Installation Manual

Versus Technology, Inc.
DT10000-A0001 18 Revision 8 December 1998
6. INSTALLING AND CHECKING SENSORS
Sensors are installed in ceiling tiles or ceiling surfaces using a 2-3/8" hole saw. The sensor is placed into the
hole and secured using the spring steel clip and the sensor cover to “sandwich” the ceiling tile. The spring steel
clip securely holds the sensor against the ceiling tile allowing for easy access for installing or replacing sensors.
6.1 Sensor Wiring
Normally, the UTP is run from the punch down to a sensor mounted in ceiling tile. Only a single pair of wire is
required for each sensor. No grounding at the sensor is required.
Normal infrared (IR) sensor installation calls for use of a splice connector at the sensor end of the cable run.
Sensor wires have no polarity and may be connected to sensor wire-pairs in either order. In the case of 2-pair
UTP cable, the same pair must be used at each end of the sensor run. It is suggested that the blue pair always be
used for consistency.
6.2 Sensor Wiring Steps
Perform the following steps to wire and install sensors:
1. Refer to the contractual floor plan schematic diagram and identify sensor locations and identification
numbers.
2. Insure that the collector has been previously installed.
3. Remove all bridge clips from the punch-down block.
4. Perform the following for each sensor:
a) Connect the sensor cable wire-pair to each sensor using UY splice connectors.
b) Gently bend the spring steel clips upward and insert the sensor into the ceiling tile hole.
NOTE:
Do not make any connections to components unless indicated by a step in the procedure.
CAUTION:
The sensor casing material is soft and is easily marred and scratched. Handle the sensors
with care.
CAUTION:
Always disconnect power from the system prior to connecting or disconnecting components.
Failure to do so may damage the equipment.