Electrical Connectors Of The X208Pro - Siemens SCALANCE X-200 Operating Instructions Manual

5.6.1.2

Electrical connectors of the X208PRO

Connection via M12 sockets
With the IE switch SCALANCE X208PRO, the connection to Industrial Ethernet is via 4-pin,
d-coded M12 sockets with MDI-X assignment.
MDI / MDI-X autocrossover function
The advantage of this function is that straight-through cables can be used throughout and
external Ethernet crossover cables are unnecessary. This prevents malfunctions resulting
from mismatching send and receive wires. This makes installation much easier for the user.
Note
Formation of loops
Please note that the direct connection of two ports on the switch or accidental connection
over several switches causes an illegal loop. Such a loop can lead to network overload and
network failures.
Pin assignment
The following table shows the pin assignment of the M12 sockets:
Pin no.:
1
2
3
4
Permitted cable lengths
● With connection using TP cords or TP-XP cords: maximum 10 m
● When connected using IE FC cable with IE RJ-45 plug:
Depending on the cable type, a total length of up to 100 m is permitted between two
devices.
IE FC M12 plug PRO
The IE FC M12 Plug PRO has a high degree of protection (IP65/67) and is suitable for
connecting the X208PRO to Industrial Ethernet. You can obtain this plug using the following
order number: 6GK1 901-0DB20-6AA0.
SCALANCE X-200
Operating Instructions, 02/2018, C79000-G8976-C284-12
Assignment
RX+
TX+
RX-
TX-
Connecting up
5.6 Attachment to Industrial Ethernet
71