When to choose what model AP? MR46E/MR76/MR86

[Edwyn]

We're busy with multiple Meraki AP roll outs as a replacement of our office locations, but we are also looking at new options to enable wireless.

One of the new wireless options we like to look into are greenhouses. We have a large number of greenhouses and have decided to deliver wireless in corridors as supporting wireless throughout the greenhouses is no option (sizing and high plants and leaves). 

We have standardized on MR46E (mainly for warehouses) and the MR76 (preferred model) and the high end MR86. But here is the question. When to choose what model? If I do a site survey measurement with Yagna there is not much difference.

Is there a document where is listed where to use what model of AP? I read the model comparison and RF specs but like to know when to use what model.

[GreenMan]

MR76 and MR86 are specifically designed for outdoor use (think:  weather-resistant).   Consider using these indoors if you have environmental challenges in that location, similar to weather issues:   e.g. if the APs are likely to get wet or particularly hot/cold.   Make sure you match up the right antennas to your AP choice;  the indoor APs / antennas have RP-TNC connectors, the outdoor APs / antennas have N-type.    In terms of choosing between the models, that's likely down to usage - use an experienced Cisco partner to help with the choice - but try to gather as much info about who will be using the WiFi when, for what and using what kinds of devices - they should be using that to help scope the solution.   In particular around concurrency - how many connected clients at the same time?

Slightly concerned about your mention of not putting APs in the greenhouses - don't assume that the WiFi signal will penetrate the glass.   One of the things your Cisco partner should be able to provide is a proper site survey, which should assess and test all this stuff.

[Edwyn]

Hi GreenMan,

Thanks for the reply. We specifically use the MR76/MR86 in greenhouses because of the heat and damp/water. The MR48E we use mainly for warehouses.

We did ask a Cisco partner and many other people, but there is hardly any knowledge on wireless in greenhouses (our greenhouses are like 600x250 meters in size with many cells). The glass is not the issue. Its the leafs that is causing the issues. We did a proper measurement with Ekahu for one cell (80x40 meters and we needed 32 AP's for just one cell. Standing in a row with an AP two rows away the signal drops to -85 already.