Sena DirectPort-USB User manual

DirectPort-USB
USB-Serial Converters
User Guide
Rev 1.0.0
Mar 8, 2010
Sena Technologies, Inc.

DirectPort-USB
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Copyright
Copyright 2010, Sena Technologies, Inc. All rights reserved.
Sena Technologies reserves the right to make changes and improvements to its product without providing
notice.
Trademark
Windows® is a registered trademark of Microsoft Corporation.
Notice to Users
When a system failure may cause serious consequences, protecting life and property against such
consequences with a backup system or safety device is essential. The user agrees that protection against
consequences resulting from system failure is the user's responsibility.
This device is not approved for life-support or medical systems.
Changes or modifications to this device not explicitly approved by Sena Technologies will void the user's
authority to operate this device.
Precautions and Safety
Do not drop or subject the device to impact. Damage to your products may result fromimproper use.
Keep away from harsh environments including humid, dusty, and smoky areas. Damage to your products
may result from improper use.
Do not attempt to disassemble the device. Damage to your products may result fromimproper use.
Do not place heavy objects on the product. Damage to your products may result fromimproper use.
Contact Information
Technical support email: [e-mail]
Company website: http://www.sena.com

DirectPort-USB
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Contents
1. Overview.................................................................................................................................................. 4
2. Specifications........................................................................................................................................... 5
3. DirectPort-USB UC1 Settings................................................................................................................... 6
3.1 DB9 Male Connector....................................................................................................................... 6
3.2 Line Connection for Terminal........................................................................................................... 6
3.3 Line Connection for Modem............................................................................................................ 6
4. DirectPort-USB UC1B (RS422/485) Settings............................................................................................ 7
4.1 DB9 Male Connector....................................................................................................................... 7
4.2 JP1 Slew: RS422/RS485 Slew Rate Limit Function Settings............................................................ 7
4.3 JP2 RT: RS422/RS485 Terminal Resistor Settings........................................................................... 7
4.4 JP3 RT: RS485 Echo/Non-echo Mode Settings ............................................................................... 8
4.5 JP4 422/485 SEL: RS422/RS485 Interface Settings........................................................................ 8
4.6 RS422 Point-to-Point/Multi-Drop Settings........................................................................................ 8
4.7 Line Connection for RS422 Point-to-Point....................................................................................... 8
4.8 Line Connection for RS422 Multi-Drop............................................................................................ 9
4.9 Line Connection for RS485 ............................................................................................................. 9
5. Driver Installation for Windows 98..........................................................................................................10
6. Automatic Driver Installation for Windows............................................................................................... 12
7. Manual DriverInstallation inWindows 2000/XP/2003............................................................................. 14
8. Manual Driver Installation for Windows Vista/2008.................................................................................. 19
9. Manual Driver Installation for Windows 7................................................................................................22
10. Windows Device Driver Setup.............................................................................................................. 26
11. RemovingWindows 98/2000/XP/2003 Driver........................................................................................29
12. Removing Windows Vista/2008/7 Driver............................................................................................... 33
13. Regulatory Information.........................................................................................................................36
FCC Compliance Statement................................................................................................................36
CE Declaration of Conformity.............................................................................................................. 36

DirectPort-USB
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1. Overview
DirectPort-USB is a high performance USB-to-Serial converter designed to provide serial connectivity (COM
port) via USB port. Users can easily add serial ports to PCs without or limited native serial ports. DirectPort-
USB supports RS232 or RS422/485 up to 921.6 Kbps and provides ESD protection up to ±15KV.

DirectPort-USB
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2. Specifications
Serial speed Up to 921.6 Kbps
Communication distance RS232 up to 15m, RS422/485 up to 1.2 Km
RS422/485 multi-drop Up to 127 nodes
Bus interface USB 2.0
Line interface RS232 or RS422/485
UART controller 16C550
Connector DB9 male
LED Tx, Rx
Dimension 33.4 mm X 61.0 mm (1.31 in X 2.40 in)
Weight 70 g
Surge protection Up to ± 15KV
Power Using USB interface power (no external power required)
Supported OS Windows 98/98SE/ME/2000/XP/2003
Windows Vista/Longhorn
Windows XP 64bit
Windows XP Embedded
Windows CE.NET 4.2 & 5.0
Windows Vista 64 bit
Windows 7
Windows 7 64 bit
Mac OS 8/9, OS-X
Linux 2.4 and greater (*)
Approval CE, FCC
Warranty 1-year limited warranty
*: If you would like to use DirectPort-USB for Linux, please contact [e-mail]

DirectPort-USB
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3. DirectPort-USB UC1 Settings
3.1 DB9 Male Connector
3.2 Line Connection for Terminal
3.3 Line Connection for Modem

DirectPort-USB
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4. DirectPort-USB UC1B (RS422/485) Settings
4.1 DB9 Male Connector
RS422 RS485 
4.2 JP1 Slew: RS422/RS485 Slew Rate Limit Function Settings
Select ‘Slew Rate Limit function on’ to reduce electromagnetic waves. Maximum serial
communication speed is restricted to 250Kbps when this function is on.
Slew Rate Limit allows communication without errors by activating slew-rate driver to reduce
reflection waves and EMI electromagnetic waves. However, communication speed is limited when it
is used.
4.3 JP2 RT: RS422/RS485 Terminal Resistor Settings
Off (Default) On
RS422 Terminal
Resistor
RS485 Terminal
Resistor
Unused
(Default)

DirectPort-USB
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4.4 JP3 RT: RS485 Echo/Non-echo Mode Settings
4.5 JP4 422/485 SEL: RS422/RS485 Interface Settings
4.6 RS422 Point-to-Point/Multi-Drop Settings
DirectPort-USB support auto-toggling data transfer, so there are no hardware settings.
4.7 Line Connection for RS422 Point-to-Point
Echo-Mode Non-Echo Mode
(Default)
RS422(Default) RS485

DirectPort-USB
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4.8 Line Connection for RS422 Multi-Drop
4.9 Line Connection for RS485
Terminal Resistor: 120 Ohm
There is no distinction of host and terminal in RS485

DirectPort-USB
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5. Driver Installation for Windows 98
1. Run Windows 98.
2. Connect DirectPort-USB to the USB connector of the PC.
3. Click “Next”.
4. Click “Next”