User Manual
Contents
1. What do you want the wizard to do Install the software automatically Recommended Install from a list or specific location Advanced Click Next to continue The following dialogue of path selection will be shown and please select Don t search I ll select the driver to be installed by myself D and click Next Hardware Update Wizard Please choose your search and installation options Search for the best driver in these locations Use the check boxes below to limit or expand the default search which includes local paths and removable media The best diver found will be installed iM Search removable media Moppi EEA PT laclude this locaton in the search F ki Browse Choose this option to select the device driwer from a list Windows does not guarantee that the diver you choose will be the best match for your hardware Then the hardware type dialogue will be shown and please scroll to Universal serial bus controller and click Next Add Hardware Wizard Show All Devices Display adapters IDE ATA ATAPI controllers gpp IEEE 1394 Bus host controllers 35 Imaging devices dal Infrared devices Be Modems Universal Senal Bus Controllers The dialogue of select the device driver you want to install for this hardware will be shown and please click Have Disk Hardwa re Update Wizard Select the device driver you want to install for2. Welcome to the Hardware Update Wizard This wizard helps you install software for USB Serial Port ff your hardware came with an installation CD lt a or floppy disk insert it now What do you want the wizard to da Install the software automatically Recommended Install from a list or specific location Advanced Click Next to continue The system has found the hardware installation information of the USB Serial Port as shown in the figure below then click Next Hardware Update Wizard Select the device driver you want to install for this hardware Select the manufacturer and model of your hardware device and then click Next f you have a disk that contains the driver you want to install click Have Disk IY Show compatible hardware USB Serial Converter G This driver is digitally signed Have Disk Tell me why driver signing is i ning is importam 12 The USB Serial Port installation wizard is completed just as shown in the following figure Now the driver of UT 8814 has been installed completely Hardware Update Wizard Completing the Hardware Update Wizard The wizard has finished installing the software for oe USB Seral Port Click Finish to close the wizard lt Beck Eancel After the driver has been installed correctly please have a look at the device manager to make sure whether there is virtual CO
3. USB port of computer before the installation of UT 861 interface converter USB DB9 connectors are adopted for the input output terminal and twisted cable or screened cable can be used RS 422 or RS 485 communication mode can be implemented without any configuration and the connection and disassembly are very convenient T R and T R represent transmit and receive A B RXD RXD represent receive A B GND means common ground T R and T R should be connected for point to point point to multipoint half duplex communication and T R T R RXD RXD should be connected for point to point point to multipoint full duplex communication 4 Performance Parameters 1 Standards Conforming to USB1 1 1 0 and 2 0 standards and EIA RS 485 and RS 422 standard 2 USB signals VCC DATA DATA GND FG 3 RS 485 signals T R T R GND 4 RS 422 signals T R T R RXD RXD GND 5 Operating mode Asynchronous mode point to point or point to multipoint mode 2 wire half duplex 4 wire full duplex 6 Data flow control Automatic data flow control technique is adopted to automatically determine and control the data flow 7 Baud rate 300 128000bps automatically detecting the data rate 8 Load capacity point to multipoint communication mode is supported maximum 128 RS 422 or RS 485 devices are supported 9 Communication distance 5000 meters for RS 485 422 interface 128000bps 9600bps and no more than 5 meters for the USB port 10 In
