Harris Atlas DVL400, Техническое руководство

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2/25/03 888-2473-001 1-9
WARNING: Disconnect primary power prior to servicing.
Section 1 Introduction
ATLAS Series™
1.2.4.1 Module Control
The primary method for control and monitoring of the PA Modules is by the serial
CAN (Controller Area Network) Bus. It is used for control, status and monitoring of
all PA Module parameters and for the reporting of Module faults. As a backup to
this serial control network, each PA Module has dedicated hardware control lines
for functions such as On, Off, Restart and RF Mute.
Figure 1-4 PA Module Block Diagram
1.2.5 Power Supplies
Up to four +32 Vdc power supplies are used to provide the DC voltage to the PA
modules within each PA cabinet. Each power supply provides power to two PA
modules. Module power supplies are designed to allow removal and insertion of one
unit while the remaining power supplies are operating. The control system in the PA
Cabinet is powered by a single low voltage power. A second (redundant) low
voltage power supply is optional.
AB
PHASE
&
GAIN
CONTROL
BOARD
SS RELAY
AB
AB
AB
AB
AB
AB
A
FWD
TEMP
Pin
+32V
BIAS
RF IN
TO MAIN CONTROLLER
SWITCHED
+32V
ON/OFF
MODULE ENABLE/DISABLE
32V
MON
RF
OUT
AB
AB
AB
Auto Biasing
Pre-driver
Driver A
Driver B
8
CURRENT
SENSING
Pallets
Pallet Combiner
Splitter
Splitter
BIAS
BIAS
3
12
RFL
CAN Bus