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Documentation Number 3PCI2-0903 Manual

Chapter 6

45

B&B Electronics Mfg Co – 707 Dayton Rd - PO Box 1040 - Ottawa IL 61350 - Ph 815-433-5100 - Fax 815-433-5104

B&B Electronics Ltd – Westlink Comm. Pk. – Oranmore, Galway, Ireland – Ph +353 91-792444 – Fax +353 91-792445

4-Wire RS-422 or RS-485 Connections

Figure 6.2

Note: With RS-422 Devices, connect only one device to computer.

Connect the TD(B) pin #2 on the computer to RD(B) on the device.

Connect the TD(A) pin #3 on the computer to RD(A) on the device.

Connect the RD(B) pin #9 on the computer to TD(B) on the device.

Connect the RD(A) pin #1 on the computer to TD(A) on the device.

Connect the Signal Ground pin #5 to Signal Ground on the device.

In a 4-wire RS-485 system, each receive line connects to the same
receive terminal on all slaves, and each transmit line connects to the
same transmit terminal on all slaves. The master to the first slave is
connected as above.

In a multi-slave RS-422 connection, TD(B) and TD(A) connect to
RD(B) and RD(A) on all the slaves. If the slaves have Transmit
connections, only one device can be connected back to the master.

See Fig. 6.3 on next page

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Содержание 3PCI2

Страница 1: ...ctured in Ottawa Illinois USA of domestic and imported parts by International Headquarters B B Electronics Mfg Co Inc 707 Dayton Road P O Box 1040 Ottawa IL 61350 USA Phone 815 433 5100 General Fax 815 433 5105 Home Page www bb elec com Orders e mail orders bb elec com Fax 815 433 5109 Technical Support e mail support bb elec com Fax 815 433 5104 European Headquarters B B Electronics Ltd Westlink ...

Страница 2: ...o change without notice and does not represent a commitment on the part of B B Electronics B B Electronics shall not be liable for incidental or consequential damages resulting from the furnishing performance or use of this manual All brand names used in this manual are the registered trademarks of their respective owners The use of trademarks or other designations in this publication is for refer...

Страница 3: ...PER MODE TABLES FOR RS 232 422 485 6 INSTALL THE CARD 7 CHAPTER 3 SOFTWARE DRIVER INSTALLATION 9 WINDOWS 95 OR 98 8 SET DTR OPERATION 13 CHANGING COM PORT NUMBER 14 REMOVAL OF DRIVERS CARD 17 WINDOWS 2000 PROFESSIONAL 19 WINDOWS XP PROFESSIONAL 25 SYSTEM PROPERTIES HARDWARE DEVICE MANAGER 30 SET DTR OPERATION 32 CHANGING COM PORT NUMBER 33 REMOVAL OF DRIVERS CARD 35 SHOW HIDDEN FILES AND FOLDERS 3...

Страница 4: ...h 353 91 792444 Fax 353 91 792445 CHAPTER 6 RS 422 RS 485 CONNECTIONS OPERATION 47 RS 422 485 PINOUTS 47 RS 422 RS 485 DIFFERENTIAL SIGNALS 49 RS 422 OPERATION 49 RS 485 OPERATION 50 DTR OPERATION IN RS 485 MODE 50 RS 485 NETWORK BIASING 51 CHAPTER 7 TROUBLESHOOTING 53 APPENDIX A JUMPER MODE TABLES A 1 APPENDIX B CONNECTOR PINOUTS B 1 APPENDIX C TROUBLESHOOTING WITH COMTEST C 1 APPENDIX D DECLARAT...

Страница 5: ...atic protective packaging Discharge any static electricity buildup on your body by touching a large grounded metal surface or the metal chassis on equipment connected to earth ground by a 3 wire power cord Avoid touching the gold connectors or other parts on the card except as necessary to set the configuration jumpers Remove AC power from the computer before inserting the card Retain the ESD bag ...

Страница 6: ... sure that the communications routines support Windows communication drivers and a wide range of COM ports Com1 to Com16 or higher Features Dual Port Multiple Interface PC Serial Card Windows 95 98 2000 XP Compatible Drivers Buffered High Speed 16C950A UARTs 16C550 Compatible 128 byte FIFOs for input output with selectable trigger thresholds Supports baud rates to 460 8K baud RS 232 422 485 mode i...

