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Re: USB module for monitoring multiple on/off switches
RS-485 is a two wire serial port that can support multi-drop peripherals.
Translator adapters RS232/RS485 can be purchased for about $25.
"Christopher Glaeser" <nospam@xxxxxxxxxx> wrote in message
news:fo2dnYYWE7lUR33XnZ2dnUVZ_oGdnZ2d@xxxxxxxxxxxxxxx
>> Why USB? It can be done almost directly with a serial ...
>
> Directly, as in one port? I need to monitor multiple alarms and need
> multiple ports, as in 8 or more.
>
> Best,
> Christopher
>
>
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