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PCI Quad 422/485 Card

1. Maximum Baud Rate 115200 230400 460800 921600 50 100 200 400 75 150 300 600 110 220 440 880 150 300 600 1200 300 600 1200 2400 600 1200 2400 4800 1200 2400 4800 9600 1800 3600 7200 1440 2000 4000 8000 16000 2400 4800 9600 19200 3600 7200 14400 28800 4800 9600 19200 38400 7200 14400 28800 57600 9600 19200 38400 76800 19200 38400 76800 153600 38400 76800 153600 230400 57600 115200 230400 460800 115200 230400 460800 921600 Note Many serial comms applications will not actually register the ports as running at baud rates of above 115200 Restore Defaults when clicked resets the selected COM port to the following values Baud Rate 9600 Data Bits 8 Parity None Stop Bits 1 Flow Control Xon Xoff Maximum Baud Rate Setting 115 200 Clicking on the Serial Solutions tab will display Velocity RS485 Port COM5 Properties 21 x General Port Settings Serial Solutions Driver Resources iG Serial Solutions Serial Port Settings Shared Intenupt Settings m FIFO Settings E I Extend FIFO Receive Buffer Low o c High Transmit Buffer C4 cs Gie gt automatic eraware How sornitol m 485 Mode Half Duplex C Full Duplex CTS Hold TRUE Restore Settings available in this window are PCI Quad 422 485 Card Chapter 7 Windows 98 Millenium Installation e 37 FIFO Settings Enable FIFO turns the selected ports FIFO buffer on or off It is stron
2. PCI Velocity Quad RS422 485 Autogating Card CC 3 K ES EA a Sa A a jos alo al ale 7 0 In this window the COM port assignment may be changed simply by selecting a new COM port value from the pull down menu relevant to the port However COM port usage other than those for the PCI Quad Velocity RS422 485 card itself are not checked so it is advisable to first check which COM ports are in use pert ia can be checked by viewing the Device Manager AAA eee A A Y eee pee wey al a Ports COM amp LPT i A d Communications Port COM1 All COM ports present will be listed under the entry Ports COM amp LPT The above screenshots indicates that COM2 4 and COM6 and above are not installed and therefore may be used PCI Quad 422 485 Card Chapter 7 Windows 98 Millenium Installation e 34 The Maximum Baud Rate Setting for all ports on the card may also be set from this window This settting will make the maximum baud rates of all the ports on this card equal to whatever is set Individual ports may have their settings changed as shown in Port Settings Click Here for Port Settings Port Settings Properties Using the right hand mouse button click on the My Computer icon on your desktop Click on Properties System Properties Device Manager Hardware Proies Performance Click on the Device Manager tab Double clicking on a Velocity RS485 Port entry from the en
3. In the box under Copy manufacturers files from type lt CDROM Drive gt diskimg sswin2k where lt CDROM Drive gt is the letter of the drive into which you inserted the driver CD ROM Eg D diskimg sswin2k Driver Files Search Results The wizard has finished searching for driver files for your hardware device Click Next PCI Quad 422 485 Card Chapter 9 Windows 2000 Installation 45 Digital Signature Not Found Click Yes Found New Hardware Wizard Completing the Found New Hardware Wizard Brain Boxes Limited Velocity Quad AS422 485 Autogating Card CC 346 Windows has finished installing the software for this device To close this wizard click Finish Click Finish Found New Hardware J Brain Boxes Serial Port Installing The system will then detect the ports briefly showing the above screen shot PCI Quad 422 485 Card Chapter 9 Windows 2000 Installation 46 Checking your Installation Using the secondary Right mouse button click on the My Computer icon on your desktop Properties Click Properties System Properties Select the Hardware tab Click Device Manager Device Manager 6 Disk drives E Display adapters DVD CD ROM drives 6 Floppy disk controllers Floppy disk drives 5 IDE ATAJATAPI controllers keyboards a Mice and other pointing devices 1 5 Monitors B A Multi port serial adapters J Brain Boxes Lim
4. 0xd2 for 1 Note down IRQ and I O which in this case The IRQ 11 The I O address 0140 NEWCOM SYS Parameters The NewCOM SYS device driver included with the PCI RS422 485 driver software is used to set up the card in DOS and has the following syntax NEWCOM SYS A port address I IRQ range IB number buffer IS buffer IH hardware handshake Where A port address specifies COM port number followed by a hexadecimal address in the form Ax y where x is COM port range and y is I O address PCI Quad 422 485 Card Chapter 4 DOS Software Configration e 13 LIRQ range specifies card interrupt and COM port range The COM port range specifies the COM port s Range may be a single port OR a range of ports B number buffer is used to set the number of pairs of buffers to be allocated to ports and is a decimal number in the range 1 maxport S buffer Set size of all buffers in bytes buffer is rounded to the nearest power of 2 and must be a decimal number in the range 32 to 32768 For any serial port opened two buffers of size buffer are allocated one for input and the other for output H hardware handshake selects which hardware handshake type to use on the specified ports This is used in the following manner H range hs where range specifies the COM port or ports and hs selects handshake type Handshake types available are Type 1 RS422 RTS CTS The PC only transmits when CTS is input true When the PC is able to rec
5. control port 1 RS485 multiplexing TX RX2 and TX RX2 control port 2 RS485 multiplexing TX RX3 and TX RX3 control port 3 RS485 multiplexing TX RX4 and TX RX4 control port 4 RS485 multiplexing Full Duplex Settings port 1 Txoi Jaxo1 TXO14 IRXDI Both jumpers left unconnected not shorted Half Duplex Settings port 1 Tons ef Both jumpers shorted causing the RXD amp TXD and the RXD amp TXD signals to short together at the 9 pin connector The multiplex jumpers should only be set for RS485 Half Duplex operation when one twisted pair is used to interconnect both transmit and receive lines These settings are the same for each port NOTE Any changes to RS485 Multiplex Operation must be accompanied with appropriate changes to the driver software For further details on the RS422 and RS485 standard pinouts half duplex and full duplex RS485 systems wiring diagrams and optional grounding diagrams refer to Chapter 10 Optional RS422 485 Operation PCI Quad 422 485 Card Chapter 2 Hardware Configration e 9 Chapter 3 Installing the Card NOTE Always turn the computer OFF before installing or removing any interface board STEP 1 Remove Cover Mounting Screws Cover i Mrs Then using a screwdriver remove the cover mounting screws on the back panel of the PC system unit STEP 2 Remove The PC Cover Next remove the PC s cover by sliding it forward and up It usu
6. 39 Software Installation harian tati tad EO aN E NEERA EEEE eteestegotehentes 39 Examining Card Configuration cscccescccsseccsseeeeseecsseecsceceseeeesaeecsaeecseesssaesneeeesaes 40 Card Setup cansas odds dois doit 40 A E 41 Advanced Port Sett gS cocoa dad i ci E a a E milit 42 Uninstalling Serial Solutions POL eiti ereserki eiras eike a ano n aR cpio a s 43 Chapter 9 Windows 2000 Installation 44 Software Install E 44 Checking your Installation ss isinin et T T a aee 47 Chapter 10 Optional RS422 485 Operation 48 THE RS422 andadas 48 The RS485 Standardin iesper did 48 Termina n Impedance s sy ys penh e eeoa eane vate scetetepeces seseetebededeterectyotebededetersntes 48 Fail Safe Open Circuit Detection cee eeeeeesecesneessneecssceceseecesaeeesaeecsaeecsaeesseeessaeessaes 49 Fail Safe Short Circuit Protection esccessscesseeceseecsscecsseeesseecesaeecsaeecseesseeeesaeeesaes 49 RS422 Operation snena heehee hey ele eee 49 RS422 Serial Port Cables c20 ccieccesetceesecesssctesetesseesonosenscenesvnedebesesnsenedonessbecenssenesae 49 Serial Port 1 To Other PC Cable eesessseecsseeceseeeesseecsseecscecsseeeesaeecsaeesseessneeeesaes 50 RS485 Operation sista Hehe eee ay isa eat nites 50 RASS Cable aa a reves nidad dadas 50 RS485 One Talker Many Listeners Half Duplex oooonncccnonccconcccnoccconnncnonccnonacionacinnass 51 Half Duplex Settings of RS485 Multiplex ooonocccnonoccocccoonncnoncnconaconnc
7. at any time and all the RS485 devices 1 to n simultaneously receives it Only one of the RS485 devices may talk i e transmit data at any one time Each RS485 device recognizes commands and data addressed to it it only talks when the PC commands it to do so When the RS485 device receives the command to talk from the PC it gates its TXD drivers on sends the data down the device TXD channel and disables its TXD drivers The other RS485 devices remain in the receive only mode when they are not being addressed they do not transmit any data at all RS485 Jumpers Full Duplex TX RX1 TX RX1 m m Both jumpers left unconnected not shorted PCI Quad 422 485 Card Chapter 10 Optional RS422 485 Operation e 52 RS485 Full Duplex PC s TXD CHANNEL PC Pin2 Device n TXD RXD 1200 TXD RXD n Pc Pinl RXD1 RXD2 RXDn 1 RXDn 2 Device l Dovicc 2 Device Device o 1 0 2 r PC Pin7 Devices TXD CHANNEL Devicetn RXD TXD a 1202 RXD TXD n PC Pin6 TXD1 TXD2 TXDn 1 TXDa 2 Device l Device 2 Device Device n 1 n 2 Note The receiver end of MAIN line terminated in characteristic impedance stubs off the main not terminated Optional Grounding Arrangements Proper operation of the cable circuit according to TIA EIA 485 A 1995 requires that the cable ground shield is not connected directly to the equipment ground shield A current limiting resistor shou
