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- Siemens TXS1.EF10
  
  Desigo TX‑I/O Bus Coupler / Power Supply Module
  
  Manufacturer: Siemens
  
  Model: TXS1.EF10
  
  Series: Desigo TX‑I/O (HVAC & Building Automation)
  
  Type: Bus Coupler + Power Supply Module
  
  Status: Active (current building automation platform)
  
  Specifications
  
  Application: Desigo TX‑I/O island bus (P‑bus)西门子工业支持
  
  Supply Voltage: 12–24 V AC/DC, 50/60 Hz
  
  Max Current: 6 A (pass‑through)
  
  Fuse: 10 A (medium time‑lag, replaceable)
  
  Power Consumption: 144 VA max
  
  Bus Interface: Island bus (CD/CS), short‑circuit protected西门子工业支持
  
  Terminals: Plug‑in screw terminals (0.6–2.5 mm²)西门子工业支持
  
  Protection: IP20 (terminals), IP30 (front)
  
  Operating Temp.: 0 °C to +50 °C
  
  Dimensions (W×H×D): ~108 × 77.4 × 42 mm
  
  Weight: ~0.11 kg
  
  Mounting: DIN rail (DIN 43880)
  
  Key Features
  
  Bus coupling + power distribution – connects TX‑I/O modules to island bus and distributes 12–24 V AC/DC power西门子工业支持.
  
  10 A fused protection – safeguards I/O island from overload/short circuit.
  
  Hot‑swap capable – replaceable without shutting down the island西门子工业支持.
  
  Compact DIN rail design – fits standard building automation cabinets.
  
  LED status indicator – “24 V~” for power diagnostics西门子工业支持.
  
  Applications
  
  Siemens Desigo building automation systems (HVAC, lighting, fire safety)
  
  TX‑I/O island bus coupling (starts each I/O row)西门子工业支持
  
  Centralized power distribution for multiple I/O modules
  
  Retrofit & expansion of Desigo TX‑I/O installations