The flexitalk was sometimes refered to as a Mini by Nokia Engineers and some Uk operators but it was more of a pet name and never an official product identifier
It got called a mini becouse it was based on the DE34 modular platform but in shrunken form
Sounds like what we called a street furniture solution
The Flexitalk itself could be installed outdoors due to being ip55 rated and had a cooling fan module underneath the baseband and RF section
However many operators had purpose built enclosures into which the Flexitalk was installed
Dependent on the enclosure different aircon systems were used
What is your enclosure type?