8. is no need to add any more at the PC end The terminating impedance s shown later in the wiring diagrams are automatically provided by the on board resistors and do not have to be added by the user Fail Safe Open Circuit Detection Open circuit is when there are no drivers on the circuit This occurs by design in party line multi driver receiver systems and unintentionally when the twisted pair line is accidentally cut or disconnected or the transmitting device fails In RS485 party line systems there are extended periods of time when none of the many possible talkers are gated onto the bus This is known as the line idle state and occurs when all the driver outputs are in the high impedance state The lines float perhaps being pulled to the high or low state by noise or other voltages on the line Without fail safe open circuit detection false start bits are detected by the receivers either corrupting good communications or causing noise to masquerade as good data The on board fail safe open circuit detection causes the receiver to go to a known pre determined state and prevents false start bits and bad data being detected during open circuits Fail Safe Short Circuit Protection Short circuits are when the two lines of a twisted pair are connected together This occurs due to either accidental damage to the cable or due to failure of one or more transmitter receivers on the line The short circuit condition is dangerous since
9. serial card s and does not require any further system restarting PCI Quad 422 485 Card Chapter 8 Windows NT 4 0 Installation 39 Examining Card Configuration Go to Control Panel Start Settings Control Panel Z 0 2 o No P4 Control Panel PC Card Ports Printers PCMCIA oH Z QuickTime 32 Regional Serial Solutions Settings ko double click on Serial Solutions PCI Card Setup You will be presented with a Serial Solutions PCI Port Configuration window kg Serial Solutions for Windows NT Communications Port ty Quad R ating Card elocity Quad A utogating Card Velocity Quad AS422 485 Autogating Card Velocity Quad AS422 485 Autogating Card OLPT1 Parallel Port To view the settings of a port select it and click on settings PCI Quad 422 485 Card Chapter 8 Windows NT 4 0 Installation e 40 Configuring Ports Select the resources tab Settings for communications port COM2 Settings available in this window are Settings available in this window are Baud Rate determines the baud rate at which the selected port operates the maximum value available is 921 600 1 Megabaud Note Many serial comms applications will not actually register the ports as running at baud rates of above 115200 Data Bits Parity Stop Bits Flow Control Dependent upon device being used Advanced see the section below titled Advanced Port Se
10. 04 0x0150 11 Com005 0x0158 11 Note A port that has been added has the default values of Baud Rate 9600 Data Bits 8 Parity None top Bits 1 0 Flow None Change the communications Settings in the COM Ports to match the baud rate parity settings etc of the remote serial device PCI Quad 422 485 Card Chapter 5 Windows 3 x Software Configuration e 19 Deleting Ports in Windows The Delete button can be used to discard the entries of ports that have been removed from the system Note Never try to leave out a serial port number when using the delete button because Windows may automatically shift serial port numbers which results in a mis match of settings in the Serial Ports Applet COM1 COM4 only PCI Quad 422 485 Card Chapter 5 Windows 3 x Software Configuration e 20 Chapter 6 Windows 95 Software Configuration Introduction To obtain a trouble free mix and match of the COM ports Switch off your computer insert your PCI RS422 485 card into a free PCI slot as described in Chapter 3 and switch your computer on again During the booting process Windows 95 will detect the PCI Velocity RS422 485 but will display it simply as a PCI CARD and you will briefly see a message box to this effect Update Device Driver Wizard This wizard will complete the installation of PCI Card by searching your local drives network and Intemet locations for the most current driver If you have a disk or CD
11. 2 and Microchannel Architecture are trademarks of IBM Windows is a trademark of Microsoft PCI Quad 422 485 Card Introduction e 1 Chapter 1 Serial Solutions This chapter is a brief description of the Serial Solutions software package this can also be purchased SEPARATELY and is available from YOUR DEALER The perfect partner for any Serial Port is Serial Solutions Software Serial Solutions is a fully featured suite of programs designed to squeeze the most from PC serial communications Serial Solutions is made up of the following components Serial Solutions for DOS Serial Solutions for Windows 3 x Serial Solutions for Windows 9x Serial Solutions for Windows NT Serial Solutions for Windows 2000 All the Serial Solutions drivers have the following features Drivers for PC FIFO UARTs e g 16550 as well as the new improved 32 byte 16650 and 64 byte 16750 UARTs Support for any mix of RS232 RS422 and RS485 handshake schemes Support for wider range of Baud rates and for more than 4 serial ports Serial Solutions For DOS Serial Solutions for DOS consists of the following programs NewCOM sys A device driver it supports COM1 to COM16 allowing 16 serial ports to be used under DOS It also includes an interrupt handler for enhanced performance with user definable buffer sizes Accessible from all DOS languages it is the heart of the Serial Solution It has extensive handshaking support implementing bo
12. 22 485 Cardshould be ready to use immediately PCI Quad 422 485 Card Chapter 4 DOS Software Configration e 15 Chapter 5 Windows 3 x Software Configuration Introduction The Windows 3 x installation procedure consists of two steps after the PCI RS422 485 card is inserted 1 Determining the resources that the PCI RS422 485 card has claimed 2 Informing Windows 3 x of those resources Whenever certain values have been entered or changed in the hardware settings window a message prompting to restart Windows will appear Only after having made ALL the necessary changes restart Windows so that the new settings come into effect Determining PCI Resources Insert the card into a PC as described in Chapter 3 Run BBCARDS EXE from the supplied Serial Solutions CDROM by typing the following D diskimg ssutil pci BBCARDS Where D is the Letter of your CDROM drive BBCARDS EXE will return a string that looks similar to the following values contained in the string may differ in individual PC s due to resource availability card 1 is on bus 0 device 16 function 0 Card ID 5 revision 1 4 Port Velocity RS422 485 interrupt line 11 has been assigned 4 sets of 16550 compatible registers are at I O address 0140 Baud clock control is at I O address 02d0 Write Oxf6 for 8 default Oxf2 for 4 0xd6 for 2 Oxd2 for 1 Note down IRQ and I O which in this case The IRQ 11 The I O address 0140 Wi
13. 8 59 61 installation 4 15 Installing Ports In Microsoft Windows 95 amp 98 23 Installing ports in Windows 3 x 19 interrupts 3 J jumper 9 58 59 L last 59 loop back 3 Maximum Baud Rate 31 32 41 42 43 Megabaud See 921600 baud See 921600 baud mode 3 60 O open circuit 56 P parity 3 party line 56 59 port ports 2 3 4 6 15 45 56 Port Address 17 protocol 2 58 R receive 10 58 59 60 resistor 55 56 57 58 RS232 2 6 9 RS422 RS485 6 9 10 33 44 49 55 56 57 58 59 60 61 RS422 Pinout 8 RS485 Multiplex Jumper Settings 9 33 44 49 RTS 2 6 56 57 58 59 RXD 6 10 56 57 58 59 PCI Quad 422 485 Card Index e 54 S serial port 2 3 15 45 56 shared interrupt 3 4 short circuit 57 SISR 16 speed 6 55 T twisted pair 10 56 57 58 59 TXD 6 10 57 58 59 60 U Uninstalling Serial Solutions PCI for Windows NT 49 WwW Windows 2 3 4 45 PCI Quad 422 485 Card Index e 55
