User's Manual

12 Versus Technology, Inc.
Do not mount sensors near lights or electrical fixtures unless absolutely necessary. If the performance
of an IR sensor is in question, move the sensor as far away from any nearby lights or electrical fixtures
as is practical.
To avoid problems with light interference:
If sensors must be mounted near lights;
1. Mount sensor as far from the light as possible
2. Mount sensor so that the light does not have a direct path into the sensor “eyes”.
3. As a last resort, mask the eyes of the sensor that are receiving the direct light, using electrical
tape. (Caution: this disables the sensor operation in that direction).
To avoid problems with EMI noise:
1. Do not mount IR sensors near suspect fixtures.
2. Do not run sensor connection cables near suspect fixtures.
3.3.3 RF Sensor Location Planning
Planning the location of RF sensors depends upon the facility. In most cases, for complete coverage,
they can be placed approximately 100’ apart, because they have a sensitivity range radius of 50’.
However, because concrete and steel structures absorb the RF signal, and other materials affect the
strength of RF signals, testing is necessary to determine the best placement of RF sensors. In multi-
floor facilities, it is desirable to stagger locations, i.e. do not place the one on the third floor directly
above the one on the second floor, for better coverage.
3.3.4 Mapping the Sensor Locations on the Floor Plan
The sensor locations should be mapped out on a floor plan diagram of the facility. These are the
locations where the sensor cable will be run. We suggest using a numbering scheme such as C1-1, C1-
2, C1-3, C2-1, C2-2, C2-3 etc., where “C1” represents Collector 1 and “C2” represents Collector 2. Up
to 24 sensors can be connected to one collector, although we recommend 20-22 to allow for future
expansion. The wires should be labeled at both ends with these numbers, as well.
The facility should provide you with the names of the rooms. The room names will be used for
configuring software. Once the sensors have been mapped with identification numbers, and the facility
has provided a list of names of the rooms, complete the Punch-down Block Organization Chart with