User manual

9
Expanding the Control Stations All Function
The IFB ALL button on the Control Station causes all of the IFB buttons to be activated. The SA button is not activated. To
make the SA work with the IFB ALL button, add the following diodes.
Mono IFB
When the switches inside the 4010 Central Electronics are switched to the right, both left and right channels at the user station
will receive the interrupted program feed. See Figure 16.
Model Diode(s)
4001(M)
D25
4002(M)
D56, D61
4003(M)
D100, D105, D110
FIGURE 1. Power Connection to Series 4000 Control Stations