Cambium Networks PMP/PTP 450i Series, Руководство пользователя

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Chapter 2: System hardware GPS synchronization
Page 2-46
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Ethernet signaling.
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power to as many as 8 co-located modules—APs, BHMs, or BHSs. Through a browser interface to the
managed switch, ports can be powered or not.
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sync to APs and BHMs. The CMM3 receives 1-pulse per second timing information from Global Positioning
System (GPS) satellites through an antenna (included) and passes the timing pulse embedded in the 24-V
power to the connected modules. GPS status information is available at the CMM3, however
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CMM3 provides time and date information to BHMs and APs if both the CMMmicro is operating on
CMMmicro Release 2.1 or later and the AP/BHM is operating on System Release 4.2 or later. See
Configuring time settings on Page 7-18 .
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CMM3 does not provide time and date information to BHMs and APs if either the CMM3 is operating on a
release earlier than CMMmicro Release 2.1 or the AP/BHM is operating on a release earlier than System
Release 4.2.
A CMM3/CMMicro is shown in Figure 24 and Figure 25 .
Figure 24 CMM3 Figure 25 Pole mounted CMM3