Technical specifications
8.4 XR-300M technical specifications
SCALANCE X-300
170
Operating Instructions, 05/2016, A5E01113043-20
Note
The following applies to IE Switches X-300:
The number of IE Switches X-300 connected in a line influences the frame delay time. When
a frame passes through the switch, this is delayed by the Store&Forward function of the
IE Switch X-300 by the following values:
•
at 64 bytes frame length: Delay of approx. 10 microseconds (at 100 Mbps)
•
at 1500 bytes frame length: Delay of approx. 130 microseconds
(at 100 Mbps)
This means, the more IE Switches X-300 a frame runs through, the higher the frame delay.
8.4
XR-300M technical specifications
Note
Validity of the technical specifications
All the technical specifications described in this section that is not assigned to a specific
device variant, version or a media module, apply to all device variants/versions of the
product group.
8.4.1
Construction, installation and environmental conditions
Table 8- 33 Construction
Device version
(power supply)
Dimensions (W x H x D)
Weight
Degree of protec-
tion
2 x 24 VDC
483 × 44 × 305 mm
5500 g
IP20
1 x 100 to 240 VAC
483 × 44 × 305 mm
5900 g
IP20
Table 8- 34 Installation options
Device version
(power supply)
Installation options
2 x 24 VDC
•
19" rack
1)
•
Desktop operation with adhesive feet
1 x 100 to 240 VAC
19" rack
1)
1)
Note: If mechanical load is high, the device should be secured at four points. You will find more
detailed information in the section "Mechanical load in operation".