The following are some of the types of equipment and system characteristics that delineate "Type A," "Type B," and "Type C" systems, as referred to in this content outline.
Type A Systems
These are basic systems with standard components, low bandwidth transmission, and menu-driven set-up, such as:
Multiplexer/VCR
Quad/VCR
Digital video recorders with time/date, play/record, and anti-tamper functions
Sequential switch
Single keyboard
Indoor/outdoor
Standard cable runs not requiring repeaters or amplifiers (less than 800 ft. for coaxial; less than 1500 ft. for twisted pair)
Type B Systems
These systems can include specialized components, programmable controls, and high-bandwidth transmission, such as:
PTZ
Multiple keyboards
Matrix interfaced with alarms, A/C, or intercom (GPI or dry contact)
Digital video recorders with programmable, alarm-based resolution and frame rate
Fiber transmission systems
Low light
Long cable runs
Covert or portable systems
RF modulators
Type C Systems
These systems can include PCs, serial communication, and wireless transmission, such as: