Extended temperature Ethernet and Fast Ethernet media converters

Computer/Embedded Technology

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30 July 2003 Computer/Embedded Technology

Transition Networks offers Ethernet and Fast Ethernet copper-to-fibre media converters with an extended operating temperature range. With these additions to company's standalone family of conversion products, media converters can now be placed in harsh temperature environments where many traditional conversion products fail to meet the extended temperature range necessary for reliable operation.

"The addition of extended temperature media converters to our already extensive portfolio of conversion products gives our customers even more flexibility in where and how they choose to design fibre into their networks," said Bill Schultz, vice president of marketing for Transition Networks. "They can now cost effectively extend their Ethernet or Fast Ethernet networks over fibre to non-temperature controlled outdoor enclosures or to industrial temperature rated environments where excessive heat is a major concern."

The Extended Temperature media converters have a broad operating temperature range of -25 to +70°C, which is a drastic improvement over many competitive products with a 0°C to +40°C operating temperature range, says the company. In addition, both products include many of the extensive features commonly found on Transition's standalone media converters. The Ethernet product includes AutoCross and Link Alert, while the Fast Ethernet product includes Auto-Negotiation, AutoCross, Link Pass Through, Far End Fault (FEF) and Pause.

Features

* Auto negotiation: designed to provide auto-negotiation (100 Mbps and full vs half duplex) in all 802.3U compliant environments.

* AutoCross: provides a means for the installer to make the connections without needing a crossover cable.

* Link alert/link pass through: interrupted communications are detected and reported to administrators, who can issue a fix without having to leave their desks.

* Far end fault: When a Fast Ethernet fibre link is down, the converter detects the loss of signal, generates a far end fault signal and sends it back on the remaining fibre.

* Pause: When networks have different devices on different parts of the network a slower device may not handle the transfer rate and ask for a 'break'. Devices then stop communicating and transmission resumes later. Transition's media converters allow for the PAUSE identification and pass signalling unhindered.

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Extended temperature Ethernet and Fast Ethernet media converters

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