IMS-4000 Manual
140
IMS-4861 Passive Infrared Detection Sensor
Installation Instructions
Introduction
The IMS-4861 Passive Infrared Detection Sensor is a
dual-element passive infrared intrusion detector for use
in electronic security systems. It reduces false alarms
by eliminating background noises and nuisance stimuli.
The IMS-4861employs variable pulse-count adjustment,
thus making it adaptable for use both inside and outside
of server/equipment rooms. It is designed to connect to
the IMS-4000 Host or Node. Refer to the manufacturerʼs
instruction guide for more information.
Package Contents
(1) IMS-4861 Passive Infrared Detection Sensor
(2) Plastic drywall anchors
(2) #6 Metal tapping screws
Cabling
The Passive Infrared Detection Sensor comes with an attached 7' cable with an RJ-45 plug on the
end. If the sensor is close to the IMS-4000 Host or Node, you can plug the sensor directly to an
IMS environmental input. If the cable is too short you can use the included RJ-45 adaptor and a
longer patch cable to extend the length. For applications where the sensor may be far from the IMS
unit, you may utilize your existing network wiring infrastructure. For example, the sensor may be
installed in another room or another floor. Connect the sensor to your structured wiring network
via an RJ-45 jack. At the other end, connect a patch cable from your structured wiring patch panel
directly to the Host or Node environment input.
!
Caution:
The IMS sensors are not TCP/IP devices and therefore should not be
connected directly to any wiring infrastructure that is connected to network equipment
such as a hub, router, or switch. Sensors use RJ-45 plugs and cables similar to those
used with Ethernet devices.
Mounting
You should install the IMS-4861 sensor in a location that is most likely to intercept an intruder. The
IMS-4861 monitors motion across a 90.5º field of vision and can detect motion across the beam as
well as motion coming toward the sensor.
Note
: Avoid installing the sensor where it faces direct sunlight; faces areas that may change
temperature rapidly, or areas where there are air ducts or substantial air flows. All of these can
create false reports.
The IMS-4861 can be installed by its bracket to either a wall or a ceiling. The bracket cover is used
for mounting to walls. Remove the cover for ceiling mounting.
(See Figure 1)
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