Block Architecture - Siemens SCALANCE X308-2M Operating Instructions Manual

Technical specifications
8.8 XR-300M PoE technical specifications
8.8.4

Block architecture

Block architecture of the SCALANCE XR-300M PoE
The XR-300M PoE handles 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
When operating solely with Fast Ethernet (100 Mbps), the XR devices support full wire
speed via all blocks.
Figure 8-5
204
all ports for frame traffic between the blocks.
1
P1 P2 P3 P4
P11 P12
P9 P10
Block architecture of the XR324-4M PoE
2
P7
P5 P6
P15
P13 P14
1 Gbit/s
1
P8
P1 P2
3
P16 P1 P2
1 Gbit/s
Operating Instructions, 02/2012, A5E01113043-12
3
2
P1 P2
4
P1 P2
SCALANCE X-300