Technical FAQs — Engineering-Level Clarifications

1. What is the main function of the IC697CBL803 cable?
   It connects redundancy and rack communication modules in Series 90-70 systems.
2. Where is it typically used?
   In redundant PLC systems and multi-rack GE Fanuc architectures.
3. Does it include termination?
   Yes, it has built-in termination for signal stabilization.
4. What is its typical length?
   Approximately 3 feet (about 1 meter).
5. What modules does it connect?
   Bus Transmitter Modules and Redundancy Communication Modules (RCM).
6. Is it required for normal PLC operation?
   No, it is specifically required for redundancy and expansion setups.
7. Can it be replaced while the system is running?
   In redundancy configurations, it supports maintenance-friendly replacement procedures.
8. What is its main role in redundancy systems?
   It ensures synchronized communication between primary and backup racks.
9. Is it still used in modern systems?
   It is mainly used in legacy GE Series 90-70 installations.
10. Why is termination important in this cable?
    It prevents signal reflection and maintains communication stability.