CDM-570A/570AL Satellite Modem with Optional Packet Processor
Revision 5
Introduction 1–1 MN-CDM570A
Chapter 1. INTRODUCTION
1.1 Overview
Unless otherwise specified, these products are collectively referred to
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
, CDM-570AL-IP, CDMR-570AL-IP, or simply the CDM-IP.
Figure 1-1. CDM-570A and CDM-570AL Satellite Modems
Comtech EF Data’s CDM-570AL and CDMR-570AL Satellite Modems are intended for L-Band
closed network applications. The CDM-570A Satellite Modem is the 70/140 MHz version of the
same modem. Either frequency version serves as a drop-in replacement for the CDM-
570L/CDMR-570L (L-Band) or CDM-570 (70/140 MHz) Satellite Modems. Apart from the IF
frequency band, the modems are essentially identical. The modem is 100% backwards
compatible with its predecessors, but incorporates new features and expansion capabilities.
1.1.1 Modem Features Overview
• The CDM-570AL provides an L-Band IF frequency range from 950 to 2250 MHz.
• The CDM-570A provides a 70/140 MHz IF frequency range from 50 to 90 MHz and 100
to 180 MHz.
• The CDM-570AL consumes only 29 Watts (typical, without any option cards).