Omron CP1H CPU Operation Manual page 568

Installation and Initial Setup
Hub Installation
Environment Precautions
Hub Connection Methods
Ethernet Connectors
Connecting the Cable
!Caution Turn OFF the PLC's power supply before connection or disconnecting twisted-
!Caution Allow enough space for the bending radius of the twisted-pair cable.
1,2,3...
534
• Do not lay the twisted-pair cable together with high-voltage lines.
• Do not lay the twisted-pair cable near devices that generate noise.
• Do not lay the twisted-pair cable in locations subject to high temperature
or high humidity.
• Do not lay the twisted-pair cable in locations subject to excessive dirt and
dust or to oil mist or other contaminants.
• Do not install the hub near devices that generate noise.
• Do not install the hub in locations subject to high temperature or high
humidity.
• Do not install the hub in locations subject to excessive dirt and dust or to
oil mist or other contaminants.
If more hub ports are required, they can be added by connecting more than
one hub. There are two possible connection methods for hubs: Cascade and
stacked.
The following standards and specifications apply to the connectors for the
Ethernet twisted-pair cable.
• Electrical specifications: Conforming to IEEE802.3 standards
• Connector structure: RJ45 8-pin Modular Connector
Connector Pin
1 Transmission data +
2 Transmission data -
3 Reception data +
4 Not used
5 Not used
6 Reception data -
7 Not used
8 Not used
Hood Frame ground
pair cable.
1. Lay the twisted-pair cable.
2. Connect the cable to the hub. Be sure to press in the cable until it locks into
place.
Request cable installation from a qualified professional.
3. Connect the cable to the connector on the Ethernet Option Board. Be sure
to press in the cable until it locks into place.
(conforming to ISO8877)
Signal Name Abbr.
TD+
TD-
RD+
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RD-
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FG
Section 9-8
Signal Direction
Output
Output
Input
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Input
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