14. D connector in general not all the lines are used for RS485 systems The RTS and CTS lines though driven by the card are usually not connected In two wire Half Duplex configurations the TXD line is connected to the RXD whilst the TXD line is connected to the RXD only one pair of twisted wire cable is used in RS485 Half Duplex communications The hardware handshaking performed by the CTS and RTS lines in RS422 systems are handled by a software protocol in RS485 systems In situations where more than one device may transmit data on the shared data line each cards RTS line is used as a gating signal to enable the TXD driver only when that card needs to transmit data i e set TXD GATE or AUTO jumper This mechanism prevents bus contention caused by multiple transmitters holding the line in opposing states Revision 3 and higher versions of this card have a facility which automatically gates the RTS line thus enabling the transmitter independently of any software This Auto gating is described in more detail in the previous 485 half duplex section The three wiring schemes given described below are RS485 One Talker Many Listeners HALF DUPLEX RS485 Many Talkers Many Listeners HALF DUPLEX RS485 Many Talkers Many Listeners FULL DUPLEX RS485 Cable For best noise immunity use twisted pair cables to make the RS485 connection In Half Duplex wiring only 1 twisted cable pair is needed Two twisted pair cable
15. INTS PIN14 PINTS PINT2 PINT 1 PINTO PING PIN8 PIN7 PING PINS PIN4 PINS PIN2 PINT GROUND CTS4 CTS4 RXD4 RXD4 GND3 RTS3 RTS3 TXD3 TXD3 CTS2 CTS2 RXD2 RXD2 END RTS1 RTS TXD1 TXD1 J eeeosesedsvsedsvsedvesedsesesoe sesesedsewssd 0 0 0 00 0 00 0000000000 a e e E O O E E O E O E E E A E L PINS7 PINS PINSS PIN34 PIN33 PIN31 PIN25 PIN24 PIN21 IXD4 TXD4 PIN32 CT 3 PINGO PIN29 PIN28 PIN27 PIN26 TXD2 TXD2 PIN23 PIN22 RXD1 PIN20 TRANSMITTED DATA TXD TRANSMITTED DATA TXD REQUEST TO SEND RTS REQUEST TO SEND RTS GROUND GND GND4 RTS4 RTS4 CTS3 RXD3 RXD3 GND2 RTS2 RTS2 CTS1 CTS1 RXD1 Configuring the Card PCI cards require no hardware configuration for IRQ and address allocation this is done automatically at start up by the PC However the PCI quad RS422 485 has four sets of jumpers for configuration of RS485 multiplex modes for each port how to configure these jumpers is shown below PCI Quad 422 485 Card Chapter 2 Hardware Configration 8 RS485 Multiplex Jumper Settings The RS485 Multiplex jumper block is shown below with default settings of no jumpers present both ports full duplex 885 MULTIPLEX AXDI AXDIF AXD2 RXD2 RXD3 RXDS PXDA o DNA A RAD4 Where TX RX1 and TX RX1
16. Mode offers the options Half Duplex Full Duplex default are used in conjunction with the RS485 Multiplex Jumper Settings NOTE These software settings must match the RS485 Multiplex Jumper configuration as described in the section RS485 Multiplex Jumper Settings in Chapter 2 to ensure accurate and error free data transmission CTS Hold True determines whether the CTS handshake signal is INPUT from the external serial device or is permanently forced true on the card The serial ports own RTS OUTPUT handshake signals are always taken out to the serial port connector Restore when this button is clicked the settings in the current window will be reset to the default values of Enable FIFO On Checked Extend FIFO Off Unchecked Receive Buffer 3 from left Transmit Buffer 16 485 Mode Full duplex PCI Quad 422 485 Card Chapter 6 Windows 95 Software Configuration e 29 Chapter 7 Windows 98 Millenium Installation To obtain a trouble free mix and match of the COM ports Switch off your computer insert your PCI RS422 485 card into a free PCI slot as described in and switch your computer on again During the booting process Windows 98 will detect the PCI Velocity RS422 485 but will display it simply as a PCI CARD and you will briefly see a message box to this effect Add New Hardware Wizard This wizard searches for new drivers for PCI Card A device driver is a software program that m
17. PCI Quad 422 485 Card By Paul D Sinclair Contents Introduction 1 E A OT 1 O O 1 INIA AA O 1 ACKNOWLEDGEMENTS vainen nnen a eA AA E E EN ERE 1 Chapter 1 Serial Solutions 2 serial Soluti ns Eo DOS dae 2 Serial Solutions For Windows B X cccsssscceesenceeeeeseeeeeseaeeeceeneeeceseaeeeeeenaeeeseenneeesseseeees 3 Serial Solutions For Windows 9X cccssccccessnceeeeeneeeeeseaeeecesnneeeeseaeeeeeenneeesesneeesseaeeeess 4 Serial Solutions For Windows ADe serie aana oasian raie TEE ES EA E ETEA ETES AREE i 4 Serial Solutions for Windows 2000 cccssssceceeeseeeeeeeeeceeneeeecesaeeeeeesneeesesneeeesseneeeens 4 Complete Documentation and Technical Backup ooocnonccnonccnnncccnnancnonccnonaccnnanonnnccnnnc no 5 Chapter 2 Hardware Configration 6 Introduccion anita le o diodes 1 Mead 6 Card A E ON 6 ALOR AtIN A E O T Card Layout and Specifications ssnin innn ea aa Eaa EAS RS 7 A NN 8 Configuring the Cards 2 isccisisisscendaicesgaislenishine E docencia anios 8 RS485 Multiplex Jumper Settings ce eee esecesseecsseeessceceseeeesaeecseecseecsseeseseeeeseeesaeees 9 Chapter 3 Installing the Card 10 STEP 1 Remove Cover Mounting Screws 0 ssccesscccssceeesseeeseeceeecsseecesaeeesaeessneesneers 10 STEP 2 Remove The PE Cover anni a E A vapoaes EEE SERR 10 STEP3 Remove the Blanking Coverosicoissorontoiodostincni pants sonas tops ee Es aT Enara SEINES 11 STEP4 Insert D oTe Cad 11 STEP 5 Secure t
18. ROM that came with this device insert it now It is recommended that you let Windows search for an updated driver To do this click Next to continue Windows will then display the Update Device Driver Wizard which asks you to insert any disk which came with the PCI card Insert the Serial Solutions CD ROM into an appropriate drive and click Next The Wizard should then display the following Update Device Driver Wizard Windows was unable to locate a driver for this device If you do not want to install a driver now click Finish To search for a driver manually click Other Locations Or to begin the automatic search again click Back Other Locations Click Other Locations PCI Quad 422 485 Card Chapter 6 Windows 95 Software Configuration e 21 In the location space type lt drive gt diskimg sswin9x where drive is the appropriate letter for your CDROM drive Select Other Location lt drive gt Adiskimgrsswin9x o too Click OK Update Device Driver Wizard The screen shot above shows that the Update Device Driver Wizard has found a suitable driver and the location of that driver Click Finish Insert Disk X Click OK PCI Quad 422 485 Card Chapter 6 Windows 95 Software Configuration e 22 Copying Files La E lt drive gt diskimg sswinx v In the copy files from space type lt drive gt diskimg sswin9x where dri
19. S485 devices have separate Transmit and Receive channels There is NO multiplexing of the TXD and RXD signals on the same device This system is especially useful when there is no flow control available on the PC usually due to the use of a third party communications program that prevents the use of the RTS signal as a transmit enable control via the TXD GATE jumper It can be used in the following situations a The PC is connected to only ONE RS485 device b The PC is communicating with several RS485 devices that are each able to recognize and respond to their own unique address The RS485 devices only drive their TXD lines when they are responding to requests from the PC to send data In effect the RS485 device s address and the command it receives is used to control access to the devices TXD channel This is a Full Duplex system Two twisted pair cables are required One twisted pair is the PC s TXD channel it carries the data sent from the PC s TXD outputs to the RXD inputs of each of the RS485 devices The second twisted pair is the Devices TXD channel it carries the data sent from each of the devices TXD outputs to the RXD inputs of the PC The advantages of this system are great since no new communications software is needed and the PC can talk and listen at the same time In effect the handshaking is performed by the intelligence of the RS485 devices attached to the PC When wired as below the PC can transmit data
20. akes a hardware device work Display a list of all the drivers in a specific tion so you can select the driver you want lt Back Cancel Select Search for the best driver for your device Click Next PCI Quad 422 485 Card Chapter 7 Windows 98 Millenium Installation e 30 Add New Hardware Wizard El Maso Windows Update M lt drive gt diskimgssswin9x ha lt Back tem Comes Click Specify a location In the location space type lt drive gt diskimg sswin9x where drive is the appropriate letter for your CDROM drive Click Next Add New Hardware Wizard Click Next Click Finish After copying the file Windows 95 will then detect each of the serial ports in turn and install them as communications ports PCI Quad 422 485 Card Chapter 7 Windows 98 Millenium Installation e 31 Checking the Installation Using the right hand mouse button click on the My Computer icon on your desktop Click on Properties System Properties Device Manager Hardware Profs Perfomance H 6 Hard disk controllers 83 Keyboard H Monitors gt Mouse E gt Multifunction adapters i Ly PCI Velocity Quad AS422 485 Autogating Card CC 346 E Network adapters 4 Ports COM amp LPT 4 Communications Port COM1 4 Printer Port LPT1 wo Velocity RS485 Port COMS5 wo Velocity RS485 Port COME I Velocity RS485 Port COM F Velocity AS485 Port COM8 Syst
