User's Manual

Hardware and Wiring Installation Guide 17
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.
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 CAT 5
Ethernet Cable CAT 5
Intercom Cable 7 cond. with drain, 26 AWG shielded cable
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 2-pair UTP
cable, the same pair must be used at each end of the sensor run. It is suggested that the 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.
To install and wire sensors:
1. Referring to the floor plan schematic diagram, identify sensor locations and verify
identification numbers.
2. Create a hole for the sensor in ceiling tile or ceiling surface using a 2-3/8" hole saw.
3. Pull the sensor cable wire-pair through the hole and connect to the sensor using UY splice
connectors.