GAI-Tronics 400-001 RigCom Stations - Manual (Page 17)

Pub. 42004-376C
Model 400-001 and 400-002NS RigCom Stations Page 17 of 22
e:\standard ioms - current release\42004 instr. manuals\42004-376c.doc
04/14
Appendix A
Interfacing a Model 400-001 RigCom Station to a MS39 xx RigCom
Station System
The Model 400-001 RigCom Station is designed to operate as a field replacement or system addition to
the MS39xx RigCom Stations.
The MS39xx uses an unbalanced system for communication and uses the negative of the audio pair as the
ground reference for the control signal. The Model 400-001 has the ability to operate unbalanced or
balanced. 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 MS39xx Series, configure the Model 400-001 for
an unbalanced system by placing the jumper for P3 in the UNBAL position. No changes are required to
the MS39xx Series. For Master/Slave operation, connect AUDIO– to AUDIO (WH), AUDIO+ to
AUDIO (BLK) and EXT CONT+ to KEY. For common line only the audio wires require connection.
The following wiring diagrams are for the different configurations for a RigCom system.
Figure 10. Master/Slave Configuration with the Model 400-001 as Master