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CRS-180 70/140 MHz IF 1:1 Redundancy Switch
Cables and Connections
4.7.2
Modem-to-User Data Interface Kit and Connection Examples
In addition to the basic switch‐to‐modem cabling shown in the previous section, a number of
data interface configuration kits are available for use with the CDM‐710G.
Figure 4-39. CDM-710G Block Diagram: User
Figure 4‐39 shows a block diagram typical for the kits shown in Sects. 4.7.2.1 and Sect. 4.7.2.2.
Separate cabling kits are needed for these CDM‐710G data interfaces. For example, Sect. 4.7.2.1
identifies the interface kit used for the CDI‐10‐1 Single G.703 Data Interface. With the exception of
the CDI‐70 Gigabit Ethernet Data Interface configuration shown in Sect. 4.7.2.3, where user‐provided
Ethernet cables and Layer 2 Switch are used, one interface kit per 1:1 modem pair is required for
each interface (see examples for specified quantities).
The data interface combinations allowable in Interface Slots 1 and 2 of the CDM‐710G chassis are
as follows:
Allowable CDM-710G Combinations
Interface Slot 1
Single G.703 (CDI-10-1)
HSSI (CDI-60)
None
Interface Slot 2
None
None
GigE (CDI-70)
4–45
MN/CRS180.IOM
Modem
Switch
Revision 8
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