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This is a small module that allows you to use an external power source to feed 5V into your 1-Wire network. It is available to purchase in our online store. 
(click on any photo to see a larger version) It simply consists of a USB socket, two RJ45 sockets and an LED and resistor. The PCB is 55x40mm. The RJ45 sockets overhang by around 2mm giving an overall module size of 55x42mm. The module is 20mm high. The power source can be a spare USB port on your PC or USB hub, or a plug in USB power supply, or alternatively you can connect a 5V supply to the screw terminals. Simply connect your 1-Wire host adapter to the "IN" RJ45 socket and your network to the "OUT" RJ45 socket and all the devices on the "OUT" side will be fed with power on RJ45 pin 2 (as per our RJ45 wiring standard here). Additionally, if the jumper J1 is present, 5V is supplied to pin 6 (AUX +5V) of the OUT RJ45. None of our modules use this pin but future modules or modules from other manufacturers may do. Please note this only provides power on the 5V line. At present this is all any of our modules need but some sold by other people require a 12V (or higher) supply on RJ45 pin 7 which this module does not provide. |