User's Manual

APPLICANT: MOTOROLA EQUIPMENT TYPE: ABZ89FC5812
User / Operational Manual
Functional Description / Operation of Modules and Interconnect (Draft)
EXHIBIT D1-6
5. The Distribution Board provides the following functionality:
- Provides for RF routing from the Driver Amplifier to the Final Amplifier
- Provides for RF routing from the Final Amplifier to the Output Module
- Provides for DC power routing from the Core Board to the Output Module
- Provides for DC power routing from the Power Converter Board to the Final Amplifier
- Provides for Forward and Reverse Power routing from the Output Module to the Core Board
- Provides for feedback power coupling to the Core Board
- Routes module control from the Core Board to the Final Module
- Routes diagnostics from the Final Module to the Core Board
6. The Output Module provides the following functionality:
- Provides output isolation to the PA
- Provides for harmonic attenuation
- Provides for forward and reverse power detection
Power Supply Module Overview
The power supply module operates from either an AC or DC input and provides the DC operating voltages for the
other Base Radio modules. These modules are sometimes also referred to as field replaceable units (FRU).
When operating from an AC source (90 to 264 VAC, 47 to 63 Hz), the supply generates two DC output voltages of
28.94 Volts with reference to output ground. The power supply automatically adjusts to AC input ranges and
supplies a steady output. In AC mode, the power supply contains a separate battery charger which can be used to
maintain the charge on a 48 Volt DC nominal system, positive or negative ground (if installed).
When operating from a DC source (43 VDC to 60 VDC, positive or negative ground), the supply generates two DC
output voltages of 28.94 Volts with reference to output ground. The battery charger is not useable when operating
from a DC input power source.
When both AC and DC sources are available, the power supply operates from the AC source. When the AC
source is lost, the power supply automatically shifts to DC operating mode. When the AC source is restored, the
power supply automatically shifts to AC operating mode.
The power supply contains several switching-type power supply circuits, power factor correction circuitry, battery
charging circuitry, diagnostics and monitoring circuitry.
The power supply module interconnects to the chassis backplane using a multi-pin power connector. Two Torx
screws on the front panel of the power supply module secure it in the chassis.