Page 3 - EUROPEAN UNION DECLARATION OF CONFORMITY
2 2-PORT RS-232/422/485 PCI HOST ADAPTER EUROPEAN UNION DECLARATION OF CONFORMITY Products bearing the CE Label fulfill the requirements of the EMC directive(89/336/EEC) and of the low-voltage directive (73/23/EEC) issued by theEuropean Commission. To obey these directives, the following European st...
Page 5 - TRADEMARKS
4 2-PORT RS-232/422/485 PCI HOST ADAPTER 12. Precaución debe ser tomada de tal manera que la tierra fisica y la polarización del equipo no sea eliminada. 13. Los cables de la fuente de poder deben ser guiados de tal manera que no sean pisados ni pellizcados por objetos colocados sobre o contra ellos...
Page 6 - TABLE OF CONTENTS; CONTENTS
5 TABLE OF CONTENTS CONTENTS 1. Specifications............................................................................................7 2. Introduction .............................................................................................8 2.1 Overview .......................................
Page 8 - CHAPTER 1: Specificatiobns
7 CHAPTER 1: Specificatiobns 1. Specifications Communication Chip — IC133C-R2: 16550 UART (optionally, you can remove this UART and install a 16950 UART for better performance);IC187C: 16950 UART Data Rate — IC133C-R2: Up to 460.8 kbps; IC187C: 460.8 kbps and above Distance — Up to 4000 ft. (1219.2 ...
Page 10 - Electrical Specification
9 CHAPTER2: Introduction 2.3 Factory Default Settings The Adapter’s factory-default settings are as follows: Table 2-1. Factor y-Default Settings Port # Electrical Specification Port 1 RS-232 Port 2 RS-232 For your reference, record installed Adapter settings below. Table 2-2. Installed Adapter Sett...
Page 11 - NOTE
10 2-PORT RS-232/422/485 PCI HOST ADAPTER 3. Card Setup NOTE I n a l l c a s e s J 1 x r e f e r s t o s e t t i n g s f o r t h e f i r s t p o r t a n d J 2 x r e f e r to settings for the second port. 3.1 RS-485 Enable Modes RS-485 is ideal for multidrop or network environments. RS-485 requires a...
Page 12 - CHAPTER 3: Card Setup
11 CHAPTER 3: Card Setup Examples on the following pages describe all of the valid settings for J1B and J2B. Interface Mode Examples J1D – J4D Figure 3-1. Headers J1B and J2B set for RS-422. Figure 3-2. Headers J1B and J2B set for RS-485 “Auto” with “No Echo.” Figure 3-3. Headers J1B and J2B set for...
Page 13 - Address and IRQ selection; AT
12 2-PORT RS-232/422/485 PCI HOST ADAPTER Figure 3-4. Headers J1B and J2B set for RS-485 “RTS” with “No Echo.” Figure 3-5. Headers J1B and J2B set for RS-485 “RTS” with “Echo.” 3.2 Address and IRQ selection The Adapter is automatically assigned I/O addresses and IRQs by yourmotherboard BIOS. Only th...
Page 14 - Name
13 CHAPTER 3: Card Setup Table 3-1. Jumper Operation Name Function P Adds or removes the 1K-ohm pull-down resistor in the RS-422/RS-485 receiver circuit (Receive data only). T Adds or removes the 120-ohm termination. L Connects the TX+ to RX+ for RS-485 two-wire operation. L Connects the TX- to RX- ...
Page 15 - Electrical Interface Selection
14 2-PORT RS-232/422/485 PCI HOST ADAPTER 3.4 Electrical Interface Selection Each port on the Adapter has the ability to be used in either RS-232 or RS-422/485 mode. This is selectable via four 24 pin DIP-shunts at E1-E4. Please use the following illustration to aid in the configuration of your elec...
Page 17 - Baud Rates and Divisors for the “Div1” Mode; Table 3-2. Baud Rates for the “Div 1” Mode; For this Data Rate
16 2-PORT RS-232/422/485 PCI HOST ADAPTER To enable the Adapter to reach its maximum possible data rate, 460.8 Kbps, place the jumper in the “divide by 1” position (marked DIV1). Figure 3-10. Clocking mode “divide by 1.” 3.6 Baud Rates and Divisors for the “Div1” Mode The following table shows some ...
Page 19 - Baud Rates and Divisors for the “Div2” mode; Table 3-4. Baud Rates for the “Div 2” Mode
18 2-PORT RS-232/422/485 PCI HOST ADAPTER 3.7 Baud Rates and Divisors for the “Div2” mode The following table shows some common data rates and the rates you shouldchoose to match them if you’re using the adapter in the “Div2” mode. Table 3-4. Baud Rates for the “Div 2” Mode For this Data Rate Choose...
Page 21 - IMPORTANT; Setting Up the Operating System; setup; Programs
20 2-PORT RS-232/422/485 PCI HOST ADAPTER 4. Installation IMPORTANT You MUST set up the operating system BEFORE you physically installthe Card. 4.1 Setting Up the Operating System If you are installing the PCI adapter in DOS, OS/2 ® , or QNX, please refer to the appropriate directory on one of the S...
