I have a new customer with an interesting project:
At remote sites, there will be a RB411UAHR tunnelling back to a central concentrator. The RBs will be connected to the Internet via a GSM modems and a black box device will be connected to each RBs Ethernet port. That is the only equipment at the remote site.
The black box runs from a 12V supply and is very unreliable. There is therefore a requirement for forcing a remote power cycle of it.
So, I would like some way of using the RB to switch a relay which would then be used to cycle the black box.
I can think of several ways of doing it if I use external hardware (the best of which would be an Arduino monitoring the serial port), but it would be nice to be able to do it without any additional hardware (apart from the relay, of course).
Any ideas anybody?