iPECS eMG80
System DECT Installation Guide
Issue 1.3
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are minimized will bring quite different results from a real office environment.
If there is fading due to metal material, the RSSI value can be varied over a wide
range.
Use a fully-charged battery pack.
3.2.4 Base Station General Guidelines
Using the guidelines and examples below, determine and indicate the approximate Base station
locations on the drawing.
Maximize line-of-sight
Distance in open field 150 meters ~ -65 dbm
Distance in-office 25 to 40 meters
Distance in hallway or open factory floor 40 to 70 meters
Locate Base stations to minimize obstructions (sprinklers, exit signs, etc.)
Locate Base stations away from noise emitters (FAX machines, etc.)
Locate Base stations away from metal objects (tall filing cabinets, security/fire doors,
etc.)
Locate Base stations near the center of the desired coverage area
For proper handover, the coverage area of each Base station should overlap by 10 to
15 meters.
Consider high traffic areas such as conference rooms and cafeterias.
Each Base station supports four (4) simultaneous conversations.
Multiple Base stations can be co-located with a minimum distance of 0.25 meters.
For a multi-floor installation, plan coverage for each floor separately
Attenuation approximations considering office equipment and materials:
Open field = 0.5 db/meter
Office environment = 2 to 3 db/meter (25 ~ 40 meters)
Hall or open factory floor = 1 to 2 db/meter (40 to 70 meters)
Concrete and masonry = 15 db/cm
Windows, clear glass = 5 dbWindows, mirrored glass = 15 db
Drywall, standard = 5 db
Drywall, metal backed = 12 db
Metal, 1.5 mm = > 20db
