Citizen PPU PPU-700 User Manual page 26

(8) Paper slot
(9) Power switch
(10) Power connector
(11) Interface connectors
(8) Paper slot
(9) Power switch
Switch to turn ON/OFF presenter power.
(10) Power connector
Connector for power supply from outside.
(11) Interface connectors
Connects the interface cable for communication. Serial, parallel, and USB
connectors are provided.
(12) Control box
Control board is contained.
(13) Buzzer
Located on the control board and sounds at the occurrence of error, etc.
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(12) Control box