User's Manual

Versus Technology, Inc.
Hardware and Wiring Installation Guide 23
4. System Hardware Installation
This section covers the installation of the system components. Before installing the hardware
components, all planning should be completed as described in Section 3.
For instructions on installing relay boards or corridor lights, refer to Sections 4.8 and 4.9.
4.1 Cable Installation
When installing sensor and network wiring, use normal telephone installation techniques. Sensor
wire runs should allow sufficient length to move ceiling tiles and to move sensors if needed.
It is the responsibility of the installer to run all cables as indicated on the floor plan schematic
diagram. Each cable must be labeled at both ends with the identification of the end device to
which it is connected. Use the same numbering scheme for sensors as described in the previous
section, referring to the Punch-down Block Organization List (C1-1, C1-2, C1-3, etc.). Label
collector cables with the identification of the collector that it runs to down the collector chain,
away from the Concentrator.
4.1.1 Cable Types
Versus Technology recommends the following cable types for installing hardware components:
Sensor Cable UTP CAT 3 is acceptable, Versus recommends CAT 5
Collector Cable Versus provides a silver satin cable to daisy-chain Collectors and
connect the last Collector to the Concentrator. If longer distance is
needed between Collectors, or if Collectors are in proximity to
high electrical interference, CAT 5 cable is needed. See Section
4.5.4.1 for more information on making the CAT 5 cable.
Ethernet Cable CAT 5
Approved equivalent cable types may be used.
4.2 Sensor Installation
Handle the sensors with care to not scratch or damage the casing.
Warning:
Always disconnect power from the system before connecting or disconnecting
components. Failure to do so may damage the equipment.
The UTP wire runs from the punch-down/collector 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.
Sensor installation calls for use of a splice connector at the sensor end of the cable run. Sensor
wires have no polarity and can be connected to sensor wire-pairs in either order. In the case of
two-pair UTP cable, the same pair must be used at each end of the sensor run. It is suggested that
blue wire be used for consistency. Up to four sensors may be used on each CAT 5 cable if
preferred, although using one cable per sensor makes troubleshooting easier.