When a contractor has introduced a device that must be installed.Installation of closed-circuit TV cameras (CCTV) thot number 15, according to the letter number information "." the 2.1 and 2.14.
When the contractor has the equipment to be installed on the camera's resolution calling surveillance (CCTV) on the list of Part 15 of the letter "J" in 2.1 to 2.14.
When the equipment installation contractors to install call camera surveillance. decade (CCTV) were 15 according to detailed catalogue number of letters. "" the 2.1 to 2.14.