Twinax and Quadrax Connectors

Twinax and Quadrax Connectors

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.

Reference

MIL-DTL-38999 Cylindrical Connectors > Section E

257-410

257-410

Metal or Composite Ground Plane Twinax Connector
8GA • MIL-DTL-38999 Series III Type
257-411

257-411

Twinax Receptacle Connector
Jam Nut Mount • Metal or Composite
Ground Plane • 8GA • MIL-DTL-38999 Series III Type
257-414

257-414

Metal or Composite Twinax Receptacle Connector
8GA • MIL-DTL-38999 Series III Type
  • Box Mount with Standard Holes (H7)
  • Box Mount with Slotted Holes (S7)
  • Box Mount with Tapped Holes (T7)
  • Dimensions, Finish, Material and Ground Plane
Insert Arrangements (IAW MIL-STD-1560)

Insert Arrangements (IAW MIL-STD-1560)

MIL-DTL-38999 Series III Type
257-410, 257-41l and 257-414 Twinax Connectors
257-455

257-455

Box Mount Quadrax Connector
With PC Tails • MIL-DTL-38999 Series III Type
257-459 (06) or (S7)

257-459 (06) or (S7)

Plug or Wall Mount Receptacle Quadrax Connector
MIL-DTL-38999 Series III Type
257-606

257-606

MIL-DTL-38999 Series III Type
  • Wall Mount Quadrax Receptacle Connector with Slotted Holes (00)
  • Quadrax Plug Connector (G6)
  • Jam Nut Mount Quadrax Plug Receptacle Connector (07)
  • Quadrax Connector Dimensions, Finish and Ground Plane
  • Quadrax Connector Dimensions and Cut-Outs
  • Quadrax Connector Insert Arrangements
257-616

257-616

Twinax and Quadrax PC Tail Contacts
MIL-DTL-38999 Series III Type
  • Insert Arrangements
854-001 and 854-002

854-001 and 854-002

Crimp Quadrax Pin and Socket Contacts
MIL-DTL-38999 Series III Type