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Comtech EF Data CRS-180 User Manual

Page 101

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CRS-180 70/140 MHz IF 1:1 Redundancy Switch

MN/CRS180.IOM

Cables and Connections

Revision 11

5–41

5.6.2 Modem-to-User Data Interface Kit and Connection Examples

In addition to the basic Modem-to-Switch cabling shown previously, a number of data interface

configuration kits are available for use with the CDM-710 Broadcast Satellite Modem. Separate

cabling kits are needed for these CDM-710 data interfaces.

While different data interface cards may be installed into both Interface slots, only

one data interface type is operable at a given time. The data interface combinations

allowable in the CDM-710 chassis Interface Slots 1 and 2 are as follows:

Interface Slot 1

Interface Slot 2

ASI (CDI-40)

None

HSSI (CDI-60)

None

None

GbE (CDI-70)

5.6.2.1 Modem-to-User Non-IP Data Interface Kit and Connection

Examples

Figure 5-35. CDM-710 Block Diagram – UserModemSwitchTraffic

Figure 5-35 shows the block diagram typical for the kits shown in Sects. 5.6.2.1.1 and 5.6.2.1.2.

Separate cabling kits are needed for these CDM-710 data interfaces. For example, Sect.

5.6.2.1.1 identifies the interface kit used with the CDI-40 ASI Data Interface.

With the exception of the CDI-70 Gigabit Ethernet data interface configuration shown in Sect.

5.5.2.2, which uses user-provided Ethernet cables and Layer 2 Switch, you must use one

interface kit per 1:1 modem pair for each interface (see examples for specific quantities).