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Chapter 4. modem and switch configuration, 1 overview, Chapter 4. modem – Comtech EF Data CRS-180 User Manual

Page 43: Switch configuration

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4–1

Chapter 4. MODEM

AND

SWITCH

CONFIGURATION

4.1 Overview

To avoid damage to either the modem pair or the CRS-180 switch, it is important that

you follow this sequence of configuration:

First, configure both modems for 1:1 redundant operation as directed in this chapter. This

chapter organizes the modem-specific sections and any specific interface configuration

examples as follows:

For Modem...

See Chapter Sect.

CDM-625/A

4.2

CDM-760 or CDM-750

4.3

CDM-570/A

4.4

CDM-710G, CDM-710, or CDM-700

4.5

Second, once you properly configure both modems for 1:1 redundant operation, set the

DIP switches on the CRS-180 to the correct modem selection. See Sect. 4.6 CRS-180 Switch

DIP Settings for details.

Third, once you properly configure both modems and the DIP switches, connect the

control and IF cables between the powered OFF modems and switch. See Chapter 5.

CABLES and CONNECTIONS for details.