Страница 7: ...y turning the computer on during installation 4 Install the Card replace the cover 5 Reconnect the Power Cord 6 While power is off connect your cables or wait Step 15 7 Start the computer as Administrator 2000 XP 8 Insert the driver disc in your CD ROM drive 9 Wait until new hardware is detected 10 Proceed with Installation according to your Operating System See Chapter 3 11 Check for new Com port...

Страница 8: ...5 6 7 or 8 bits Parity Even odd or none Stop bits 1 1 5 or 2 RS 232 Data Lines Drivers Receivers Transceiver Device SP211H or equivalent High level output voltage 5 0 V minimum Low level output voltage 5 0 V minimum Output current limited to 25 mA Input high threshold voltage 1 7 V maximum Input low threshold voltage 0 8 V minimum Device will withstand 15 V RS 422 485 Driver Receiver Transceiver D...

Страница 9: ...for custom termination R15 18 Max Power Consumption All ports loaded Voltage V Current mA Power W 5 240 1 2 12 1uA 12 1 uA Total 240 1 2 Typical Baud Rates 75 110 134 150 300 600 1200 1800 2400 4800 7200 9600 14 4K 19 2K 38 4K 57 6K 115 2K 230 4K 460 8K Any baud rate that is a common divisor of 460 8K can be used if the application software supports it Accessories Software Driver CD ROM Disc for W...

Страница 10: ... your body by touching a large grounded metal surface or the metal chassis on equipment connected to earth ground by a 3 wire power cord Avoid touching the gold connectors or other parts on the card except as necessary to set the configuration jumpers Remove AC power from the computer before inserting the card Retain the ESD bag for handling the card Save the packaging for storage or shipping Befo...

Страница 11: ...and software Set the Jumpers Set JP1 and JP2 Jumpers to match your Operating Mode Port 1 bottom connector Port 1 Jumpers RS 232 RS 422 4 Wire RS 485 4 Wire RS 485 2 Wire JP1 Top 232 Right 422 485 left 422 485 left 422 485 left JP1 Middle No effect TX ENABLE right TX SD left TX SD left JP1 Bottom No effect RX ENABLE right RX ENABLE right RX SD left Table 1 Port 1 near bus Jumper Mode Table Port 2 t...

Страница 12: ...85 operation In half duplex RS 485 the receiver is enabled when not transmitting In dull duplex RS 422 485 operation the receiver is always enabled For more operating mode information see the related chapter Install the Card 1 Shut down your computer 2 Unplug the power cord to remove power to prevent accidentally turning on the computer during installation 3 Remove the cover of the computer 4 Loca...

Страница 13: ...the new version See Removal at page 17 Windows 98 screens are shown for this section Windows 95 will have other screen names and text shown Windows Classic settings used as standard 1 Configure each port on card and install it see Chapter 2 2 Make sure PnP OS is set in the BIOS Power up the computer 3 Windows will detect the PCI card start the Add New Hardware Wizard and begin driver installation ...

Страница 14: ...ectronics Mfg Co 707 Dayton Rd PO Box 1040 Ottawa IL 61350 Ph 815 433 5100 Fax 815 433 5104 B B Electronics Ltd Westlink Comm Pk Oranmore Galway Ireland Ph 353 91 792444 Fax 353 91 792445 6 Select Search Click Next 7 Insert Disc Select CD ROM Drive Click Next ...

Страница 15: ...1040 Ottawa IL 61350 Ph 815 433 5100 Fax 815 433 5104 B B Electronics Ltd Westlink Comm Pk Oranmore Galway Ireland Ph 353 91 792444 Fax 353 91 792445 Windows will find B B 3PCI2 Dual Port Serial Card and the driver BBPCI inf file 8 Click Next 9 Click Finish Installation will complete automatically ...

Страница 16: ...ectronics Ltd Westlink Comm Pk Oranmore Galway Ireland Ph 353 91 792444 Fax 353 91 792445 Another similar screen will be shown before the above and after The second time the above is shown installation will have completed Wait for the process to complete To verify the installation open Start Settings Control Panel System Then select the Device Manager Tab ...

Страница 17: ...ard If you want other details Select Properties Click Ports COM LPT to view the COM numbers assigned by Windows to the card You will have two new B B com ports as shown prior page Select Properties or double click on one of the new com ports to set driver options Set DTR Operation Set DTR Operation to Normal for RS 232 Set DTR Operation to RS 485 Mode for 2 wire or 4 wire RS 485 operation Either s...

