card to a printer. The board includes
a multi-mode (ECP/EPP/SPP) parallel port accessed via CN15 and a 26-pin flat-
cable connector. You will need an adapter cable if you use a traditional DB-25 con-
nector. The adapter cable has a 26-pin connector on one end, and a DB-25 connec-
tor on the other. The parallel port is designated as LPT1, and can be disabled in the
system BIOS setup. The parallel port interrupt channel is designated to be IRQ7.
You can select ECP/EPP DMA channel via BIOS setup.
2.2.2.11 Keyboard and PS/2 Mouse Connector (CN16)
The board provides a keyboard connector that supports both a keyboard and a PS/2
style mouse. In most cases, especially in embedded applications, a keyboard is not
used. If the keyboard is not present, the standard PC/AT BIOS will report an error or
fail during power-on self-test (POST) after a reset. The product’s BIOS standard
setup menu allows you to select “All, But Keyboard” under the “Halt On” selection.
This allows no-keyboard operation in embedded system applications, without the
system halting under POST.
2.2.2.12 PC/104 Connector (CN17)
PCM-3342 supports full ISA compatible functions via PC/104 connector (CN17).
20 x 2 (F) 2.54 mm 51.86 mm x 5.01 mm x 11.45 mm p = 3.40 mm
32 x 2 (F) 2.54 mm 82.34 mm x 5.01 mm x 11.45 mm p = 3.40 mm
PC/104 negative voltage: One 3 * 1P pin header (CN18) supports -5 V/-12 V power
input for ISA devices.
J1 COM2 Setting
Setting Function
(1-2) RS232
(3-4) RS485
(5-6) RS422