Cell Size - Black Box LW0050A Manual

PRO 11 SERIES WIRELESS ETHERNET
Use the following table as a guideline to predict the effects of different materials.
Obstruction
Open Space
Window (non-metallic tint)
Window (metallic tint)
Light Wall (dry wall)
Medium Wall (wood)
Heavy Wall (solid core 6")
Very Heavy Wall (solid core 12")
Floor/Ceiling (solid core)
Floor/Ceiling (heavy solid core)
Note: Take stairwells and elevator shafts into consideration when positioning Access
Points. There is no way to quantify the loss associated with these obstructions, but
they do have an effect on the signal.
5.2.4 C S
ELL IZE
Cell size is determined by the maximum possible distance between the Access
Point and the Station Adapter. This distance varies according to the building floor
plan and the nature of that environment. There are several general categories:
Open Indoor Areas
Open office areas with no partitioning and no obstacles between the Access Point
and the workstation.
The suggested maximum distance between a standard Access Point (LW0050A)
and a workstation is 600 ft. (200 m).
Semi-Open Indoor Areas
Open-plan offices partitioned into individual workspaces, factory floors,
warehouses, etc.
The suggested maximum distance between a standard Access Point and a
workstation is 300 ft. (100 m).
90
Table 5-1. Signal Loss Chart
Additional
Loss (dB)
0 dB
3 dB
5 to 8 dB
5 to 8 dB
10 dB
15 to 20 dB
20 to 25 dB
15 to 20 dB
20 to 25 dB
Effective Approximate
Range
100% 1000 ft. (300 m)
70% 700 ft. (215 m)
50% 500 ft. (150 m)
50% 500 ft. (150 m)
30% 300 ft. (100 m)
15% 150 ft. (50 m)
10% 100 ft. (30 m)
15% 150 ft. (50 m)
10% 100 ft. (30 m)
Range