Ethernet Port; Serial Port (Only Simatic Iot2040) - Siemens SIMATIC IOT Operating Instructions Manual

Technical specifications
7.5 Hardware descriptions
7.5.2.3

Ethernet port

RJ45 socket
Name of interface on the device: X1 P1 LAN, X2 P1 LAN
Pin
1
2
3
4
5
6
7
8
LED
1
2
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
52
Short description
BI_DA+
BI_DA–
BI_DB+
BI_DC+
BI_DC–
BI_DB–
BI_DD+
BI_DD–
Short description
LED 1
LED 2
RS 232
RS 422
RS 485
Meaning
Bidirectional data A+, input/output
Bidirectional data A–, input/output
Bidirectional data B+, input/output
Bidirectional data C+, input/output
Bidirectional data C–, input/output
Bidirectional data B–, input/output
Bidirectional data D+, input/output
Bidirectional data D–, input/output
Meaning
Off: 10 Mbps
Lit green: 100 Mbps
Off: Cable not connected
Lights up yellow: Connection established
Flashes: Data transfer active
SIMATIC IOT2020, SIMATIC IOT2040
Operating Instructions, 10/2016, A5E37656492-AB