Страница 18: ...perties Settings Advanced Available names for Com numbers are shown Select a new number from those not in use Com numbers from Com1 to Com256 may be available Com numbers in use may be used by motherboard ports modems virtual com ports for network serial server devices or FAX modem Formerly installed USB to serial adaptors PCI cards or other hardware may have reserved a com number The device may n...

Страница 19: ...ore Galway Ireland Ph 353 91 792444 Fax 353 91 792445 After selecting a new com number Click OK then OK again on the Settings page After returning to the Device Manager screen select Refresh Then double click Ports again You should see the two ports renamed as shown below Example After renaming B B Ports from Com5 and Com6 double click or select each port to finish selecting other properties ...

Страница 20: ... 433 5104 B B Electronics Ltd Westlink Comm Pk Oranmore Galway Ireland Ph 353 91 792444 Fax 353 91 792445 The Default Com parameters are normally overridden by the software application Continue in Chapter 4 Setting Driver Options for Data Rate Clock Speed and FIFO settings Make your connections RS 232 in Chapter 5 or RS 422 485 in Chapter 6 ...

Страница 21: ...tting Control Panel System 2 Select the Device Manager page 3 Select the B B Com port Click the Remove button 4 Select the other B B Com port Click the Remove button 5 Click Multifunction Adaptors then select B B 3PCI2 Dual Port Serial Card which matches the card installed 6 Click the Remove button Next find the C WINDOWS INF directory select View Details Arrange Icons By Name You can use Windows ...

Страница 22: ...tronics Ltd Westlink Comm Pk Oranmore Galway Ireland Ph 353 91 792444 Fax 353 91 792445 8 Remove Bbpci inf in Other subdirectory within INF If the inf folder can t be found select My Computer View Folder Options Files and Folders select Show all files Removing the card first in the device manager clears the registry 8 Shut down the computer 9 Remove the card ...

Страница 23: ...int in the future you want to update these drivers remove these drivers before installing the new version See Removal on page 35 1 Configure each port on the card for the desired RS 232 422 485 mode using the 3 jumpers for each port See Chapter 2 2 Install the card in the slot Start the computer as Administrator or ask your system administrator to install the software 3 Windows will detect the PCI...

Страница 24: ... Co 707 Dayton Rd PO Box 1040 Ottawa IL 61350 Ph 815 433 5100 Fax 815 433 5104 B B Electronics Ltd Westlink Comm Pk Oranmore Galway Ireland Ph 353 91 792444 Fax 353 91 792445 6 Select Search and Click Next to continue 7 Insert the driver disc in the CD ROM drive Click Next ...

Страница 25: ...lectronics Mfg Co 707 Dayton Rd PO Box 1040 Ottawa IL 61350 Ph 815 433 5100 Fax 815 433 5104 B B Electronics Ltd Westlink Comm Pk Oranmore Galway Ireland Ph 353 91 792444 Fax 353 91 792445 8 Click Next 9 Click Finish to complete the first part of installation ...

Страница 26: ... Co 707 Dayton Rd PO Box 1040 Ottawa IL 61350 Ph 815 433 5100 Fax 815 433 5104 B B Electronics Ltd Westlink Comm Pk Oranmore Galway Ireland Ph 353 91 792444 Fax 353 91 792445 10 Next Windows finds a new type of serial port Click Next 1 1 Click Next to search a second time ...

Страница 27: ...nics Mfg Co 707 Dayton Rd PO Box 1040 Ottawa IL 61350 Ph 815 433 5100 Fax 815 433 5104 B B Electronics Ltd Westlink Comm Pk Oranmore Galway Ireland Ph 353 91 792444 Fax 353 91 792445 12 Select CD ROM drives Click Next 13 Click Next when the bbpci2 inf file is found ...

Страница 28: ...3 91 792444 Fax 353 91 792445 14 Click Finish Wait for the process to complete Check and verify that a new B B Com port is now available 13 Open Start Settings Control Panel System Then select the Hardware tab on System Properties 14 Skip over the first part of software driver installation for XP which follows The second part applies to both 2000 and XP Continue on page 30 System Properties Hardwa...

