Comtech EF Data CDM-710L Spezifikationen Seite 27

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1–1
Chapter 1. INTRODUCTION
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)
52 to 88 MHz and 104 to 176 MHz in 100 Hz resolution.
CDM-710L (L-Band)
950 to 2000 MHz in 100 Hz resolution.
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)
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