5 Installation
5-40
CJ2 CPU Unit Hardware User’s Manual
The following standards and specifications apply to the connectors for the Ethernet twisted-pair cable.
• Electrical specifications: Conform to IEEE802.3 standards.
• Connector structure: RJ45 8-pin Modular Connector (Conforms to ISO 8877)
Precautions for Correct UsePrecautions for Correct Use
• Turn OFF the PLC's power supply before connecting or disconnecting twisted-pair cable.
• Allow enough space for the bending radius of the twisted-pair cable as shown in below.
1 Lay the twisted-pair cable.
2 Connect the cable to the Ethernet switch. Be sure to press in the cable until it locks into place.
Ethernet Connectors
Connector pin Signal name Abbr. Signal direction
1 Transmission data + TD+ Output
2 Transmission data − TD− Output
3 Reception data + RD+ Input
4 Not used. --- ---
5 Not used. --- ---
6 Reception data − RD− Input
7 Not used. --- ---
8 Not used. --- ---
Hood Frame ground FG ---
Connecting the Cable
35 mm
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