21. ally helps to disconnect the keyboard from the PC since it tends to get in the way when the case is removed PCI Quad 422 485 Card Chapter 3 Installing the Card e 10 STEP 3 Remove the Blanking Cover Choose an empty expansion slot This Card will fit into one of the white PCI slots on your motherboad Remove the blanking cover protecting the slot on the PC back panel KEEP the blanking cover screw safely for later STEP 4 Insert The Card Now insert the card in the slot Be careful to ensure that the gold plated pcb fingers fits neatly into the I O expansion connector Press down firmly but evenly on the top of the card STEP 5 Secure the Card into Your PC The 9 pin D connector should fit neatly through the slot s aperture to the outside world Use the screw kept back from the blanking cover to screw the retaining bracket into the PC back panel housing PCI Quad 422 485 Card Chapter 3 Installing the Card e 11 STEP 6 Replace Cover Now replace the system unit s cover by carefully sliding it down and over the system unit Replace the cover screws STEP 7 Reattach All Cables After attaching all the monitor and keyboard cables power up the PC Do not forget the mains power cable The PC should power on in the normal way Problems If the system fails to power up normally check the following Ensure that the PC Serial card is installed correctly nsure that other cards in the PC hav
22. apter 10 Optional RS422 485 Operation e 49 Serial Port 1 To Other PC Cable SERIAL PORT 1 Side Other PC SERIAL PORT Side 9 Pin Female D Connector 9 Pin Female D Connector SCHEMATIC REPRESENTATION 5 GND GND 5 2 TXD RXDA zoaz 7 1 TXD RXD 6 7 RXD TXD xz 2 6 RXD D 1 9 CTS RIS 4 120Q 8 CTS RTS lt 3 4 RTS CTS 79 3 RTS ers A ACTUAL REPRESENTATION 5 GND TXD J 9 CTS RXD S 6 4 RTSt TXDt _ 2 gt 3 LCTS gt l RXD 3 RTS dh i ie gt i RTS 3 7 RXDt A CTS S 8 2 TXD AN RTS La 6 RXD CTS 9 1 TXD GND 5 Note Receiver ends terminated in characteristic impedance ONBOARD resistor networks USE BELDEN TYPE 9729 etc see above RS485 Gating amp Multiplex Jumpers as Factory Set RS485 Operation The RS485 standard is intended for up to 32 driver receiver pairs on the bus The line drivers used in the Serial Solutions RS422 485 card are designed to work correctly in both RS422 and RS485 systems The main difference therefore is in how the system is implemented Though the card uses a 9 pin
23. at the FIFO for all ports is left enabled 485 Mode offers the options Half Duplex Full Duplex default are used in conjunction with the RS485 Multiplex Jumper Settings NOTE These software settings must match the RS485 Multiplex Jumper configuration as described in the section PCI Quad 422 485 Card Chapter 8 Windows NT 4 0 Installation e 42 RS485 Multiplex Jumper Settings in Chapter 2 to ensure accurate and error free data transmission Force CTS True determines whether the CTS handshake signal is INPUT from the external serial device or is permanently forced true on the card The serial ports own RTS OUTPUT handshake signals are always taken out to the serial port connector Defaults When clicked this button resets the advanced properties to the followed settings FIFO Off On unchecked Transmit Buffers 1 Receive Buffers 8 Use Extended FIFO Off Unchecked 485 Mode Full Duplex Uninstalling Serial Solutions PCI To uninstall Serial Solutions PCI From Control Panel open the Add Remove Programs applet then close the Control Panel Select from the list Serial Solutions PCI Click the Add Remove button Windows NT will then uninstall the Serial Solutions PCI applet without the need for restarting PCI Quad 422 485 Card Chapter 8 Windows NT 4 0 Installation 43 Chapter 9 Windows 2000 Installation Software Installation After inserting the PCI card into an available s
24. bits sec 4000 Feet 1219m 100 Kbits sec TTL D R TITL The RS485 Standard The RS485 standard is similar to the RS422 standard upon which it is based The main difference is that up to 32 transmitter receiver pairs may be present on the line at one time A 120 Ohm resistor should be used to terminate either end of the main line If more than one device may transmit data the RTS line is used as transmit enable _ signal so preventing contention between talkers RS485 Standard Up to 32 Driver Receiver Pairs Line Length Max Data Rate 40 Feet 12m 10 Mbits sec 400 Feet 122m 1 Mbits sec 4000 Feet 1219m 100 Kbits sec D IR D R IR Terminating Impedance s RS422 and RS485 lines should be terminated at the end of the main branch of the RECEIVER in the cables characteristic impedance These terminating impedance s stop echoes caused by the serial data being reflected back at the cable ends It is not necessary to terminate the transmitter end of the twisted pair PCI Quad 422 485 Card Chapter 10 Optional RS422 485 Operation 48 The AT Dual Port RS422 485 Opto Isolated AT Dual Port RS422 485 and AT Velocity RS422 485 cards have the correct 120 Ohm nominal terminating resistors for the RXD twisted pair line and the CTS twisted pair line fitted on the RS422 485 card for both the serial ports on the card There
25. d setup of each card be it PCI ISA or PCMCIA PCI Quad 422 485 Card Chapter 1 Serial Solutions 4 SsPort sys The driver which gets COM ports going SsPar sys The driver for Parallel ports SsCard dll A Dynamic Link Library which provides a user interface to configure cards and their ports under Device Manager Multi port serial adapters SsCard hlp The help file for the SsCard dll user interface Complete Documentation and Technical Backup We believe in supplying complete documentation with every package we sell We guarantee your Serial Solution Software package for a full 12 months from purchase A complete technical backup service is available to ensure that you get the maximum performance out of your investment PCI Quad 422 485 Card Chapter 1 Serial Solutions e 5 Chapter 2 Hardware Configration Introduction This chapter details the specifications of the PCI quad RS422 485 card and explains how to configure the RS485 Multiplex jumpers present on both cards These half sized cards will work happily in any PCI 2 0 or greater compliant PC compatible Card Features VV VV VV Y Y Vv Four independent 9 pin D RS422 485 Serial ports Reliable communications up to 4000 feet 1 2 Kilometres 16950 FIFO provides 128 byte input and 128 byte output buffer on each port Maximum baud rate of 912600 Baud 1 Megabaud Word length of 5 6 7 or 8 bits Even Odd None Mark or Space parity op
26. damage to the receiver may occur and communication may be corrupted or prevented The on board fail safe short circuit detection prevents the line impedance from going to zero and thus protects the inputs of receivers and the outputs of drivers RS422 Operation Generally in RS422 systems all 8 signal lines from the 9 pin D connector participate in the data transfer sequence thus 4 twisted pair cables are used One twisted pair carries the TXD data outwards one pair brings the RXD data inward another pair carries the RTS handshake outwards and the fourth pair brings the CTS handshake inwards There is no need to carry the ground from one device to another This RS422 arrangement allows data to be transmitted and received simultaneously since each signal has its own data cable pair In addition the receiver can set RTS true so telling the transmitter on its CTS input that the receiver is ready to accept data In this way no data will ever be transmitted when the receiver is unable to accept it due to a full input buffer etc And so no data will be lost RS422 Serial Port Cables Use screened twisted pair Belden cable 9729 and 9829 L type 2493 and 2919 or IBM Part No 4716748 cable to make the RS422 connection Unscreened Belden type 8795 may also be used in less noisy environments The on board resistor networks terminate the receiving end of the twisted pair cable in its characteristic impedance PCI Quad 422 485 Card Ch
27. e not been upset Ensure that the power is connected and the PC is switched ON If all these have been checked and the PC still does not power up then inspect the area surrounding the card to ensure that any potentially harmful bits of metal etc are not present if the problem persists ask your dealer to check the card or contact help brainboxes com PCI Quad 422 485 Card Chapter 3 Installing the Card e 12 Chapter 4 DOS Software Configration Introduction This section contains the installation procedures of the PCI VELOCITY RS422 485 card with the DOS Windows 3 x Windows 95 Windows 98 Millennium Windows NT and Windows 2000 operating systems The setup procedures in this chapter assume that your PC has only one serial port present Determining PCI RS422 485 Resources Insert card into PC as described in Run BBCARDS EXE from the supplied Serial Solutions CDROM by typing the following D diskimg ssutil pci BBCARDS Where D is the Letter of your CDROM drive BBCARDS EXE will return a string that looks similar to the following values contained in the string may differ in individual PC s due to resource availability card 1 is on bus 0 device 16 function 0 Card ID 5 revision 1 4 Port Velocity RS422 485 interrupt line 11 has been assigned 4 sets of 16550 compatible registers are at I O address 0140 Baud clock control is at I O address 02d0 Write Oxf6 for 8 default Oxf2 for 4 0xd6 for 2
