Appendix b – GAI-Tronics GC-AC1 EZ Page Industrial Intercom User Manual
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Pub. 42004-307G
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Appendix B
Interfacing EZ Page Stations to Model 400-001 RigCom Stations
The EZ Page and Model 400-001 stations are designed to operate either in balanced or unbalanced
systems. An unbalanced system for communication uses the negative of the audio pair as the ground
reference for the control signal. In the balanced system, the audio pair is not ground referenced and the
control signal requires a ground signal.
For interoperability between the Model 400-001 and the EZ Page Series, configure the 400-001 and the
EZ Page identically, balanced or unbalanced, by the location of P5 on the EZ Page and P3 on the Model
400-001.
The following wiring diagrams are for the different configurations for RigCom/EZ Page systems.
Figure 11. Master/Slave Unbalanced Configuration with Model 400-001 Master
Figure 12. Master/Slave Unbalanced Configuration with Model 400-001 as Slave