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USB-2-485

Interface Converter

Version: 1.00

April 16

th

, 2006

Trinamic Motion Control GmbH & Co. KG

Sternstraße 67

D - 20357 Hamburg, Germany

Phone +49-40-51 48 06 - 0

FAX: +49-40-51 48 06 - 60

http://www.trinamic.com

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Summary of Contents for USB-2-485

Page 1: ...USB 2 485 Interface Converter Version 1 00 April 16th 2006 Trinamic Motion Control GmbH Co KG Sternstraße 67 D 20357 Hamburg Germany Phone 49 40 51 48 06 0 FAX 49 40 51 48 06 60 http www trinamic com ...

Page 2: ... 48 06 0 FAX 49 40 51 48 06 60 http www trinamic com Version Version Date Author Comment 1 00 16 Apr 06 GE Initial version Contents 1 Introduction 3 2 The USB 2 485 Hardware 4 2 1 Overview 4 2 2 Connectors 4 2 2 1 USB 4 2 2 2 RS485 5 2 3 Technical Data 7 2 3 1 USB 7 2 3 2 RS485 7 2 3 3 Housing 7 3 Software Installation 8 ...

Page 3: ...nal power supply is required as the device is powered through the USB bus The software supplied with this product can be used with all versions of the Microsoft Windows operating system that supports USB Windows 98 Windows ME Windows 2000 Windows XP Windows 95 and Windows NT4 0 do not support USB and therefore are not supported A virtual COM port driver is included that is the RS485 interface can ...

Page 4: ...ectors a USB type B connector for connecting the device to a PC and a 9 pin D SUB male connector for connecting it to a 2 wire half duplex RS485 bus Figure 1 Overview 2 2 Connectors 2 2 1 USB The USB interface is a USB 2 0 full speed 12Mbit s device interface which is USB 2 0 and USB 1 1 compatible Pin Function 1 VBUS 5V 2 D 3 D 2 1 3 4 4 GND Table 1 USB type B connector pin assignment Type B USB ...

Page 5: ... is a multi master bus with one master being active at a time According to ISO8482 up to 32 masters are supported and line lengths of up to 500m With current transceiver technology even more than these 32 devices are possible For proper operation with longer wires line termination at both ends of the bus is required One termination resistor 120 Ohm is already included with the USB 2 485 device for...

Page 6: ...85A to 5V and another 1k Ohm resistor from RS485 RS485B to GND Figure 2 This will always ensure a valid and stable level on the bus In contrast to the termination resistor there is no need to add these two resistors also at the other end of the bus If one of these resistors is not required desired they may be removed pleas find the location of the resistors in Figure 2 Figure 2 Internal resistor n...

Page 7: ...ex communication mode No loopback receiver is switched off while transmitter is active 120 Ohm termination resistor Pull up resistor 1k Ohm between RS485 and 5V and pull down resistor 1k Ohm between RS485 and GND will ensure a valid signal level on the RS485 bus even if there is no active transmitter 2 3 3 Housing Compact metalized standard housing know as 9 pin Sub D adapter housing Dimensions 68...

Page 8: ...ble device driver Please note that you have to be logged in with administrator privileges in order to be able to install the device driver on Windows 2000 or Windows XP systems The device driver installation process will be shown here for Windows XP systems only but the required steps will be similar for other Windows operating systems too After connecting the USB 2 485 to a spare USB port on your...

Page 9: ...ystems USB 2 485 Please add this path as shown below and continue If Windows XP is configured to warn when unsigned drivers are about to be installed a warning will be displayed Please click on Continue Anyway The necessary files will then be copied and driver installation should finish with the folling screen Click on Finish and the Found New Hardware Wizard will continue with the installation of...

Page 10: ...ing the driver open the device manager located in Control panel System select the Hardware tab and click Device Manager The new device will appear as an additional COM port with the label USB serial port Now you can access your USB 2 485 device as a standard COM port E g you may use the terminal program HyperTerminal supplied with Windows in order to send and receive data over the RS485 interface ...

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