1. Basic Product Information

2. Electrical & Mechanical Specifications

• Input Power: AC auxiliary input + rack primary backplane input; converts to stabilized multi-channel DC outputs: +5VDC, +12VDC, -12VDC for all peripheral interface cards inside MMI rack

• Rated Power Output: Total continuous output power: 18.6W; independent current limit for each voltage rail

• Physical Dimension: Standard Eurocard plug-in PCB: 236mm × 165mm × 29mm, net weight: 1.42kg

• Environmental Rating: Continuous operating temperature: 0℃ ~ +55℃ inside sealed control cabinet; storage temperature: -40℃ ~ +85℃; full PCB three-proof conformal coating, shock-resistant wave soldering; certified compliant with UL safety & CE industrial EMC standards for power plant automation equipment

3. Core Functional Features

1. Multi-rail Stabilized Power Distribution: Central power source for video driver board, serial communication board, keyboard/mouse interface card within WEStation rack; converts unregulated backplane power into precision DC power for all slot-mounted auxiliary cards.

2. Multi-stage Hardware Protection: Built-in independent overvoltage, overcurrent, short-circuit fuse & thermal cutoff protection per output channel; cuts off faulty channel power automatically to avoid cascaded burnout of adjacent plug-in modules from power failure.

3. Front-panel Status Diagnostics: LED indicators for main input power, each DC output status, overheat alarm; fault codes transmitted via WESTBUS backplane to upper DPU for centralized system fault recording and alert.

4. Hot-swap Compatible Design: Supports independent slot power isolation and single-card replacement without full rack shutdown, minimizing control room maintenance downtime.

4. Typical Application Scope

5. Installation & Maintenance Instruction

1. Disconnect dedicated slot power before installation; align PCB guide rails with cabinet slots and insert vertically, fasten front panel locking buckles completely; verify output voltage accuracy before restoring rack power supply.

2. After power-on, sequentially install matching serial, video and input interface cards into corresponding slots and conduct full power & communication loop testing.

3. Clean PCB surface dust and power terminal contacts every six months; store spare modules in ESD-controlled dry warehouse, perform quarterly short-time powered aging test to prevent electrolytic capacitor degradation from long-term idle storage.

6. Market Supply Condition