User's Manual

APPLICANT: MOTOROLA EQUIPMENT TYPE: ABZ89FC5823
User / Operational Manual
Functional Description / Operation of Modules (Draft)
EXHIBIT D1-6
When operating from a DC source (43.2 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. Output is not interrupted when switching between AC
and DC sources.
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.
Power Supply Controls and Indicators
The power supply module has three front panel light emitting diode (LED) indicators:
1) ALARM: a RED LED that when illuminated indicates the power supply is no longer operating within its
design specifications
2) STATUS: a GREEN LED that when illuminated indicates the power supply is operating within its design
specifications
3) FAN: a RED LED that when illuminated indicates the power supply fan is no longer functioning per its
design specifications.
The front panel ON/OFF switch is used to enable or disable the DC outputs of the power supply module.