Serial port on the PI is TTL, so you’ll need some level shifters and/or ideally some opto-isolators or buffers to do a proper implementation.
Owen > On Mar 8, 2016, at 08:32 , greg whynott <greg.whyn...@gmail.com> wrote: > > Thanks to all who responded to me, quite the flood of suggestions and > options. > > Found a lot of 20 Digi CM32's on ebay for 35 dollars each, overkill but > can't beat the price, going to look into those to make sure they are still > able to get OS updates. There will be no firewall in front of this device > so it should have one itself. > > I like the raspberry pi idea... Would ensure perpetual security updates > with the OS running on it, whereas I'm sure some of the vendors of > commercial console products EOL support at some point. The fact it runs > linux is inviting as we can add it to our monitoring systems. > > have a great day, > greg > > > > On Tue, Mar 8, 2016 at 10:33 AM, Christopher Morrow <morrowc.li...@gmail.com >> wrote: > >> for singular serial .. there are many, do you want something that's >> "appliance" or are you willing to deploy 18 raspnberry-pi-like >> thingies? >> >> On Tue, Mar 8, 2016 at 10:30 AM, greg whynott <greg.whyn...@gmail.com> >> wrote: >>> Recently I have taking over the responsibility of managing about 18 >> remote >>> routers and firewalls. None of these have a console port for 'out of >>> band' access accessible today. >>> >>> Most sites has available IPs between the ISP and us (typically a /29) or >> a >>> backup DSL connection available for use. I'd like to purchase a IP to >>> Serial port device I can use for each location in the event I lock myself >>> out. The requirement would be an Ethernet port, a serial port, and >> SSH. >>> >>> >>> Anyone have any recommendations on something like this? >>> >>> thanks much, >>> greg >>
