(e.g., in a sub-panel, or if separate power supplies are used for lighting). This is necessary if more than one power supply is used. Within the enclosure, panel wire is also used for wiring.ĭevices that communicate with each other have to share a common GND.
We recommend running one Tree cable from the panel per room and then branching off to the individual Tree devices in that room. For devices with higher power requirements, such as Tree lighting products, the Tree cable also contains a pair of wires with a 1.5mm² cross-section (AWG16) for power supply. The Loxone Tree cable is used for wiring it contains the Tree communication lines and the 24VDC power supply lines in the corresponding colors.
The following wiring topologies are possible at a maximum length of 500m/1640ft: The following diagram shows the wiring of several Tree devices connected to two different Branches of a Tree Extension. There must be no connection between different Tree branches. Up to 50 Tree Devices can be connected to the Tree Interface of a Miniserver, or each of the two branches of a Tree Extension. Up to 50 Tree devices can be connected per Branch with a maximum total length of 500m/1640ft. The Tree Extension is equipped with two Tree interfaces.Ī Tree interface, including wiring and devices connected to it, is called a Branch. The Miniserver features an integrated Tree interface. The UART pin needed an external pull-up resistor to make it usable for normal io.The Loxone Tree Extension allows the integration of various devices like sensors, actuators or lighting products that are equipped with the Loxone Tree technology. Using the teensy's interior pins, and re-purposing one of the UART pins we were able to have 40 pins usable for io. We needed 4 pins for the ethernet connection & 1 pin for the on-board LED. It was a challenge to get 40 I/O available on the teensy 2.0. Each sub board has it's own 5v 5 port switch, and a POE splitter - the whole board being run by 1 port on my POE switch. In our build we have 2 sub-boards each with 4 nodes - making a total of 8 nodes with a capacity for 320 i/o. The boards have a web interface which is really important for setting up and diagnostics as you have feedback showing which inputs or outputs are active.
LOXONE TREE EXTENSION SOFTWARE
The software and interface to the loxone does not use any polling at all- so all the double/triple clicks work flawlessly with the loxone system. I'm not a hardware expert at all! But the system we have made is bullet proof reliable. We did consider using I2C io extension boards, but physical size is a factor and it was easier for us to make it compact using the teensy. I chose the teensy 2.0++ as it had a large number of digital IO on the board.
LOXONE TREE EXTENSION PLUS
Add to that 20 door & window sensors, plus blind controls, PIR sensors, under floor heating actuators and pumps. We have 43 light switches - but each light switch has 4 contacts - making 172 inputs just for the light switches. When specifying the server, we quickly realised we would have to find another solution for all the digital io. I've nearly completed building my own home, and have used the loxone mini-server to supply the home automation.
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