Datalogic DS6100 Installation Manual page 40

DATALOGIC
Figure 2.27 - Encoder NPN input command using external power
Figure 2.28 - Encoder PNP input command using DS6100 power
Figure 2.29 - Encoder PNP input command using external power
Isolation between the command logic and the scanner is maintained by
powering the inputs with a different supply voltage (Vext) from that supplied
on the 6-pin connector (VS).
The driving logic of the input signals may be powered, for convenience, with
the voltage supply between pins A (VS) and B (GND) of the connector. In this
case, however, the device is no longer electrically isolated.
DS6100
+ 5V
E
F
DS6100
+ 5V
DS6100
+ 5V
E
F
Vext
ENCODER
ENC+
V
ENC-
ENCODER
A VS
ENC+
E
F
ENC-
B
GND
Vext
ENCODER
V
ENC+
ENC-
DS6100
Signal
Signal
Installation - 2.25