Chapter 1. Introduction; Overview; Figure 1-1. Cdm-710 Broadcast Satellite Modem (Original And Current Production Units) - Comtech EF Data CDM-710 Installation And Operation Manual

1.1

Overview

The CDM-710 Broadcast Satellite Modem (Figure 1-1) is a high symbol/bit-rate unit, intended
for operation in broadcast and enterprise applications. It operates over satellite links at
symbol/data rates up to 45 Msps. Various modulations and coding combinations compliant with
DVB-S, DVB-DSNG and DVB-S2 are provided.
The operating frequency of the CDM-710 is available in the following versions:
CDM-710 (70/140 MHz)
CDM-710L (L-Band)
Individual Modulator and Demodulator cards are available for the CDM-710 for operation at
either 70 /140 MHz or L-Band. The terrestrial data interfaces, as depicted in the block diagram
shown in Figure 1-2, are field removable to allow different interface types:
•
CDI-40 Duplex ASI Interface
•
CDI-60 HSSI Interface
•
CDI-70 1000 Base-T Gigabit Ethernet (GbE) Ethernet Interface

Figure 1-1. CDM-710 Broadcast Satellite Modem (Original and Current Production Units)

Chapter 1. INTRODUCTION

52 to 88 MHz and 104 to 176 MHz in 100 Hz resolution.
950 to 2000 MHz in 100 Hz resolution.
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