28. eive its sets RTS output true The DSR and DCD inputs are ignored The DTR output line is set true just in case the external serial device needs a true signal Type 2 RS485 Half duplex Before any data is sent the PC sets RTS true after the last byte in the buffer has been sent the PC sets RTS false RTS is used as a transmit gating control The CTS DSR and DCD inputs are ignored The DTR output line is set true just in case the external serial device needs a true signal Type 3 RS485 Send only This is a half duplex transmit only handshake The PC transmits whenever it wishes it cannot receive any data The CTS DSR and DCD inputs are ignored The RTS output line is set true just in case the external serial device needs a true signal Type 4 3 Wire Handshake Really no handshake at all since the PC transmits irrespective of the handshake lines The 3 wires are TxD RxD and Ground no other lines are required Thus the CTS DSR and DCD inputs are ignored The RTS and DTR output lines are set true just in case the external serial device needs a true signal Note If hardware handshaking is not specified in the NEWCOM SYS parameters type 4 3 Wire Handshake is selected automatically Configuring And Installing NEWCOM SYS To load the Serial Solutions for DOS device driver an entry needs to be added to the CONFIG SYS file Any simple text editor EDIT for example can edit the CONFIG SYS file for example The installation procedure giv
29. em devices E Universal Serial Bus controllers PCI Quad 422 485 Card Chapter 7 Windows 98 Millenium Installation e 32 When the Device Manager is viewed the PCI 1 port Velocity R422 485 card will appear under the Multi function adapters branch Also a Velocity RS485 Port will appear under the Ports COM LPT branch For most users who have 4 or less COM ports the new port will appear as COMS as pictured above for users with more than 5 COM ports the new port will appear as the first available COM ports Click for Card Settings Click for Port Settings Card Settings My Computes Properties Using the right hand mouse button click on the My Computer icon on your desktop Click on Properties System Properties Device Manager Hardware Proies Performance Click on the Device Manager tab PCI Quad 422 485 Card Chapter 7 Windows 98 Millenium Installation e 33 System Properties Network adapters Ports COM amp LPT Communications Port COM1 Printer Port LPT 1 Velocity RS485 Port COM5 Velocity RS485 Port COME Velocity RS485 Port COM 4 Velocity RS485 Port COM8 System devices Universal Serial Bus controllers Select the PCI Velocity RS422 485 card from the Multi Function Adapter entry in Device Manager serial and click on properties to view the cards general properties Click on the Serial Solutions tab Solutions tab produces
30. en below is for a PCI RS422 485 as COM 5 8 The parameter required by the NEWCOM SYS driver are those returned by the BBCARDS EXE application earlier A brief explanation for the parameters required by NEWCOM SYS follows Port Address A5 8 0140 COM ports 5 6 7 and 8 are defined with an i o address range that begins at 0140h and all subsequent ports have an i o address that is 8 higher than the PCI Quad 422 485 Card Chapter 4 DOS Software Configration e 14 previous i e if COMS has an address of 0140h then COM6 will have an address of 0148h COM7 an address of 0150h etc IRQ Range 111 5 11 is the IRQ and since the COM port is COMS is entered 5 Number Buffer B8 buffers are defined though only four ports are in use this is because buffers in DOS are assigned in a sequential order from COM1 Since the PCI Quad RS232 has been assigned COM port values of 5 to 8 all preceding COM ports must have buffers assigned to them also Buffer Size S512 Buffer size set to 512 bytes Hardware Handshaking H 4 Type 4 3 Wire Handshake selected for all ports Type 4 3 Wire Handshake selected for all ports Modifying Command Line Parameters When assembled the NEWCOM SYS command line looks like DEVICE NEWCOM SYS A5 8 0140 I 11 5 8 B8 S 512 H 4 and should be entered into the CONFIG SYS file Once you are sure that these parameters have been entered correctly restart your PC and your PCI Quad RS4
31. es are receive only they do not transmit any data at all Half Duplex Settings of RS485 Multiplex TX RX1 Ha TX RX1 ME Both jumpers shorted causing the RXD amp TXD and the RXD 8 TXD signals to short together at the 9 pin connector RS485 Many Talkers Many Listeners Half Duplex Another popular RS485 layout is for multiple talkers and multiple listeners This is shown below This is also known as party line transmission It is imperative to have some method of preventing two devices trying to drive the data lines at the same time The normal method is to use the RTS line as a talk enable The RTS line should go true immediately prior to the data transmission and go false immediately after the last byte in the stream is sent TXD1 TXD n 1204 1208 TXD1 TXD n RXD1 L RXDn RXD1 RXDn RXD2 RXD3 RXDn 1 RXD2 4 RXD3 RXDn 1 TXD2 TXD3 TXDn 1 TXD2 TXD3 TXDn 1 Note BOTH ends of MAIN line terminated in characteristic impedance stubs off main line not impedance since both ends receive The twisted pair ends are wired to both RXD amp TXD and RXD amp TXD at each RS485 device PCI Quad 422 485 Card Chapter 10 Optional RS422 485 Operation e 51 RS485 Many Talkers Many Listeners Full Duplex The RS485 many talkers many listeners Full Duplex system can be used when all the R
32. eset to the default values of Enable FIFO On Checked Extend FIFO Off Unchecked Receive Buffer 3 from left Transmit Buffer 16 485 Mode Full duplex PCI Quad 422 485 Card Chapter 7 Windows 98 Millenium Installation e 38 Chapter 8 Windows NT 4 0 Installation Introduction Microsoft Windows NT Provides built in support for 255 standard serial ports To setup your PCI RS422 485 serial card you should follow these steps Please note that to change any kind of hardware configuration under Windows NT you must be logged in as a user with Administrator level privileges if you do not have these please contact your system administrator Software Installation Insert the PCIQuad Velocity RS422 485 into your PC as described in chapter 2 and restart Place the supplied CDROM titled Serial Solutions Software in a suitable drive and from the Start Menu choose Run x 10 4 LE Shut Down amp Windows NT Workstation eix Type the name of a program folder or document and Windows will open it for you Open k drive gt diskimg ssnt setup X M Bon in Seperate Memon Space Cancel Browse Enter lt drive gt diskimg ssnt setup where lt drive gt is the path to the CDROM drive containing the installation disk InstallShield will then install the driver software automatically it will then copy the necessary files and start itself This automatically detects your new PCI
33. ftware Configuration 24 System Properties Communications Port COM1 4 Printer Port LPT1 J Velocity RS485 Port COM5 Y Velocity RS485 Port COME A Velocity RS485 Port COM a Velocity RS485 Port COMS System devices Universal serial bus controller Select the PCI Quad Velocity RS422 485 card from the Multi Function Adapter entry in Device Manager serial and click on properties to view the cards general properties Click on the Serial Solutions tab Solutions tab produces PCI Velocity Quad RS422 485 Autogating Card CC 3 FA EG oe ea CS eee eeen poo foo al ren 2 In this window the COM port assignment may be changed simply by selecting a new COM port value from the pull down menu relevant to the port However COM port usage other than those for the PCI Quad Velocity RS422 485 card itself are not checked so it is advisable to first check which COM ports are in use port availability can be checked by viewing the Device Manager PCI Quad 422 485 Card Chapter 6 Windows 95 Software Configuration e 25 AAA eee A ee ee ee gern Y eee pee wey a y Ports COM amp LPT E in Y Communications Port COM1 jus J Printer Port LPT 1 Hee in Y Velocity RS485 Port COM5 deen lo Y Velocity RS485 Port COME Hee ln Y Velocity RS485 Port COM Bese ian Y Velocity RS485 Port COMS All COM ports present will be listed under the entry Ports COM amp LPT The abo
34. gly recommended that the FIFO for both ports is left enabled Extend FIFO when checked extends the selected ports FIFO buffer from 16 to 64 bytes Receive Buffer These settings allow the selection of a receiver FIFO trigger setting Selecting a low value will allow the interrupt to be serviced quicker which is good for slow machines If you have a fast machine setting a high value will give you more time for multi tasking operations Transmit Buffer These settings allow the selection of a transmitter FIFO trigger setting Selecting a low value will send fewer data bytes per interrupt and this is recommended if you are communicating to a slower machine Selecting a high value will send more data bytes per interrupt and will give more time for multi tasking operations 485 Mode offers the options Half Duplex Full Duplex default are used in conjunction with the RS485 Multiplex Jumper Settings NOTE These software settings must match the RS485 Multiplex Jumper configuration as described in the section RS485 Multiplex Jumper Settings in Chapter 2 to ensure accurate and error free data transmission CTS Hold True determines whether the CTS handshake signal is INPUT from the external serial device or is permanently forced true on the card The serial ports own RTS OUTPUT handshake signals are always taken out to the serial port connector Restore when this button is clicked the settings in the current window will be r
35. he Card into Your PCO oooooocccononccocononcnonononcncnnnncnononnnnnonnnnnnononnnnnnnnannnnos 11 STEP 6 Replace Covent iii iii lib 12 STEP 75Reattach All Cables usina licencia 12 NR 12 Chapter 4 DOS Software Configration 13 Introducido etree ener 13 Determining PCI RS422 485 Resources ccooccconccconcnononccnonccnonccnonanonnnnononccnonccnnccnonacinnnss 13 NEWCOM2S YS Parameters sn orree tE aE A E E E EA T RAR SEAS 13 Configuring And Installing NEWCOM SYS cococccconccconnnononcnnonncnonanonnnccnnnncnonaccnnnncnnnnnnos 14 Modifying Command Line Parameters ecceeescessseecsseecsececeseeeesneecsaeesaeerseessneeeesaee 15 Chapter 5 Windows 3 x Software Configuration 16 Introducido icala 16 Determinme PCL Resources iii 16 Windows 3 x Driver Installation c cccesssccceeesnceeceenceeeceeeeeeeenaeeeceenneeesseeeeeesneeeess 16 Serial Port Installation iii Macatee 17 PCI Quad 422 485 Card Contents e i Configuring The COM Ports ninsi asii E E E aa 19 Deleting Ports in WINdOWSa ases nennen naa aE E T E sunsaayetenuetes Seanaanies 20 Chapter 6 Windows 95 Software Configuration 21 Introduction cia 21 Card Settilgs o coi iaa taa 24 PortiSettiles ca li 26 Serial Solutions Port Setas nai lid 28 Chapter 7 Windows 98 Millenium Installation 30 Checkins the Installation cti lidia isla isla 32 Card Setting iii oaitni anio octal toi once 33 Port Sett 8S israel 35 Chapter 8 Windows NT 4 0 Installation 39 A NI eee
36. ices Comtest exe Comtest is a short but invaluable program that is used to check that the serial port at a particular I O address is functioning correctly and is connected to the particular IRQ line The program correctly identifies the UART type by employing the built in loop back capability of the PC serial port chip a full test of the baud rate generator transmitting and receiving buffer parity enable and start stop bit is performed There is no need for a second serial port or a cable when using this utility Serial Solutions For Windows 3 x Serial Solutions for Windows 3 x works with Windows 3 0 3 1 and 3 11 as well as Windows For Workgroups 3 11 Serial Solutions for Windows 3 x consists of the following programs Setup exe The install routine for the package Port DLL Enhanced Control Panel applet Allows configuration of extra serial ports from the Windows Control Panel Supports single as well as multiport cards using shared interrupts BbLynx drv Replacement for COMM DRV LynxAPLdll Enhancement to the Windows Comms API s allowing support for more than 9 ports Term exe Terminal program EasyCWIN C source code project files and ready to run exe program for an easy to understand Windows terminal program Learn how to write Windows comms apps correctly the easy way PCI Quad 422 485 Card Chapter 1 Serial Solutions e 3 Serial Solutions For Windows 9x Windows 95 has an improved communicati
37. ited Velocity Quad RS422 485 Autogating Card CC 346 iY Ports COM amp LPT 1 3 Brain Boxes Serial Port COM6 4 Brain Boxes Serial Port COM7 4 Brain Boxes Serial Port COMA Y Brain Boxes Serial Port COM 4 Communications Port COM1 A Printer Port LPT1 K Sound video and game controllers E System devices E Universal Serial Bus controllers Double Clicking on the Multi port serial adapters label will display the name of any installed cards Double Clicking on the Ports COM 8 LPT label will display all installed Ports PCI Quad 422 485 Card Chapter 9 Windows 2000 Installation e 47 Chapter 10 Optional RS422 485 Operation The RS422 Standard The RS422 standard defines a serial communications standard RS422 is a high speed and or long distance data transmission Each signal is carried by a pair of wires and is thus a differential data transmission system Over distances up to 40 feet the maximum data rate is 10 Megabits per second and for distances up to 4000 feet the maximum data rate is 100 Kilobytes per second A 120 Ohm resistor should be used to terminate the receiving end of the line It is generally used between one transmitter receiver pair to _ ONLY one other transmitter receiver pair but each output can drive up to 10 receivers RS422 Standard 1 Driver up to 10 Receivers Line Length Max Data Rate 40 Feet 12m 10 Mbits sec 400 Feet 122m 1 M
38. ld be used in series with the shield to avoid possible large current flow due to differences in ground potential Any one of the methods shown below can do this Configuration A 100Q 1 2 W GWG Configuration B SG GWG ay Signal Ground Interchange circuit Green wire ground of power system Protective ground of frame ground Circuit ground or circuit common Configuration A The circuit common of the equipment is connected to protective ground at one point only by a 100 Q 20 resistor with a power dissipation rating of 1 2W An additional provision may be made for the resistor to be bypassed with a strap to connect signal common and protective ground directly together when specific installation conditions necessitate PCI Quad 422 485 Card Chapter 10 Optional RS422 485 Operation e 53 Index 1 1 Megabaud 6 115200 Baud 32 43 16450 16550 2 6 4 460800 Baud 32 43 9 921600 Baud 32 43 A asynchronous 6 Autogating 6 7 B baud baud rate 3 BBCARDS EXE 15 17 18 Belden 57 bits 56 buffer 57 Buffer 17 buffer buffered 2 3 6 C cable 3 56 57 58 CD ROM 52 Changing COM numbers in Windows 95 29 39 COM 54 command 3 59 Configuring Ports In Microsoft Windows NT 45 CTS 2 6 56 57 58 D data word length 6 DCD 2 device driver 15 16 DSR 2 DTR 2 E emulation 3 F fail safe 56 57 FIFO 2 6 G gating 58 H handshake 2 57 impedance 56 57 5
39. lot and reconnecting all cables power up your machine The screen shot shown below will appear briefly on your screen Found New Hardware PCI Device lt Installing Found New Hardware Wizard Welcome to the Found New Hardware Wizard This wizard helps you install a device driver for a hardware device To continue click Next lt Back Insert the Serial Solutions CD ROM into an appropriate drive and click Next Found New Hardware Wizard Install Hardware Device Drivers AS A device driver is a software program that enables a hardware device to work with wy an operating system This wizard will complete the installation for this device a PCI Device A device driver is a software program that makes a hardware device work Windows needs driver files for your new device To locate driver files and complete the installation click Next What do you want the wizard to do x Display a list of the known drivers for this device so that can choose a specific ner lt Back Cancel Select Search for a suitable driver for my device Click Next PCI Quad 422 485 Card Chapter 9 Windows 2000 Installation e 44 Found New Hardware Wizard Locate Driver Files Where do you want Windows to search for driver files y mndows paste Select Specify a location Click Next Found New Hardware Wizard La E lt drive gt diskimg sswin2k ha
40. m Main select Control Panel Double click on Serial Ports PCI Quad 422 485 Card Chapter 5 Windows 3 x Software Configuration e 17 Control Panel M As aa Color Fonts Ports Sound Desktop Keyboard a 4 Printers International Date Time Power Serial ports Enhanced fe a Drivers To add a COM port Click on the add button and a Window similar to the following will be displayed In Standard Settings In the COM Base field enter the value 0140 Note COM ports are defined with an i o address range which in this case begins at 0140 and all subsequent ports have an i o address that is 8 higher than the previous i e if COM2 has an address of 0140h then COM3 has an address of 0148h In the IRQ field enter the value 11 Note The values used in the above section were those returned by the BBCARDS program as described in the above section When you have finished click on OK A restart message will be displayed to save time only restart when both ports have been added and correctly configured After adding the COM port the COM Ports Window will look similar to the following PCI Quad 422 485 Card Chapter 5 Windows 3 x Software Configuration e 18 Com001 0x03F8 04 Com002 0x0140 11 om003 0x0148 11 om004 0x0150 11 om005 0x0158 11 Configuring The COM Ports From the COM Ports window choose the port that you wish to configure and click on Settings Com003 0x0148 11 Com0
