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4.10 Non Line of Sight Operation
The ZEROWIRE® G2 System can maintain a wireless link with partial obstructions. However, best performance
is realized with a clear line-of-sight between units.
In an OR environment, the ceiling mounted boom system and its spring arm junctions, along with surgical
light heads, are large metal structures that can potentially block the wireless signals if they obstruct the line-
of-sight between the Transmitter and Receiver (see illustration below).
Preferably, surgical lights should be positioned out of the way or raised above the line-of-sight. If an object
must obstruct the line-of-sight, the best option is to position it half way between the Transmitter and the Re-
ceiver.
OR rooms whose walls and/or ceiling are constructed with metal sheets may reduce ZEROWIRE® G2 perform-
ance. This condition possibly can be mitigated by moving the Transmitter and Receiver closer to each other,
setting their line-of-sight to 0
°
(see Positioning and Orientation [}22]), and ensuring that there are no obstruc-
tions between the Transmitter and the Receiver.
Non-line-of-sight
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