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PCI 1 Port RS422/485

Hardware Setup

Chapter 2 Page 12

Figure 2-1. PCI 1PORT VELOCITY RS422/485
Layout.

RS485 Multiplex jumper block

PCI 1 PORT VELOCITYRS422/485 Specifications:

Dimensions:

4.8 x 2.5 in, 122 x 63.5 mm

I/O Connection:

Serial Port 1: 9 pin Male D type.

Weight: 90g

Figure 2-3. 9 Pin D Connector Port Pinouts.

3,1 *5281' *1'

3,1 75$160,77(' '$7$ 7;'

3,1 5(&(,9(' '$7$ 5;'

3,1 &/($5 72 6(1' &76

3,1 5(48(67 72 6(1' 576

3,1 75$160,77(' '$7$ 7;'

3,1 5(48(67 72 6(1' 576

3,1 5(&(,9(' '$7$ 5;'

3,1 &/($5 72 6(1' &76

TX/
RX1-

TX/
RX1+

MULTIPLEX

RS485

Содержание 1 Port PCI Velocity RS422

Страница 1: ...1 1 EDITIO N JAN UARY 2000 UDLQ R HV...

Страница 2: ...lowing standards CE standard EN55022 1987 Class B IEC 801 2 1991 Level 2 IEC 801 3 1984 Level 2 IEC 801 4 1998 Level 2 PCB IEC 249 2 5 NEMA L1 1 10 DIN 40802 UTE C 93 711 BS 4584 MIL P 13949E UL Appro...

Страница 3: ...cifications gives details of the PCI Velocity RS422 485 specifications and shows you how to install your PCI Velocity RS422 485 card Chapter 3 PCI Velocity RS422 485 Software Configuration Guide shows...

Страница 4: ...eneral PCI RS422 485 Serial Port Features 11 Autogating 11 Configuring The PCI RS422 485 Cards 13 Full Duplex Settings 13 With Half Duplex Settings 13 Hardware Installation 14 Problems 15 CHAPTER 3 PC...

Страница 5: ...ation 48 Configuring Ports 49 Advanced Port Settings 50 Uninstalling Serial Solutions PCI 52 CHAPTER 4 ADDITIONAL RS422 485 OPERATION 53 The RS422 Standard 53 The RS485 Standard 53 Terminating Impedan...

Страница 6: ...ng components Serial Solutions for DOS Serial Solutions for Windows 3 x Serial Solutions for Windows 95 98 Serial Solutions for Windows NT All the Serial Solutions drivers have the following features...

Страница 7: ...f the various serial ports Flexible and fast EASY programs The EASY disk contains short simple to understand and use EASYBAS EASYC and ASYPAS programs providing straight forward file type I O to seria...

Страница 8: ...nel 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 LynxAPI dll...

Страница 9: ...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 Seri...

Страница 10: ...e communications up to 4000 feet 1 2 Kilometres 16C750 FIFO provides 64 byte input and 64 byte output buffer on each port Maximum baud rate of 921 600 Baud 1 Megabaud Word length of 5 6 7 or 8 bits Ev...

Страница 11: ...g 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 b...

Страница 12: ...CITYRS422 485 Specifications Dimensions 4 8 x 2 5 in 122 x 63 5 mm I O Connection Serial Port 1 9 pin Male D type Weight 90g Figure 2 3 9 Pin D Connector Port Pinouts 3 1 5281 1 3 1 75 160 77 7 7 3 1...

Страница 13: ...e RXD TXD and the RXD 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 t...

Страница 14: ...l Card STEP 5 The connectors should fit neatly through the slot s aperture to the outside world STEP 6 Now replace the system unit s cover by carefully sliding it Choose an empty expansion slot Remove...

Страница 15: ...to power up normally check the following i Ensure that the PCI Serial card is installed correctly ii Ensure that other cards in the PC have not been upset iii Ensure that the power is connected and th...

Страница 16: ...ter the PCI RS422 485 card is inserted 1 Determining the resources that the PCI RS422 485 has claimed 2 Informing the Serial Solutions DOS device driver of those resources Determining PCI RS422 485 Re...

Страница 17: ...owed by a hexadecimal address in the form Ax y where x is COM port range and y is I O address I IRQ range specifies card interrupt and COM port range The COM port range specifies the COM port s Range...

Страница 18: ...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...

Страница 19: ...returned by the BBCARDS EXE application earlier A brief explanation for the parameters required by NEWCOM SYS follows Port Address A5 0140 COM port 5 is defined with an i o address of 0140h IRQ Range...

Страница 20: ...the NEWCOM SYS command line looks like DEVICE NEWCOM SYS A5 0140 I 11 5 B5 S 512 H 4 and should be entered into the CONFIG SYS file Once you are sure that these parameters have been entered correctly...

