HEIDENHAIN ND 1300 VED and Crosshair Systems - Manual (Page 318)

298 QC-300 Series User’s Guide
Footswitch wiring
The optional foot switch is connected to the RJ-45 connector on
the left side of the QC-300.
The wiring of the footswitch is sometimes duplicated by other
external switching devices to facilitate remote
operation in conjunction with other devices in a
larger semi-automated system.
CAUTION
Never apply power to the foot-
switch wires. Applying power to the
connector wires or wiring the switch connector
in any way other than shown by this diagram can cause
serious damage the QC-300 and void the product warranty.
Footswitch and
keypad connector