
Section 3 - CNC Machine Installation - 19Microrouter CNC Machine User's Manual
3: Connecting your PC to the Microrouter
25 pin D female connector
fitted to RS232 cable (using
a 9 to 25 pin adaptor).
25 pin D male
connector
fitted to pc
(back) panel.
Short (standard)
9 pin D COM
port.
9 pin D female
connector fitted
to RS232 cable.
9 pin D male
connector
fitted to pc
(back) panel.
Long (PCI card
mounted) 25 pin D
COM port.
25 pin D
male
connector on
security key
(dongle).
25 pin D
female
connector
fitted to pc
(back) panel.
4) Connect the remaining 9 pin D female end of the RS 232 cable to
the 9 pin D male COM port on your PC, ideally COM 2. Most
computers usually have two COM ports situated on the back
panel of your PC. If you cannot identify any of the ports on your
PC, please refer to your original PC manufacturers operating
manual for further guidance. Note that older computers may be
fitted with a 25 pin D male COM port, which may require the
fitting of an additional 9 to 25 pin adaptor to your RS 232 cable.
5) Do not confuse the 25 pin D female
parallel (printer) port on your PC with
the 25 or 9 pin male D COM ports. If
your CNC machine control software is
supplied with a security key, the 25 pin
D male connector of this key must be
fitted to the 25 pin D female parallel
port, as shown right. Security keys are
also referred to as dongles.
A schematic diagram illustrating these
component connections is shown on page
22.
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