Abus SECVEST Installer Manual page 30

Introduction
Perimeter surveillance
Continuous monitoring of large areas of open land
around the periphery or the areas used for approaching
the property, e.g. using light barriers and motion detec-
tors on the premises and/or surveillance cameras with in-
telligent motion detection.
Port
Part of a network address.
Programming
Detailed settings for the alarm panel according to the
user's requirements (e.g. zones/partitions can be de-
fined).
PSTN
Public Switched Telephone Network, analogue, a/b
30
Smoke alarm device
Optical smoke alarm devices save lives, as they respond
to smoke particles in the air (usually poisonous gases).
Heat detectors/heat difference detectors respond to a
maximum temperature (e.g. 65°C) or a rapid increase in
temperature.
Relay outputs
Switching outputs for external devices (lighting control,
electric shutters, other sounders, etc.)
Rolling code (RC)
Rolling code is a technology which provides optimum
protection against code scanning and code grabbing in
order to prevent unauthorised access.
Router
See IAD
RSSI
The Received Signal Strength Indicator is an indica-
tor of the signal strength of wireless communication
applications.