User guide

“twister” 2131 Multimode-to-Singlemode Media Converter 5
Overview
The Metrobility “twister” 2131 multimode-to-singlemode (MM-to-SM) media
converters provide seamless high-speed integration of multimode and singlemode
fiber optic segments in Fast Ethernet environments. The “twister” 2131 supports
remote fiber optic links up to 2km over multimode and up to 15km over singlemode
fiber optic cable.
To optimize your Fast Ethernet network, this innovative media converter provides
seamless operation in half-duplex or full-duplex environments. Full signal restora-
tion —with a low bit delay — ensures accurate data transmission to and from LANs
within an organization. All signal activity is completely converted ensuring accurate
communication and collision detection in connected segments and allowing maxi-
mum media length to be achieved on either side of the device.
The “twister” 2131 provides the following key feature:
• A Link Loss Carry Forward (LLCF) enable/disable switch to provide an easy
means for troubleshooting a remote network connection. Refer to the section
of this guide titled “Link Loss Carry Forward” for more information.
Whether you are updating or expanding your existing network, the Metrobility line
of “twister” media converters supports a wide range of configuration needs. The
“twister” multimode-to-singlemode media converters include the following media
conversion combinations:
2131-34-01______ FX multimode SC to FX singlemode SC
2131-36-01______ FX multimode SC to FX singlemode ST
2131-54-01______ FX multimode ST to FX singlemode SC
2131-56-01______ FX multimode ST to FX singlemode ST