JTS CS-120 Series, Manual, Page: 8 / 56

3
B.External Functions
2-1 Control Unit (CU)
CU is the core of the whole conference system. It provides electric power for all
conference units and connects hardware with software. CU can operate basic
conference management without personal computer in independent operation
mode. A CU can connect with 90 conference units (with LCD).
When a system needs more conference units:
●
Add extension unit (EXU). An EXU can provide electric power for 90
conference units. A CU plus many EXUs system can control a maximum of
254 conference units.
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