ConnectorsTo prevent improper usage of antennas that can create interference or violate the U.S. regulations, the FCC added a regulation requiring connectors used on WLAN equipment manufactured after June 1994 to be of a "unique and non-standard" format. Canada followed suit with a similar regulation. Most WLAN vendors such as Cisco worked with connector companies to produce connectors that, while maintaining a quality 50-ohm low-loss connection, met this regulation. Several companies started using a version of the popular TNC (threaded Neill-Concelman) connector that has a center conductor component reversed between the plug and jack of a regular TNC connector. This is known as a reverse-polarity TNC (RP-TNC). Although they are similar to the standard TNC connectors, they cannot be mated with a standard connector. Therefore, you need to verify that all components you are purchasing (antennas, cables, and so on) are supplied with the same connector format. |
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