Communications Installation - Connecting the HC900 Controller to a PC with the Designer Software 
Revision 19   HC900 Process Controller Installation and User Guide  135 
06/14 
Connecting C75 Redundant Ethernet to a PC with HC Designer or other applications 
Only use Shielded CAT 5 cable IO for network connections. See Figure 74 and Table 20. 
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Figure 74 – Redundant Networks (see Table 20) 
 
ATTENTION: 
Always observe the wiring/cabling guidelines on page 45.