Appendix c. theory of operation, C.1 controller ac power supplies – Comtech EF Data RC-1160 User Manual
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Theory of Operation
Revision 1
RC-1160 RC-1260 Redundancy Switch Controllers
MN-RC1160RC1260
C-1
Appendix C. Theory of Operation
C.1 Controller AC Power Supplies
The system is powered by primary and secondary 90 to 240 VAC applied at the rear of the controller unit.
Within the controller unit, both the AC HOT and RTN are interrupted by rear panel circuit breakers/switches.
The AC power supplies, of the international series, operate with input voltages between 90 and 240 VAC.
The unit contains a built-in EMI failure system approved by the FCC and VDE for class B operation and
approved for safety by UL, CSA, IEC, and VDE.
The output is derived by high efficiency 125 kHz switching techniques utilizing surface mount technology. Each
supply contains a green LED indicating output voltage is present, and a potentiometer for adjusting the output
between 13V and 16V.