Electrical connection
Leuze electronic
DCR 202i
30
Switching input/output
The code reader features four freely programmable switching inputs/outputs: SWI1, SWO2, SWIO3 and
SWIO4.
The four switching inputs/outputs are configured by default as follows:
• SWI1
Trigger switching input (default)
• SWO2
GOOD READ switching output (default)
• SWIO3
As switching output: NO READ (default)
• SWIO4
As switching output: device ready (default)
4
SWO2
Green
Digital switching output 2 (default: Good Read )
5
FE
Pink
Functional earth
6
GNDOUT
Yellow
Ground reference RS 232/RS 422
7
RX-
Black
RS 422: RX- signal
8
TX-
Gray
RS 422: TX- signal
9
RXD/RX+
Red
RS 232: RXD signal
RS 422: RX+ signal
10
TXD/TX+
Violet
RS 232: TXD signal
RS 422: TX+ signal
11
SWIO3
Gray/pink
Digital switching input/output 3 (configurable)
(default: switching output No read )
12
SWIO4
Red/blue
Digital switching input/output 4 (configurable)
(default: switching output Device ready )
Thread (M12
plug)
FE (functional earth)
Connection cable shield.
The shield of the connection cable is on the
thread of the M12 plug.
Pin
Designation
Core color
Assignment
The core colors only apply when Leuze electronic s original connection cables are used (see
chapter 15.4 "Cables accessories").
NOTICE
Attention!
For UL applications, use is only permitted in Class 2 circuits in accordance with the NEC (National
Electric Code).
The function as switching input or switching output is set via the webConfig configuration tool
(CONFIGURATION > DEVICE > Switching inputs/outputs, see chapter 9).
