SCALANCE XB008
There are four TP port groups:
Group1: P1 and P5
Group2: P2 and P6
Group3: P3 and P7
Group4: P4 and P8
Between ports of different port groups, an insulation voltage of 1.5 kV is adhered to
(corresponds to IEEE802.3, Chapter 33.4.1.1, Environment B), e.g. between P2 and P4.
The requirements for Environment A are met between ports of the same group, e.g. between P1
and P5.
4.5
FO port (fiber optic)
NOTICE
Failure of the data traffic due to contamination of optical plug-in connections
Optical sockets and plugs are sensitive to contamination of the end face. Contamination can
lead to the failure of the optical transmission network. Take the following precautions to avoid
functional impairments:
• Clean the end face of field-assembled connectors carefully before connecting. No residues
of processing may remain on the connector.
• Only remove the dust caps of optical transceivers and pre-configured cables shortly before
connecting the cables.
• Close unused optical sockets and plugs as well as pluggable transceivers and slots with the
supplied protective caps.
4.5.1
SCALANCE XB004-1
Transmission rate
The transmission rate of the optical Fast Ethernet port is 100 Mbps.
Transmission mode
The transmission mode for 100Base-FX is specified in the IEEE 802.3 standard.
Since the full duplex mode and the transmission rate cannot be modified for optical
transmission, autonegotiation cannot be used.
Description of the device
4.5 FO port (fiber optic)
SCALANCE XB-000
30
Operating Instructions, 01/2022, A2B00077300-11
