Hi everyone,

We are having such an annoying problem since a coupple of months ago. Especially it comes up in rainy regions when using outdoor boxes and routerBoard 532: enviroment humidity comes in through condensation holes, it becomes water that rustes connectors and make them unusefull. Support has suggested us to put boxes sideways so that the water could flow out the box through the same holes where it comes in. However, we do not consider this one as the best solution. They have also suggested to fill the holes with sillicone but we are kind of worried about heat increasing.

Please, has anybody experienced same kind of problem? any other solution you contribute with will be very welcome.

Thanks and regards.

Hi everyone,

We are having such an annoying problem since a coupple of months ago. Especially it comes up in rainy regions when using outdoor boxes and routerBoard 532: enviroment humidity comes in through condensation holes, it becomes water that rustes connectors and make them unusefull. Support has suggested us to put boxes sideways so that the water could flow out the box through the same holes where it comes in. However, we do not consider this one as the best solution. They have also suggested to fill the holes with sillicone but we are kind of worried about heat increasing.

Please, has anybody experienced same kind of problem? any other solution you contribute with will be very welcome.

Thanks and regards.

I wonder if your issue is not so much moisture by itself as industrial pollutants, such as H2S, acting in combination w/humidity?

In our case we've got a sizable population of gear deployed outdoors in housings including MikroTik's own white plastic box, the PacWireless aluminum NEMA6 box, Hammond NEMA4 fibreglass and even "drip resistant" steel boxes that are pretty much open-air except for their watershedding geometry. This gear is installed in areas where the annual rainfall ranges from 200cm to nearly 800cm per year. We've had only one connector failure, that being a leaky ethernet boot.

Where we do see corrosion problems are those areas where this moisture is combined w/H2S gas from a local volcano to form sulphuric acid, also in oceanside locations where salt is present. Nothing affecting the inside of boxes and electronics, but antenna hardware (including stainless) corrodes with extraordinary rapidity

Anyway, unless you've got some kind of really harsh gaseous pollutant acting on your gear, the solution to problems of this kind is to keep the temperature of electronics above the dew point. No condensation, no corrosion.

Try sealing the holes with some sort of sealing compound, and place a silica pack inside to absorb moisture trapped within the air inside the enclosure.