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Maximum number of connections for each terminal/each CU in Standalone mode
Maximum number of terminal
connections in a DU CHAIN
A
B
C
D
Total
Daisy Chain
50
50
50
50
100*
Ring
50
50
100
* The maximum number of units that can be connected is up to 100 units to each terminal on the DU CHAIN by using the EXT.
* IUs consume more power than DUs, so the number of units shown in the table cannot be connected. If you connect that many, it may damage the
CUs or the EXTs.
Refer to the “Relationship of the LAN cable length, number of units connected and number of EXTs required” tables on (
➤
regarding the number of IUs that can be connected.
Maximum number of connections for each terminal/each CU when using 3 CU links
ATUC-50CU Primary
ATUC-50CU Extension *max 2pcs
System
Total
Maximum number of
terminal connections
in a DU CHAIN
Maximum number of terminal
connections in a DU CHAIN
A
B
Total
A
B
Total
CU x 2
Total
Daisy Chain
50
50
100
50
50
100
200
300
Ring
50
50
50
50
100
150
NOTICE
• Up to 6 INTs can be connected to the primary CU.
