Cambium Networks PMP 450 AP, Планирование и руководство по установке

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Chapter 3: System planning Remote AP Deployment
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3-60
Passing Sync signal
Passing Sync in a Single Hop
Network sync can be passed in a single hop in the following network designs:
• Design 1
o
A CMM provides sync to a co-located AP.
o
This AP sends the sync over the air to SMs.
• Design 2
o
A CMM provides sync to a co-located BH timing master.
o
This BH timing master sends the sync over the air to a BH timing slave.
Passing Sync in an Additional Hop
Network sync can be extended by one additional link in any of the following network designs:
Note
In each of these following designs, Link 2 is not on the same frequency band as Link 4. (For
example, Link 2 may be a 5.2 GHz link while Link 4 is a 5.7 or 2.4 GHz link.)
•
Design 3
o
A CMM provides sync to a co-located AP.
o
This AP sends the sync over the air to an SM.
o
This SM delivers the sync to a co-located AP.
o
This AP passes the sync in the additional link over the air to SMs.
This design is illustrated in Figure 66 .
Figure 66 Additional link to extend network sync, Design 3