Modem-To-User Data Interface Kit And Connection Examples - Comtech EF Data CRS-170A Installation And Operation Manual

CRS-170A L-Band 1:1 Redundancy Switch
Cables and Connections
4.7.2

Modem-to-User Data Interface Kit and Connection Examples

In addition to the control and IF switch-to-modem cabling shown in the previous section, a
number of data interface configuration kits are available for use with the CDM-710.
Figure 4-39. CDM-710 Block Diagram: User  Modem  Switch  Traffic
Figure 4-39 shows a block diagram typical for the kits shown in Sects. 4.6.2.1 and 4.6.2.2.
Separate cabling kits are needed for these CDM-710 data interfaces. For example, Sect. 4.6.2.1
identifies the interface kit used for the CDI-40 ASI Data Interface. With the exception of the CDI-70
Gigabit Ethernet Data Interface configuration shown in Sect. 4.6.2.3, where user-provided
Ethernet cables and Layer 2 Switch are used, one interface kit per 1:1 modem pair is required
for each user interface (see examples for specified quantities).
The data interface combinations allowable in Interface Slots 1 and 2 of the CDM-710 chassis are as
follows:
Allowable CDM-710 Combinations
Interface Slot 1
ASI (CDI-40)
HSSI (CDI-60)
None
Interface Slot 2
None
None
GbE (CDI-70)
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Revision 10
MN/CRS170A.IOM