Chapter 1. Introduction; Figure 1-1. Cdm-710 Broadcast Satellite Modem (Shown With Different Keypads) - Comtech EF Data CDM-710 Installation And Operation Manual

Chapter 1. INTRODUCTION

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:
70/140 MHz:
L-Band:
Individual Modulator and Demodulator cards are available for the CDM-710 for operation at
either 70 /140 MHz and L-Band. The terrestrial data interfaces (Figure 1-2) are field removable to
allow different combinations of interface types:

Figure 1-1. CDM-710 Broadcast Satellite Modem (Shown with Different Keypads)

52 to 88 MHz and 104 to 176 MHz in 100 Hz resolution
950 to 1950 MHz in 100 Hz resolution
•
CDI-40 Duplex ASI Interface
•
CDI-70 1000 Base-T (GbE) Ethernet Interface
•
CDI-60 HSSI Interface
Initialed Released Units
Rev. A and later chassis
1–1