Comtech EF Data M&C Software for Windows - Manual (Page 37)

Monitor and Control Software for Windows Revision 4
Troubleshooting MN/M-CWIN.IOM
3–3
3.3 Communication with Redundant Systems
All non-KST-2000A/B redundant systems serviced by the application use a branch
approach in their system communications: i.e., the user communicates to the system
through a single point (the redundant controller); the single point then provides
communication branching to the remaining equipment (the two RFTs).
This architecture mandates that the application must first be able to communicate to the
redundant controller before it can provide the desired M&C functions for the two RFTs.
Therefore, when dealing with this type of redundant system and a communication link
error is evident, focus on the link between the PC and the RSU-503 first.
An example of this type of system is outlined in Figure 3-1.
Laptop computer
RSU-503
RFT-xxx RFT-xxx
Figure 3-1. Non-KST-2000A/B Redundant System
Hierarchy