Siemens SCALANCE X-400 User Manual

Technical specifications
8.4 Media module MM491-2LH+ (100Base-FX) - technical specifications
SCALANCE X-400
146 Operating Instructions, 06/2015, C79000-G8976-C186-12
8.4
Media module MM491-2LH+ (100Base-FX) - technical specifications
Interfaces
Connection of end devices or network segments
over FOC
2x SC duplex sockets
(100 Mbps, 100BaseFX, full duplex)
Power of the laser diode
< 0 dBm
Power consumption 4 W
Permitted cable lengths
FO cable lengths:
• 9/125 µm single mode fiber
0 - 70 km
(0.38 dB/km at 1550 nm;
maximum insertion loss 0.5 dB;
26 dB max. permitted FO cable attenuation at
3 dB link power margin
minimum cable attenuation at 3 dB)
Permitted environmental conditions / EMC
Operating temperature
- 40°C through + 70°C
Storage/transport temperature
- 40°C through + 80°C
Relative humidity in operation
< 95% (no condensation)
Operating altitude
Max. 2000 m
RF interference level
EN 55081 Class A
Immunity
EN 61000-6-2: 2001
Laser protection
Class 1 complying with IEC 60825-1
Construction
Dimensions (W x H x D)
35 x 145 x 90 mm
Weight
260 g
Degree of protection
IP20

Siemens SCALANCE X-400 Specifications

General

Brand	Siemens
Model	SCALANCE X-400
Category	Switch
Language	English