Siemens Industrial Ethernet Switches SCALANCE X-200 - Manual (Page 83)

Product properties
3.16 SCALANCE X212-2LD
SCALANCE X-200
Operating Instructions, 12/2011, A5E00349864-19
83
3.16.3 SCALANCE X212-2LD FO ports
Transmission rate
The transmission speed of the optical Fast Ethernet ports is 100 Mbps.
Transmission mode
The transmission mode for 100Base-FX is specified in the IEEE 802.3 standard.
Since the full duplex mode and the transmission rate cannot be modified for optical
transmission, autonegotiation cannot be selected.
Transmission medium
Data transmission is over single mode fiber-optic cable (FOC). The wavelength is 1310 nm.
Single mode fiber-optic cables are used with a core of 9 µm; the light source is an LED.
The outer diameter of the FOC is 125 µm.
Transmission range
The maximum transmission range (segment length) is 26 km.