Electrical connection
Leuze electronic
CR 55
12
1
Red
2
Orange
3
Violet
Connection version NPN: standard setting (low = active)
Figure 5.1: Wiring example of the trigger input
5.3.2 Switching output
The NPN switching output connection between SW OUT (black) and GND (violet) switches if a code is
detected against GND.
1
Red
2
Black
3
Violet
Figure 5.2: Switching output
5.4
PC or terminal connection
Via the serial interface, you can configure the bar code reader by means of a PC or terminal. For this, you
need an RS 232 connection that establishes the RxD, TxD and GND connections between PC and bar
code reader.
The RS 232 connection can be established in the following ways:
• Direct connection of the bar code reader connection wires to the PC or terminal via its own connec
-
tor.
• Connection via an MA-CR adapter circuit board
To simplify the connection of the connection wires to the PC interface, an adapter circuit board (MA-
CR) is available for implementing individual wire contacting to SUB-D, 9-pin; see chapter 12.2.
+ 5 V DC
SW_IN
GND
4.9 … 5.4 V DC
GND
2.2 k
1
2
3
NOTICE
Maximum loading of the switching output
Do not load the switching output of the bar code reader with more than 20 mA at +5 … 30 V DC!
+ 5 V DC
OUT
GND
GND
+ 5 … 30 V DC
max. 20 mA !
R
L
4.9 … 5.4 V DC
1
2
3
