Connection Of Extension Unit (Exu) And Control Unit (Cu) - JTS CS-120 Series Manual

3-2 Connection of Extension Unit (EXU) and Control Unit (CU)

CU is the core of the whole conference system. CU provides power for
all conference units. As a result, the number of units connecting with CU
is associated with CU's ability to provide and control power. When there
are more conference units, or most conference units need long-distance
connection, CU needs to connect with EXU to increase the number of
conference units in the system. An EXU can provide power for 90 conference
units (with LCD). A CU and many EXUs can control a maximum of 254
conference units.
For longer distance between conference units and CU/EXU. One end of
the cable is equipped with 7P-DIN male connector, and the other end is
equipped with 7P-DIN female connector. Connect the female connector with
conference units, and connect the male connector with CU output. Adopting
extension cable will decrease the number of connectable conference units.
The number of connectable conference units of every 7P-DIN adaptor is
showed in Table 3-1.
CS-120EXU
DELEGATES / CHAIRMAN
D7120-XX
7-pin extension cord
CS-120CU
Connect with a
maximum of 90
conference units
with LCDs
D7120-XX
7-pin extension cord
Each output terminal can connect with a maximum of 30 conference units
with LCDs
Router
CU connects with PC through a
router or hub
PC
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