The type of apparatus housed in ERs varies greatly in size, purpose and function. Which two of the following active equipment is included? (Select two options.)

Question

Options

• ACross-connect facilities
• BTelecommunication's equipment
• CEnvironmental controls
• DLighting controls
• EBuilding system equipment

• A
  3% (1)
• B
  81% (25)
• C
  13% (4)
• D
  3% (1)

Explanation

Telecommunications equipment (B) and building system equipment (E) are correct because Equipment Rooms (ERs) are defined spaces specifically designed to house active, powered electronic systems that serve an entire building - including network switches, servers, and other telecom gear (B), as well as centralized active systems like security panels, fire alarm controllers, and building automation systems (E).

Cross-connect facilities (A) are passive components (patch panels, punch-down blocks) used to interconnect cables - they are not "active" equipment since they require no power to function. Environmental controls (C) and lighting controls (D) are supporting or ancillary systems that manage conditions around or within the building, rather than being the active equipment housed inside the ER itself - they are infrastructure services, not ER tenants.

Memory tip: Think of an ER as a "brain room" - it holds anything that thinks and communicates (telecom equipment) or manages the building's active systems (building system equipment). Passive cable organizers, thermostats, and light switches live elsewhere in the infrastructure hierarchy.

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