Messages in this thread | | | Date | Wed, 9 Jan 2008 13:39:24 +0100 (CET) | From | Jan Engelhardt <> | Subject | Re: NIC as RS232 |
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On Jan 9 2008 09:29, Geert Uytterhoeven wrote: >On Tue, 8 Jan 2008, Valdis.Kletnieks@vt.edu wrote: >> On Tue, 08 Jan 2008 08:48:35 +0200, Thanasis said: >> > Is there a kernel driver that would make a NIC's port work as a RS232 >> > port, using the serial cables that are RJ45 on one side and DB9 or DB25 >> > on the other? Maybe null modem cables of that type ? Or for example >> > those used by cisco as console port cables? >> > >> > (or may be I'm dreaming ;-) >> >> What I *have* seen are connectors that go from DB9/25 to RJ11, not RJ45. >> Basically, using the RJ11 to terminate a 4-conductor cable wired up for >> serial use. It's often hard to tell an 11 from a 45 unless you look at >> it *real* close.... > >We have plenty of DB9-to-RJ45 at work. Very useful when abusing the >Ethernet cabling in the wall for serial connections (also used for >phone). > >Maybe surprisingly to you, I haven't seen the RJ11 variant ;-)
UPSes like APC Back-UPS CS 500 use RJ11/45. Connector has 8 contacts, but only 4 of them are fed to the to-USB integrated circuit. Funny.
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