"Standard" Wiring from the MDC Box to the Machine

A "standard" machine (i.e. Fanuc, Heidenhain etc.) will use one of the following cable specs:

MDC box
(DE-9 female)

 

Machine
(DB-25 male)

3brown3
2red2
7blue5
8white4
5black7
  6,8,20 linked on machine end

Cable from MDC Box to MC (machine requires RTS/CTS handshake).


MDC box
(DE-9 female)

 

Machine
(DB-25 male)

3brown3
2red2
5black7
  4,5 linked on machine end
6,8,20 linked on machine end

Cable from MDC Box to MC (machine uses XOn XOff handshake).


MDC box
(DE-9 female)

 

Machine
(DB-25 male)

3brown3
2red2
5black7
9orange25
  4,5 linked on machine end
6,8,20 linked on machine end

Cable from MDC Box to MC (machine uses XOn XOff handshake)
MDC box powered by the Fanuc RS-232 24V supply on pin 25.

Note this assumes a Fanuc control with a working 24V supply on pin 25 of its serial port. To use this option it is necessary to open the MDC box and move the input fuse and connect a link. Contact CNC for details. The maximum current you can draw from the RS-232 line is limited so you can only power the MDC box, a single Moxa port and a barcode reader from this source.