第
3
页
Note
：
For LSD102A
、
LSD131A
、
LSD151A, this port is NPN output port
（
open collector
）
，
there will be low lever
output when object is detected at the detection area.
For LSD121A, LSD151A, this port is I/O input port,
When the input is suspended or connected to low, it
is identified as high level and output as "0" in the communication protocol.
4-cores power cable
：
1.3.3 Communication Cable
1.3.3.1 Communication cable
Pin
Terminal
No
Color
definition
Function
1
Blue
24V-
Negative input of power supply
2
Black
HEAT-
Negative input of heating power
3
White
IN2/OUT1
I/O input / NPN output port 1
（
same to OUT1
）
4
Brown
24V+
Positive input of power supply
5
Red
HEAT+
Positive input of heating power
6
Green
NC/OUT3
I/O input / NPN output port 3
（
same to OUT1
）
7
Yellow
INI/OUT2
I/O input / NPN output port2
（
same to OUT1
）
8
NC
NC
-
Pin
Terminal
No
Color
definition
Function
1
Blue
24V-
Negative input of power supply
2
White
HEAT -
Negative input of heating power
3
NC
NC
Blank
4
Brown
24V+
Positive input of power supply
5
Yellow
HEAT+
Positive input of heating power
6
NC
NC
Blank
7
NC
NC
Blank
8
NC
NC
Blank
