Cambium Networks PMP 430 Series, User Manual

Page: 109 / 132

Chapter 2: System hardware GPS synchronization
Page 2-45
CMM4 (Cabinet with switch)
Designed to deliver consistent and reliable wireless broadband service, the PMP/PTP system gracefully scales to
support large deployments. The cluster management module is the heart of the system’s synchronization
capability which allows network operators to re-use frequencies and add capacity while ensuring consistency in
the quality of service to customers. As a result, subscribers can experience carrier-grade service even at the outer
edge of the network. Figure 23 CMM4 (Cabinet with switch)
CMM4 (Cabinet without switch)
This CMM includes all of the functionality listed above but there is no switch. This provides the network operator
the flexibility to use the switch of their choice with the power and synchronization capabilities of the CMM4.
CMM3/CMMmicro
The CMM3 or CMMmicro (Cluster Management Module micro) provides power, GPS timing, and networking
connections for an AP cluster. The CMM3 is configurable through a web interface.
The CMM3 contains an 8-port managed switch that supports Power over Ethernet (PoE
1 ) on each port and
connects any combination of APs, BHMs, BHSs, or Ethernet feed. The Cambium fixed wireless broadband IP
networks PoE
differs from IEEE Standard 803.3af PoE, and the two should not be intermixed. The CMM3 can auto-
negotiate speed to match inputs that are either 100Base-TX or 10Base-T, and either full duplex or half duplex,
where the connected device is set to autonegotiate. Alternatively, these parameters are settable.
A CMM3 requires only one cable, terminating in an RJ-45 connector, for each connected module to distribute
1
This is cambium PoE, not the standard PoE.