4. is the driver path and then please click OK Hardware Update Wizard Select the device driver you want to install for this hardware Insert the Installation disk from the Manufacuturer then make sure to choose the right drive below 10 The system has found the hardware installation information of the USB Serial Converter as shown in the figure below then click Next Hardware Update Wizard Select the device driver you want to install for this hardware Select the manufacturer and model of your hardware device and then click Next f you have a disk that contains the diver you want to install click Have Disk I Show compatible hardware Saf USB Serial Converter G This driver is digitally signed Have Disk Tell me why driver signing is important The USB Serial Converter installation wizard is completed just as shown in the following figure Then the system will detect the USB Serial Port automatically and show the New hardware found wizard Hardware Update Wizard Completing the Hardware Update Wizard The wizard has finished installing the software for a USB Root Hub Click Finish to close the wizard ance l 1 The following dialogue shows the new hardware wizard of USB Serial Port Please click Next and the following steps are just the same as the wizard of USB Serial Converter so we won t describe it in detail here Hardware Update Wizard
5. this hardware for this device is found Then the dialogue of install form hard disk will be shown and please click browse to select the path of driver Select the device driver you want to install for this hardware Install From Disk The dialogue of find files will pop up and then select the CD path Open it as shown in the following figure or double click it Lo ca te File REF Desktop 7 p aa i WOCUMENLS Select the driver of installed converter type as shown in following figure Click the folder of UT 861 and open it then select PCDriver folder L cate File PCL ssc My Recent aaa E vr 2005 OCUMENLS UT B20 E Syur s30 Desktop My Documents ES terccte 8 Svr eet h Wy Computer E Ua EorL E Filename Places Select the appopriate operating system such as windows xp and select Winxp 2003 2000 and click to open it or double click it Locate File Lookin 0 FC Driver My Recent Desktop My Documents ra Sr My Computer a My Network Places In the popped up dialogue select FTDIBUS INF and click it to open it then a new dialogue with selected FTDIBUS file will be shown Locate File Look in WINXP 2003 2000 My Recent Documents Desktop My Documents ar My Computer ia Lo DA eueL g Filename FIDIBUS INF Places ne ee Files of type Setup Information inf Following
6. M port If it s the first time to install the USB driver on this system then the default COM ports are COM3 4 5 6 as shown in the following figure Up to now the driver of UT 861 has been installed successfully E Device Manager lgj x Fie Acton view Help 7 eS Ow a we CVO E21 5000 i Computer ae Disk drives B Depay adapters pagn jem mma d OA Tres E Floppy dsk controfers tig Human Interface Devies io IDE ATASATAP contrioiens gt Keyboards T5 Mice and other pointing devices ie orators Mp febwork adapters J Ports COM ALPT i ECP Printer Fon LPT aF USB Seral Pon COMI JF USB Serai Pon COMA a USE Serial Por COMS Y USB Serial Pon COMB a Communication Poet COM BP Processors d SCSI and RAID controfers Sound video and game contraders Sytem devices muerta Serial Flue contirakers its 1 Ht A 8 B FTE Li 4 Ce
7. Model UT 861 USB RS 485 RS 422 4Port Industrial Grade Opto Isolated Interface Converter Users Manual Instruction Manual Content 1 OvervieW 2 2 Main functions 2 3 Hardware installation and application 2 4 Performance 3 5 Connector and signal 3 6 Communication connection wiring diagram 4 7 Troubleshooting 5 8 Product appearing diagram 5 9 Steps of driver installation 6 13 1 Overview USB interface is gradually replacing the old fashioned low speed peripheral interfaces of PC with the continuous development of PC industry But many vi
8. gh male DB9 connector It has built in automatic transmit receive switch without time delay The unique I O circuit can be used to automatically control the direction of data flow without any hand shaking signals such as RTS and DTR and full duplex RS 422 and half duplex RS 485 can be implemented without jumper configuration so as to make it plug and play and applicable to all existing communication software and interface hardware UT 861 industrial photoelectric isolated interface converter can provide reliable connection for point to point or point to multipoint communication Maximum 128 RS 422 or RS 485 interface devices can be supported for the point to multipoint communication Data communication rate can be 300 128000BPS and the power indicator light and data traffic indicator light can be used for malfunction indication USB to RS 422 and USB to RS 485 conversions are supported 2 Main Features Following communication modes are supported by UT 861 interface converter 1 Point to point 4 wire full duplex 2 Point to multipoint 4 wire full duplex 3 Point to point 2 wire half duplex 2 Point to multipoint 2 wire half duplex When the converter is connected for full duplex or half duplex communication a matching resistor 120 Ohm 1 4W should be connected to the wire terminal for avoiding signal reflection and interference 3 Hardware Installation and Application Please read this manual thoroughly and connect the USB cable to the
