B&B 3PCIU2 User Manual

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Document Number 3PCI-0712m

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Table of Contents

Questions and Answers:

J
Jennifer SteeleJul 31, 2025
How to set up B&B PCI Card for RS-232/422/485 operation?
- S
  Sarah DeleonJul 31, 2025
  To ensure correct operation, configure your B&B PCI Card for the appropriate mode (RS232, RS-422, or RS-485 2-wire or 4-wire). Use the DIP switches on the card and the Advanced Port Settings to make these adjustments.
A
Audrey PerezAug 5, 2025
What to do if I have hardware handshaking issues with my B&B 3PCIU2?
- S
  Sonya SmithAug 5, 2025
  If hardware handshaking is necessary, verify that you are using the correct cables. Also, confirm that both ends of your connection are configured identically for handshaking.
S
Sarah MercadoAug 9, 2025
Why is my system having trouble starting after installing the B&B 3PCIU2?
- J
  John CooperAug 10, 2025
  Power down your computer, then remove and re-insert the B&B PCI Card. You might also try a different slot. Ensure that your system is configured for PnP OS.
M
mooneymichelleAug 15, 2025
What to check if there is a mismatch in RS-422 or RS-485 pinouts on B&B PCI Card?
- L
  laura02Aug 15, 2025
  Verify your pinouts. In RS-422 or RS-485 mode, the 'A' lines should correspond with your 'A' or '-' lines, and 'B' lines should correspond with your 'B' or '+' lines.
R
Robin BerryAug 19, 2025
What to do if there is no response from devices in RS-485 mode with B&B 3PCIU2 PCI Card?

B&B 3PCIU2 Specifications

General

Brand	B&B
Model	3PCIU2
Category	PCI Card
Language	English

Summary

Chapter 2: Serial Card Setup

Setting DIP Switches for RS-232/422/485 Ports

Detailed instructions on configuring DIP switches for RS-232, RS-422, and RS-485 operation modes.

Installing the Serial Card

Step-by-step instructions for physically installing the MIport PCI serial card into a computer.

Chapter 3: Driver Software Installation

Installing Drivers on Windows 7 and XP

Procedures for installing MIport drivers on Windows 7 and Windows XP systems.

Driver Installation Process and Verification

Covers pre-installation, wizard usage, card/port installation, and checking driver status.

Chapter 4: Setting Driver Options

Configuring Port Settings

Advanced Port Configuration

Changing COM Port Name/Number

Chapter 5: Installing Linux Driver Software

Installing MIport Driver on Ubuntu 10.04

Step-by-step guide for installing the MIport driver on Ubuntu 10.04 Desktop and Server editions.

Chapter 6: Removing Drivers, Ports and Cards

Uninstalling MIport Card and Drivers

Chapter 8: RS-422/485 Connections/Operation

RS-485 Termination and Biasing

RS-422 and RS-485 Wiring

Chapter 9: Troubleshooting Mlport Cards

Troubleshooting Procedures

Covers starting up, connection checks, RS-232/422/485 operation, and testing with ComTest.

Appendix A: DIP Switch/Mode Settings

DIP Switch Configuration

Appendix B: CONNECTOR PINOUTS

RS-232 and RS-422/485 Pinouts