StarTech.com PCI2S232485I User manual

PCI Serial Adapter
2-Port PCI to RS232/422/485
Serial Adapter Card with ESD
Protection
PCI2S232485I
Instruction Manual

FCC Compliance Statement
This equipment has been tested and found to comply with the limits for a Class B digital
device, pursuant to part 15 of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference in a residential installation. This
equipment generates, uses and can radiate radio frequency energy and, if not installed
and used in accordance with the instructions, may cause harmful interference to radio
communications. However, there is no guarantee that interference will not occur in a
particular installation. If this equipment does cause harmful interference to radio or
television reception, which can be determined by turning the equipment off and on, the
user is encouraged to try to correct the interference by one or more of the following
measures:
Reorient or relocate the receiving antenna.•
Increase the separation between the equipment and receiver.•
Connect the equipment into an outlet on a circuit different from that to which the receiver•
is connected.
Consult the dealer or an experienced radio/TV technician for help.•
Use of Trademarks, Registered Trademarks, and other Protected Names and Symbols
This manual may make reference to trademarks, registered trademarks, and other
protected names and/or symbols of third-party companies not related in any way to
StarTech.com. Where they occur these references are for illustrative purposes only
and do not represent an endorsement of a product or service by StarTech.com, or an
endorsement of the product(s) to which this manual applies by the third-party company
in question. Regardless of any direct acknowledgement elsewhere in the body of
this document, StarTech.com hereby acknowledges that all trademarks, registered
trademarks, service marks, and other protected names and/or symbols contained in this
manual and related documents are the property of their respective holders.

i
Table of Contents
Introduction.................................................................. 1
Packaging Contents...................................................................... 1
System Requirements .................................................................. 1
Installation.................................................................... 2
Hardware Installation .................................................................... 2
Driver Installation .......................................................................... 2
How to Use ................................................................... 3
Mode Settings............................................................................... 3
Transmission Echo........................................................................ 4
Termination Resistor .................................................................... 4
Pinout Diagram ............................................................ 5
RS232........................................................................................... 5
RS422/485.................................................................................... 5
Specifications............................................................... 6
Technical Support........................................................ 7
Warranty Information................................................... 7

1
Introduction
The StarTech.com PCI to RS232/422/485 Serial Adapter Card is a universal
all-in-one PCI Serial adapter card that allows you to turn a PCI or PCI-X slot
into 2 serial ports capable of communicating in RS-232, RS-422, or RS-
485. Featuring 2,500Vrms Isolation and 15KV ESD protection and two DB9
serial ports that can be independently configured to support RS-422, RS-
485 2-wire, RS-485 4-wire, or RS-232 mode up to a maximum baud rate of
921.6Kbps per port.
Packaging Contents
1 x PCI2S232485I adapter card•
1 x Driver CD•
1 x Instruction Manual•
System Requirements
PCI enabled computer system with available PCI slot•
Microsoft• ®Windows®XP/Server 2003/Vista/Server 2008 R2/7 (32/64-bit),
or Windows XP Embedded/POSReady 2009/CE 4.x/5.0, or Linux®

2
Installation
WARNING! PCI cards, like all computer equipment, can be severely damaged by static electricity. Be
sure that you are properly grounded before opening your computer case or touching your PCI card.
StarTech.com recommends that you wear an anti-static strap when installing any computer component. If
an anti-static strap is unavailable, discharge yourself of any static electricity build-up by touching a large
grounded metal surface (such as the computer case) for several seconds. Also be careful to handle the
PCI card by its edges and not the gold connectors.
Hardware Installation
Turn your computer off and any peripherals connected to the computer (i.e. Printers, external hard1.
drives, etc.). Unplug the power cable from the rear of the power supply on the back of the computer
and disconnect all peripheral devices.
Remove the cover from the computer case. Refer to documentation for your computer system for2.
details.
Locate an open PCI or PCI-X slot and remove the metal cover plate on the rear of the computer case.3.
Set the jumpers on the card to the desired configuration. See “How to Use” section for jumper4.
descriptions.
Insert the card into the open PCI or PCI-X slot and fasten the card’s bracket to the rear of the case.5.
Place the cover back onto the computer case.6.
Insert the power cable into the socket on the power supply and reconnect all other connectors removed7.
in Step 1.
Driver Installation
Windows XP/Server 2003
When the Found New Hardware wizard appears on the screen, insert the Driver CD into your CD/DVD1.
drive. If you are prompted to connect to Windows Update, please select the “No, not this time” option
and click Next.
Select the option “Install Drivers Automatically (Recommended)” and then click the Next button.2.
Windows should now start searching for the drivers. Once this has completed, click the Finish button.3.
Windows Vista/Server 2008 R2/7
When the Found New Hardware window appears on the screen, click on the “Locate and install drivers1.
software (recommended)” option. If prompted to search online, select the “Don’t search online” option.
When prompted to insert the disc, insert the Driver CD that came with the card, into your CD/DVD drive2.
and Windows will automatically proceed to search the CD.
If a Windows Security dialog window appears, click the “Install this driver software anyway” option to3.
proceed.
Once the driver is installed, click the Close button.4.

