Siemens SIMATIC IOT2040 - Ethernet Port; Serial Port (Only SIMATIC IOT2040)

Technical specifications
7.5 Hardware descriptions
SIMATIC IOT2020, SIMATIC IOT2040
52 Operating Instructions, 10/2016, A5E37656492-AB
7.5.2.3
Ethernet port
RJ45 socket
Name of interface on the device: X1 P1 LAN, X2 P1 LAN
Pin
Short description
Meaning
1
BI_DA+
Bidirectional data A+, input/output
2
BI_DA–
Bidirectional data A–, input/output
3 BI_DB+ Bidirectional data B+, input/output
4
BI_DC+
Bidirectional data C+, input/output
5
BI_DC–
Bidirectional data C–, input/output
6
BI_DB–
Bidirectional data B–, input/output
7
BI_DD+
Bidirectional data D+, input/output
8
BI_DD–
Bidirectional data D–, input/output
LED
Short description
Meaning
1 LED 1 Off: 10 Mbps
Lit green: 100 Mbps
2 LED 2 Off: Cable not connected
Lights up yellow: Connection established
Flashes: Data transfer active
7.5.2.4
Serial port (only SIMATIC IOT2040)
D-sub socket, 9-pin, with screw lock
Name of interface on the device: X30 COM, X31 COM
RS 232
RS 422
RS 485