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5.4.2 Interface Cable Connection
(1) Unplug the AC adapter of the CU-200 from the wall socket.
(2) Make sure that the host PC is turned off.
(3) CU-201: Connect the RS-232C interface cable to the interface port of the CU-201.
CU-221: Connect the USB interface cable to the interface port of the CU-221.
(4) Connect the other end of the RS-232C/USB interface cable to the corresponding port of the host PC.
TIP: The CU-221 can be connected via a USB hub to the host PC.
Interface cable
CU-201: RS-232C
CU-221: USB