Security access control (SAC) is an important aspect of any business. Security access control is the act of ensuring that an authenticated user accesses only what they are authorised to and no more. Physical access control is a matter of who, where, and when. An access control system determines who can enter or exit, where they can exit or enter, and when they can enter or exit. Historically, this was partially accomplished through keys and locks. IP systems now bring a complexity of networks & integration that depends on a skillset to ensure maximum potential of the system is gained.