Note 3.3: Interfacing To A Line Driver (Also Called Open Emitter) Output; Note 3.4: Interfacing To An Open Collector Output - Dalsa Xtium2-CLHS PX8 User Manual

• The TTL shaft encoder ground, the bias voltage ground, and the Xtium2-CL PX4 computer
system ground must be connected together.
DC voltage for the RS-422 (-) input can be generated by a resister voltage divider.
•
Use a single battery cell if this is more suitable to your system.
•

Note 3.3: Interfacing to a Line Driver (also called Open Emitter) Output

Vcc
Generic Line Driver/Open Emitter
Output
GND
Pull-down resistor needed if it is not
already present in the Shaft Encoder.
Value depends on the characteristics
of the Shaft Encoder Output

Note 3.4: Interfacing to an Open Collector Output

Vcc
Generic Open Collector Output
GND
86 • Technical Specifications
Interfacing Line Driver/Open Emitter Output to RS-422 Inputs
Bias Voltage
DC
Interfacing Open Collector Output to RS-422 Inputs
Vcc
Pull-up resistor needed if it is not
already present in the Shaft Encoder.
Value depends on the characteristics
of the Shaft Encoder Output.
Bias Voltage
Vcc/2
DC
RS-422 (+) input
100 ohm
RS-422 (-) input
Vcc/2
FG/system GND
RS-422 (+) input
100 ohm
RS-422 (-) input
FG/system GND
Xtium2-CLHS PX8 User's Manual
Frame Grabber System
Frame Grabber System