4.2.3 Bottom Interface Panel
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29. RS232
RS232 COM interface to connect to a central control device.
28. MIC IN
3.5 mm microphone input interface.
32. COAXIAL
S/PDIF (Sony/Philips Digital Interface) digital audio interface.
32. Line Out
3.5 mm line out to connect whiteboard to external speakers, amplifiers, or headphones.
33. HDMI Out
High definition audio and video output interface.
34. & 35. RJ45 IN/OUT
Network input/output interface to connect RJ45.
36. TF Card
Slot to insert external TransFlash storage card.
4.3 Remote Controller
The remote controller uses two AAA batteries.
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