DPH16 - Securing against harmful influence of weather conditions
From pubWiki-en
Doorphone case is resistant to weather conditions, however when mounting outside build it is recommended to place it while sheltered, to avoid directly failing rain or wind, which can distrupt while talking through doorphone. During surface mounting, it is recommended to apply special rust-resistant cover, sheltering from weather conditions, so called "roof".
For proper protection against weather, connected cables must be properly routed inside case through opening nr.3. Ater routing cable, opening must be sealed with silicone layer.