Chapter 2: System hardware
Power supply units (PSU)
Page 2-12
Power supply units (PSU)
PSU description
The PSU is an indoor unit that is connected to the ODU and network terminating equipment
using Cat5e cable with RJ45 connectors. It is also plugged into an AC or DC power supply so
that it can inject Power over Ethernet (POE) into the ODU.
Choose one of the following PSUs:
•
The AC Power Injector 56V (
) supplies a single ODU, accepts an AC input supply
only. The AC Power Injector 56V is approved for use only with the 4.9 GHz to 6.05 GHz
frequency variant of the ODU.
•
The AC+DC Enhanced Power Injector 56V (
) supplies a single ODU, accepts both
AC and DC input, tolerates a greater temperature range, and allows the ODU to support a
device on the Aux port, such as a video camera or wireless access point. It also allows the
ODU to provide DC power output. The AC+DC Power Injector 56V is approved for use with
the 4.8 GHz to 5.9 GHz, and 4.9 GHz to 6.05 GHz frequency variants of the ODU.
•
The Cluster Management Module (CMM5) (
) is a modular
system that powers ODUs and distributes a synchronization signal to TDD Master ODUs.
CMM5 consists of the following components:
o
CMM5 Power and Sync Injector 56 Volts: Each Injector supplies power to up to four PTP
670 ODUs and operates from a 48 V DC input.
o
Optional 240 W Power Supply: An AC/DC converter with 48 V DC output. The 240 W
variant supplies power for up to four PTP 670 ODUs. Use one Power Supply for each
Power and Sync Injector.
o
Optional CMM5 Controller Module: The Controller Module is used to monitor and
configure a CMM5 system consisting of one or more Power and Sync Injectors,
associated Power Supplies and a UGPS receiver.
o
Optional Universal GPS (UGPS): An outdoor GPS receiver optimized for
synchronization. One UGPS can synchronize several Power and Sync Injectors.
Note
The CMM5 Power and Sync Injector is also available with a 29 V output. This variant is
not suitable for use with PTP 670.
