Description
The ALSTOM I/OBUS2 12004-103-01 VER:V1.2.0 is an I/O Bus Interface Module designed for ALSTOM legacy industrial control architectures. It provides communication and data exchange between the main control processor, backplane system, and distributed I/O modules.
The I/OBUS2 module is used in ALSTOM automation platforms for power generation, turbine control, and industrial process systems. It manages I/O bus communication and ensures reliable transmission of control signals between system components. It is commonly installed in existing ALSTOM control cabinets where long-term maintenance and spare replacement are required.
The module is designed as a rack-mounted interface board rather than a general PLC CPU motherboard. It provides bus-level communication functions within the ALSTOM control system architecture and works together with related modules such as I/OBE2 distributed I/O modules and VPS power/interface boards.
🔹 Product Parameters Datasheet
| Parameter | Specification |
|---|---|
| Brand | ALSTOM |
| Model | I/OBUS2 12004-103-01 |
| Version | V1.2.0 |
| Series | ALSTOM Control System / I/O Bus Series |
| Product Name | I/O Bus Interface Module |
| Origin / Place of Origin | France |
| Product Status | New Surplus / Tested Used / Refurbished Spare |
| Dimensions | Approx. 160 mm × 100 mm × 40 mm |
| Weight | Approx. 0.6 kg |
| Power Requirement | Backplane Power Supply |
| Communication Interface | ALSTOM I/O Bus Interface |
| Discontinued Status | Legacy Product, Available as Industrial Spare |
🔹 Technical Features
🔸 Designed for ALSTOM legacy control rack systems
🔸 Provides communication interface between CPU and distributed I/O modules
🔸 Supports deterministic industrial control data transmission
🔸 Rack-mounted plug-in module design for easy replacement
🔸 Compatible with ALSTOM I/OBUS2 architecture
🔸 Used in turbine, power plant, and industrial automation applications
🔸 Supports reliable operation in long-life control installations
🔸 Provides system-level bus management and I/O synchronization functions
🔹 Common Questions & Answers
Q: What is the main function of I/OBUS2 12004-103-01?
A: The I/OBUS2 module provides the communication interface for ALSTOM control system I/O buses, allowing the processor and distributed I/O modules to exchange control data.
Q: Is this module a CPU motherboard?
A: No. Although some listings describe it as a CPU motherboard, the I/OBUS2 is primarily an I/O bus interface module used for system communication.
Q: Which ALSTOM systems use this module?
A: It is commonly used in ALSTOM legacy automation and turbine control architectures, including systems requiring I/O bus communication modules.
Q: What should be checked before replacement?
A: Verify the exact model number, firmware version, rack position, backplane compatibility, connected I/O modules, and system configuration before installation.
Q: Can I/OBUS2 replace another ALSTOM module directly?
A: Replacement depends on the existing ALSTOM cabinet configuration. The module type, firmware revision, and communication structure must match the original installation.
Q: What are common failure symptoms?
A: Possible issues include I/O communication loss, bus errors, module status alarms, or failure of connected remote I/O communication. Related wiring, power supply, and other rack modules should also be checked.
🔹 Recommended ALSTOM Models
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- POS1846 TRVC062333000 CP00000310 – ALSTOM Position Control Module
- MAVS01L1AB0501D – ALSTOM Control Module
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- UT150-2 LOU – ALSTOM Local Operator Unit Module
