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1. Ethernet 4-7
Network Communications
• Transceiver
Use the transceiver equipped with the SQE TEST function. (SQE TEST: Signal Quality
Error Test)
Recommended transceiver
* The I/F unit may be broken if the AUI connector is subject to strong force. Use the AUI
cable when connecting the transceiver.
* When the power lamp of the transceiver is not turned on, check the wiring of 12 VDC
power supply, then replace the fuse (refer to page 4-4) of the I/F unit CU-03. For the
replacement procedure, refer to the manual “CU-03 OPERATING INSTRUCTIONS,”
attached to CU-03.
Manufacturer Type
Allied Telesis CentreCOM 107
CU-03
V7
PLC
PLC
Maximum segments: 5
Maximum network distance: 925 m
Maximum network nodes: 100 sets
Ethernet
unit
1 segment (max. 185 m, max. 30 nodes)
AUI cable
(max. 50 m)
Transceiver
*2
Term in ato r
T-type connector
Node
Node
*1
Repeater
Minimum node interval
0.5 m
To extend the segment distance
or increase the number of
nodes, use repeaters.
*1 The unit may have a built-in transceiver.
Refer to the instruction manual for the unit.
*2 12 V power supply is required for each transceiver.
Ethernet
unit
*1