Glenair is recognized as trusted supplier of harsh environment electrical connectors built to the MIL-DTL-38999 standard. Both quadrax and twinax appear to have unique but equally beneficial qualities. The quadrax connector has four pins connected to a single cable, providing two-way Ethernet data communications. The twinax connector with two pins, provides one-way communication. Two twinax connectors and two wires are required for two-way communications which adds up to about 50% more weight than a quadrax connection. Twinax connectors have proven to be highly reliable and easy to maintain. Quadrax connectors are more difficult to maintain in the field and are yet to be thoroughly proven for reliability. Depending on the application, the end user will prefer one or the other (for example, Airbus prefers Quadrax while Boeing prefers twinax) which is why Glenair offers both.
Available Insert Arrangements
Based on industry-standard specifications, Glenair’s MIL-DTL-38999 derivative environmental class connector systems are supplied with insert arrangements IAW MIL-STD-1560, or appropriate sub-sets depending on connector series. Consult factory for available insert arrangements.
MIL-DTL-38999 Cylindrical Connectors > Section E