Technical Features

1. Integrated galvanized metal housing with vibration resistance and electromagnetic interference immunity, suitable for complex industrial electromagnetic environments.
2. Built-in MasterBus backplane bus supporting hot swapping of various functional boards without system shutdown during replacement.
3. Multiple internal DC power distribution circuits supply stable 24V DC power to all modules in slots uniformly.
4. Standardized cutout design enables two installation modes: wall-mounted in control cabinets and embedded installation in standard racks.
5. The insulation withstand voltage between channels and the rack reaches 2kV RMS, and the isolation voltage between I/O circuits and power supply is 2.5kV, eliminating risks of signal crosstalk and electric leakage.
6. Operating ambient temperature ranges from -20℃ to +60℃ with IP20 protection rating; it is only applicable for indoor control cabinet deployment.
7. Certified with CE, UL and RoHS industrial compliance standards, meeting access requirements for mainstream industrial projects worldwide.

Model Decoding

1. DSRF: General product category code, denoting MasterPiece series CPU and I/O racks.
2. 180: Standard rack width specification, corresponding to a horizontal mounting dimension of 180mm and defining the total slot capacity.
3. A: Hardware version identifier, representing the first-generation standard backplane bus layout compatible with MasterPiece200 system boards.
4. 57310255: Global unified material part number for inventory lookup.

5. AV: Suffix configuration code, indicating a standard bare rack fully assembled with backplane and without matching power supply modules.

Product Characteristics

1. Modular expandability: Multiple standard slots are reserved inside the rack, allowing flexible combination of CPU, I/O and communication boards. The system capacity can be expanded freely according to project control points.
2. High-reliability bus transmission: The backplane integrates a dedicated parallel control bus for latency-free data exchange between boards, delivering millisecond-level response required for process control.
3. Lightweight yet robust construction: The unit weighs approximately 7kg, fabricated via integral stamping of galvanized steel sheets to resist deformation and cracking during long-term operation.
4. User-friendly maintenance design: The open-front slot structure allows individual faulty boards to be pulled out without disassembling the entire rack, minimizing equipment downtime for maintenance.
5. Universal compatibility: All slots adopt a unified bus protocol with no dedicated restricted slots; any functional board can be relocated to any slot freely.
6. Low-power-loss power supply design: Thickened copper busbars are adopted for internal power circuits to reduce voltage drop. Voltage fluctuation shall not exceed ±0.5V when multiple modules operate under full load.

Application Fields

1. Thermal Power Industry: Core mounting rack for DCS logic control cabinets of steam turbines and boiler auxiliary equipment.
2. Petrochemical Industry: Process signal acquisition and control systems for distillation units, reaction kettles and transmission pipelines.
3. Papermaking Industry: Sequential logic control cabinets for pulping, drying and paper winding units.
4. Water Treatment Industry: Automatic monitoring systems for large-scale sewage and water purification plants.
5. Metallurgical Industry: Spare parts replacement for legacy MasterPiece control systems of heating furnaces and steel rolling production lines.
6. Building Materials Industry: Distributed control equipment for cement kilns and crushing production lines.

Product Comparison

1. DSRF140A: Compact small-size rack with fewer slots. It is designed for control cabinets of small standalone equipment and features low load capacity, supporting no more than 4 functional boards. It is widely applied in small water treatment facilities and miniature boilers.
2. DSRF180A (This Product): Standard medium-sized rack with a moderate number of slots and balanced power supply load capacity. It allows mixed installation of CPU, multi-channel I/O and communication boards, and fits medium-sized control systems for most process industries, boasting the broadest market application coverage.
3. DSRF220A: Large expandable rack with the maximum number of slots. Equipped with thickened power busbars, it delivers the strongest full-load bearing capacity. It matches complex multi-point control systems for large thermal power and chemical plants, yet occupies larger cabinet space.

Matching Supporting Products

1. Core Control Boards (Mandatory Matching)

2. I/O Signal Boards

3. Communication Interface Boards

4. Auxiliary Supporting Accessories

Recommended Product Models of the Same Brand

1. DSRF140A Compact I/O Rack
2. DSRF220A High-Capacity Expandable Rack
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12. DSHM301 Front Panel Bus Interface Module
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15. DSCA180A RCOM Communication Board