Siemens SCALANCE XRH-300

6.6.3 Dependency between ports and ambient temperature (derating)
The following 󹪝gure shows the maximum number of ports or SFP transceivers that you can use
so that the maximum ambient temperature speci󹪝ed in the left-hand column is permissible.
(SPVQ"(SPVQ#(SPVQ$(SPVQ%
-40 °C ... 70 °C 20 x RJ45 ports
1 Gbps
- - 2 x RJ45
ports
10 Gbps
-40 °C ... 60 °C 20 x RJ45 ports
1 Gbps
4 x SFP,
Group 1
8 x SFP, Group 1
or
8 x SFP+, Group 1
2 x RJ45
ports
10 Gbps
Max. 4 of the SFP
transceivers used in
Group C can be of the
type SFP993-1LD.
-40 °C ... 55 °C 20 x RJ45 ports
1 Gbps
4 x SFP,
Group 1
8 x SFP, Group 1
or
8 x SFP+, Group 1
2 x RJ45
ports
10 Gbps
-40 °C ... 50 °C 20 x RJ45 ports
1 Gbps
4 x SFP,
Group 1
8 x SFP, Group 1
or
8 x SFP+, Group 1
2 x RJ45
ports
10 Gbps
Max. 2 of the SFP transceivers
used in Group B and C can be
from the groups SFP Group 2 or
SFP+ Group 2.
Connecting up
6.6 Industrial Ethernet
SCALANCE XRH-300/XRM-300
70 Equipment Manual, 10/2022, C79000-G8976-C546-01