ADLINK PCI-8158 - Manual (Page 77)

Operation Theory 67
Single Pulse Output Mode (OUT/DIR Mode)
In this mode, the OUT pin is for outputting command pulse chain.
The numbers of OUT pulse represent distance in pulse. The fre-
quency of the OUT pulse represents speed in pulse per second.
The DIR signal represents command direction of positive (+) or
negative (-). The diagrams below show the output waveform. It is
possible to set the polarity of the pulse chain.
Dual Pulse Output Mode (CW/CCW Mode)
In this mode, the waveform of the OUT and DIR pins represent
CW (clockwise) and CCW (counter clockwise) pulse output
Mode Output of OUT pin Output of DIR pin
Dual pulse output
(CW/CCW)
Pulse signal in plus (or CW)
direction
Pulse signal in minus
(or CCW) direction
Single pulse out-
put (OUT/DIR)
Pulse signal Direction signal (level)