Sfp Port - Siemens SIMATIC NET SCALANCE XCM-100 Operating Instructions Manual

Two components connected to a link segment can exchange information about the transfer and
can adapt their settings to each other. The mode with the highest possible speed is set.
Note
Devices not supporting autonegotiation must be set to 100 Mbps half duplex or 10 Mbps half
duplex.
Auto polarity exchange
If the pair of receiving cables is connected incorrectly (RD+ and RD- interchanged), the polarity
is adapted automatically.
MDI/MDI-X autocrossover function
The transmit and receive contacts of an Ethernet port are automatically assigned with the MDI/
MDI-X autocrossover function. The assignment depends on the cable with which the
communication partner is connected. This means that it does not matter whether the port is
connected using a patch cable or crossover cable. This prevents malfunctions resulting from
mismatching send and receive lines. This makes installation much easier for the user. SCALANCE
XCM-100 media converters support the MDI/MDI-X autocrossover function.
7.9

SFP port

The SCALANCE XCM-100 Media Converter has a plug-in transceiver slot as a port for fiber-optic
cables. You can find information about the SFPs enabled for the SCALANCE XCM-100 in the
"Accessories (Page 22)" section.
Use only approved SFP transceivers
If you use SFP transceivers that have not been approved by Siemens AG, there is no guarantee
that the device will function according to its specifications.
If you use unapproved SFP transceivers, this can lead to the following problems:
• Damage to the device
• Loss of the approvals
• Violation of the EMC regulations
Use only approved pluggable transceivers.
Note
Plugging and pulling during operation
You can plug and pull pluggable transceivers with the device in operation.
SCALANCE XCM-100 Media Converter
Operating Instructions, 07/2022, C79000-G8976-C659-01
WARNING
Connecting
7.9 SFP port
47