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NOTICE
• When connecting 50DUs/IUs, never exceed the number of connectable 50DUs/IUs and the connectable length. It may damage
the 50CU or the EXTs.
• Depending on the CU settings, you can also connect the DUs/IUs to the CU LINK terminals by configuring them as DU CHAIN
C/D terminals. However, if the number of the DUs connected to the DU CHAIN A/B terminals has not reached the maximum,
be sure to connect them to the DU CHAIN A/B terminals.
• The above table and notes are the same for the INT and 50DU. However, a maximum number of 6 INTs can be connected to one
system.
• The combinations shown above are representative examples. For other combinations, please inquire with our sales representative.
• The position in which to connect the EXTs should have the same number of 50DUs (A, B, and C in the following diagram)
between EXT-EXT as there are between 50CU-EXT connected to the 50CU 1 port.
For example, do the connections as follows for an L1 = 10 m, L2 = 1.5 m, and L3 = 10 m, with 50 units connected to a 1 port
daisy-chain connection.
ATUC-50DU
ATLK-EXT165
L1
L2
L2
L1
L3
L2
L2
L3
L3
L2
L2
A=17
B=17
C=16
ATUC-50CU
