Omron CS1W-ETN21 - Manual (Page 59)

34
Network Installation Section 2-4
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.
C
P
U P
S I
C
P
S I
I
P
S I
I
P
S I
I
CPU Rack
10 Units max.
End cover
10 Units max.
End cover
Expansion Backplane
10 Units max.
End cover
Expansion Backplane
10 Units max.
End cover
Expansion Backplane
Up to four Ethernet
Units can be mounted.
PS: Power Supply Unit
CPU: CPU Unit
IC: I/O Control Unit
II: I/O Interface Unit