I have had a lot of them fail for this issue, Cambium was initially repairing/replacing old 450AP's even ones that were out of warranty until they realized how many I had. Then they started to say that basically since it was out of warranty they weren't going to do anything anymore. I have an email from Matt basically admitting that these units are going to fail in the 4-5 year marks due to design flaw. He basically told me to drill some holes in the bottom of the case for the water to escape if it got in. I was so pissed at his response that I didn't even bother email him back. These units were spec'ed at 40 year MTBF ratings and to admit that basically after 5 years they were going to fail really got me upset especially when I have junk Tranzeo's still out in service that are 10+ years old running flawlessly.
On Thu, Sep 21, 2017 at 8:47 PM, Mark Radabaugh <m...@amplex.net> wrote: > We have seen a number of them. Usually where the gortex vent cloth wasn’t > centered in the hole, or the retaining ring wasn’t fully staked in. I > usually plug the vent with mastic and leave out the plug in the timing port > grommet. > > Mark > > > > On Sep 21, 2017, at 8:40 PM, Roland Houin <rho...@fourway.net> wrote: > > > > yes, we've had a few.. > > > > roland > > > > > >> I'm investigating a PMP450 5ghz AP (old unit - the original ones that > came > > with the FSK port) that failed on the tower. RJ45 and especially RJ12 > ports > > have white dots on the pins. Looking in the case, there seems to be > evidence of > > water intrusion coming from the little temperature/humidity control > > membrane-covered hole in back. But a quick test of dripping water on the > case > > does not cause water intrusion in that hole. Has anyone else seen such > issues > > with older PMP450 APs? < > > > >
