SST SST-PB3-PCU-2 | Dual-Channel PROFIBUS DP PCI Interface Card

Description

Product Overview

The SST-PB3-PCU-2 is a dual-channel PROFIBUS DP interface card from SST, a Woodhead/Molex industrial networking product family. It is designed for installation in a universal PCI slot and provides two independent PROFIBUS channels for master or slave communication. The card supports PROFIBUS DPV0 Master, DPV0 Slave, and DPV1 Master operation, with communication speeds from 9.6 kbps through 12 Mbps. It was developed for industrial control, data acquisition, and PC-based automation systems where deterministic PROFIBUS connectivity is required. Molex documentation identifies the engineering number as 1120110022 and specifies 3.3/5 V PCI compatibility. The card is now a legacy/discontinued product, so operating-system, driver, and host-PC compatibility should be checked before deployment.

Technical Specifications — SST-PB3-PCU-2

The manufacturer documentation specifies two channels, universal 3.3/5 V PCI operation, 9.6 kbps to 12 Mbps communication, a 9-pin female D-Sub interface, and a 140 g net weight.

SST SST-PB3-PCU-2

Key Features and Benefits — SST-PB3-PCU-2

• Dual independent PROFIBUS DP channels.
• Supports both master and slave operating modes.
• PROFIBUS DPV1 master functionality for supported applications.
• Compatible with universal 3.3 V and 5 V PCI systems.
• Communication speeds up to 12 Mbps.
• DLL, CommDTM, and OPC DA interfaces for PC-based automation software.
• Suitable for control, data acquisition, and industrial networking applications.
• Compact PCI architecture for legacy industrial computers.

A practical advantage of the two-channel design is that one PC can manage multiple PROFIBUS networks without requiring two separate computers. For legacy systems, though, the host operating system and SST driver package deserve as much attention as the hardware itself.

Related Models

SST-PB3-PCU — Single-channel version of the same universal PCI PROFIBUS card family, using the same general PB3 architecture.

SST-PB3-PCIE-2 — Dual-channel PROFIBUS DP interface card using PCI Express rather than conventional PCI, making it more suitable for newer industrial PCs.

SST-PB3-PCIE-1 — Single-channel PCI Express version for applications requiring one PROFIBUS network connection.

Installation and Maintenance — SST-PB3-PCU-2

Before installation, confirm that the host computer provides a compatible universal PCI slot and that the required SST/Molex drivers support the installed operating system. Record the existing PROFIBUS configuration, station addresses, baud rate, and application settings before replacing the interface card.

Use ESD precautions when handling the PCB. After installation, verify both channel diagnostics, PROFIBUS bus communication, station discovery, and application-level data exchange. Check termination and cabling separately if communication errors remain after the card replacement.

Because this is a legacy PCI interface, I would verify the exact host-PC motherboard and driver environment before purchasing a spare. The product is currently listed as discontinued by at least one major distributor.

Product Warranty — SST-PB3-PCU-2

Warranty coverage depends on the supplier and whether the card is new, refurbished, or used. Procurement records should identify the complete part number, engineering number 1120110022, hardware condition, connector condition, test status, and warranty period.

The SST SST-PB3-PCU-2 remains a useful spare for legacy PROFIBUS-based PC control systems where two-channel PCI connectivity is required, provided the host hardware and software environment are verified before installation.