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- Newsgroups: sci.electronics
- Path: sparky!uunet!cs.utexas.edu!asuvax!ukma!nntp.msstate.edu!Isis.MsState.Edu!geb1
- From: geb1@ra.msstate.edu (Granville Barker)
- Subject: RS-232 Line Monitor???
- Message-ID: <geb1.715477196@Isis.MsState.Edu>
- Organization: Mississippi State University
- Date: Wed, 2 Sep 1992 23:39:56 GMT
- Lines: 18
-
- I am trying to build a RS-232 line monitor.
-
- I want to connect it between two RS-232 devices, and have a wire comming
- off that I can connect to another computer and monitor both sides of the
- conversation between the other two devices. Ie.. a Plotter and a Computer.
-
- I need to see what is being transmited and received, I tried hooking
- pins 2 and 3 to diodes, then connecting rx on the monitor computer to
- the other end of the diodes. THe other 2 devices still communicate ok, but
- I never see anything on my monitor computer. I am connecting ground.
-
- Any ideas??
-
-
- Thanks,
-
- Granville Barker
- geb1@isis.msstate.edu
-