Glossary
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14 Glossary
Absorption
degradation of the RF signal due to a change in
the passive environment of the system after its
installation (e.g. creation, relocation or reflection
Address unique object identifier and/or device identifier
within a system or combined systems; 1) cf. point
address; 2) cf. user address
a type of token defined as credit card size
Group code
a combination of numeric character that an ac-
cess group possesses for verification of identity
Installation key
binary string of characters which is used as the
basis of encryption for the installer
PIN (Personal identification number)
a combination of numeric character that a person
possesses for verification of identity
Propagation energy transfer between two points without dis-
Radio link
telecommunication facility between two points
provided by means of radio waves'
Reflection the change in direction of an incident wave at an
interface between two dissimilar media so that the
wave returns partially or totally into the medium
Segment ID
numeric character of combination which defines
the affiliation of the devices to a segment
a type of token defined as a customised form
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