K

Kilobits Per Second (Kbps)

See Bits Per Second.

Key Fob

A small device, usually carried on a keyring, programmed to allow entry into a premises.

Keypad

A device with a keyboard and display that allows users to enter codes, arm and disarm areas, view current and past events, and perform system functions, such as silencing alarm bells and changing user codes. Keypads can have LCD, touchscreen, LED or vacuum fluorescent alphanumeric displays.

Keypad Alarm Control

A burglar alarm control that is turned on and off by entering a numeric code into a digital keypad. Signals can be sent when the control is turned on and off so that the monitoring center alarm company can supervise openings and closings.

Keypad Bus

A data bus onto were user can connect addressable zone, output, or wireless expanders.

Keyswitch

A mechanical key cylinder that can be connected to a pair of wires and used to arm and disarm an area. Keyswitches are usually installed on a metal switch plate, along with LED indicators, and placed outside the protected premises.

Kiss-Off

A tone signal generated to a digital communicator by a monitoring center receiver indicating the transmission was received.