41. ndows 3 x Driver Installation Place the supplied Serial Solutions CDROM in a suitable drive From File Manager choose Run and enter D diskimg sswin3x setup where D is the path to the CDROM drive Containing the disk PCI Quad 422 485 Card Chapter 5 Windows 3 x Software Configuration e 16 E 7 TI Command Line DADISKIMGASSWIN3XASETUP EXE O Run Minimized Click OK the Setup Program Main Screen is displayed By default all component options will be installed selecting the Del All button will select all installed components for deletion and Add All chooses all uninstalled components for installation options may not be changed when the components are installed For further details on the Component Options consult the README TXT file on the supplied disk If only logical ports COM1 to COMO are to be used then de select the Comms API library option in the Install column This library is only necessary to allow the use of logical ports greater than COMO e g COM10 COM11 etc When you have made your choice of Component Options click Continue and when the setup program has finished select the Done button Note If the Serial Port driver options has been selected after the setup program has finished Windows will display a restart message answer Yes and Serial Solutions will be ready to run upon Windows restarting Serial Port Installation Read Me MS DOS Prompt ClipBook PIF Editor Viewer Fro
42. nes the baud rate at which the selected port operates the maximum value available is dependant upon the Maximum Baud Rate Setting see below Data Bits Parity Stop Bits Flow Control These settings are dependent upon the device being used PCI Quad 422 485 Card Chapter 6 Windows 95 Software Configuration e 27 Maximum Baud Rate Setting four values are available which selects the maximum baud rate at which the port may operate The table below indicates the ranges of baud rate values available at the Maximum Baud Rate Settings Maximum Baud Rate 115200 230400 460800 921600 50 100 200 400 75 150 300 600 110 220 440 880 150 300 600 1200 300 600 1200 2400 600 1200 2400 4800 1200 2400 4800 9600 1800 3600 7200 1440 2000 4000 8000 16000 2400 4800 9600 19200 3600 7200 14400 28800 4800 9600 19200 38400 7200 14400 28800 57600 9600 19200 38400 76800 19200 38400 76800 153600 38400 76800 153600 230400 57600 115200 230400 460800 115200 230400 460800 921600 Note Many serial comms applications will not actually register the ports as running at baud rates of above 115200 Restore Defaults when clicked resets the selected COM port to the following values Baud Rate 9600 Data Bits 8 Parity None Stop Bits 1 Flow Control Xon Xoff Maximum Baud Rate Setting 115 200 Serial Solutions Port Settings Clicking on the Serial Sol
43. nononccnnnccrnccnonccinnoos 51 RS485 Many Talkers Many Listeners Half Duplex ooooccnoncononcccnncncnocncnonccionccinnacinnnos 51 RS485 Many Talkers Many Listeners Full Duplex oooocnnnccnonccnoncccnoccconnncnonccionacinnoss 52 Optional Grounding Arrangement ceeseesseeseseecssceseseeceseecesaeecsaeessaeesseeeeseeeesaes 53 Index 54 PCI Quad 422 485 Card Contents e ii Introduction Guarantee BRAIN BOXES LIMITED guarantee your Serial Port Card for a full 36 months from purchase parts and labour provided it has been used in the specified manner In the unlikely event of failure return your interface to BRAIN BOXES LIMITED or to your Dealer with proof of purchase who will determine whether to repair or replace this product with an equivalent unit Copyright COPYRIGHT O 1985 2000 BRAIN BOXES LIMITED All rights reserved No part of this hardware circuitry or manual may be duplicated copied transmitted or reproduced in any way without the prior written consent of BRAIN BOXES LIMITED BRAIN BOXES Limited Unit 3C Wavertree Boulevard South Wavertree Technology Park Liverpool L7 9PF England Telephone 0151 220 2500 Fax 0151 252 0446 E mail help brainboxes com sales O brainboxes com Web www brainboxes com ACKNOWLEDGEMENTS BRAIN BOXES is a trademark of BRAIN BOXES LIMITED IBM COMPAQ Hewlett Packard H P and EPSON are trademarks of the relevant companies OS
44. on API and directly supports up to 255 ports Our Windows 95 driver supports the shared interrupt mechanism used on our multiport cards Serial Solutions for Windows 95 consists of the following programs PCLinf The information files to aid the ISA inf Installation process Have Disk ssmodem inf Setup file for Serial Solutions modems sscardui dll ssportui dll The device manager configuration DLLs and ssenum vxd ssv485 vxd the virtual device drivers providing the shared ssvel vxd ssmult vxd ssm485 vxd interrupt handlers and dispatch routines etc for the various Serial Solutions serial cards Serial Solutions For Windows NT Windows NT has an improved communication API and directly supports up to 255 ports No extra driver is necessary for Windows NT to drive multiport cards Serial Solutions for Windows NT consists of the following programs Setup exe Expands into the Control Panel applet and associated files which allows the configuration of all ports on Serial Solutions serial cards Ssmodem inf Setup file for Serial Solutions modems Serial Solutions for Windows 2000 BBISA inf BBMulti inf BBPCMCIA inf The ISA PCI and PCMCIA card information files which make the installation with the hardware installation wizard possible BBPort inf Information file which contains information for the installation of individual ports ssInstal sys The driver which handles the installation an
45. s are needed for Full Duplex communications Use screened twisted pair Belden cable 9729 and 9829 UL type 2493 and 2919 or IBM Part No 4716748 cable to make the RS485 connection Terminate the twisted pair cable PCI Quad 422 485 Card Chapter 10 Optional RS422 485 Operation e 50 at either end in its characteristic impedance which for the Belden 9729 cable is 120 Ohms Unscreened Belden type 8795 may also be used in less noisy environments RS485 One Talker Many Listeners Half Duplex There are several schemes for connecting RS485 devices depending on the characteristics of the system In many cases there will be only one device which can transmit data and all the others simply listen to it This scheme is used for theatrical lighting intensity control in the DMX512 standard This is shown below For the talker the RS485 TXD GATE jumper should remain in the factory set position i e transmitter is always enabled There is NO multiplexing of the TXD and RXD lines Data is only flowing one way from PC outwards and is thus a Half Duplex configuration only one twisted pair cable is needed TXD FRXD n 1200 TXD RXD n RXD1 RXD2 RXDn 2 RXDn 1 Note The Receiver end of MAIN line terminated in characteristic impedance by ONBOARD resistor networks stubs off the main not terminated In the above scheme one RS485 device is talk only it transmits data but it does not receive any The other RS485 devic
46. s of the external devices reply to the PC may be lost since the serial port transmitter is still gated onto the twisted pair cable To overcome this problem The 16950 has on chip autogating This option requires a special device driver supplied this automatically detects the start of the PC s data transmissions and gates the PC s transmitter onto the twisted pair cable It then automatically detects the last stop bit being sent and gates the port off the twisted pair cable but to an application on the host PC It looks just like an ordinary RS232 COM port Autogating for half duplex operation is a necessity for Windows 95 NT and Windows 2000 Card Layout and Specifications TET a z4 Ef k T P r f e Li t f a i F i T HE a a a F a f f 7 f a F a f bif Hr Hien HF aH Y ai at AT Quad 4 Port RS422 485 Specifications Dimensions 4 2 x 6 3 in 106 x 160 mm VO Connection 37 way female D connector to 4 serial ports Serial Port 1 9 pin Male D type Serial Port 2 9 pin Male D type Serial Port 3 9 pin Male D type Serial Port 4 9 pin Male D type PCI Quad 422 485 Card Chapter 2 Hardware Configration e 7 Port Pinouts 9 Pin D Connector PIN 6 RECEIVED DATA RXD PIN 7 RECEIVED DATA RXD PIN 8 CLEAR TO SEND CTS PIN 9 CLEAR TO SEND CTS PIN 1 PIN2 PIN 3 PIN 4 PIN 5 37 Way_D Connector PINTO PIN18 PIN17 PINT P
