Renesas RL78/I1A User Manual page 6

Appearance of the board
Surface appearance (top view)
DC plug
for AC adaptor
Connector for DALI
Connector for
DMX512
USB connector
Surface appearance (back view)
Be careful to avoid burns.
Parts of the board, especially the area enclosed by a dotted line, become extremely hot.
Do not look directly at LEDs on this board.
Doing so may weaken eyesight.
Use this board with the LED mounting surface back.
Use a specified AC adapter.
Using an AC adapter other than that specified causes the product to fail, heat up, or catch fire, or
electric shock.
Warning
Analog volume switch
High brightness LED