Lanner LEC-3031 Series User Manual page 44

COM port connector
PIN1
PIN 1 2
RS-232
RS-422 TX+ TX-
RS-485 TX+ TX-
RS-485 D+ D-
PIN 11 12
RS-232
RS-422 TX+ TX-
RS-485 TX+ TX-
RS-485 D+ D-
J3：RS485 Enable
Pin
1-2 (Default)
NC
Industrial Communication Platform
Part reference: CN1,CN2
3 4
SIN SOUT GND
RX- RX+
RX- RX+
13 14
SIN SOUT GND
RX- RX+
RX- RX+
Description
RS485 Enable
PIN10
PIN20
5 6 7
GND TX+ TX-
GND TX+ TX-
GND D+ D-
15 16 17
GND TX+ TX-
GND TX+ TX-
GND D+ D-
44
8 9 10
SIN SOUT GND
RX- RX+ GND
RX- RX+ GND
GND
18 19 20
SIN SOUT GND
RX- RX+ GND
RX- RX+ GND
GND