[Features]• These insulated receptacles are panel mounted and connected to BNC series (plug) connectors.· Reliable insulation is achieved between the external conductor of the connector and the panel.▪ The ground terminal is connected to the external conductor and integrated with the mold adjacent to the central conductor. Hence, it is easy to handle.• The round-pin contact types (31-10-CF and 31-10-CAu-CF) are UL-listed (UL File No. E72124).