User's Manual

1-24 PMP320HDW2v1
Preliminary
JUL
2010
PMP 320 Hardware Installation Cluster Management Module 4 (CMM4)
• Auto - negotiation on the Ethernet ports. P orts will auto - negotiate to match inputs that are
either 100Base - T or 10Base - T , and either full duplex or half duplex, when the connected
device is set to auto - negotiate. Alternativel y , these parameters are settable.
• An always - on NTP (Network Time Protocol) server that can provide date and time to any
radio that can reach the CMM’s management IP address.
Table 1-4 CMM4 Model Numbers and Ethernet Switch Configurations
CMM4 Model CMM4 Extended
EtherW
AN Switch
Number
Model Number
T otal Ports
10/100 Base
–TX Ports
10/100/1000
Base-TX Ports
Cable Glands (ports)
1090CK
1090CKBA (current
units)
1090CK AA (earlier
units)
14 12 2 7
9 8 1 4
1091 NA
No Switch
7
Inside the CMM4 enclosure is a controller board, an EtherWAN switch, and a GPS coax
surge suppressor . Also inside the CMM4 enclosure is the EtherWAN switch port. This
connection is where the Ethernet Gigabit connection is made. F or more information about
the EtherWAN switch and how the port is managed or for information on earlier versions
of the CMM4 units refer to the Cluster Management Module 4 User Guide located at:
.
http://motorola.wirelessbroadbandsupport.com/
The controller board injects power and synchronization on up to eight Ethernet ports and
provides the equivalent of 600S SD surge suppression on each of the eight ports. The controller
board is managed using a web browser , or SNM P , and is supported by the Prizm Element
Management
System (EMS). The controller board receives 30 VDC power and/or 56 VDC from
external power supplies, and provides 20 VDC power for the EtherWAN switch and other
auxiliary equipment. The controller board includes a GPS module, which provides sync and
GPS information to the CMM, a management port, an override toggle switch, and an auxiliary
sync port for connecting to another CMM.
NOTE
The controller board does not convert 30 VDC to 56 VDC or 56 VDC to 30 VDC . T o
power 56 VDC equipment from a CMM4 you must provide a 56 VDC power suppl y , and
to power 30 VDC equipment from a CMM4 you must provide a 30 VDC power suppl y .
The CMM4 requires a GPS antenna and a power suppl y . The directions for installing the power
supply
and the GPS are provided in Chapter 3 CMM4 Hardware Installation .