Wiring closet
A wiring cupboard is a small room commonly found in institutional buildings, such as schools and offices, where electrical connections are made. While they are used for many purposes, their most common use is for computer networking where it may be called a premises wire distribution room. Many types of network connections place limits on the distance between end user equipment, such as personal computers, and network access devices, such as routers. These restrictions might require multiple wiring cupboards on each floor of a large building.
File:The_inside_of_a_wiring_closet_at_a_small_public_university,_2014.jpg|thumb|right|The inside of a wiring closet at a small public university. Visible are an optical fiber switch, a 66-type punch block, and two 110-type punch blocks. The orange conduit contains optical fiber cable.
Equipment that may be found in a wiring closet includes:
- Alarm systems
- Circuit breaker panels
- Video systems, such as cable TV and closed-circuit television systems
- Network switches
- Wireless access points
- Fiber optic terminations
- Patch panels
- Punch-down blocks