Reverse polarity SMA (RP-SMA or RSMA) is a variation of the SMA connector specification which reverses the gender of the interface. The term "reverse polarity" here refers only to the gender of the connector's contact pin, not in any way to the signal polarity. RP-SMA connectors were introduced to separate professional and commercially available equipment, preventing unintentional or intentional connection of high-gain professional antennas with SMA connector and commercial wireless equipment with RP-SMA connector, violating federal or international laws. Lighthorse Technologies manufactures both SMA Connectors & RP-SMA Connectors.