i vote MT radioactive tubes On Wed, May 9, 2018 at 11:41 AM, <[email protected]> wrote:
> They are light sensitive if they are made out of glass. Not so much with > the ceramics. > The mixture of gasses set the breakdown voltage. The ones I use fire at > about 90 volts. > > I remember working at sites where the gas tubes were filled with > radioactive gases. > > *From:* Adam Moffett > *Sent:* Wednesday, May 9, 2018 10:23 AM > *To:* [email protected] > *Subject:* Re: [AFMUG] mccowntech rack mount surge suppressor with Medusa > > I thought it took hundreds of volts to trigger a gas tube. > > Aren't some of them light sensitive? What if the APC chassis was near a > window and getting direct sunlight? > > > ------ Original Message ------ > From: [email protected] > To: [email protected] > Sent: 5/9/2018 12:00:20 PM > Subject: Re: [AFMUG] mccowntech rack mount surge suppressor with Medusa > > > Funny, the product is so simple. Jacks. Tubes. > > Electrodes with gas between them from the Ethernet lines to ground. > > The only way the tubes can affect the circuit is if they are ionized, > which means a high voltage coming from somewhere. could be coming from a > ground loop or ??? > > Or a tube could be bad, or there could be a solder bridge but the test and > inspection procedure should have caught that. > > > *From:* Sam Lambie > *Sent:* Wednesday, May 9, 2018 9:56 AM > *To:* [email protected] > *Subject:* Re: [AFMUG] mccowntech rack mount surge suppressor with Medusa > > FYI, > > I installed the gas tube version on a gigabit Packetflux Powered Medusa > the other week and no go. The radio boots up for about 25 seconds, and then > shuts down. > > On Wed, May 9, 2018 at 9:54 AM, <[email protected]> wrote: > >> I am going to chase this down. Only certain types of products have the >> issue it seems. >> I am going to try to add solid state to the gas tubes using a different >> design that eliminates the steering diodes. >> Seems like the steering diodes are causing the problem in some >> situations. >> >> *From:* George Skorup >> *Sent:* Wednesday, May 9, 2018 9:50 AM >> *To:* [email protected] >> *Subject:* Re: [AFMUG] mccowntech rack mount surge suppressor with Medusa >> >> No diodes, just gas-tube for large surge event suppression. Obviously not >> as much protection though. I'm seeing more CRC errors than I'm comfortable >> with on the cards with diodes. Rev G is definitely better though. I've >> broken the shield at various sites while testing to rule out any potential >> ground loop issues. Ran on battery. Etc. It's weird. Noise or something, I >> don't know. >> >> On 5/9/2018 10:32 AM, Steve Jones wrote: >> >> What's this gas tube product placement? >> I want to see these >> >> On Wed, May 9, 2018, 9:51 AM <[email protected]> wrote: >> >>> Thanks, yeah nothing fit well next to the thin pcbs. >>> >>> Odd, got some test results back from George yesterday. Some types of >>> equipment has CRC errors with some of our surge suppressors. Trying to >>> identify the bad combinations. Good thing is that our gas tube only >>> products seem to be flawless with everything that people have tried them >>> on. >>> >>> -----Original Message----- >>> From: Matt >>> Sent: Wednesday, May 9, 2018 8:08 AM >>> To: [email protected] >>> Subject: Re: [AFMUG] mccowntech rack mount surge suppressor with Medusa >>> >>> Chuck, >>> >>> Like form factor of new arrestors much better. Thicker PCB and RJ45 >>> not as tall. They do not fit well next to your last thin pcb version >>> though. Did not care for the thin pcb and tall RJ45 at all. Swapped >>> out 4 PxP450i APC arrestors to these 17 hours ago. So far flawless >>> even at 1000base. No errors at all. This is with RackInjector, >>> Cambium Sync and very long cat-5 runs. Time will tell but looks good >>> so far. >>> >>> >>> >>> On Wed, Apr 4, 2018 at 10:29 AM, <[email protected]> wrote: >>> > Matt, >>> > >>> > I sent you a note off-list. I would like to send you the gas tube >>> version >>> > to see if that fixes the issue. >>> > >>> > Inquiring minds want to know... >>> > >>> > -----Original Message----- From: Matt >>> > Sent: Wednesday, March 28, 2018 4:08 PM >>> > To: [email protected] >>> > Subject: Re: [AFMUG] mccowntech rack mount surge suppressor with Medusa >>> > >>> >> OK, so grounds are related to the problem. >>> >> >>> >> There may be something unusual with timing pulses on the power that is >>> >> causing the surge suppressor to fire. >>> >> Forrest would know much more than I about that. >>> >> >>> >> I honestly don’t know if anyone has tried my product with a Medusa >>> >> before. >>> >> I have a 100% gas tube version that may solve the problem. >>> > >>> > >>> > I am still having some troubles with PTP450i holding 1gbit ethernet >>> > even with Cambium sync. Not near as bad with Cambium Sync though. >>> > Will these gas tube versions work any better? Will they still keep >>> > equipment safe? >>> >>> >> > > > -- > -- > *Sam Lambie* > Taosnet Wireless Tech. > 575-758-7598 Office > www.Taosnet.com <http://www.newmex.com> > >
