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US/U4.3 KNX Universal Interface 4-fold
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US/U4.3 KNX Universal Interface 4-fold: Flush Mount, Data Secure and 4-Point Flexibility
The US/U4.3 is also capable of handling analog signals (0–10 V / 4–20 mA) across all 4 channels, expanding its versatility beyond simple switching applications while maintaining a very low power loss of just 0.25 W.
1. US/U4.3 KNX Universal Interface 4-fold: Flexibility, Security, and Integration
Designed for easy integration and robust communication within the KNX system.
Functionality and Configuration:
- Channels: 4 independent channels that can be configured as inputs (push-buttons, contacts) or outputs (LEDs).
- Conventional Integration: Perfect for connecting standard push-buttons, switches, and pilot LEDs to the KNX bus.
- Analog Capability: Handles analog input signals such as 0–10 V or 4–20 mA from various sensors.
- Security: Supports the KNX Data Secure standard for secure telegram transmission.
Installation and Consumption:
- Mounting Type: Designed for Flush Mounted (FM) installation, ensuring discretion.
- Dimensions: Extremely compact (39 mm H x 40 mm D x 12 mm W).
- Low Power: Very low power loss of just 0.25 W.
2. Technical Details and Actuator Pairing
This interface serves as a vital bridge between physical controls and the KNX automation system.
- Input Voltage: Pulsed 20 V.
- Output Voltage (LED): 3.3 V DC (max 5 mA).
- Pairing: Push-buttons connected to this interface typically control a KNX Switch Actuator or a KNX Dimmer Actuator (Internal Links).
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