My TN Connection

One of the most common uses of media converters is to aid in the integration of new technology into legacy systems. This can take several forms but typically the new technology might be a new device designed to interface with fiber optic cable, and the legacy system might be an existing copper infrastructure connecting older and slower networking equipment. A legacy system is generally thought of as an existing computer system which continues to be actively used because a business or organization does not feel the need to replace the system. Since these systems are suitably performing their intended functions, they often get overlooked when it comes to regular maintenance and updates. Only when the user discovers that peripheral parts supporting these systems are no longer available, are these systems scheduled for replacement, but even then, the replacement project may not receive funding for several more years.

AUI to 10Base-T

One example of a product designed to support these active legacy system is an AUI to 10Base-T transceiver. Most new installations of Ethernet equipment are at least supporting 10/100 Mbps transmission rates, if not Gigabit speeds. So applications relying on 10Mbps 10Base-T definitely fall into the category of legacy systems. This Attachment Unit Interface (AUI) transceiver provides a method for connecting a workstation, or any other device with an AUI port, to twisted pair cabling in a 10Base-T network. These legacy devices with AUI ports could include: servers, hubs, bridges, or routers. This transceiver allows twisted pair cable to be connected to AUI ports.

10Base-2 to 10Base-T

Another high demand product in legacy networks is a 10Base-2 to 10Base-T media converter. This converter includes a BNC port for the 10Base-2 connection and an RJ-45 port for the 10Base-T connection. One application might be the integration of newer workstations, or other devices with RJ-45 interfaces, into older networks still using coax cabling in a bus topology. Another application would be just the reverse. If you have upgraded the cabling plant from coax to UTP, but you want to protect your investments in your coax based equipment, this converter will allow you to make the necessary connections between the new cabling and the legacy devices.

While it’s always fun to talk about the newest products supporting the latest IEEE standards, we shouldn’t forget about the old, reliable, workhorses in our networks and the support they require to remain a viable solution.

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