Technical specifications
8.8 X-300M PoE technical specifications
SCALANCE X-300
190 Operating Instructions, 10/2010, A5E01113043-10
Number of frames
at 100 Mbps at 1000 Mbps
At a frame length of (in bytes):
11973 119732 1024
9615 96154 1280
8127 81274 1518
Note
The following applies to IE Switches X-300:
The number of IE Switches X-300 connected in a line influences the frame propagation time.
When a frame passes through an IE Switch X-300, it is delayed by the Store&Forward
function of the IE Switch X-300
with a 64 byte frame length by approx. 10 microseconds (at 100 Mbps)
with a 1500 byte frame length by approx. 130 microseconds (at 100 Mbps)
This means that the more IE Switch X-300 devices the frame passes through, the longer the
frame delay.
8.8 X-300M PoE technical specifications
8.8.1 Assembly, installation, environmental conditions
Table 8- 96 Assembly and installation
Construction *)
Dimensions (W x H x D) 120 x 125 x 124 mm
Weight 1 150 g
Degree of protection IP20
Installation options
DIN rail **
)
yes
S7-300 standard rail yes
Wall yes
19" rack no
*
)
All values apply to the switch without media modules inserted.
**
)
When used in shipbuilding, installation on a 35 mm DIN rail is not permitted.
In ships, the 35 mm DIN rail does not provide adequate support.
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