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PCI Quad Opto

RS422/485 Card 1.1

By Paul D. Sinclair.

Summary of Contents for CC-368

Page 1: ...PCI Quad Opto RS422 485 Card 1 1 By Paul D Sinclair...

Page 2: ...rt Pinouts 8 Configuring the Card 8 Optical Isolation 10 Chapter 3 Installing the Card 11 STEP 1 Remove Cover Mounting Screws 11 STEP 2 Remove The PC Cover 11 STEP 3 Remove the Blanking Cover 12 STEP...

Page 3: ...nced Port Settings 43 Uninstalling Serial Solutions PCI 44 Chapter 9 Windows 2000 Installation 45 Software Installation 45 Checking your Installation 47 Chapter 10 Optional RS422 485 Operation 49 The...

Page 4: ...OXES 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 BRA...

Page 5: ...f 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 seri...

Page 6: ...d 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 generato...

Page 7: ...he 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...

Page 8: ...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 documenta...

Page 9: ...Word length of 5 6 7 or 8 bits Even Odd None Mark or Space parity options 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 se...

Page 10: ...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 supplie...

Page 11: ...PIN22 CTS1 PIN21 RXD1 PIN20 RXD1 PIN19 GROUND PIN18 CTS4 PIN17 CTS4 PIN16 RXD4 PIN15 RXD4 PIN14 GND3 PIN12 RTS3 PIN11 TXD3 PIN10 TXD3 PIN9 CTS2 PIN8 CTS2 PIN7 RXD2 PIN6 RXD2 PIN5 GND1 PIN4 RTS1 PIN3...

Page 12: ...s port 1 Both jumpers left unconnected not shorted Half Duplex Settings port 1 Both jumpers shorted causing the RXD TXD and the RXD TXD signals to short together at the 9 pin connector The multiplex j...

Page 13: ...refer to Chapter 10 Optional RS422 485 Operation Optical Isolation The PCI Quad OPTO RS422 485has optical isolation circuitry on board that allows protection of 1500 Volts DC 1000 Volts AC This Isolat...

Page 14: ...any interface board STEP 1 Remove Cover Mounting Screws 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...

Page 15: ...ng 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 fir...

Page 16: ...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 have not been u...

Page 17: ...s 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 Quad Opto RS422 485 in...

Page 18: ...R 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 tra...

Page 19: ...RS422 485 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 Wi...

Page 20: ...ARDS 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...

Page 21: ...supplied disk If only logical ports COM1 to COM9 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 grea...

Page 22: ...s 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...

Page 23: ...ort that you wish to configure and click on Settings the following dialogue will be displayed Note A port that has been added has the default values of Baud Rate 9600 Data Bits 8 Parity None top Bits...

Page 24: ...utton 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...

Page 25: ...apter 3 and switch your computer on again During the booting process Windows 95 will detect the PCI Quad Opto RS422 485 but will display it simply as a PCI CARD and you will briefly see a message box...

Page 26: ...drive is the appropriate letter for your CDROM drive Click OK The screen shot above shows that the Update Device Driver Wizard has found a suitable driver and the location of that driver Click Finish...

Page 27: ...evice Manager tab When the Device Manager is viewed the PCI Quad Opto R422 485 card will appear under the Multi function adapters branch Also four RS485 Ports will appear under the Ports COM LPT branc...

Page 28: ...ion x 25 Click on the Device Manager tab Select the PCI Quad Opto RS422 485 card from the Multi Function Adapter entry in Device Manager serial and click on properties to view the cards general proper...

Page 29: ...be checked by viewing the Device Manager All COM ports present will be listed under the entry Ports COM LPT The above screenshots indicates that COM2 4 and COM9 and above are not installed and therefo...

Page 30: ...ration x 27 Click on the Device Manager tab Double clicking on a RS485 Port entry from the entry Ports Com LPT branch in Device Manager will the display general properties window for the selected port...

Page 31: ...nges 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...

Page 32: ...er 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 machin...

Page 33: ...ion 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 a...

Page 34: ...our 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 Quad Opto RS422 485 but will display it simply a...

Page 35: ...fy a location In the location space type drive diskimg sswin9x where drive is the appropriate letter for your CDROM drive Click Next Click Next Click Finish After copying the file Windows 95 will then...

Page 36: ...85 Card Chapter 7 Windows 98 Millenium Installation x 33 Checking the Installation Using the right hand mouse button click on the My Computer icon on your desktop Click on Properties Click on the Devi...

Page 37: ...RS485 Ports will appear under the Ports COM LPT branch For most users who have 4 or less COM ports the new ports will appear as COM5 to COM8 as pictured above for users with more than 5 COM ports the...

Page 38: ...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 Opto RS422 485 card itself...

Page 39: ...atever is set Individual ports may have their settings changed as shown in Port Settings Click Here for Port Settings Port Settings Using the right hand mouse button click on the My Computer icon on y...

Page 40: ...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...

Page 41: ...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 act...

Page 42: ...d 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 Dupl...

Page 43: ...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 Ins...

Page 44: ...py the necessary files and start itself This automatically detects your new PCI serial card s and does not require any further system restarting Examining Card Configuration Go to Control Panel Start...

Page 45: ...urces tab 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 Me...

Page 46: ...w 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 Tr...

Page 47: ...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 u...

Page 48: ...2000 Installation Software Installation After inserting the PCI card into an available slot and reconnecting all cables power up your machine The screen shot shown below will appear briefly on your sc...

Page 49: ...ch for a suitable driver for my device Click Next Select Specify a location Click Next In the box under Copy manufacturers files from type CDROM Drive diskimg sswin2k where CDROM Drive is the letter o...

Page 50: ...00 Installation x 47 Click Next Click Yes Click Finish The system will then detect the ports briefly showing the above screen shot Checking your Installation Using the secondary Right mouse button cli...

Page 51: ...lation x 48 Click Properties Select the Hardware tab Click Device Manager Double Clicking on the Multi port serial adapters label will display the name of any installed cards Double Clicking on the Po...

Page 52: ...eiver 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 Fe...

Page 53: ...uerade 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 circui...

Page 54: ...figurations 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 pe...

Page 55: ...er 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...

Page 56: ...m 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 req...

Page 57: ...rge current flow due to differences in ground potential Any one of the methods shown below can do this Configuration A GWG 100 1 2 W SG Configuration B GWG SG SG Signal Ground Interchange circuit GWG...

Page 58: ...16 DSR 2 DTR 2 E emulation 3 F fail safe 56 57 FIFO 2 6 G gating 58 H handshake 2 57 I impedance 56 57 58 59 61 installation 4 15 Installing Ports In Microsoft Windows 95 98 23 Installing ports in Win...

Page 59: ...d Index x 56 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 4...

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