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CyberSerial Dual PCI
Quick Installation Guide
04-0375A
Introducing the CyberSerial Dual PCI
The CyberSerial Dual PCI high-speed serial I/O card
provides two additional 9-pin serial ports.
Features and Benefits
• Conforms to PCI v2.2 Plug and Play
• Reduces CPU load and improves system
performance dramatically
• IRQ sharing feature reduces IRQ conflicts
• High-speed serial port (9-pin) works with 56K V.90
external modems, ISDN terminal adapters, PDAs,
digital cameras, label printers and other serial port
devices
• Built-in FIFO buffers dramatically increase data
transmit/receive speed, especially under Windows'
multitasking environment
• Each serial port can be configured for either 5V or
12V output, for serial devices that require power
System Requirements
• Pentium or equivalent computer with an available
PCI slot
• DOS, Windows 95/98/98SE/ME/NT 4.0/2000/
XP/Server 2003
• Linux Kernel 2.4.x or later

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Package Contents
• CyberSerial Dual PCI board
• Driver CD
• Quick installation guide
Layout
Figure 1. Layout
Jumper Settings (JP1, JP2)
Open = 0 volts (default)
Short 1-2 = 5V
Short 2-3 = 12V
Note: Most serial devices do not require additional
power through the serial port. Refer to your serial
device's manual for more information. The jumpers
can be removed if the serial ports aren't configured
for power output.
Serial Port 2
JP1 (Serial port 1)
JP2 (Serial port 2)
Serial Port 1

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Hardware Installation
General instructions for installing the card are provided
below. Since the design of computer cases and
motherboards vary, refer to your computer’s reference
manual for further information, if needed.
Static Electricity Discharge may permanently damage
your system. Discharge any static electricity build up in
your body by touching your computer’s case for a few
seconds. Avoid any contact with internal parts and
handle cards only by their external edges.
1. Turn OFF the power to your computer and any
other connected peripheral devices.
2. Unplug the power cord from the back of the
computer.
3. Remove your computer’s cover.
4. Remove the slot bracket from an available PCI slot.
5. Change JP1 and JP2 jumper settings to the desired
voltage only if your serial device needs additional
power from the serial port. However, most serial
devices do not require additional power. For more
information see Figure 1 on page 2. The jumpers
can be removed if power output is not required.
6. To install the card, carefully align the card's bus
connector with the selected PCI slot on the
motherboard. Push the board down firmly, but
gently, until it is well seated.
7. Replace the slot bracket's holding screw to secure
the card.
8. Replace the computer cover and reconnect the power
cord.

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Driver Installation
This section provides information on how to install the
CyberSerial Dual PCI drivers.
DOS
1. Boot up DOS and insert the driver CD.
2. Copy OXSER.EXE from the DOS folder to your C:
drive.
3. At the C: prompt, type in OXSER io=3e8 and the
serial ports will be set up as COM3 and COM4.
If your system already comes with 4 serial ports
enabled, type in OXSER io=220 instead and the
ports will be set up as COM5 and COM6.
4. Copy the OXSER command in step 3 into your
autoexec.bat and restart your system.
Windows 95
1. At the Update Device Driver Wizard, click Next.
2. Insert the driver CD, and click Other Locations.
Type in D:\9x, click OK, then Finish. (Change D: to
match your CD-ROM drive letter)
3. From the Insert Disk window, click OK. When the
Copying Files dialog box appears, type in
D:\9x, then click OK.
4. Restart Windows to complete the installation.
Windows 98/98SE
1. At the Add New Hardware Wizard, click Next.
2. Select Search for the best driver for your device
(Recommend), then click Next.