Advantech PCA-6275, Руководство пользователя

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Chapter 2 Connecting Peripherals 29
2.9 External Suspend Switch Lead (SMI)
(CN14)
This allows the user to manually place the system into a suspend mode
or "Green" mode when the system is not in use. System activity is
decreased to save electricity and prolong the life of certain
components. The 2-pin connector connects to the case-mounted
suspend switch. If you do not have a switch for the connector, you may
use the "turbo switch", because it does not have any other function.
SMI is activated when it detects a "short to open" moment. Therefore,
leaving it shorted will not cause any problems. It may require one or
two pushes depending on the position of the switch. Wake-up can be
controlled by settings in the BIOS, but the keyboard will always allow
wake-up. (The SMI lead cannot wake up the system.) If you want to
use the SMI connector, the "Suspend" switch in the Power Manage-
ment Setup of the BIOS software should be on the default setting
"Enable".
2.10 Serial Ports (CN15: COM1; CN16: COM2)
The PCA-6275 offers two serial ports, CN15 as COM1 and CN16 as
COM2. These ports can connect to serial devices (such as a mouse,
printers, and so on) or to a communication network.
Table 2-1: Serial port connections (COM1, COM2)
Connector Port Address Interrupt
CN15 COM1 3F8*, 3E8 IRQ4
CN16 COM2 2F8*, 2E8 IRQ3
* default settings
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 connector.