Pegasus PCI Motherboard User’s Guide
20
Step 10 Connect I/O
Onboard Adapters The Pegasus PCI motherboard has:
• two serial ports (J2 and J3),
• a parallel port (J8),
• an IDE controller on the PCI bus (the primary IDE connector is J11 and
the secondary IDE connector is J9), and
• a floppy controller (J4).
The serial and parallel port connectors are described below.
Conflicts AMIBIOS minimizes conflicts between onboard and offboard I/O devices.
AMIBIOS automatically checks the adapter cards installed in the expansion
slots on the Pegasus PCI motherboard for a hard disk or floppy controller and
serial or parallel ports.
J3 SER1 J2 SER2 J2 and J3 are 9-pin connectors that provide an AT-compatible serial port
interface. Connect the cables supplied with the motherboard to J2 and J3. The
serial port base I/O port address and other serial port settings can be selected
in Peripheral Setup in WINBIOS® Setup.
The J2 and J3 pinout is shown below.
Pin Signal Description Pin Signal Description
1Carrier Detect 6Data Set Ready
2Receive Data 7Request to Send
3Transmit Data 8Clear to Send
4Data Terminal
Ready 9Ring Indicator
5Ground 10 CUT PIN
Cont’d