This cable is a 125 ohm data bus cable approved and recommendedby the Honeywell Commercial Flight Systems Group.It is an approved cable for the ASCB Data bus and Servo CANBus for the Primus EPIC/APEX Integrated Avionics system.T12243 is a primary data interface for the Honeywell/SperrySPZ-8000 DAFCS which includes EFIS, AHRS and DADC. Itis also used for CAN Bus communications for the Honeywell/Sperry Primus II Radio System.This cable is designed to simplify the termination process, pinextraction and to improve the overall quality of the installation.Designing a cable of specified impedance requires thatconductor insulation be extruded to a defined thickness,which is related to dielectric characteristics of the insulationmaterial. For this type of 125 ohm cable, the diameter ofthe insulation is typically 1-1/2 times the diameter of thecontact crimped to the wire. This large insulation diameterinterferes with extraction procedures.To solve this problem, PIC has employed a dual-layer insulation— an outer foamed fluoropolymer layer which can beremoved so that the inner solid PFA accommodates theconnector cavity for easy extraction of the contact.T12243 cable is Skydrol resistant, RoHS compliant andpasses the FAA flammability requirements of FAR Part 23and 25, Appendix F. Test results are available upon request.