Страница 21: ...lutions 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 th...

Страница 22: ...nt 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 w...

Страница 23: ...tup 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 Seri...

Страница 24: ...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 po...

Страница 25: ...ave 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...

Страница 26: ...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...

Страница 27: ...Hardware Installation in Chapter 2 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...

Страница 28: ...5 Software Setup Chapter 3 Page 28 The Wizard should then display the following Click Other Locations In the location space type drive diskimg sswin9x where drive is the appropriate letter for your CD...

Страница 29: ...Page 29 Click Finish 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 Comp...

Страница 30: ...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 po...

Страница 31: ...lti 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 The I O address and interrupt...

Страница 32: ...isable to first check which COM ports are in use port availability can be checked by viewing the Device Manager All COM ports present will be listed under the entry Ports COM LPT The above screenshots...

Страница 33: ...t operates the maximum value available is dependant upon the Maximum Baud Rate Setting see below 2 Data Bits 3 Parity 4 Stop Bits 5 Flow Control 6 Maximum Baud Rate Setting four values are available w...

Страница 34: ...00 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 s...

Страница 35: ...n 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...

Страница 36: ...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 han...

Страница 37: ...ction Hardware Installation in Chapter 2 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...

Страница 38: ...8 The Wizard should then display the following Select Search for the best driver for your device Click Next Click Specify a location In the location space type drive diskimg sswin9x where drive is the...

Страница 39: ...CI 1 Port RS422 485 Software Setup Chapter 3 Page 39 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 port...

Страница 40: ...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...

Страница 41: ...he 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 The I O address and inter...

Страница 42: ...dvisable to first check which COM ports are in use port availability can be checked by viewing the Device Manager All COM ports present will be listed under the entry Ports COM LPT The above screensho...

Страница 43: ...operates the maximum value available is dependant upon the Maximum Baud Rate Setting see below 9 Data Bits 10 Parity 11 Stop Bits 12 Flow Control 13 Maximum Baud Rate Setting four values are available...

Страница 44: ...0 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 se...

Страница 45: ...n 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...

Страница 46: ...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 han...

Страница 47: ...ease contact your system administrator Software Installation Insert the PCI 1 Port Velocity RS422 485 into your PC as described in chapter 2 and restart Place the supplied CDROM titled Serial Solution...

Страница 48: ...tware Setup Chapter 3 Page 48 Examining Card Configuration Go to Control Panel Start Settings Control Panel and double click on Serial Solutions PCI You will be presented with a Serial Solutions PCI P...

Страница 49: ...tings available in this window are 1 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 n...

Страница 50: ...a Bits 8 Parity None Stop Bits 1 Flow Control Hardware Advanced Port Settings When the Advanced button of Port Settings is selected the following dialogue is displayed Settings available in this windo...

Страница 51: ...d more data bytes per interrupt and will give more time for multi tasking operations Use Extended FIFO Buffers when checked extends the selected ports FIFO buffer from 16 to 64 bytes 2 Automatic Hardw...

Страница 52: ...on resets the advanced properties to the followed settings Use FIFO Buffers On checked Transmit Buffers 1 Receive Buffers 8 Use Extended FIFO Off Unchecked Automatic Hardware Flow Control Off 485 Mode...

Страница 53: ...ytes 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...

Страница 54: ...rminating 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 The AT Dual Port RS422 485 O...

Страница 55: ...uses 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 tw...

Страница 56: ...ut 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 U...

Страница 57: ...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 si...

Страница 58: ...imply listen to it This scheme is used for theatrical lighting intensity control in the DMX512 standard This is shown in Figure 4 2 below For the talker the RS485 TXD GATE jumper should remain in the...

Страница 59: ...o 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...

Страница 60: ...dress 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 car...

Страница 61: ...unconnected not shorted Figure 4 6 RS485 Full Duplex Not e The receiver end of MAIN line terminated in characteristic impedance stubs off the main not terminated Optional Grounding Arrangements Proper...

Страница 62: ...und at one point only by a 100 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 protect...

Страница 63: ...fered 7 8 10 cable 8 15 63 64 65 66 67 Changing COM numbers in Windows 95 32 42 command 7 69 Configuring Ports In Microsoft Windows NT 47 connectors 14 CTS 7 10 63 64 65 66 data word length 10 DCD 7 d...

Страница 64: ...protocol 7 66 receive 13 67 68 69 70 resistor 62 65 67 RS232 6 10 13 RS422 RS485 10 13 36 46 51 62 70 RS422 Pinout 12 RS485 Multiplex Jumper Settings 36 46 51 RTS 7 10 63 64 65 66 68 69 RXD 10 13 63...

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