Model 91P – To terminate two core round waterproof insulated cable conforming to FAA specification L-823, style 5 when field assembling a secondary extension lead, or terminating a fixture lead.
Model 91R – To terminate two core round waterproof insulated cable with a receptacle (female) connector conforming to FAA specification L-823, style 12 when field assembling a secondary extension lead, or when repairing a transformer secondary lead.