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20 SBC-350A User's Manual
SBC power connector (CN9)
In single-board-computer (non-passive-backplane) applications
you will need to connect power directly to the SBC-350A board
using connector CN9. This connector is fully compatible with the
standard PC power supply connector (P8). Refer to the following
table for CN9's pin assignments.
SBC Power Connector (CN9)
Pin no. Function Pin no. Function
1 Power good 4 -12 V
DC
2 +5 V
DC
5 GND
3 +12 V
DC
6 GND
Serial Ports
The SBC-350A offers two RS-232 16C550 compatible serial ports.
These ports let you connect to serial devices (mouse, printers,
modems etc.) or a communication network.
You can select the address for each port or disable it through the
BIOS Advanced Setup program, covered in Chapter 5. The
following are the options for both ports:
Serial Port Setup Options
Port Address options
COM1 Disable 3F8 3E8 2F8
COM2 Disable 2F8 2E8 3F8
The card mounting bracket holds the serial port connectors. This
lets you connect and disconnect cables after you install the card.
The DB-9 connector on the top of the bracket is the COM1 RS-232
port. The second DB-9 connector is the COM2 RS-232 port. The
following section tells how to make RS-232 connections.