A new introduction is the “reverse-polarised connectors”. The term is used where, for example, a standard cable plug has a female centre contact, instead of a male centre contact. Reverse-polarised con-nectors are very popular in WLAN applications and are available in three different series:

R-SMA connectors are supplied with a threaded coupling,are vibration resistant and can be used up to frequencies ofover 6 GHz (depending on type). The impedance is con-trolled at 50 ohm.

R-TNC connectors are supplied with a threaded coupling, arevibration resistant and can be used up to frequencies of over6 GHz. The impedance is controlled at 50 ohm. Connectordesigns are available for RG-58 and RG-174 cable types. There is a growing requirement for this product in the Wireless Local Area Networks sector.

R-BNC connectors are supplied with a bayonet coupling.Connector designs are available with crimp cable termi-nation.

Mating face sealing for series R-SMA and R-TNC between plug and jack (mated) meet IP68 requirements; series R-BNC meets IP54 requirements.