Instrukcja obsługi IBM Serial Interface Card LPCI-COM232-4

Instrukcja obsługi dla urządzenia IBM Serial Interface Card LPCI-COM232-4

Urządzenie: IBM Serial Interface Card LPCI-COM232-4
Kategoria: Karta sieciowa
Producent: IBM
Rozmiar: 0.23 MB
Data dodania: 3/25/2014
Liczba stron: 24
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IBM Serial Interface Card LPCI-COM232-4 Instrukcja obsługi - Online PDF
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Streszczenie treści zawartej na stronie nr. 1



10623 Roselle Street, San Diego, CA 92121 • (858) 550-9559 • FAX (858) 550-7322
contactus@accesio.com • www.accesio.com











MODEL LPCI-COM-8SM
LPCI-COM-4SM
LPCI-COM232-8
LPCI-COM232-4

USER MANUAL

















FILE: MLPCI-COM-8SM.B1f

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Manual LPCI-COM-8SM 2

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Notice The information in this document is provided for reference only. ACCES does not assume any liability arising out of the application or use of the information or products described herein. This document may contain or reference information and products protected by copyrights or patents and does not convey any license under the patent rights of ACCES, nor the rights of others. IBM PC, PC/XT, and PC/AT are registered trademarks of the International

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Warranty Prior to shipment, ACCES equipment is thoroughly inspected and tested to applicable specifications. However, should equipment failure occur, ACCES assures its customers that prompt service and support will be available. All equipment originally manufactured by ACCES which is found to be defective will be repaired or replaced subject to the following considerations. Terms and Conditions If a unit is suspected of failure, contact ACCES' Customer Service department. Be prepared t

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Table of Contents Chapter 1: Introduction................................................................................................. 6 Specifications ............................................................................................................ 8 Figure 1-1: Block Diagram (Only one serial channel shown) .................................. 9 Chapter 2: Installation................................................................................................. 10 Chapter 3

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Chapter 1: Introduction This serial interface card was designed for effective multipoint transmission in any one of three modes on each channel. These modes are RS232, RS422 and RS485 (EIA485) protocol. The RS485 mode may be run in three manners. It may be run as a standard RTS controlled channel, an “Auto RTS (referred to by some as Auto RS485)” mode or as a “4 wire RS485 mode channel. The card is 6.60 inches long and may be installed in 3.3 or 5-volt PCI-bus slots of IBM PC or compat

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Communication Mode The card supports Half-Duplex communications with a 2-wire cable connection. Half-Duplex allows traffic to travel in both directions, but only one way at a time. RS485 communications commonly use the Half- Duplex mode since they share only a single pair of wires. Baud Rate Ranges The card has capability for two baud rate ranges and you can select which you wish to use for all ports on the card. One range is up to 115,200 baud and the other is up to 921,600 baud.

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Specifications Communications Interface • I/O Connection: 68 Pin HVDCI SCSI style -Connector • Serial Ports: Eight cable terminated shielded male D-sub 9-pin connectors with standard IBM AT connectors compatible with RS485 specifications • Character length: 5, 6, 7, or 8 bits. • Parity: Even, odd or none. • Stop Interval: 1, 1.5, or 2 bits. • Serial Data Rates: Up to 115,200 baud, Asynchronous, A faster range of rates, up to 921,600, is achieved by jumper selection on th

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WITH AUTO-RTS CIRCUITRY Figure 1-1: Block Diagram (Only one serial channel shown) Manual LPCI-COM-8SM 9 PCI BUS VHDCI 68 PIN CONNECTOR

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Chapter 2: Installation A printed Quick-Start Guide (QSG) is packed with the card for your convenience. If you’ve already performed the steps from the QSG, you may find this chapter to be redundant and may skip forward to begin developing your application. The software provided with this card is on CD and must be installed onto your hard disk prior to use. To do this, perform the following steps as appropriate for your operating system. Configure Card Options via Jumper Selection

