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Site Hardware
Technical Notes
60
Figure 5-4
Input Configuration During a Maintenance Session
Inputs to a Hybrid LT DVR Used by Hardware Devices
Honeywell recommends that installers report the connection of input devices to the
organization Rapid Eye System Administrator, indicating if the devices are using
connections that are: normally open, normally closed or end-of-line.
Alarm Sensors
Most alarm sensor units have a dry contact for outputs, usually providing normally open
(NO) contacts or normally closed (NC) contacts. The sensor inputs to a Rapid Eye Hybrid
LT DVR are configured for normally open (NO) devices.
End-of-Line
A sensor input can also be configured as EOL (end-of-line or protected). The load for an
EOL connection is 2 k*, nominal.
Table 5-4
Sensor Hardware
Acronym
Sensor Input
NO
Normally Open
NC
Normally Closed
EOL
End of Line
Implication
Input is active when switch goes ON
Input is active when switch goes OFF
Input is active when switch goes ON, or if
wires to the alarm sensor are cut
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