Page 5 - Table of Contents
Table of Contents Chapter 1: Introduction ................................................................................................. 6 Specifications ............................................................................................................ 8 Figure 1-1: Block Diagram (Only ...
Page 6 - Chapter 1: Introduction; RS422 Balanced Mode Operation
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, a...
Page 8 - Specifications; Communications Interface
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...
Page 9 - Block Diagram (Only one serial channel shown)
PC I B U S VH D C I 6 8 PI N C O N N EC T O R WIT H AUTO- RT S CIRCUIT RY Figure 1-1: Block Diagram (Only one serial channel shown) Manual LPCI-COM-8SM 9
Page 10 - Chapter 2: Installation
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 ...
Page 11 - Hardware Installation
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 s...
Page 12 - Chapter 3: Option Selection; Terminations
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...
Page 13 - Data Cable Wiring; RS-485 SignalPin Connection; Baud Rate Ranges
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 ...
Page 16 - Chapter 4: Address Selection
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 ...
Page 17 - Chapter 5: Programming; Sample Programs; Windows Programming
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 ...
Page 19 - Chapter 6: Connector Pin Assignments; Input/Output Connections
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 t...
Page 20 - Appendix A: Application Considerations; Introduction; Balanced Differential Signals
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 th...
Page 22 - RS485 Data Transmission; RS485 Four-Wire Multidrop Network
RS485 Data Transmission The RS485 Standard allows a balanced transmission line to be shared in a party-line mode. As many as 32 driver/receiver pairs can share a two-wire party line network. Many characteristics of the drivers and receivers are the same as in the RS422 Standard. One difference is th...
Page 23 - Appendix B: HVDCI D-Connector Pinout Reference
Appendix B: HVDCI D-Connector Pinout Reference Connections will normally be made to the 9-pin connectors through the breakout cable. In case you wish to connect directly to the 68-pin connector, the pins translate as follows. DB-9 Pin Ch A pins on 68-pin Ch B Pins on 68-Pin Ch C Pins on 68-Pin Ch D ...
Page 24 - Customer Comments
Customer Comments If you experience any problems with this manual or just want to give us some feedback, please email us at: [email protected]. Please detail any errors you find and include your mailing address so that we can send you any manual updates. 10623 Roselle Street, San Diego CA 92121 Te...