Omron OMNUC W R88A-NCW152-DRT, Manual

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6.3 Precautions for Communications Line Design
6-7
6
Flow Chart
Use the flow chart below to determine the communications power supply on the trunk line.
Satisfy the conditions for each drop line on the previous page.
Provisionally determine the
location of the power supply.
Step 1
Determine the best location of the
power supply from the graphs.
Are the power supply
specifications met?
Yes
No
Set the location for the power supply.
Consider changing the
location of the power supply.
Consider using thick cable.
Yes
No
Calculate the best location
of the actual nodes.
Yes
No
Consider changing the location of
the power supply.
Consider using thick cable.
Consider changing the location of
high current consumption nodes.
Yes
Split the power supply
system by installing more
than two power supplies.
No
Are the power supply
specifications met?
Step 2
Are the power supply
specifications met?
Are the power supply
specifications met?
Step 3