47. th hardware handshaking using any combination of the DTR DSR CTS RTS and DCD lines and a software handshake using the XON XOFF protocol NewCOM24 sys A device driver providing support for 24 ports NewCOM32 sys A device driver providing support for 32 ports NewMode exe A replacement for the DOS mode com command NewMode is used to set the serial parameters including the port address IRQ line used the baud rate parity and data and stop bit options Baud rates supported are from 110 baud to 115 200 baud Included is a very handy query mode that reports the settings of the various serial ports Flexible and fast EASY programs PCI Quad 422 485 Card Chapter 1 Serial Solutions 2 The EASY disk contains short simple to understand and use EASYBAS EASYC and ASYPAS programs providing straight forward file type I O to serial ports with debug information Use these FIRST base your sample applications on them Source code make files and compiled ready to run programs supplied TERM programs A suite of larger terminal emulation programs written in C Cterm Assembly language Aterm Pascal Pasterm BASIC BASterm and FORTRAN FORterm show how to access the NEWBIOS routines as well as the simple file T O to ports They contain many lines of code and are thus harder to grasp They demonstrate in depth serial port programming in a variety of languages but they are also useful tools for using serial dev
48. tions 1 start bit always sent 1 1 5 for 5 bit data word length or 2 stop bits TXD RXD RTS and CTS signals RS485 TXD RXD multiplex selectable by jumpers either FULL DUPLEX or HALF DUPLEX Fully double buffered for reliable asynchronous operation High speed integrated circuitry ensures operation with fast PC s e g 800 MHz Pentium II WITHOUT extra wait states Autogating low level RS485 half duplex 2 wire control Clock Input 60 00mHz Drivers SN75174 High Level Voltage 3 7V typical at 33mA source Low Level Voltage 1 1V typical at 33mA source High Level Current 60mA max Low Level Current 60mA max Receivers SN75175 Difftial I P threshold 200mV max Hysteresis 50m Volt typical Input Impedance gt 12K Ohm without terminators PCI Quad 422 485 Card Chapter 2 Hardware Configration e 6 Autogating Multitasking operating systems like Windows 95 Windows NT OS 2 and UNIX cannot successfully use the RTS line to control the gating of the PC s transmitter Whilst they can set the RTS line true just before the data transmission starts they cannot set the RTS line false quickly enough after the data has gone This is due to the time slicing mechanism used by these multitasking operating systems The interrupt service routines in multitasking OS s have a long latency i e time taken to switch context from the foreground program to the interrupt routine During this time the first few byte
49. try Ports Com LPT branch in Device Manager will the display general properties window for the selected port in this case COMS PCI Quad 422 485 Card Chapter 7 Windows 98 Millenium Installation e 35 System Properties 1 3 Floppy disk controllers Hard disk controllers Keyboard Monitor H A Mouse Multi function adapters PCI Velocity Quad RS422 485 Autogating Card CC 346 Y Ports COM amp LPT 4 Communications Port COM1 AF Printer Port LPT1 COMS 4 Velocity RS485 Port COME AF Velocity RS485 Port COM 4 Velocity RS485 Port COME System devices lt p Universal serial bus controller Selecting the Port Settings tab produces Velocity RS485 Port COM5 Properties a ec H None Xon off Settings available in this window are Baud Rate determines the baud rate at which the selected port operates the maximum value available is dependant upon the Maximum Baud Rate Setting see below Data Bits Parity Stop Bits Flow Control These settings are dependent upon the device being used Maximum Baud Rate Setting four values are available which selects the maximum baud rate at which the port may operate The table below indicates the ranges of baud rate values available at the Maximum Baud Rate Settings PCI Quad 422 485 Card Chapter 7 Windows 98 Millenium Installation e 36
50. ttings Restore Defaults when clicked resets the selected COM port to the following values Baud Rate 9600 Data Bits 8 Parity None Stop Bits 1 Flow Control Hardware PCI Quad 422 485 Card Chapter 8 Windows NT 4 0 Installation e 41 Advanced Port Settings When the Advanced button of Port Settings is selected the following dialogue is displayed Port Settings COM 2 24x Receiver Trigger Level 100 a Cancel Software Transmit Limit 24 Trigger Levels Cancel 422 485 Options Duplex Operation s422 485 full duplex mode CTS true 7 UART Type 750 y FIFO Depth 64 FIFO Off 1 Settings available in this window are FIFO settings Receive Trigger Level These settings allow the selection of a receiver FIFO trigger setting Selecting a low value will allow the interrupt to be serviced quicker which is good for slow machines If you have a fast machine setting a high value will give you more time for multi tasking operations Software Transmit Limit These settings allow the selection of a transmitter FIFO trigger setting Selecting a low value will send fewer data bytes per interrupt and this is recommended if you are communicating to a slower machine Selecting a high value will send more data bytes per interrupt and will give more time for multi tasking operations FIFO Off turns the selected ports FIFO buffer on or off It is strongly recommended th
51. utions tab will display Velocity RS485 Port COM5 Properties HE General Port Settings Serial Solutions Driver Resources Serial Solutions Serial Port Settings Shared Interupt Settings FIFO Settings T Extend FIFO Receive Buffer Low C Cc ol C High Transmit Buffer C4 ce 16 gt automate Herd Ware Row contra r 485 Mode Half Duplex Full Duplex I CTS Hold TRUE Restore Cancel PCI Quad 422 485 Card Chapter 6 Windows 95 Software Configuration e 28 Settings available in this window are FIFO Settings Enable FIFO turns the selected ports FIFO buffer on or off It is strongly recommended that the FIFO for both ports is left enabled Extend FIFO when checked extends the selected ports FIFO buffer from 16 to 64 bytes Receive Buffer These settings allow the selection of a receiver FIFO trigger setting Selecting a low value will allow the interrupt to be serviced quicker which is good for slow machines If you have a fast machine setting a high value will give you more time for multi tasking operations Transmit Buffer These settings allow the selection of a transmitter FIFO trigger setting Selecting a low value will send fewer data bytes per interrupt and this is recommended if you are communicating to a slower machine Selecting a high value will send more data bytes per interrupt and will give more time for multi tasking operations 485
52. ve is the appropriate letter for your CDROM drive After copying the file Windows 95 will then detect each of the serial ports in turn and install them as communications ports Using the right hand mouse button click on the My Computer icon on your desktop Click on Properties My Computer Properties Select on the Device Manager tab System Properties Floppy disk controllers Hard disk controllers Keyboard Monitor Mouse Q Multifunction adapters lt Q PCI Velocity Quad RS422 485 Autogating Card CC 346 Y Ports COM amp LPT 4 Communications Port COM1 4 Printer Port LPT1 4 Velocity RS485 Port COM5 stem devices Universal serial bus controller PCI Quad 422 485 Card Chapter 6 Windows 95 Software Configuration e 23 When the Device Manager is viewed the PCI Quad Velocity R422 485 card will appear under the Multi function adapters branch Also four Velocity RS485 Ports will appear under the Ports COM amp LPT branch For most users who have 4 or less COM ports the new ports will appear as COMS 8 as pictured above for users with more than 5 COM ports the new port will appear as the first available COM ports Card Settings Using the right hand mouse button click on the My Computer icon on your desktop Click on Properties My Computes Properties System Properties Click on the Device Manager tab PCI Quad 422 485 Card Chapter 6 Windows 95 So
53. ve screenshots indicates that COM2 4 and COMO and above are not installed and therefore may be used The Maximum Baud Rate Setting for all ports on the card may also be set from this window This settting will make the maximum baud rates of all the ports on this card equal to whatever is set Individual ports may have their settings changed as shown in Port Settings Port Settings Using the right hand mouse button click on the My Computer icon on your desktop Click on Properties My Computes Properties System Properties Click on the Device Manager tab PCI Quad 422 485 Card Chapter 6 Windows 95 Software Configuration e 26 System Properties 2 4 Floppy disk controllers amp Hard disk controllers ee Keyboard Monitor Mouse lt Y Multifunction adapters lt gt PCI Velocity Quad RS422 485 Autogating Card CC 346 4 Ports COM amp LPT 4 Communications Port COM1 Printer Port LPT1 4 Velocity RS485 Port COMB wo Velocity RS485 Port COM Velocity RS485 Port COM8 System devices H Universal serial bus controller Double clicking on a Velocity RS485 Port entry from the entry Ports Com amp LPT branch in Device Manager will the display general properties window for the selected port in this case COMS Selecting the Port Settings tab produces Velocity RS485 Port COM5 Properties Settings available in this window are Baud Rate determi

PCI Quad 422/485 Card

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