7/26/05
888-2523-001
4-3
WARNING: Disconnect primary power prior to servicing.
Section 4 Theory of Operation
ATLAS Analogue
Figure 4-1 Control System Simplified Block Diagram
NOTE:
eCDi™ is an optional Transmitter Network Interface appliance that provides
completely comprehensive remote control and monitoring of every data point
within the transmitter. It includes an SNMP (Simple Network Management Pro-
tocol) manager, and allows integration with most Control Systems via the Inter-
net or LAN.
4.3.1
Micro Module
All of the control boards in the transmitter use the 376 Micro Module. The micro
module is a daughter board with a standardized interface which is plugged into a
motherboard. It contains Flash memory for storage of its programming and SRAM for
program execution. The programming in the flash memory can be re-programmed or
upgraded using In-System Programming or ISP (no hardware needs to be changed) via
serial connection. In general the micro modules are responsible for control, monitoring
and reporting, but have very little to do with transmitter protection which is handled
mainly by the CPLDs (see "4.3.2 CPLD, Complex Programmable Logic Device" on
page 4-4).
Ext
I/O
Board
Main
Controller
&
Life Support
Web Browser
Internet Access
TCP/IP
Modem or
Direct Computer
Connection
Ext Interlocks
Control
Metering
Status
RS-232
Remote Control
Pump Control Bus
to Pump Control Module
DCE
DTE
Exciter A
Exciter B
(Optional)
RS-485
RS-485
TVS-D660
Configuration
and Operation
Software
R
S
-2
32
or
RF Control Unit
RF Monitor
Backplane Interface
Board
C
ont
ro
l B
u
s
To PA
Modules
Coolant Sensors
MOV Board
Power Block
Controller
RF Samples
RF DRIVE
Low Voltage Supplies
Graphical User Interface
Ethernet
Standard
Parallel
Remote Control
Local Pushbutton Controls
Remo
te
GUI
Et
h
e
rn
e
t
Ext
I/O
Board
Main
Controller
&
Life Support
Web Browser
Internet Access
TCP/IP
Modem or
Direct Computer
Connection
Ext Interlocks
Control
Metering
Status
RS-232
Remote Control
Pump Control Bus
to Pump Control Module
DCE
DTE
Exciter A
Exciter B
(Optional)
RS-485
RS-485
TVS-D660
Configuration
and Operation
Software
R
S
-2
32
or
RF Control Unit
RF Monitor
Backplane Interface
Board
C
ont
ro
l B
u
s
To PA
Modules
Coolant Sensors
MOV Board
Power Block
Controller
RF Samples
RF DRIVE
Low Voltage Supplies
Graphical User Interface
Ethernet
Standard
Parallel
Remote Control
Local Pushbutton Controls
Remo
te
GUI
Et
h
e
rn
e
t
Summary of Contents for ATLAS ANALOGUE
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