The Gentex CRU-94/P Integrated Terminal Block (ITB) is an integral component of the Gentex Aircrew Fixed Wing Combat Edge Helmet System providing pressure breathing for G (PBG) capability to tactical aircrew, which reduces the probability of G-induced loss of consciousness (GLOC) during high performance flight.
The CRU-94/P ITB is specifically designed to distribute pressurized breathing gas from the aircraft-mounted regulator to the pilot's oxygen mask and bladders, located in the vest and lightweight Gentex HGU-55/P Helmet System, which is specially configured for Combat Edge. The unit coordinates with the Gentex MBU-20/P Oxygen Mask and its cast aluminum body interfaces with the standard parachute harness and features two outlet ports to supply breathing gas to the mask and vest bladder during PBG. When the hose is not connected, it is equipped to relieve pressure within the ITB, and a vest outlet port connects to the vest supply hose using a 4-pin connector.
The ITB features two inlet ports: a breathing gas inlet which incorporates the standard Aircraft Supply Quick-Disconnect with restrictor valve and spring loaded relief valve installed; and a standard Emergency Oxygen inlet port.
- Reduces probability of G-induced GLOC.
- Distributes pressurized breathing gas from the regulator to the pilot's mask and bladders.
- Cast aluminum body interfaces with standard parachute harnesses.
- Two outlet ports supply breathing gas to mask and vest bladder during PBG.