Hitachi CP-X2021WN Manuel D'utilisation page 237

F-1
・ On a horizontal surface
F-3
LAN
AC IN
20
Computer
HDMI
USB
USB
TYPE B
TYPE A
DC5V 0.5A
AUDIO OUT MONITOR OUT
F-2
・ Suspended from the ceiling
COMPUTER IN1 COMPUTER IN2
S-VIDEO
VIDEO
CONTROL
AUDIO IN1
AUDIO IN2