Npaq MR Hardware Manual
Installation and Configuration
+5 VDC
1K
1K
3
8
Active Low
Output *
* Active low output shown. Opposite polarity available by reversing connections to Pins 3 and 8.
Aux. Marker
120 - 180 Ω (typical)
10 mA 180 Ω
Differential
+5 VDC
Isolated Section
vcc
To Laser
Active Low
Output*
HCPL-2601 or
6N136
1N4148
1K
1K
3
8
9
Aux. Marker
Opto-Isolated
Figure 2-31:
PSO Interface
48
Chapter 2
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