DSQC662 ABB Bailey Analog Input Module
Brand：ABB Model number：DSQC662
Country of origin: Sweden Product weight：0.55KG
HS code：8517623990
Product Details：
Product Dimensions：
The 37262-4-0369565 serves as a bridge for the 10Base2 Fieldbus (often referred to as Thinwire or CheaperNet Ethernet). It is designed to be housed within the standard ABB Bailey rack system, providing the physical layer connectivity required for industrial Ethernet communication. Its primary role is to manage the flow of real-time process data, alarms, and configuration commands across the control network. As part of the legacy Freelance 2000 series, it represents a critical hardware component for maintaining and upgrading existing DCS installations that rely on coaxial Ethernet physical media.
Product Type: Ethernet Communication Module / Fieldbus Interface
Model Designation: 37262-4-0369565
Network Standard: IEEE 802.3 10Base2 (CheaperNet)
Communication Speed: $10 \text{ Mbps}$
Physical Interface: BNC connector for coaxial cable connection
System Compatibility: Compatible with ABB Freelance 2000 and AC800F controller families
Power Requirements: Supplied via the system backplane
Isolation: Built-in galvanic isolation to protect the controller from network-borne electrical noise
Mounting: Rack-mounted or DIN rail integrated depending on the specific chassis configuration
Deterministic Communication: Provides stable and predictable data transmission, which is vital for time-critical industrial control applications.
Robust Hardware Design: Built to withstand the harsh electrical and environmental conditions typical of industrial plants, including electromagnetic interference (EMI).
Extended Life Support: Allows legacy systems to maintain connectivity without requiring a full-scale network infrastructure overhaul to fiber optics or Twisted Pair (CAT5/6) immediately.
Hot-Swappable Capability: In many configurations, these modules can be replaced without shutting down the entire rack, minimizing downtime during maintenance.
Simplified Integration: Seamlessly integrates with ABB's engineering software tools for configuration and diagnostics, reducing the complexity of network management.
Obsolescence Management: As 10Base2 technology is largely replaced by 10/100/1000Base-T (Twisted Pair), availability of these modules is primarily through spare parts channels or refurbished stock.
Network Termination: Proper termination is critical for 10Base2 networks. Ensure that $50\Omega$ BNC terminators are used at both ends of the segment to prevent signal reflections and data loss.
Segment Length Limits: Adhere strictly to the maximum segment length of $185 \text{ meters}$ for 10Base2 cabling to avoid signal degradation.
Handling Precautions: Use standard ESD (Electrostatic Discharge) procedures when handling the module to prevent damage to the internal CMOS components.
Firmware Versioning: Ensure the module firmware is compatible with the version of the Freelance software or AC800F controller being used.
The 37262-4-0369565 is predominantly found in large-scale industrial sectors where ABB Bailey systems have long been the standard.
Power Generation: Used in coal, gas, and nuclear power plants for interconnecting boiler and turbine control systems.
Chemical and Petrochemical: Facilitating data exchange between remote I/O stations and central control rooms in refineries and processing plants.
Water and Wastewater: Managing communication across distributed pumping stations and treatment facilities.
Pulp and Paper: Enabling real-time monitoring of high-speed paper machines and chemical recovery boilers.
Metals and Mining: Providing the networking backbone for smelting operations and material handling controls.
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