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USB to RS-422/485 Converter Quick Installation Guide Introduction The USB to RS-422/485 Converter is designed to convert USB signals to RS-422/485 compatible signal. Features and Benefits • Auto detect between RS-422 or RS-485 signal • Zero jumper configuration • 15KV ESD immunity, surge protection and short circuit protection •...
Package Contents • USB to RS-422/485 Converter • USB cable • Quick installation guide Layout Power port RS-422/485 Signal to Target Device Figure 1: Top Layout Tx LED Dip switch Rx LED 1 2 3 4 Figure 2: Side Layout DIP Switch You can change the DIP switch to avoid impedance mismatched problems.
RS-422 or 4-wire RS-485 working model with termination resistor: Device Serial Adapter 2-wire RS-485 working model with termination resistor: Serial Adapter Device Pin Assignment Refer to Figure 2 for the position of pin 1-4, then refer to Table 1 below for pin assignment. Table 1...
Driver Installation This section provides information on how to install the USB to RS-422/485 drivers. Windows 8 (32-/64-bit) / 7 (32-/64-bit) / Vista (32-/ 64-bit) / XP (32-/64-bit) / Server 2003 & 2008 (32-/ 64-bit) / Server 2008 R2 Important: Do not plug the USB to RS-422/485 Converter into the computer until instructed to do so.
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Windows 2000 Important: Do not plug the USB to RS-422/485 Converter into the computer until instructed to do so. Plugging in the converter prematurely will cause the driver installation to fail. If you have already plugged the converter into the computer, please unplug it before proceeding to step 1.
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To Verify Installation Check Device Manger to verify installation. For Windows 8 / 7 / XP / Server 2003 / 2000: Right click Computer or My Computer, click Manage, then click Device Manager. For Windows Vista: Right click Computer, click Manage, click Continue, click Device Manager.
(5) years from the date of purchase of the product. SIIG will, at our discretion, repair or replace (with an identical product or product having similar features and functionality) the product if defective in materials or workmanship.
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Fremont, CA 94538-3152, USA Phone: 510-657-8688 USB to RS-422/485 Converter is a trademark of SIIG, Inc. SIIG and the SIIG logo are registered trademarks of SIIG, Inc. Microsoft and Windows are registered trademarks of Microsoft Corporation. All other names used in this publication are for identification only and may be trademarks of their respective owners.
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