9. point to point 2 wire half duplex 2 RS 485 point to multipoint 2 wire half duplex UT 861 RS 485 device 3 Half duplex communication connection between UT 861 interface converters UT 861 UT 861 RS 485 device 7 Faults and trouble shooting 1 Data communication fails A Check the USB cable connection B Check the RS 485 RS 422 connection C Check the power supply D Check the connection of terminals E Check if the receiving indication light flashes when receiving data F Check if the transmitting indication light flashes when transmitting data 2 Data lost or error A Check if the data rates and format of both communication devices are identical 8 Appearing diagram 3 A pie VETEK USB TO 4 Por RS 485 Hub de O Tad Txt Tr O Tx4 rami PARE Oka he ea ka MODEL UT 561 Oce dey Port 1 Port 2 Port 3 Port 4 E GWV H r 4 cy Ce nT am i ot a aU k i i PRS RE m ae a EEJ ph e 1 zi 8 i J l he t e J 3 pa a gs 9 Steps of driver installation Following dialogue will pop up automatically when the UT 861 is connected to PC Please select install from list or specified location For advanced user and click Next Hardware Update Wizard Welcome to the Hardware Update Wizard This wizard helps you install software for USB lt gt Seral Cable ff your hardware came with an installation CD lt a or floppy disk insert it now
10. tal devices in current industrial environment is still designed using RS 485 RS 422 interface so the USB to RS 485 RS 422 converters are needed to transfer data between PC and RS 485 RS 422 devices UT 861 is a universal USB RS 485 422 converter which doesn t need external power supply and has built in opto isolator and DC DC power isolation module It is compatible with USB RS 422 and RS 485 standards and it can convert single end USB signal to balanced differential RS 422 or 485 signal The built in photoelectric isolator can provide isolating voltage up to 2500Vrms and it equips with high speed transient voltage supressor which is designed to protect the RS 422 RS 485 interface The advanced TVS TRANSIENT VOLTAGE SUPPRESSOR presents high impedance state under normal conditions and it can rapidly decrease the resistance between its two ends while it s withstanding transient high power impulse so as to absorb the high current and clamp the voltage across it to a preset value and then the following components will not be damaged by the transient high voltage impulse This suppressor can effectively restrain lightning and ESD electro static discharge with lightning surge protection power of 600W for each line and it also can restrain surge voltage and transient over voltage on the lines for any reason Extremely small interelectrode capacitance ensures high speed data transmission of RS 422 RS 485 interface The RS 422 RS 485 end is connected throu
11. terface protection 600W lightning and surge protection for each port 15KV ESD portection 11 Isolation degree 2500 Vrms isolation voltage for each port 5 00DC contineous specialized DC DC module 12 Isolation type master slave isolation slave slave isolation 13 Interface connection B type female connector at USB side and DB9 male connector at RS 485 422 side 14 Signal indication 9 signal indicator lights Power PWR transmit TXD receive RXD 15 Transmission media twisted pair or shielded cable 16 Baudrate 128000bps to 300M 38400bps to U2 4KM 9600bps to USKM 17 Dimension 210mmX130mmX32mm 18 Environmental parameters temperature of 25 C to 70 C relative humidity of 5 to 95 19 Supported OS Win98 Win2000 WinXP Win7 Linux 5 Connector and signals 1 DB9 PIN type signal output and pin assignment of RS 485 RS 422 DB9 PIN type PIN Signal output RS 422 full duplex RS 485 half duplex connection connection 7 DB9 PIN type 1 USB B type USB signal input and pin assignment DATA Voc Ex H DATA GND Pa i 6 Communication Wiring Diagram PUSB to RS 422 conversion 1 RS 422 point to point 4 wire full duplex 2 RS 422 point to multipoint 4 wire full duplex communication communication PC USB UT 861 RS 422 device 3 full duplex communication connection between UT 861 interface converters A E lt PC2 USB RS 422 device PUSB to RS 485 conversion 1 RS 485
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