Black Box ServSensor JR EME102A, Руководство пользователя, Страница: 38 / 135

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ServSensor JR
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2.1.7 SECURITY S
ENSOR
The Security sensor is a magnetic on/off switch that is used as an input
to the ServSensor JR. Security sensors come in pairs. They are active
switches that close when one half of the sensor is in close proximity to
its mate. When the two sensor pairs are moved apart from each other
they open. The ServSensor JR senses closure and opening and reports
the condition.
Security Sensors can be wired in series so that multiple sensors can use
a single port on the ServSensor JR. There are no reasonable limits on
the distance of the security sensors from the ServSensor JR.
The ServSensor JR will retain any error condition until it is read via an
SNMP get. Therefore if a security sensor encounters a critical
condition at any time it must report that condition before it can return
to a normal state.
A popular OID for switch Sensors is the status. For RJ45 #1 it is
OID .1.3.6.1.4.1.3854.1.2.2.1.18.1.3.0
Features
•
On/Off alarm signal when Security Sensors switches
open/closed
•
Accurate, cost effective Security System
•
Electronics are simple and reliable
•
Sensor type - open/closed contact switch
•
Power source: powered by the ServSensor JR. No additional
power needed.
•
ServSensor JR autodetects the presence of the Security sensor
•
Up to 2 Security Sensors per ServSensor JR
•
Includes disconnect alarm that checks that the Security sensor
is securely plugged into the ServSensor JR