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58
Figure 3-9
Connecting CSU and User PC by an Ethernet Cable though POE Injector
Mounting Tips
• Verify the Line-of-Sight -- Before installing CSU, make sure a clear line-of-
sight exists. Line of sight (LOS) can be defined as each antenna clearly seeing
the other antenna, and seeing the remote locations when viewing from the
central base location. Be sure to look level with the center of origin of the
transmission (i.e., the middle of the antenna). Repeat this procedure from the
remote location. Any disruption of the signal path due to trees, buildings, or
any other obstructions may cause the link to function incorrectly. If you see
any obstructions between two antennas, move one or both antennas to another
location.
• Use mounting hardware provided to secure the unit to the pole.
• Leave the unit mounting loose enough to allow for movement when performing
the alignment/testing procedure. The unit should be tightened only after the
alignment/testing procedure is completed.
• Install the unit away from microwave ovens and 2.4 GHz cordless phones.
Microwave ovens and some cordless phones operate on the same frequency as
the unit and can cause signal interference.
• Begin at the lowest point, so the tape overlaps from bottom to top creating a
shingled effect. This creates an effective barrier against water runoff. Apply
this "shingle effect" to each layer of the sealing process. Apply two layers of
electrical tape to the connector, and leave approximately 3 inches of cable
exposed on either side of the connector.
WLAN Cable Access Point 6220
NTPM99CA 01 Rel 1.0 Issue 3 Dec 2004
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