Fire safety zones in buildings are separated by fire walls and fire doors to prevent a fire from spreading.
Fire safety doors have a significant negative effect on wireless signal strength. To minimize the damping effect, consider the following:
- Install separate TBRs for each fire zone, where possible.
- Install TMEs where the above is not possible, but remember:
- Install TMEs as close to the fire safety doors as possible to increase signal strength at the fire safety door.
- Place Thread devices in a clear line of sight to one another.
- Where possible, place TMEs above the top edge of the fire safety door to permit as much of the signal as possible pass by the fire door.
- For additional information on the mounting heights see 'Installation'.
- Close all doors, especially the fire safety doors, before measuring signal strength for the most accurate measurements (particular in the event of a worst case scenario, e.g. fire).