MRV Communications TERESCOPE TS800/155 - Manual (Page 32)

M R V C o m m u n i c a t i o n s , I n c . – I n s t a l l a t i o n M a n u a l
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Figure 2.8: Wall Mounting (using JMP and JMB) Figure 2.9: Wall Pedestal Mounting (using JMP and
MO54C)
Figure 2.10: Extended Wall Mounting (using JMP and
MO62C) Figure 2.11: Angle Bracket Mounting (using JMP and
M001)
Transmitting through a Window
1. Determine the number of surfaces the beam transits or is reflected
from, the reflectivity of each surface, and
condensation/precipitation collection areas.
2. Use the data below to determine whether the light beam
attenuation is acceptable.
4% attenuation for each surface of light
reflection.
15% attenuation for a double pane window.
Attenuation due to tint in windowpane must be
taken into consideration in choosing the right
TereScope model. (The % attenuation depends
on the tint and must be measured.)
3. Ensure that the angle of incidence 3 of the beam striking the
windowpane is between 1º and 45º.
Note
On high buildings, for indoor window installation, the user should consider
that occasionally the window-cleaning elevator might block the link beam.
2 Angle which the light beam makes with the perpendicular to the windowpane