IBM LPCI-COM232-4 - Manual

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

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 ...

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...

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...

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 ...

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 ...

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 ...

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...

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...

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...

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 ...

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