Main Unit Block Diagram - Optimus EDC-1000 SERIES Installation And Operating Instructions Manual

EDC-1000 SERIES
Conference System
(13) Conference power expansion unit DC power input terminal. could connect up to 75 units
(14) SPEAKER 8Ω: built-in 40W×2 amplifier, low resistance 8 Ω speaker signal output terminal.
(15) AC 110V/220 V 50/60 Hz: input voltage selection switch.
(16) AC 110V/220 V power input socket: Equip AC overload protection fuse, one protection fuse
and one stand by fuse（AC 8 A）under the socket.
(17) Conference main control unit DC power fuse seat（DC 8 A)
(18) EXPAND POWER (disabled)

3.3. Main unit block diagram

EDC-1000 Version 1.2 Page 8 of 19