Siemens SCALANCE X-300 Series User Manual

8.4.5 Other properties
Switching properties
Max. number of learnable addresses 8000
Aging time 30 sec
Switching technique Store and forward
Latency 5 μs
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 values in the following table apply to the basic device without media modules.
Device version (power supply) MTBF
1)
2 x 24 V DC > 26 years
1 x 100 to 240 V AC > 22 years
1)
These values apply 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.





07%)
WRWDO
07%)
EDVLFGHYLFH
07%)
PRGXOHQ
07%)
PRGXOH
Full wire speed switching
Number of frames per second At a frame length of
At 100 Mbps At 1000 Mbps
148810 1488095 64 bytes
84459 844595 128 bytes
45290 452899 256 bytes
23496 234962 512 bytes
11973 119732 1024 bytes
9615 96154 1280 bytes
8127 81274 1518 bytes
Technical specifications
8.4 XR-300M technical specifications
SCALANCE X-300
172 Operating Instructions, 11/2019, A5E01113043-24

Siemens SCALANCE X-300 Series Specifications

General

Brand	Siemens
Model	SCALANCE X-300 Series
Category	Switch
Language	English