I am pretty much a newbie when it comes to networks so forgive me in advance if this question seems odd.
So here's a situation I am trying to figure out. There's a company who operates in 2 adjacent buildings, separated by 75m, and there is an underground pipe where a network cable could be passed. Let's assume that there is no network configured at the moment. One single static IP adress will be provided by a telco and the router will be installed in Building A's equiment room.
Each building has its own equipment room. There are 2 groups of workers in Building A (lets call them Sales and Accounting) and one group in Building B (Development). I want to have one switch per team (so 3 switches in total). The ultimate goal is to setup a VLAN. Assuming I would run a fiber optic cable from building A to Building B, what type of equipment would be required to connect the switches together to create a single network ?