Page 22 - CHAPTER 4: Installation; NT; Installing the Hardware; Chapter 3
21 CHAPTER 4: Installation 5. Next, double-click on the third I/O range. Highlight the entire I/O range and type 02e8–02ef for COM4. Again, Windows will inform you that you have made modifications that may affect other devices. Click OK. Following these steps will change the COM: number assignments ...
Page 23 - The Serial Utility Diskette
22 2-PORT RS-232/422/485 PCI HOST ADAPTER 5. Troubleshooting 5.1 The Serial Utility Diskette The Adapter comes with a Serial Utility Diskette that has diagnostic software on it.We recommend that you always use this software first when you troubleshootproblems, because it can help resolve most common...
Page 24 - Shipping and Packaging
23 CHAPTER 5: Troubleshooting 5.2 Calling Black Box If you determine that the Adapter is malfunctioning, do not attempt to alter or repair it . It contains no user-serviceable parts. Contact Black Box Technical Support at 724-746-5500. Before you do, make a record of the history of the problem. We w...
Page 25 - Appendix A: Interrupt Handling; A.1 The Purpose and Early History of Interrupts
24 2-PORT RS-232/422/485 PCI HOST ADAPTER Appendix A: Interrupt Handling A.1 The Purpose and Early History of Interrupts A good analogy of a PC interrupt would be the phone ringing. The phone “bell” isa request for us to stop what we are currently doing and take up another task(speak to the person o...
Page 26 - APPENDIX A: Interrupt Handling
25 APPENDIX A: Interrupt Handling A.2 Why Use an Interrupt Status Port (ISP)? The answer to the polling inefficiency was the Interrupt Status Port (ISP). The ISPis a read-only 8-bit register that sets a corresponding bit when an interrupt ispending. Port 1’s interrupt line corresponds with bit D0 of...
Page 27 - Appendix B: Connector Pinouts; Abbreviation
26 2-PORT RS-232/422/485 PCI HOST ADAPTER Appendix B: Connector Pinouts B.1 RS-232 Table B-1. Pinout of Connector Set to RS-232 Abbreviation Name Pin # Mode TD Transmit Data 3 Output RTS Request To Send 7 Output DTR Data Term Ready 4 Output GND Ground 5 RD Receive Data 2 Input DCD Data Carrier Detec...
Page 28 - APPENDIX B: Connector Pinouts
27 APPENDIX B: Connector Pinouts B.2 RS-422/485 Table A-2. Pinout of Connector Set to RS-422/485 Abbreviation Name Pin # Mode GND Ground 5 TX + Transmit Data Positive 4 Output TX- Transmit Data Negative 3 Output RTS+ Request To Send Positive 6 Output RTS- Request To Send Negative 7 Output RX+ Receiv...
Page 29 - Appendix C: Electrical Interfaces
28 2-PORT RS-232/422/485 PCI HOST ADAPTER Appendix C: Electrical Interfaces C.1 RS-232 Quite possibly the most widely used communication standard is RS-232. Thisimplementation has been defined and revised several times and is often referred to as EIA/TIA-232. The IBM PC/AT computer defined the RS-23...
Page 30 - APPENDIX C: Asynchronous Communications
29 APPENDIX C: Asynchronous Communications C.3 RS-485 RS-485 is backward-compatible with RS-422; however, it is optimized for partylineor multidrop applications. The output of the RS-422/485 driver is capable of beingActive (enabled) or Tristate (disabled). This capability allows multiple ports to b...
Page 31 - Asynchronous Communication
30 2-PORT RS-232/422/485 PCI HOST ADAPTER Appendix D: Asynchronous Communication In serial data communication, individual bits of a character are transmittedconsecutively to a receiver that assembles the bits back into a character. Data rate,error checking, handshaking, and character framing (start/...
Page 32 - APPENDIX D: Asynchronous Communication
31 APPENDIX D: Asynchronous Communication Because each bit in asynchronous communications is sent consecutively, it is easyto generalize asynchronous communications by stating that each character iswrapped (framed) by pre-defined bits to mark the beginning and end of the serialtransmission of the ch...
Page 33 - Appendix E: Board Layout
32 2-PORT RS-232/422/485 PCI HOST ADAPTER Appendix E: Board Layout Figure E-1. Board layout. GD75232 U1 GD75232 U2 75175 U4 E5 C1 C3 R4 R5 R8 R9 R3 R5 R7 C4 U5 U6 C6 J1 C7 R27 R28 C8 C9 U7 C10 R29 R30 C12 C11 93CS46 R1 C13 C14 C15 C16 C17 J2C Y1 R8 U8 P1 PCI9050 XC9536-7201 7201 + MADE IN USA DIV1 D...
Page 34 - NOTES
Page 36 - © Copyright 2000. Black Box Corporation. All rights reserved.
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