Term Definitions for Support of Do-it-yourself Home Security Products you can count on to improve Home Security and Family Safety

Home Security Systems | Intercoms | Smoke Detectors | Specials

Definitions

Anti blooming: Resistance to washing out/in when the camera is used in a brightly lit area.

2-conductor wire: Two conductor wire is simply two wires run together from one point to another, like speaker wire.

CCD: Charged Coupled Device

Dwell time: This refers to the switching time adjustment when the monitor is in the auto mode, switching from camera 1 to camera 2 etc. Same as "camera switching time".

Channel: The words zone and channel are used to describe the area being protected by one of the transmitters in the security system's memory.

Electret: A type of microphone. Typically has a higher output than standard dynamic microphones.

F.O.V. : Stands for field of view. The 65 should have a degree symbol after it. Field of view 65 degrees.

fl: Focal length, a standard photographic term for lens specifications.

Hz: Standard electrical term for hertz. 120 Vac 60Hz is standard house current in the United States.

Installation Instructions

Linearity: Relates to picture quality.

Line carrier: Line carrier refers to the use of preexisting electrical wiring in the property for sending the communications between units.

NTSC: National TV System Committee. They set the standards for TV in the United States.

Ohms: Standard electrical term for resistance.

PIR: Passive Infrared, basically it is a heat sensor, not a motion sensor.

Smear: Edges of images are not sharp but glare and spread out to one side.

SSD: In Keepsafer, SSD means sensor status display. The console of this system has a LED light display for each of the 8 (SSD-8 System) or 16 (SSD-16 System) transmitters that can be programmed into the memory of the system. This LED display allows the user to know what door is open, what transmitter needs a battery replaced and, most importantly, what transmitter tripped an alarm should that happen.

SSL: Secure Sockets Layer

UL: (Underwriter's Laboratories)

Vac: Standard electrical term for volts alternating current.

Vdc: A standard electrical term for volts direct current.

Video inputs: Delete 1 intercom (connection on camera). This is an audio not video connection.

Vp-p: Stands for volts peak to peak, the measurement of an alternating signal. 1 Vp-p means from + 1 volt to - 1 volt.

W: A standard electrical term for watts, the amount of power consumed by the console.

Zone: The words zone and channel are used to describe the area being protected by one of the transmitters in the security system's memory.