Chapter 2: System hardware
GPS synchronization
Page 2-42
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 20 CMM4 (Rack Mount)
The CMM4 has two DC power inputs, one 29 V and one 56V. It can be used to power and synchronize both 29V
legacy products such as the PMP 450 and 56V products such as the PMP 450i simultaneously.
If the 29V legacy products are connected to the CMM4, a 29V power supply needs to be connected.
If PMP/PTP 450/450i are connected to the CMM4, a 56V power supply needs to be connected.. The CMM4
supports having two of the 56V and two of the 24V supplies for redundancy.
PMP 450i requires different wiring between the CMM4 and device. If a PMP450 is replaced by a
PMP 450i and the existing drop cable needs to be re-used, the adapter "CMM4 56V power adapter,
#N000045L001A" must be used between the CMM4 and the existing drop cable.
Figure 21 CMM4 56V power adapter (dongle)
Содержание PMP/PTP 450i Series
Страница 31: ......
Страница 47: ...Chapter 1 Overview of the PMP PTP 450 platform Page 1 5 Connectorized Use with an external antenna...
Страница 55: ...Chapter 1 Product description Page 1 13...
Страница 100: ...Chapter 2 System hardware Cabling and lightning protection Page 2 36 Cambium description Cambium part number...
Страница 118: ...Chapter 3 System planning Typical deployment Page 3 2 Chapter 3 Figure 28 Wall installation...
Страница 119: ...System planning Typical deployment Page 3 3...
Страница 120: ...Chapter 3 System planning Typical deployment Figure Page 3 4 29 Roof installation...
Страница 121: ...Chapter 3 System planning Typical deployment Figure Page 3 5 30 GPS receiver wall installation...
Страница 122: ...Chapter 3 System planning Typical deployment Figure Page 3 6 31 GPS receiver tower or mast installation...
Страница 123: ...Chapter 3 System planning Typical deployment Figure Page 3 7...