Siemens SCALANCE X-300 Series

Technical specifications
8.3 XR-300M technical specifications
SCALANCE X-300
166 Operating Instructions, 10/2010, A5E01113043-10
8.3.5 Further properties of XR-300M
Table 8- 46 Switching properties
Device:
SCALANCE
(Variant) Max. number of
learnable addresses
Aging time Switching
technique
Latency
XR324-12M (2 x 24 V DC, cable outlet front) 8000 30 s Store and
forward
5 μs
XR324-12M (1 x 100 to 240 V AC, cable outlet
front)
8000 30 s Store and
forward
5 μs
XR324-12M (2 x 24 V DC, cable outlet rear) 8000 30 s Store and
forward
5 μs
XR324-12M (1 x 100 to 240 V AC, cable outlet
rear)
8000 30 s Store and
forward
5 μs
Table 8- 47 Redundancy reconfiguration times
Redundancy Reconfiguration times
HSR 300 ms
Standby link 300 ms
MRP 200 ms
Table 8- 48 MTBF
Device:
SCALANCE
(Variant) MTBF
XR324-12M (2 x 24 V DC, cable outlet front) > 25 years
XR324-12M (1 x 100 to 240 V AC, cable outlet front) > 15 years
XR324-12M (2 x 24 V DC, cable outlet rear) > 25 years
XR324-12M (1 x 100 to 240 V AC, cable outlet rear) > 15 years
Note
The IE Switches X-300 support full wire speed switching complying with IEEE 802.3 on all
ports.
The number of packets depends on the packet length according to the IEEE802.3 standard:
Table 8- 49 Full wire speed switching
Number of frames
at 100 Mbps at 1000 Mbps
At a frame length of (in bytes):
148810 1488095 64
84459 844595 128