Страница 29: ...ese drivers before installing the new version See Removal on page 35 1 Configure each port on the card for the desired RS 232 422 485 mode using the 3 jumpers for each port See Chapter 2 2 Install the card in the slot Start the computer as Administrator or ask your system administrator to install the software 3 Windows will detect the PCI card and start Found New Hardware Wizard to begin driver in...

Страница 30: ...lway Ireland Ph 353 91 792444 Fax 353 91 792445 6 Windows will find the drivers on the CD then provide a notice concerning Windows Logo testing for XP This new feature of XP simply indicates that these drivers have not yet undergone the Microsoft testing procedures required to use the Windows XP Logo on the packaging Driver compatibility is not affected 7 Click Continue Anyway Continued next page ...

Страница 31: ...al B B Electronics Mfg Co 707 Dayton Rd PO Box 1040 Ottawa IL 61350 Ph 815 433 5100 Fax 815 433 5104 B B Electronics Ltd Westlink Comm Pk Oranmore Galway Ireland Ph 353 91 792444 Fax 353 91 792445 8 Click Finish to continue installation 9 Select Next ...

Страница 32: ...onics Mfg Co 707 Dayton Rd PO Box 1040 Ottawa IL 61350 Ph 815 433 5100 Fax 815 433 5104 B B Electronics Ltd Westlink Comm Pk Oranmore Galway Ireland Ph 353 91 792444 Fax 353 91 792445 10 Windows provides the Logo notice for Com Port Driver 11 Click Continue Anyway ...

Страница 33: ...port on the card this part of software driver installation is complete Check and verify that a new B B Com port is now available within the Control Panel System Device Manager If you are more familiar with Windows 95 98 2000 you may want to select the Windows Classic look for the Start Menu Position the mouse pointer over the Taskbar then Right Click Select Properties Select the Start Menu tab the...

Страница 34: ...Mfg Co 707 Dayton Rd PO Box 1040 Ottawa IL 61350 Ph 815 433 5100 Fax 815 433 5104 B B Electronics Ltd Westlink Comm Pk Oranmore Galway Ireland Ph 353 91 792444 Fax 353 91 792445 System Properties Hardware Device Manager Select Device Manager then view the hardware list ...

Страница 35: ...d Ph 353 91 792444 Fax 353 91 792445 Under Multifunction Adapters the B B 3PCI2 Dual Port Serial Card is installed Under Ports B B Com Port COM6 and COM7 was assigned If Com ports between COM1 and COM6 are not in use by other hardware or software we can change the B B Com port to another available Com number using Properties Settings Advanced Double click on COM6 to access the Properties Next sele...

Страница 36: ...53 91 792445 Set DTR Operation Set DTR Operation to Normal for RS 232 Set DTR Operation to RS 485 Mode for 2 wire or 4 wire RS 485 operation Either setting can be used for RS 422 The card jumpers must be set for the same mode See Chapter 2 The Default Com parameters are normally overridden by the software application You can now remove the driver disc close the Windows and check the new ports with...

Страница 37: ...vice Manager Select Properties Settings Advanced Available names for Com numbers are shown Select a new number from those not in use Com numbers from Com1 to Com256 may be available Com numbers in use may be used by motherboard ports Modems virtual com ports for network serial server devices or FAX modem Formerly installed USB to serial adaptors PCI cards or other hardware may have reserved a com ...

Страница 38: ...clean up the problem Special permissions are required with 2000 or XP After selecting a new com number Click OK then OK again on the Settings page After returning to the Device Manager screen it should refresh automatically Then double click Ports again You should see a B B port renamed as shown below Example After renaming B B Port to Com2 Com4 Double click or select the port to finish selecting ...

Страница 39: ...y which cannot be easily edited under 2000 or XP 3 Remove the two sets of driver files from the Windows INF directory See the screen on the next page These are named by the OS in the sequence of installation On a clean system they are Oem0 inf Oem0 PNF and Oem1 inf Oem1 PNF The inf versions should be verified by opening it with Notepad then checking that it is a B B Electronics file for the card T...

Страница 40: ...yton Rd PO Box 1040 Ottawa IL 61350 Ph 815 433 5100 Fax 815 433 5104 B B Electronics Ltd Westlink Comm Pk Oranmore Galway Ireland Ph 353 91 792444 Fax 353 91 792445 Windows Explorer WINNT INF Oem2 and Oem3 files Finding the OEMx inf and OEMx PNF files for removal Continued next page ...

