ViewSonic LD216-251 Guide De Démarrage Rapide page 18

3. Repeat the above steps for the Middle and Left Cover.
RS232 USB USB USB HDMI HDMI HDMI AUDIO USB-B LAN
OUT 2 1 OUT STAND-BY INPUT BRIGHTNESS
4. Your display is now ready to power on.
RS232 USB USB USB HDMI OUT HDMI 2 HDMI 1 OUT AUDIO USB-B LAN
STAND-BY INPUT BRIGHTNESS
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