Motorola MTR2000 T5544 Instruction / Field Service Manual page 266

1
DESCRIPTION
The DLN6624 Power Supply Module is described in this section. This Power Supply is used on low power
(i.e.,30/40 W) stations. A general description, identification of inputs and outputs, a functional block diagram,
and functional theory of operation are provided. The information provided is sufficient to give service personnel
a functional understanding of the module, allowing maintenance and troubleshooting to the module level. (Refer
also to the Maintenance and Troubleshooting section of this manual for detailed troubleshooting procedures for
all modules in the station.)
General Description
Note
Motorola Inc., 2006
All Rights Reserved
Printed in U.S.A.
POWER SUPPLY MODULE
(250 W, 50/60 Hz, 85 to 264 Vac Input
The DLN6624 Power Supply Module accepts an ac or a dc input (85 to
264 Vac, 50/60 Hz, dc input = 10.8 to 16 Vdc) and generates two output dc
voltages to power the station modules: +5.1 Vdc and +14.2 Vdc.
When used in dc input mode the 14.2 Vdc output is determined by the dc
input minus 0.5 Vdc.
The power supply is a high-frequency switched mode design, all con-
tained in a metal heatsink, mounted on the left-hand side of the station.
The design provides for over-voltage/over-current protection.
The ac input connection is made at the rear of the station via an IEC-type
connector keyed to accept only high temperature type mating connectors.
Also provided is a Battery Backup connection (see dc mode above). Power
supply cooling is provided by natural convection via the heatsink which
is coplanar with the power supply circuit board assembly.
An external battery charger system is required to support the battery
backup feature.
Government & Enterprise Mobility Solutions
1301 E. Algonquin Road, Schaumburg, IL 60196
MODEL DLN6624
or 10.8 to 16 Vdc Input)
68P81011Y29-O
03/10/06-UP