Cambium Networks PMP 450 Series, Руководство по установке

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Chapter 2: System hardware 114
CMM4 ( Rack Mount )
The Cluster Management Module (CMM) is the heart of the Cambium system’s synchronization capability,
which allows network operators to reuse frequencies and add capacity while ensuring consistency in the
quality of service to customers.
For operators who prefer indoor CMM mounting, Cambium offers the Rack-Mounted Cluster Management
Module 4. The unit is designed to be mounted onto a standard 19-inch telecommunications rack and to
allow the Cambium CMM4 to be co-located with other telecommunications equipment.
Figure 44 :
CMM4 (Rack Mount)
The CMM4 has two DC power inputs, one 29 V and one 56 V. It can be used to power and synchronize both
29 V legacy products such as the PMP 450 Series and 56V products such as the PMP 450i Series
simultaneously.
If the 29 V legacy products are connected to the CMM4, a 29 V power supply needs to be connected.
If the 450i Series is connected to the CMM4, a 56 V power supply needs to be connected. The CMM4
supports having two of the 56 V and two of the 29 V supplies for redundancy.
Warning
PMP 450i Series requires different wiring between the CMM4 and device. If a PMP
450 Series ODU is replaced by a PMP 450i Series and the existing drop cable
needs to be re-used, the Ethernet cable adapter for CMM4 - N000045L001A"
must be used between the CMM4 and the existing drop cable.