Hi Greg, FWIW, I have a serial cable that is about 100 feet long and my station has been operating for 5 years John
On Saturday, February 10, 2018 at 6:13:37 PM UTC-7, Greg Troxel wrote: > > I have a Vantage Pro 2 with a recent datalogger, and with the included 8 > foot RJ11 extension cable and a PL2303 USB/serial adaptor (to a 2008 > vintage Mac notebook running NetBSD), weewx is running fine. > > I am about to run cables from the console to a more reasonable place for > the computer. I notice that Davis specifies 48' max (the 8' plus a > non-supplied 40'). I am inclined to use some CAT3 or CAT5 cable and use > 2 pairs, one with ground/TX and one with ground/TX, and wire up a short > connecting cable at each end to a DB9. My planned run might be a little > longer than the 48' spec. > > So I wonder: > > Has anybody used a too-long cable, and did it work ok? What type, > length and ok or not? > > The datalogger is labeled serial, but I notice it doesn't say RS232. > Is it real RS232 levels (-12V/+12V, ish), or TTL (0/5V)? > > Thanks, > Greg > -- You received this message because you are subscribed to the Google Groups "weewx-user" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
