User's Manual

Versus Technology, Inc.
22 Versus Information System
3.6.3 Grounding of Equipment
All points in a system
installation are connected to a common “ground” via their interconnect
wires. No attempt should be made to provide any additional earth ground or neutral connections to
any sensor or collector. Adding ground connections to multiple points in a networked system may
introduce electrical system noises that will interfere with normal system operation. Consult the
manufacturer if special grounding requirements must be met.
CAUTION: Allowing sensor or network conductors to encounter metal surfaces and
structures, or allowing wires to be routed in close proximity to high-
powered equipment or devices will introduce electrical interference and
may cause erratic operation and/or equipment failure.
EXCEPTION: For interference on the collector cable, see Section 4.5.4.1 for more
information on making the CAT 5 cable.
3.6.4 Codes and Ratings of Materials Used
The materials used in the construction of individual components meet or exceed UL fire retarding
requirements. However, not all these devices are rated for air plenum use. They are intended for
utility closet mounting and must not be placed in airways or plenum areas, unless they can be
housed in approved enclosures and sealed to meet local codes.
Installers must be aware of local fire and health codes in their selection of interconnect wiring.
Plenum-rated wire and cable must be used where it will pass through breathable air spaces. Wire
and cable rated for plenum use will be clearly marked. For information regarding plenum cabling,
call Versus Technology, Inc. Manufacturing Department.
3.6.5 Workmanship
The following standards of workmanship must be followed during installation:
• National and local building codes must be followed.
• Tools used must be as recommended by the manufacturer, or approved equivalents.
• Connections must be made with manufacturer’s recommended tools and procedures.
• Conductors must not be nicked nor wire strands cut during wire stripping.
• Wire bundles must be neatly dressed.
• Wire bundles must be spaced away from power cables and lighting.