いっきゅー
Comentado en Japón el 6 de noviembre de 2024
USB type-Aからシリアル信号(RS485)の入出力を行うケーブルです。USB to RS232Cはよく見かけますがRS485は珍しい。RS485側のコネクター形状がRJ12なので利用するのに受口を作ってやる必要がありますが、ピン配列も公開されていますし、この手のアイテムを所望する方であれば、大抵の方は何とかできるでしょう。シンプルな形状で収納しやすく、邪魔になりにくいので、RS485が必要な技術者の方は1本持っておいても損は無いかなと思います。ただ、似たような形状のケーブルを大量に所有している場合は、何のケーブルか分かるようにマーキングしておいた方が良いでしょう。
BA
Comentado en el Reino Unido el 5 de noviembre de 2024
A nicely made USB 2 to RS485 Serial converter. Immediate identification and driver support under windows 11, In use nice bright TX and RX LEDs.The shell seems sealed (good for durability etc but ) not ideal for modification fans etc but if this is what you need it's all good and well made
Maria&José
Comentado en España el 29 de noviembre de 2024
Este tipo de cables son un imprescindible a la hora programar, ajustar o revisar maquinaria industrial. Más de un quebradero de cabeza puede evitar el disponer de este conversor de USB a rs485 con el conector rj12.
Tim C
Comentado en el Reino Unido el 2 de noviembre de 2024
This is a USB to RS485 adapter, it has an FTDI 232RNL device in the USB end, which is a fair bit larger than many other USB to serial adapters, I guess this is for the extra RS485 differential driver IC. It also houses an elliptical indicator for separate data transmission and data reception indicators.The cable out is flat, so that it can mate properly with the RJ12 connector at the other end. I'll need to use and RJ12 to DB9 adapter for my use though.Windows quite happily detects this as an FTDI device, so we have to assume its genuine as the FTDI driver didn't brick it.Obviously the applicability of this product isn't for everyone, but if you work with RS485, you will know why you need it - much longer drive distances compared to RS232, because of differential signalling, so it works well in electrically noisy environments. It can also drive much further, again due to the signalling methods used.The weakness in this product is the RJ12, since in time the ear will inevitably break off when it gets stuck on something, so its a shame that the same protection cover hasn't been adopted as is used on RJ45's, or better still, the adapter provides an RJ12 socket, allowing the cable to be replaced when it inevitably gets damaged due to use.
Andreas Goerner
Comentado en Alemania el 13 de noviembre de 2024
Mit diesem Kabel kann ich einen Raspberry Pi mit meinem Solarladeregler verbinden um die aktuellen Werte, über das Modbus Protokoll, auslesen und an meinen Webserver übertragen damit ich immer den aktuellen Stand meiner Anlage im Blick habe.Bei diesem Kabel ist alles vergossen und geschützt damit die Elektronik keinen Schaden nehmen kann.