Unit-To-User Data Interface Connections And Examples; Rj-45 Gigabit Ethernet Data Interface Example - Comtech EF Data CRS-170A Installation And Operation Manual

CRS-170A L-Band 1:1 Redundancy Switch
Cables and Connections
4.3.4

Unit-to-User Data Interface Connections and Examples

In addition to the control and IF switch‐to‐unit cabling shown in the previous section, the
CDM‐840 features a 10/100/1000 Gigabit Ethernet data interface and a G.703 Unbalanced E1
data interface that is used with the CDM‐840's optional E1 Interface / RAN Optimization
Hardware / FAST Feature upgrade.
With the exception of the 10/100/1000 Gigabit Ethernet Interface configuration shown in Sect.
4.3.4.1, where user‐provided Ethernet cables and hub are used, one cable/component set per
1:1 unit pair is required for each user interface (see examples for specified quantities).
4.3.4.1

RJ-45 Gigabit Ethernet Data Interface Example

Figure 4‐18 shows the block diagram and a cabling example for a CDM‐840 1:1 configuration using
the RJ‐45 10/100/1000 Gigabit Ethernet port. Direct connection is made with user‐provided
Ethernet cables and a Layer 2 switche, so no cables or kit is required.
Figure 4-18. CDM-840 RJ-45 Gigabit Ethernet 1:1 Example
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