Remote firing system for non-electric detonators using electronic initiators

A firing system comprising an electronic initiator (1), and a blasting unit (10) connected to and capable to initiate the electronic initiator (1), wherein the electronic initiator (1) comprises an external housing (2) made of plastics,an explosive charge (5), a fuse head (3) and an electronic delay element (4), the external housing (2) comprising an inner cavity and retaining means adapted to retain at least one shock tube, the explosive charge (5), the fuse head (3) and the electronic delay element (4) being located in the inner cavity of the external housing (2), the explosive charge (5) being located at a closed end of the inner cavity, at a position such that the explosive charge (5) is capable to ignite the shock tubes retained by the retaining means in a use situation of the electronic initiator (1), the fuse head (3) and the explosive charge (5) being located relative to each other such that the fuse head (3) is capable to ignite the explosive charge (5),and the electronic delay element (4)being connected to the fuse head (3) and being configured to initiate it.