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SLM-3650 Satellite Modem
Theory of Operation
4.1.1
Theory of Operation
The M&C card is composed of the following subsections:
•
Microcontroller with Universal Asynchronous Receiver/Transmitter (UART)
•
Digital-to-Analog Converter (DAC)
•
Read Only Memory (ROM)
•
Analog-to-Digital Converter (ADC)
•
Read Access Memory (RAM)
•
Universal ASYNC
•
User Interface
•
Fault and Alarm Relays
MODEM
11 MHz
CLOCK
DAC
ADC
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MICRO-
CONTROLLER
I C BUS
2
EIA-232
OR
EIA-485
Figure 4-1. M&C Block Diagram
4–2
MN/SLM3650.IOM
FAULT
AND ALARM
RELAYS
ROM
(M&C,
BULK,
BOOT)
RAM AND
REAL
TIME
CLOCK
9-PIN
REMOTE
Revision 3
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