Preface, About this manual, Conventions and references – Comtech EF Data CDM-570A User Manual
Page 27: Patents and trademarks

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PREFACE
About this Manual
This manual provides installation and operation information for the Comtech EF Data
CDM-570AL, CDMR-570AL, and CDM-570A Satellite Modems with or without the optional High-
Performance Packet Processor. These modems are essentially identical in their operation, with
these differences:
• The L-Band unit, available in standard (CDM-570AL) and reduced chassis depth
(CDMR-570AL) versions, includes support for externally connected Block Up Converters
(BUCs) and Low-Noise Block Down Converters (LNBs).
• The CDM-570A 70/140MHz IF band unit includes support for externally connected Comtech
EF Data Transceivers (CSAT-5060, KST-2000A/B);
Unless otherwise specified, these products are referred to collectively throughout this
manual as “the modem”. When equipped with the optional High-Performance Packet
Processor, the modem may also be referred to as the CDM-570A-IP or
This is an informational document intended for the persons responsible for the operation and
maintenance of the modem.
CDM-570AL-IP.
Conventions and References
Patents and Trademarks
See all of Comtech EF Data's Patents and Patents Pending at
Comtech EF Data acknowledges that all trademarks are the property of the trademark owners.
• DoubleTalk® is licensed from “Raytheon Applied Signal Technology”.
• DoubleTalk® is a registered trademark of “Raytheon Applied Signal Technology”.
• Carrier-in-Carrier® is a registered trademark of Comtech EF Data.