Страница 41: ...ual B B Electronics Mfg Co 707 Dayton Rd PO Box 1040 Ottawa IL 61350 Ph 815 433 5100 Fax 815 433 5104 B B Electronics Ltd Westlink Comm Pk Oranmore Galway Ireland Ph 353 91 792444 Fax 353 91 792445 Show Hidden Files and Folders End of Removal section ...

Страница 42: ... 433 5104 B B Electronics Ltd Westlink Comm Pk Oranmore Galway Ireland Ph 353 91 792444 Fax 353 91 792445 Chapter 4 Setting Driver Options DTR Operation Example DTR Operation Screen Windows 98 Select Normal for RS 232 operation Select RS 485 Mode for Automatic RS 485 Driver Control Use either setting for RS 422 operation Continued next page ...

Страница 43: ...e Manager Select Properties Settings Advanced Example Advanced Settings Windows 98 Available names for Com numbers are shown Select a new number from those not in use Com numbers from Com1 to Com256 may be available Com numbers in use may be used by motherboard ports Modems virtual com ports for network serial server devices or FAX modem Formerly installed USB to serial adaptors PCI cards or other...

Страница 44: ...equires it In the 4X position all specified baud rate settings are multiplied 4 times For example if the software specifies 57 6K baud the actual baud rate will be 230 4K baud 115 2K becomes 460 8K baud Each port can be set separately Example Data Rate Clock Speed 4x Windows 98 Refer to Specifications in Chapter 1 for baud rates available In many systems faster baud rates can improve throughput si...

Страница 45: ...IFO settings should minimize overhead and work well for most users The FIFO Interrupt Trigger levels setting determines how often the host processor services the serial port to send or receive data The Transmitter Trigger level sets how low the output buffer gets before it triggers a request for more data from program memory The Receiver Trigger level sets how much data is in the input buffer befo...

Страница 46: ...cs Ltd Westlink Comm Pk Oranmore Galway Ireland Ph 353 91 792444 Fax 353 91 792445 The optimum setting for each depends on the nature of your data how it fits within the buffer how fast your computer operates etc Receiver FIFO applies when Handshaking is used for Hardware or Software control For Connections refer to Chapter 5 RS 232 or Chapter 6 RS 422 or RS 485 ...

Страница 47: ...ith Ground they make a 3 wire interface The RTS and CTS signals are Handshaking lines used to indicate to the other device that data can be sent or received These lines may be enabled or disabled on a byte by byte basis and are used to prevent buffer overrun or the loss of data Auto hardware support Two secondary Handshaking signals are DTR and DSR They are usually enabled when the device is power...

Страница 48: ...able is needed to interconnect two computers with RS 232 RS 232 devices which require hardware handshaking require connection of RTS CTS and or DTR DSR lines in order to operate properly Programs for RS 232 may chose to use only Receive and Transmit and ignore hardware handshaking None inputs or may require connections to verify that a cable and device is ready for access Some devices may use Soft...

Страница 49: ...o Data B of your devices and from pin 3 to Data A of your devices Make sure your Mode Jumpers are set and that the driver Setting for DTR Operation is RS 485 Mode in the Device Manager Note that the EIA RS 422 Specification labels data lines with an A and B designator Some RS 422 or RS 485 equipment uses a and designator In most cases the A line is the equivalent of the line and the B line is the ...

Страница 50: ...omputer to RD A on the device Connect the RD B pin 9 on the computer to TD B on the device Connect the RD A pin 1 on the computer to TD A on the device Connect the Signal Ground pin 5 to Signal Ground on the device In a 4 wire RS 485 system each receive line connects to the same receive terminal on all slaves and each transmit line connects to the same transmit terminal on all slaves The master to...

Страница 51: ...ed at 200mV A separate signal ground common connection provides a common mode reference for the transmitter and receiver These factors provide reliable communications at much greater distances than RS 232 RS 422 Operation In RS 422 mode the transmitter is enabled TX ENABLE all the time and the receiver is enabled RX ENABLE all the time Typical connections are for two devices one device at each end...

Страница 52: ... the RS 485 mode was established where each transmitter tri states to a high impedance when not transmitting See following RS 485 Operation In RS 485 mode the transmit driver must be enabled during transmit TX SD and tri stated to a high impedance when the data has been sent In the 2 wire half duplex mode the receiver is enabled when not transmitting and disabled RX SD during transmit echo off The...

