Siemens X-400 - Manual (Page 123)

Technical Specifications
Operating Instructions for SCALANCE X-400 Industrial Ethernet Switches
C79000-G8976-C186-03
123
7.2 Media Module MM491-2 (100Base-FX)
Interfaces
Connection of end devices or network
segments over FOC 2x2 BFOC sockets
(100 Mbps, 100BaseFX, full duplex)
Power consumption 2 W
Permitted Cable Lengths
FOC lengths 0 – 3 km
(50/125 µm multimode fiber; 1 dB/km
at 1310 nm; 1200 MHz*km; 6 dB max.
permitted FO cable attenuation at 3 dB
link power margin)
Permitted Environmental Conditions
/ EMC
Operating temperature 0°C through + 60°C
Storage/transport temperature - 40°C through + 80°C
Relative humidity in operation < 95% (no condensation)
Operating altitude Max. 2000 m
Noise emission EN 55081 Class A
Noise immunity EN 61000-6-2 : 2001
Construction
Dimensions (W x H x D) 35 x 145 x 90 mm
Weight 260 g
Degree of protection IP 20