Description
The WOODHEAD APP-ETH-PCU, also identified as PCU2000ETH and 1120000005, is an applicom® Ethernet network interface card for industrial PCs. It provides a single-channel 10/100 Mbps Ethernet connection through a Universal PCI 3.3 V/5 V bus and is intended for SCADA, HMI, and industrial communication applications.
This card uses an onboard AMD SC520 processor to handle communication tasks and provides an RJ45 Ethernet interface. It is designed for legacy industrial PCs that require Ethernet connectivity for automation networks and supervisory applications.
🔧 Key Features
• WOODHEAD applicom® PCU2000ETH Ethernet card
• Engineering number: APP-ETH-PCU
• 1-channel Ethernet interface
• 10/100 Mbps Ethernet communication
• Universal PCI 3.3 V / 5 V interface
• RJ45 network connection
• AMD SC520 onboard processor
• Suitable for SCADA and HMI systems
• OPC, DDE, DLL and DAS interface support
• Designed for legacy industrial PC applications
📋 Product Datasheet
• Brand: WOODHEAD / Molex
• Model: PCU2000ETH
• Part Number: APP-ETH-PCU
• Molex Part Number: 1120000005
• Product Type: Ethernet Network Interface Card
• Communication: Ethernet TCP/IP
• Ethernet Speed: 10/100 Mbps
• Channels: 1
• Network Connector: RJ45
• Bus Interface: Universal PCI 3.3 V / 5 V
• Processor: AMD SC520
• Operating System: Windows Vista, Windows 7, Windows 8/8.1, Windows Server 2003/2008/2012*
• Software Interfaces: OPC DA / DDE / DLL / DAServer
• Maximum Input Power: 5.5 W
• Supply Voltage: 3.3 V / 5 V
• Operating Temperature: 0 to +65 °C
• Net Weight: Approx. 140 g
• Dimensions: PCI standard board format*
• Mounting: Universal PCI slot
• Country of Origin: Production-location dependent
The manufacturer’s catalog data lists 1 channel, RJ45 Ethernet, 10/100 Mbps communication, AMD SC520 processor, 3.3/5 V PCI supply, 5.5 W maximum input power, 0–65 °C operating temperature, and 140 g net weight.
🏭 Typical Applications
The PCU2000ETH is suitable for:
• Industrial PC systems
• SCADA workstations
• HMI computers
• PLC communication
• Factory automation networks
• Process control systems
• Legacy automation upgrades
• Industrial data acquisition
⚡ Functional Description
The APP-ETH-PCU operates as an intelligent Ethernet interface between an industrial computer and connected automation equipment. The host PC communicates with the card through the PCI bus, while the card provides Ethernet TCP/IP connectivity through its RJ45 port.
The applicom architecture supports software interfaces including OPC DA, DDE, DLL, and DAServer, allowing the card to be integrated into PC-based supervisory and data-collection systems.
🖥️ Installation & Configuration
Basic installation procedure:
• Shut down the industrial PC and disconnect power
• Confirm the computer has a compatible Universal PCI slot
• Install the APP-ETH-PCU card securely
• Connect the Ethernet cable to the RJ45 port
• Install the compatible applicom software and driver
• Configure the Ethernet communication parameters
• Verify the network link
• Test communication with the PLC or automation device
⚠️ Compatibility Note
The PCU2000ETH is an older PCI-based product. Driver and BIOS compatibility should be checked carefully when installing it in a replacement computer. Some hardware revisions use different memory configurations and BIOS versions, so the exact card revision should be matched when replacing an existing unit.
🛠️ Commissioning Checklist
• Verify APP-ETH-PCU / PCU2000ETH identification
• Confirm Universal PCI compatibility
• Check card recognition by the operating system
• Install the correct driver
• Verify Ethernet link status
• Configure IP/network parameters
• Test TCP/IP communication
• Verify SCADA/HMI data exchange
• Check OPC/DLL/DAS communication if required
📦 Ordering Information
WOODHEAD APP-ETH-PCU | PCU2000ETH | 1120000005 | Ethernet TCP/IP Network Interface Card | Universal PCI 3.3/5 V
The manufacturer documentation identifies APP-ETH-PCU-C / 1120000005 as the applicom PCU2000ETH Ethernet card with one 10/100 Mbps Ethernet channel and Universal PCI 3.3/5 V interface.



