SIIG 2-Port USB to RS-232 Serial Adapter User manual

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2-Port USB to RS-232
Serial Adapter
Quick Installation Guide
04-0725A
Introduction
The 2-Port USB to RS-232 Serial Adapter adds two
9-pin serial ports to your USB-equipped system.
Key Features and Benefits
• Supports data transfer rate up to 230Kb/s
• USB plug-n-play and bus-powered
• Connectors: USB type-A (male); 2x 9-pin
RS-232 serial (male)
Serial Number Sticker
For future product return or exchange, this serial
number is required. Please keep it for your
reference.

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System Requirements
• USB equipped computer with an available
USB port
• Windows®7 (32-/64-bit) / Vista (32-/64-
bit) / XP (32-/64-bit) / Server 2003 & 2008
(32-/64-bit) / Server 2008 R2 / 2000
Package Contents
• 2-Port USB to RS-232 Serial Adapter
• Driver CD
• Quick installation guide
Layout
Figure 1: Layout
Activity LED
Type A USB
(to computer)
Serial ports

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Installation
Make sure the driver is installed before plugging
the Serial Adapter into the computer.
Windows 7 (32-/64-bit)
1. At the Windows desktop insert the driver
CD.
At the AutoPlay box: Click Run autorun.exe.
If AutoPlay doesn't start: Click Start, in the
Search programs and files box, type
D:\autorun.exe,then press Enter. (Change
D: to match your CD-ROM drive letter)
2. At USB to Serial Adapter screen, click Install
Driver, then click USB 2/4/8-Port Serial.
3. At User Account Control, click Yes.
4. At High-Speed USB MultiSerial Device
Drivers Setup box, click Install.
5. At High-Speed USB MultiSerial Device
Drivers Setup box prompt Installation
completed, click Exit.
6. Plug the Serial Adapter into an available
USB port and the drivers will install
automatically. The device is ready for use.

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Windows Vista (32-/64-bit)
1. At the Windows desktop insert the driver
CD.
At the AutoPlay box: Click Run autorun.exe.
If AutoPlay doesn't start: Click Start, in the
Search programs and files box, type
D:\autorun.exe,then press Enter. (Change
D: to match your CD-ROM drive letter)
2. At USB to Serial Adapter screen, click Install
Driver, then click USB 2/4/8-Port Serial.
3. Click Allow.
4. At High-Speed USB MultiSerial Device
Drivers Setup box, click Install.
5. At High-Speed USB MultiSerial Device
Drivers Setup box prompt Installation
completed, click Exit.
6. Plug the Serial Adapter into an available
USB port and the drivers will install
automatically. The device is ready for use.

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Windows XP (32-/64-bit) / Server 2003 (32-/
64-bit) / 2000
1. At the Windows desktop insert the driver
CD.
Note: Most systems will start installing the
driver once the driver CD is inserted. If so,
skip step #2 and go directly to step #3.
2. If AutoPlay doesn't start, click Start, Run,
type D:\autorun.exe, then click OK.
(Change D: to match your CD-ROM drive
letter).
3. At USB to Serial Adapter screen, click Install
Driver, then click USB 2/4/8-Port Serial.
4. At High-Speed USB MultiSerial Device
Drivers Setup box, click Install.
5. At High-Speed USB MultiSerial Device
Drivers Setup box prompt Installation
completed, click Exit.
6. Plug the Serial Adapter into an available
USB port and the drivers will install
automatically. The device is ready for use.

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Windows Server 2008 (32-/64-bit) / 2008 R2
1. At the Windows desktop insert the driver
CD.
At the AutoPlay box: Click Run autorun.exe.
If AutoPlay doesn't start: Click Start, in the
Search programs and files box, type
D:\autorun.exe,then press Enter. (Change
D: to match your CD-ROM drive letter)
2. At USB to Serial Adapter screen, click Install
Driver, then click USB 2/4/8-Port Serial.
3. Click Allow.
4. At High-Speed USB MultiSerial Device
Drivers Setup box, click Install.
5. At High-Speed USB MultiSerial Device
Drivers Setup box prompt Installation
completed, click Exit.
6. Plug the Serial Adapter into an available
USB port and the drivers will install
automatically. The device is ready for use.

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To Verify Installation
1. Check Device Manager to verify
installation.
For Windows 7: Right click Computer, click
Manage.
For Windows Vista: Right click Computer,
click Manage, click Continue.
For Server 2008 / 2008 R2: Right click
Computer, click Manage, double click
Diagnostics.
For XP / Server 2003 / 2000: Right click My
Computer, click Manage.
2. Click Device Manager.
3. Double click Ports (COM & LPT), two
High-Speed USB Serial Port... should be
displayed.

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Changing COM Port Number
Some serial devices need a specific COM port in
ordertowork. Ifyourserialdeviceworksproperly,
do not change this setting.
1. FromDeviceManagerdoubleclickPorts
(COM & LPT), then double click the
High-Speed USB Serial Port port you
want to change.
2. Click Features tab.
3. Click the down arrow that is next to the
COM Port Number drop down box and
select a COM port that is not in use.
4. Click OK to save the changes.
5. Unplug the Serial Adapter from the USB
port, then re-plug the Serial Adapter into
the same USB port to enable the changes.

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