DNC can be used for managing part programs and diagnostic
parameters. If user would like to use the existing LAN setup can go for this system.
All Ethernet to Serial converters are used for each CNC. Nor recommended for Tool
room applications.
DNC
in this setup was very common in older days. PC after connecting with 8 port Serial
card gets 8/16 ports for communication can be connected to each CNC with optical
isolators. This system also can be used in Tool rooms.
8
port serial control card and it's cable available in 9db or 25db connectors.
This
setup is useful and now becoming most popular among production units. There is
wiring required and is totally flexible. It can be even integrated with Shop link
machine monitoring software.
DNC for Production
units 
