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Functional description, 2 functional description, Figure 1-3. m&c block diagram – Comtech EF Data SNM-1001L User Manual

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SNM-1001L Satellite Modem

Revision 1

Introduction

MN/SNM1001L.IOM

1–12

1.8.2 Functional

Description

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)
• User Interface
• Fault and Alarm Relay

MODEM

11 MHz

CLOCK

I C BUS

2

RAM AND

REAL

TIME

CLOCK

ROM

(M&C,

BULK,

BOOT)

FAULT

AND ALARM

RELAYS

MICRO-

CONTROLLER

DAC

ADC

EIA-232

OR

EIA-485

9-PIN

REMOTE

Figure 1-3. M&C Block Diagram