StarTech.com PEX8S950LP User manual

Manual Revision: 02/01/2012

For the most up-to-date information, please visit: www.startech.com

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PEX8S950LP

8 Port PCI Express Low Prole Serial

Adapter Card

*actual product may vary from photos

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 o 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 dierent 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.

Instruction Manual

Table of Contents

Introduction............................................................................................1

Packaging Contents ................................................................................................................................. 1

System Requirements.............................................................................................................................. 1

Hardware Guide .....................................................................................2

Installation ..............................................................................................5

Software Installation................................................................................................................................ 5

Conguration..........................................................................................6

Specications..........................................................................................7

Connector Pin Assignments.................................................................................................................. 7

General Specications............................................................................................................................. 8

Technical Support ..................................................................................9

Warranty Information............................................................................9

Instruction Manual

Introduction

The PEX8S950LP 8 Port PCI Express Low Prole Serial Adapter Card with dongle cables

included oers 8 RS 232 Serial connections via a single PCI Express slot, with data

rates up to 921Kbps. Perfect for use with a broad variety of serial peripherals including

printers, scanners, industrial controls and more.

A complete 8 port RS232 Serial card solution, the adapter includes 2 breakout cables –

each with 4 DB9 connectors for a total of 8 ports. The perfect choice for adding several

additional ports when space is at a premium, the serial adapter card is designed to

t in small/micro form factor computer cases. Plus, this versatile card also includes 2

standard prole brackets for compatibility with full size cases.

Backed by a StarTech.com Lifetime warranty and free lifetime technical support.

Packaging Contents

• 8 Port PCI Express Serial Card

• 2x Breakout Cables

• 2x Standard Brackets

• Driver CD

• Instruction Manual

System Requirements

• A PC with an available PCI Express slot

• Windows® 7 (32/64bit)/ Vista(32/64)/ XP(32/64)/ 2000/ 98SE/ CE 5.0 Windows® Server

2008 R2/ 2003(32/64) Linux 2.4.x/ 2.6.x

Instruction Manual

Hardware Guide

JP1 - COM Ports Swapping Selector - Used to swap Serial Ports 1-4 and 5-8. Unless

necessary, maintain default setting.

No Swapping.

The COM ports

will be mapped

from S1 to S8 as

normal.

The COM ports will be

swapped as follows,

where S designates the

port number:

S1 S5

S2 S6

S3 S7

S4 S8

S5 - S8 DB44 Pin

Connector to 4-port

breakout cable

(Ports 5-8)

JP 3-Power over

Serial Connectors

Enable/Disable

(Ports 1-4)

S1 - S4 DB44 Pin

Connector to 4-port

breakout cable

(Ports 1-4)

JP1 - Ports 1-4,

5-8

Swap Jumpers

J3 -

Auxilliary

Power

Connector

JP4 - Auxilliary

Power Source

Selector

JP5 - Power

over Serial

Connectors

Enable/Disable

(Ports 5-8)

Instruction Manual

Default

Pin #9

connected

to power

JP3, JP5 - External Power Enable/Disable Selector - JP3 is used to set pin #9 of DB9

connectors S1-S4 to either the RI (Ring Indicator Signals) or the 5V/12V DC Power

(selected by JP4). JP5 performs the same function for DB9 connectors S5-S8. When

the jumper is set to the “P” position, it will output the DC power over pin #9; if set to

the “D” position, pin #9 will be connected to the normal RI signal, based on the RS232

standard.

JP4 - Power Source Selector - Used to select DC power for pin #9 of the DB9

connectors. This can be set from PCI Express 12V or 12V (or 5V) from the 4-pin auxilliary

power connector.

Default

Power source is set to

+12VDC from the PCI

Express slot

Power source is set to

+5VDC from J3

auxilliary power

connector

Power source is set to

+12VDC from J3

auxilliary power

connector

Instruction Manual

JP2 - Baud Rate Selector - Used to control the baud rate clock input of the UARTs.

There are two positions:

Lo (factory default) - The clock is set to 1.8432MHz, with a maximum baud rate of

115.2Kbps.

Hi - The clock is set to 14.7456MHz, with a maximum baud rate of 921.6Kbps. Please

see the section entitled Conguration for more information.

Baud Rate Clock

set to1.8432MHz

(Low Speed)

Baud Rate

Clock set to

14.7456MHz

(High Speed)

Instruction Manual

Installation

WARNING! PCI Express 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 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 card by its edges and not the

gold connectors.

1. Turn OFF the computer power before installation.

2. Remove the chassis cover from your computer.

3. Locate an unused PCI Express slot and remove the corresponding slot cover from

rear panel of the computer chassis. Retain the screw (if applicable) used to hold the

slot cover in place.

4. Align the PCI Express card with the unused PCI Express expansion slot. Applying

pressure evenly across the top edge of the expansion card, rmly but gently insert the

card into the slot, ensuring that the card is properly aligned with the rear panel slot.

5. Secure the card to the motherboard and rear chassis using the screw removed in

step 3 (if necessary). Secure the additional serial port provided by the daughter

board (smaller circuit board to an adjacent rear bracket.

6. Replace the chassis cover (removed in step 2).

7. Connect the 4-port breakout (octopus) cables to the ports provided by PEX8S950LP.

8. Power on the computer. Once the computer has been rebooted, the operating

system will detect that the PCI Express card has been installed and request driver

installation, detailed in the next section.

Software Installation

To install the necessary drivers for use with PEX8S950LP,

simply insert the Driver CD into the CD/DVD-ROM drive

on the host computer, and follow the prompts provided

by the operating system. When asked to specify the

location of the les, please select Browse and guide the

Hardware Wizard to the exact folder location where the

driver is located. (E:\IO\OXFORD\NT4 folder where E: is

the CD/DVD-ROM drive).

Allowing Windows to search for the le may result in the

incorrect le being installed, as the Driver CD contains

several versions of the necessary software. As such, please

pay particular attention when designating the folder from

which to install the driver les.

Instruction Manual

Conguration

Once installation is complete, you will be able to congure the port(s) provided by the

card, as you would any other serial port. To do so, click on Start, then right-click on

Manage to open the Computer Management window.

1. In the left pane, click on Device Manager. Here, you should see two listings for PCI

Communications Port as illustrated below.

2. Right-click on the rst listing and select properties, to launch the PCI

Communications Port Properties window.

3. Click on the Data Rate tab, and click on Detect Clock Frequency to automatically

detect the port data transfer capability, then select OK.

4. Repeat steps 1-3 to congure the second added port.

Instruction Manual

Specications

Connector Pin Assignments

Port 1 Port 2 Port 3 Port 4

42 DCD1 39 DCD2 35 DCD3 31 DCD4

14 RXD1 10 RXD2 6RXD3 2RXD4

13 TXD1 9TXD2 5TXD3 1TXD4

29 DTR1 25 DTR2 21 DTR3 17 DTR4

44 GND 41 GND 37 GND 33 GND

30 DSR1 26 DSR2 22 DSR3 18 DSR4

15 RTS1 11 RTS2 7RTS3 3RTS4

28 CTS1 24 CTS2 20 CTS3 16 CTS4

43 RI1(*) 40 RI2(*) 36 RI3(*) 32 RI4(*)

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