PMP Synchronization Solutions User Guide CMM PlanningPMP-0297 007v001 (January, 2017) 3-11CMM PlanningThe following sections discuss Ethernet cabling, power, syncing two co-located CMMs together,and engineering and ordering cables.Typical Ethernet CablingPhysical connectivity and cabling of the CMM4 is variable and is done per the specificrequirements of a given installation. The following sections depict several variations for specificnetwork configurations. Based on these typical layouts, operators should design connectivity andcabling that best meets their site-specific needs.CMM4 models 1091HH and 1092HH do not contain an EtherWAN switch, and operators maysupply an external switch for Ethernet traffic management (such as switch-based VLAN, MAC-based trunking, port security, port mirroring, QoS, etc.). This external switch may be cabledsimilar to the EtherWAN switch in the diagrams below.Standard Ethernet Cabling ConfigurationFigure 6 and Figure 7 show the CMM4’s internal ports connected in a standard cablingconfiguration. In this configuration there are four Ethernet connections to radios and oneconnection to a terrestrial feed. The four Ethernet ports that are powered (indicated by a red lightfor 29V or a green light for 56V) were configured using the CMM4 configuration web page. TheEthernet connection to the terrestrial feed is not powered (no red or green light). An Ethernetcable connects the controller board management port to the EtherWAN switch. Four of the eightEthernet ports to radios are shown as unpowered and unused in this configuration. Local accessduring local maintenance could be gained by connecting an Ethernet cable from a local computerto any of the unpowered ports or to an unused port on the EtherWAN switch.
