Siemens SCALANCE X-300 Compact Operating Instructions page 9

If information applies to all devices, the term "IE Switches X-300" is used. If information
applies to only a particular product group, the relevant names will be used without extra
information on the type or number of interfaces. Examples: "X-300" stands for non-modular
devices with a compact housing, "XR-300" means all rack devices, "X-300M" means all
modular devices etc.
Note
SCALANCE X320-3LD FE
The SCALANCE X320-3LD FE deviates from the type designation in that it has an SC port
for multimode fiber-optic cable up to a maximum of 5 km in length and two SC ports for
single mode fiber-optic cable up to a maximum of 26 km in length.
• Port 21: Multimode
• Port 22: LD (long distance, single mode)
• Port 23: LD (long distance, single mode)
2 optical interface transceivers possible
The device is also equipped with 2 optical interface transceivers.
•
1
•
2
Refer to "Transmitter output optical" and "Receiver input" in the technical specifications.
SCALANCE X-300
Compact Operating Instructions, 05/2016, A5E00982643-14
(Fast Ethernet, long distance interface)
(Fast Ethernet, multimode interface)
Introduction
1.2 Type designations
9