Hello.
Suspended installation on a “drop-ceiling T-Rail” is not described in the installation guide and no brackets are provided. As described in the guide, it can be mounted on a vertical surface, but the GR10 mounting part is just a screw. In other words, if you forcefully use the accessories to install the AP hanging, the AP may fall. Even if you use a 3rd party product or your own work, you need to be careful not to drop it. (Its installation is an unsupported method, so drop damage is at your own risk)
Meraki Go GR10 Installation Guide - Cisco Meraki
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