While AMR platoon commanders used an AVIS-1 vehicle with an ER29 radio set — in theory 57 were equipped with one, though in practice it was often absent — squadron commanders were in need of a vehicle with two sets: one to communicate with the platoons, the second to contact higher command levels. On 15 June 1934 Renault was asked to design a single prototype, to be delivered before 1 February 1935. On 15 October 1934 a second was demanded and eventually in 1934 eight such vehicles were part of the first order, N° 87438 - 87445. The second order in 1936 included a further five vehicles, N° 95870 - 95874, bringing the total to thirteen.