Hi Steve, Totally outside the square here.. but here goes... You mentioned an UPS inline to the POE injector. Given your mention of a domestic setup let's assume cheap line interactive ( if that matters ) If the UPS detected mains issues ( brown-out, drop etc ) could the switch over from mains to battery/inverter ( 50ms? ) cause issues downstream to the tik ? I am sure you guys are more well-versed in grounding etc than me, but I have seen electronics so some weird and wonderful stuff because of grounding issues. cheers Paul
-----Original Message----- From: Public [mailto:public-bounces@talk.mikrotik.com.au] On Behalf Of Steve at Digitronics Sent: Wednesday, 30 April 2014 11:20 AM To: 'MikroTik Australia Public List' Subject: Re: [MT-AU Public] Problems with multiple RBMetal2SHPn devices.failing at one site
Hello Paul,
Nice catch. The CAT5 is the last item on our possible list. We have it scheduled for replacement this coming weekend.
The current run is high quality underground rated CAT5. It is only around 15-20m in a domestic environment with no identified likely sources of large electrical transients. However, as pretty much a guess of last resort, we intend to replace it with top spec shielded CAT5 properly grounded to eliminate any possibility of induced transients from the environment. Fingers are utterly crossed.
Steve.
-----Original Message----- From: Public [mailto:public-bounces@talk.mikrotik.com.au] On Behalf Of Paul Julian Sent: Wednesday, 30 April 2014 13:01 To: MikroTik Australia Public List Subject: Re: [MT-AU Public] Problems with multiple RBMetal2SHPn devices.failing at one site
Hi Steve, do you have the opportunity to swap the cat5 with another which is at the same location to see if the problem follows the cable ?
I remember a long time ago in my cb radio days it was common for not so nice people to push pins through your coax which would provide a painful problem to find, everything would still work but your swr on the antenna would be woeful, I'm not saying that you have pins in the cable :-) but a fault in the cable might display some strange issues and probably still happily supply power successfully
Regards Paul
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