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Light 1Wire-UNI: Illumination sensor


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Simple light intensity sensor for indoor use. The sensor is designed for use with Ares, Poseidon, and other HW group products. Connects to the 1-Wire UNI bus (RJ11).

Typical applications include distinguishing day from night, or detecting the presence of people in a server room (light is turned on).

Each sensor is identified by a unique serial number. Several sensors can be connected in parallel to a single RJ11 port.

Usage examples

  • Connect the probe to a Poseidon unit and receive an e-mail every time someone enters the room (and turns on the light) or leaves (turns off the light).
  • Connect the probe to an Ares unit for indicative monitoring of photovoltaic panel illumination.
  • Can be used for simple detection of access to a cabinet.
    Poseidon makes the illumination intensity accessible through SNMP, Modbus/TCP, or other protocols.


Features

  • Output 0% to 100%
  • Several sensors can be connected in parallel (each sensor has a unique serial number)
  • Quick and easy installation

 

 


 

Examples of sensor connections

Star topology – up to 60m + T-Box

  • Sensors can be connected in parallel using a T-Box or T-Box2 splitter.
  • Total wiring length should not exceed 60 meters from an active port.
  • Combined temperature+humidity sensor appears as 2 different sensors with two different IDs.

Daisy chain – up to 60m

  • Some sensors feature a RJ11 connector for daisy-chain (serial) connection.
  • 3m connection cable is usually included.
  • Total wiring length should not exceed 60 meters from an active port.

4 active ports – 4x 60m

  • After autodetection, sensors cannot be moved between individual active ports. When a sensor connection changes, autodetection needs to be re-done.
  • Total wiring length should not exceed 60 meters from an active port.
 

Keywords

Sensor Light, illumination sensor, light sensor, server room lights on detector, 1-Wire bus, T-Box, Poseidon, HWg-Ares, sensor daisy-chaining.

Ordering

 

Name Description
Sensor Light 1W-UNI 3m Light intensity sensor, indoor use, 3m cable, RJ11 connector

 

More accessories

  • 1-Wire hub Power (photo)
    Splitter hub for 1 to 8 sensors (8x RJ11) with power booster. External 12VDC power supply can be used. Suitable for 1-Wire or 1-Wire UNI bus.
  • T-Box RJ11 (photo)
    Splitter hub for 1 or 2 sensors (RJ11), 3 m connecting cable.
  • T-Box2 (photo)
    Splitter hub for 1 to 5 sensors (5x RJ11), 10 cm connecting cable.

 

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