Save money by purchasing Fast Ethernet devices with lower cost multimode fiber interfaces and use converters to introduce single mode fiber only where you need it. Transition Networks F-SM-MM-02-NA Fast Ethernet Media Converter extends Fast Ethernet or ATM over singlemode fiber-optic cable up to 20 km.
Works in an acid plant
This review is from: TRANSITION F-SM-MM-02-NA Networks Fast Ethernet or ATM/SONET Transceiver 1 x SC
Pros: We had this installed in an acid plant sub-station to convert single-mode long range ethernet fiber to Multimode. We are running interlocked control systems over these fibers and the converters must be up 100% of the time. We had a lightning strike in the area and the converter stopped working and we thought that it fried the converter, but when we replaced the little 12vdc power adapter plug, the converter came back online with no troubles. Nice hardy little converter that survived acid fumes and lightning strikes. We are buying more of these for spares.
Cons: You need to protect the little 12vdc power adapter from surges.
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