BSS Audio MSR-602/604II Owner's Manual - Manual (Page 21)

19
Channel Coding
In general the stage monitor console will be connected to the stage
mains power grounding system so the signal connecting cables to the
‘MON OUTPUT’ connector will require the earth connection to be
disconnected. That is, the cable screening will be derived from the
monitor console, but should not be connected to the electronic 0v
earthing system of the MSR-604 II via pin 1 of the connector. This
disconnection would be implemented either in the connector, or at the
monitor console multiway connector wiring point.
Other systems of earthing can be implemented, such as using the stage
earth as the main star point, in which case the system ground switch
would be set to ‘grounded’, or to use the stage monitor console as the
main star point.
In any system it is important to remember:
a) Choose one star point for all grounding.
b) Ensure all microphone screening is permanently held to this ground.
c) Ensure that the two main earthing systems, namely stage and front of
house, do not accidently short together.
d) Avoid sending signal currents along cable screens.
If these simple guide lines are followed, then implementation of the
MSR-600 system will be completed without any troublesome earthing
faults, and full safety will be implicit within the design.
In a system with more that one MSR-604 II unit, identifying which
channel of which MSR is the actual system channel will become
necessary, and the small pre-numbered self-adhesive labels supplied
with the MSR-604 II can be used for this purpose. Figure 9 shows the
fitting of these labels to the MSR-604 II front panel.
Fig. 9 Channel Coding
4.3 Channel
Coding