3
JP1, JP2 jumpers
JP4, JP5 jumpers
DB9 male
connectors
How to Use
Mode Settings
There are two jumpers for each port that are used to set its operation mode. JP1/JP2 for Port 1 (S1) and
JP4/JP5 for Port 2 (S2).
JP2 (for S1 port) / JP5 (for S2 port) JP1 (for S1 port) / JP4 (for S2 port) Description
RS485 - 2-wire
(Default)
RS485 4-wire
RS422
RS232

4
Transmission Echo
This jumper determines if transmission data will be echoed back. The Echo mode is useful to detect
if the RS485 bus has data collision. If the echoed data is not equal to the transmitted data, then there
is collision. This setting only affects the RS485 2-wire mode. It doesn’t affect RS485 4-wire, RS422 or
RS232 modes.
JP2 (for S1 port)/JP5 (for S2 port) Description
No data echo.
(Default)
Transmission data will be echoed back
Termination Resistor
This jumper enables/disables the 120 Ohm termination resistor between DATA+ and DATA- of the RS485
transceiver:
JP2 (for S1 port)/JP5 (for S2 port) Description
Termination Resistor Disabled
(Default)
Termination Resistor Enabled
NOTE: All other headers and jumpers on the card that are not documented, should not be altered/used.

5
Pinout Diagram
RS232 RS422(4-wire)/485 (4-wire/2-wire)

6
Specications
Bus Interface PCI revision 2.2
(3.3/5V slot connector)
Form Factor Full Profile
Chipset ID Oxford OXuPCI952
Connectors 2 x DB9 male
Supported Protocols RS232/422/485
Maximum Data Transfer Rate 921.6Kbps
Operating Temperature 0°C ~ 55°C (32°F ~ 131°F)
Storage Temperature -20°C ~ 85°C (-4°F ~ 185°F)
Humidity 5 ~ 95% RH
Dimensions (LxWxH) 121.0mm x 74.0mm x 18.0mm
Weight 100g
Compatible Operating
Systems
Windows XP/Server 2003/Vista/
Server 2008 R2/7 (32/64-bit),
CE 4.x/5.0, Linux

7
Technical Support
StarTech.com’s lifetime technical support is an integral part of our
commitment to provide industry-leading solutions. If you ever need
help with your product, visit www.startech.com/support and access
our comprehensive selection of online tools, documentation, and
downloads.
Warranty Information
This product is backed by a lifetime warranty.
In addition, StarTech.com warrants its products against defects in
materials and workmanship for the periods noted, following the initial
date of purchase. During this period, the products may be returned
for repair, or replacement with equivalent products at our discretion.
The warranty covers parts and labor costs only. StarTech.com does
not warrant its products from defects or damages arising from misuse,
abuse, alteration, or normal wear and tear.
Limitation of Liability
In no event shall the liability of StarTech.com Ltd. and StarTech.com USA
LLP (or their officers, directors, employees or agents) for any damages
(whether direct or indirect, special, punitive, incidental, consequential, or
otherwise), loss of profits, loss of business, or any pecuniary loss, arising
out of or related to the use of the product exceed the actual price paid
for the product. Some states do not allow the exclusion or limitation of
incidental or consequential damages. If such laws apply, the limitations
or exclusions contained in this statement may not apply to you.

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