Technical specifications
6.4 Other properties
SCALANCE XR-300M PoE
Compact Operating Instructions, 05/2016, A5E02661178-10
61
Image 6-1
Block architecture of the XR324-4M
6.4
Other properties
Table 6- 16 Switching properties
Max. number of learnable addresses
8000
Aging time
30 sec
Switching technique
Store and forward
Latency
5
μ
s
Table 6- 17 Reconfiguration times for redundancy mechanisms
Redundancy mechanism
Reconfiguration times
HRP
300 ms
Standby link
300 ms
MRP
200 ms
Mean time between failure (MTBF)
The value in the following table applies to the basic device without media modules.
MTBF
> 15 years
1)
1)
This value applies at 40 °C.
In the calculation of the MTBF of a modular switch, the standard parts count applies; in other
words, the reciprocals of all component failure rates are added.
The reciprocal of this total id the MTBF of the entire assembly.
