IDS X64

IDS | Event Reporting
18
Appendix
Wireless Installation Considerations
1. Receivers may be blocked by radio signals on or near their operating frequencies, regardless of the
code selected. IDS wireless works on 433MHz, so do transmitter remotes.
2. Receivers can only respond to one transmitted signal at a time.
3. Wireless equipment should be tested regularly, at least once a week, to determine if there are sources
of interference and to protect against faults.
4. Some wireless devices when their batteries run low can begin to send random signals flooding the
area.
5. Do not install next to any electrical wiring. Make sure that there are none imbedded in the wall.
6. Different materials have different effect on wireless signals. Any material that has a high rating should
be kept as far away as possible and not in between the device and receiver. When installing, do not
install closer than 1 meter.
The following table provides more information about the degree to which some materials can interfere.
Relative Attenuation of RF Obstacles
Obstruction
Degree of
Attenuation
Example
Open Space
None
Courtyard, Football field
Wood
Low
Inner wall, office partition, door, floor
Plaster
Low
Inner wall (old plaster lower than new plaster)
Synthetic Materials
Low
Office partition
Cinder block
Low
Inner wall, outer wall
Asbestos
Low
Ceiling
Glass
Low
Non-tinted window
Wire Mesh in Glass
Medium
Door, partition
Metal Tinted Glass
Medium
Tinted window
Human Body
Medium
Large group of people
Water
Medium
Damp wood, aquarium, organic inventory
Bricks
Medium
Inner wall, outer wall, floor
Marble
Medium
Inner wall, outer wall, floor
Ceramic (Metal Content
or Backing)
High
Ceramic tile, ceiling, floor
Paper
High
Roll or stack of paper stock
Concrete
High
Floor, outer wall, support pillar
Bulletproof Glass
High
Security booth
Silvering
Very High
Mirror
Metal
Very High
Desk, office partition, reinforced concrete, elevator shaft,
filing cabinet, sprinkler system, ventilator