Omron CS1W-ETN21 operation manual Network Installation, Basic Installation Precautions

Network Installation Section 2-4

CPU Rack 10 Units max.

P C I

S P C

U

Expansion Backplane 10 Units max.

P I

S I

End cover

End cover

Expansion Backplane

P I

S I

10 Units max.

Up to four Ethernet Units can be mounted.

End cover

Expansion Backplane 10 Units max. End cover

P I

S I

PS: Power Supply Unit

CPU: CPU Unit

IC: I/O Control Unit

II: I/O Interface Unit

The CJ1W-ETN21 Ethernet Unit’s maximum current consumption is 370 mA. Make sure that the total current consumption of all the Units connected to the same CPU Backplane or Expansion Backplane does not exceed the output capacity of the Power Supply Unit.

2-4 Network Installation

2-4-1 Basic Installation Precautions

•Take the greatest care when installing the Ethernet System, being sure to follow ISO 8802-3 specifications. You must obtain a copy of these specifi- cations and be sure you understand them before attempting to install an Ethernet System. Unless you are already experienced in installing com- munications systems, we strongly recommend that you employ a profes- sional to install your system.

•Do not install Ethernet equipment near sources of noise. If noise-prone environments are unavoidable, be sure to take adequate measures against noise interference, such as installing network components in grounded metal cases, using optical links in the system, etc.

34