Jan 2019 AST Magazine Jan 2019 AST Magazine | Page 7

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January 2019 - Edition 31
Senstar Wireless Gate Sensor
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tions and includes supervision mechanisms and do not disregard it immediately as a false
that generate alarms if the device is physical- alarm.
ly moved or damaged, or if the RF communica-
Consider the following scenarios that could
tions link is in some way compromised.
negatively affect communications:
It also guards against replay and cloning at-
Device malfunction or loss
tacks.
Reliability, Resiliency and Vulnerability • Wireless equipment must support fre-
quent and periodic check-ins, within tens
Like their wired counterparts, the connec-
of seconds.
tivity of wireless devices must be moni-
• If the link has been compromised to the
tored by the security system.
point where alarm messages cannot be
Communication loss should immediately be
sent/received, or if bidirectional commu-
reported as a supervision alarm.
nications cannot be guaranteed, the sys-
tem should indicate the device is offline.
This also means that the communication links
must be reliable enough that operators view
a communications loss as a potential threat RF jamming
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