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Hardware Installation 1. Make sure to set switches and jumpers from either the Option Selection section of this manual or from the suggestions of SETUP.EXE. 2. Do not install card into the computer until the software has been fully installed. 3. Turn OFF computer power AND unplug AC power from the system. 4. Remove the computer cover. 5. Carefully install the card in an available 5V or 3.3V PCI expansion slot (you may need to remove a backplate first). 6. Inspect for proper fit of the

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Chapter 3: Option Selection To help you locate the jumpers described in this section, refer to the Option Selection Map at the end of this section. Operation of the serial communications section is determined by jumper installation as described in the following paragraphs. For the convenience of the user, instructions for the placement of the jumpers is also silk screened on the back of the card. Terminations A transmission line should be terminated at the receiving end in its c

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Data Cable Wiring RS-485 SignalPin Connection Ain/out+ 2 Ain/out- 3 100 Ω to Ground 5 Baud Rate Ranges The jumper labeled CLK X8 provides a means to select baud rates in a higher range. When a jumper is not placed on the out the CLK X8 position, the baud rate range is up to 115,200 baud. When it is in the CLK X8 position, the baud rate range is up to 921,600 baud. Interrupts Please note that, in WindowsNT, changes must be made to the system registry to support IRQ sharing

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6.60" H G F PORT CONFIG BAUD x8 E PORT H D CONFIG D G C C F B B A E A Figure 3-2: Option Selection Map The card has 8 separate channels which can be individually configured. Each channel can be used in: 1) RS485 (2 wire mode) - This mode may use “Auto RTS” 2) RS422 3) RS232 4) RS485 (4 wire mode) The jumpers on the card must be properly placed in order to have the card function properly. In order to select the basic mode for a channel, the M1 and M2 jumpers be proper

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Other jumpers: 1) RS 485 (2 wire mode) - Two jumpers must be installed for each channel in this mode in order to connect the output and input lines. These jumpers are located near the cable connector and are labeled with the channel letter and “485.” 2) RS 485 (2 wire mode) using “Auto RTS” - One jumper must be installed for each channel in this mode. This jumper is located at the end of the card away from the cable connector, adjacent to the “M” jumpers and are labeled with the channel le

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Chapter 4: Address Selection The card uses one address space. COM A, COM B, COM C, COM D, COM E, COM F, COM G and COM H each occupy eight consecutive register locations. The interrupt register which indicates which port or ports caused the interrupt is located at base address + 64. PCI architecture is Plug-and-Play. This means that the BIOS or Operating System determines the resources assigned to PCI cards rather than you selecting those resources with switches or jumpers. As a resul

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Chapter 5: Programming Sample Programs There are sample programs provided with the card in C, Pascal, QuickBASIC, and several Windows languages. DOS samples are located in the DOS directory and Windows samples are located in the WIN32 directory. Windows Programming The card installs into Windows as COM ports. Thus the Windows standard API functions can be used. In particular: ►CreateFile() and CloseHandle() for opening and closing a port. ►SetupComm(), SetCommTimeouts(), GetCommS

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Address Map The core of the UART function is supplied by the EXAR XR16L788 chip. This chip is 16550 and 16750 compatible, but has extra features that require communicating with an additional 8 registers per channel. For instance, it is necessary to set the “Auto RTS” function. (EXAR refers to this function as “Auto RS485" in their literature). The required writing to the UART is done automatically when the card is rebooted. In order to utilize standard software that communicates on

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Chapter 6: Connector Pin Assignments Input/Output Connections The card’s Serial Communications card uses eight individual 9-pin connectors, provided via a spider cable from a 68-pin HVDCI D-connector. To ensure that there is minimum susceptibility to EMI and minimum radiation, it is important that the card mounting bracket be properly screwed into place and that there be a positive chassis ground. Also, proper EMI cabling techniques (cable connect to chassis ground at the aperture, s

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Appendix A: Application Considerations Introduction Working with RS422 and RS485 devices is not much different from working with standard RS232 serial devices and these two standards overcome deficiencies in the RS232 standard. First, the cable length between two RS232 devices must be short; less than 50 feet at 9600 baud. Second, many RS232 errors are the result of noise induced on the cables. The RS422 standard permits cable lengths up to 5000 feet and, because it operates in the diff


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