Siemens SCALANCE X-200 Operating Instructions Manual page 75

Type Operating temperature
XF208 -40 °C to +60 ℃ *)
X200-4P IRT -25 ℃ to +40 ℃
X201-3P IRT -25 ℃ to +50 ℃
X201-3P IRT PRO -25 ℃ to +60 ℃
X202-2IRT -40 °C to +60 ℃
X202-2P IRT -25 ℃ to +60 ℃
X202-2P IRT PRO -25 ℃ to +60 ℃
X204IRT -40 °C to +70 ℃
X204IRT PRO -25 ℃ to +70 ℃
XF204IRT -40 °C to +60 ℃ *)
*) Note the information on the mounting position above.
Frame delay times
The number of IE Switches X-200 connected in a line influences the frame delay.
Note
Frame delay time with X-200 without IRT
When a frame passes through X-200 IE switches, it is delayed by the Store&Forward
function of the X-200 IE switches.
• 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 X-200 IE switches the frame passes through, the longer the frame
delay.
Note
Frame delay time with X-200 with IRT
The more X-200IRT IE switches a frame runs through, the higher the frame delay. By using
the "cut through" switching mechanism, the X-200IRT IE switches are ideal to meet the real-
time requirements of PROFINET.
Cut through is, however, not possible:
• Between a port set to 10 Mbps and a port set to 100 Mbps.
• When two packets are to be sent at the same time on one port.
In this case, an X-200 IE switch changes to Store&Forward and the delay increases.
SCALANCE X-200
Operating Instructions, 03/2015, C79000-G8976-C284-06
Storage/transport temper-
ature
-40 °C to +70 ℃
-40 ℃ to +70 ℃
-40 ℃ to +70 ℃
-40 °C to +70 ℃
-40 ℃ to +70 ℃
-40 ℃ to +70 ℃
-40 °C to +70 ℃
-40 °C to +70 ℃
-40 ℃ to +70 ℃
-40 °C to +70 ℃
Technical specifications
Rel. humidity in Operating altitude at max. xx
operation (no con- °C ambient temperature
densation)
‹ 95 % 2000 m at max. 56 ℃
3000 m at max. 50 ℃
‹ 95 % 2000 m at max. 35 ℃
3000 m at max. 30 ℃
‹ 95 % 2000 m at max. 45 ℃
3000 m at max. 40 ℃
‹ 95 % 2000 m at max. 56 ℃
3000 m at max. 50 ℃
‹ 95 % 2000 m at max. 56 ℃
3000 m at max. 50 ℃
‹ 95 % 2000 m at max. 56 ℃
3000 m at max. 50 ℃
‹ 95 % 2000 m at max. 56 ℃
3000 m at max. 50 ℃
‹ 95 % 2000 m at max. 56 ℃
3000 m at max. 50 ℃
‹ 95 % 2000 m at max. 56 ℃
3000 m at max. 50 ℃
‹ 95 % 2000 m at max. 56 ℃
3000 m at max. 50 ℃
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