Страница 53: ... receiver threshold of 200mV for all devices on that section of the network If the biasing is not maintained the first data bit of a signal may not be detected and one or more devices may not respond to commands or may operate intermittently The RS 485 receivers on the 3PCI2 are biased with a 4 7 KΩ pull up resistor on the Receive Data B line and a 4 7 KΩ pull down resistor on the Receive Data A l...

Страница 54: ...stalling the card the card may not be properly seated in the slot Remove and re insert it or try a different slot Check that BIOS is set for PnP OS If you are unable to communicate with the card using your software and hardware devices 1 Check your pinouts In RS 422 or RS 485 mode the A lines should match your A or lines B lines should match your B or lines Note RS 422 485 pinouts are non standard...

Страница 55: ...ure you have DTR Operation set to the correct mode Normal for RS 232 RS 485 Mode for RS 485 RS 422 mode works in either setting provided that the mode jumpers are set correctly 6 A loopback connection for RS 232 connects the Transmit output to the Receive input pins 2 3 on the DB9 connector Use connections below to check all Fig 7 1 RS 232 Loopback w Handshaking Connections 7 For RS 422 or 4 wire ...

Страница 56: ...TS DSR DCD RI are not pulled high 9 Some manufacturers label their data connections for A and B reverse of the standard for RS 422 or RS 485 so that the A line is and B line is inverted following the IC standard In such a case just swap the wires and try it No damage occurs in the RS 485 mode just no devices will respond The EIA standard for signal labels defines the B line as positive relative to...

Страница 57: ...ht TX SD left TX SD left JP1 Bottom No effect RX ENABLE right RX ENABLE right RX SD left Table A 1 Port 1 nearest bus Jumper Mode Port 2 top connector Port 2 Jumpers RS 232 RS 422 4 Wire RS 485 4 Wire RS 485 2 Wire JP2 Top 232 422 485 left 422 485 left 422 485 left JP2 Middle No effect TX ENABLE right TX SD left TX SD left JP2 Bottom No effect RX ENABLE right RX ENABLE right RX SD left Table A 2 P...

Страница 58: ...le B 1 RS 232 Pinouts Table B 2 RS 232 DB9 to DB25 Conversion Cable Name DB9 Pin DTE DB25 Pin DTE DCD 1 8 RD 2 3 TD 3 2 DTR 4 20 GND 5 7 DSR 6 6 RTS 7 4 CTS 8 5 RI 9 22 Chassis GND Shield DB9 Shell 1 Name Description Direction DTE DB9M Pin DCD Data Carrier Detect Input 1 RD Receive Data Input 2 TD Transmit Data Output 3 DTR Data Terminal Ready Output 4 GND Signal Ground 5 DSR Data Set Ready Input ...

Страница 59: ... 485 network See Chapter 6 for example connections Note that the EIA RS 422 Specification labels data lines with an A and B designator Some RS 422 equipment uses a and designator In almost all cases the A line is the equivalent of the line and the B line is the equivalent of the line More information on RS 422 communications can be found in the B B Electronics RS 422 485 Application Note available...

Страница 60: ...m Test A Windows Terminal Program for Simple Checks of Serial Ports Works with USB Serial Converters ISA or PCI Serial Cards Serial Port Access under Windows 95 98 2000 XP Com1 Com8 or above Dual Windows show typed transmit characters in separate window from received characters Transmit Receive Activity Indicators Unprintable Characters Shown in Hex 2 Digits Within Left Right Angle Brackets Visual...

Страница 61: ...t the Com port to access or test The drop down box shows available ports not in use 5 Click Ok Configure Port is shown 6 Select the needed baud rate parity data bits stop bits Defaults are common settings 7 Type characters they will appear in the upper window 8 If performing a loopback test observe the received characters in the lower window 9 Use the Option to set DTR high or low observe the DSR ...

Страница 62: ...pendix D Declaration of Conformity Statement DECLARATION OF CONFORMITY Manufacturer s Name B B Electronics Manufacturing Company Manufacturer s Address P O Box 1040 707 Dayton Road Ottawa IL 61350 USA Model Numbers 3PCI2 Description 2 port RS232 422 485 PCI Serial Card Type Light industrial ITE equipment Application of Council Directive 89 336 EEC Standards EN 55022 EN 50082 1 EN 61000 4 2 4 3 4 4...

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