User`s guide

54
Radio Systems
You security system may be fitted with a
radio receiver (called an MRNode) that
‘listens’ for signals from wire-free detectors
and other transmitters, and reports their
activity to the control unit.
The control unit treats the wire free detectors
as standard zones. All the options described
in the existing Manager’s Manual work with
wire free detectors in the same way as with
wired detectors.
Telecommands and PAs
The MRNode also detects signals from small
portable transmitters, called
“telecommands” and “PAs”. PA is short for
“personal attack”, “panic alarm”, or
“personal assistance”.
A telecommand is a remote control for your
security system. By pressing buttons on a
telecommand you can set and unset the
system from outside the premises. Later
sections of this booklet tell you how to
program the buttons of individual
telecommands. (Note that the installer may
put some restrictions on exactly how you
can use a telecommand.)
A “PA” is a transmitter whose function is
purely to start a PA alarm. This type of
transmitter cannot set or unset the system.
Frequently PA transmitters have only one or
two buttons. You do not have to carry out