Siemens SCALANCE XR324-4M EEC, Краткое руководство по эксплуатации

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7.4 Block architecture
Block architecture with SCALANCE XR‑300 devices
The XR324-12M and XR324-4M handle the Ethernet frame traffic of the 24 ports with the aid
of three switch blocks.
● The three switch blocks are connected in series (block 1 via block 2 to block 3)
● Gigabit wire speed is possible within a block (max. 8 ports per block).
● Between the blocks there is a bandwidth of 1 gigabit/s available,that must be shared by all
ports for frame traffic between the blocks.
When operating solely with Fast Ethernet (100 Mbps), the XR devices support full wire speed
via all blocks.
1
P1 P2
2
P1 P2
3
P1 P2
4
P1 P2
5
P1 P2
6
P1 P2
7
P1 P2
8
P1 P2
9
P1 P2
10
P1 P2
11
P1 P2
12
P1 P2
1 2 3
1 Gbit/s 1 Gbit/s
Figure 7-1 Block architecture of the XR324‑12M
P1 P2 P3 P4
P5 P6
P7 P8
1
P1 P2
2
P1 P2
P9 P10 P11 P12
P13 P14 P15 P16
3
P1 P2
4
P1 P2
1 2 3
1 Gbit/s 1 Gbit/s
Figure 7-2 Block architecture of the XR324‑4M
Technical data
7.4 Block architecture
SCALANCE XR-300M EEC
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Compact Operating Instructions, 11/2019, A5E02661176-14