A networked initiation system (100, 200, 300, 400), comprising: a control unit (108, 208, 312, 416); at least one hold-down and release mechanism (104, 204, 304, 404), the so-called HDRM, configured to hold in place an element and to release the held element upon receipt of an activate command from the control unit (108, 208, 312, 416); a first circuitry associated with each of the at least one HDRM (104, 204, 304, 404), respectively, the first circuity arranged for arming and firing the at least one HDRM (104, 204,304,404) associated with the first circuitry, the first circuity addressable by the control unit (108, 208, 312, 416); at least one additional HDRM configured to hold in place at least one additional element and to release the held at least one additional element upon receipt of an activate command from the control unit (108, 208, 312, 416); a second circuity associated with each of the at least one additional HDRM, respectively, the second circuity arranged for arming and firing the at least one additional HDRM associated with the second circuitry, the second circuity addressable by the control unit (108, 208, 312, 416); and an interface bus (112, 212, 316, 412) configured to connect together the control unit (108, 208, 312, 416), the first circuity, and the second circuity, to provide power from the control unit (108, 208, 312, 416) to each HDRM and each circuity, and to communicate between the control unit (108, 208, 312, 416) and each HDRM and circuity, wherein an energetic HDRM (206, 216, 220) is at least one of explosive and pyrotechnic, and a non-energetic HDRM (104, 204, 304, 404) is neither explosive nor pyrotechnic, wherein the first circuitry and the second circuitry each is uniquely identifiable for communication with the control unit (108, 208, 312, 416), characterised in that the at least one HDRM is a non-energetic HDRM. a control unit (108, 208, 312, 416); at least one hold-down and release mechanism (104, 204, 304, 404), the so-called HDRM, configured to hold in place an element and to release the held element upon receipt of an activate command from the control unit (108, 208, 312, 416); a first circuitry associated with each of the at least one HDRM (104, 204, 304, 404), respectively, the first circuity arranged for arming and firing the at least one HDRM (104, 204,304,404) associated with the first circuitry, the first circuity addressable by the control unit (108, 208, 312, 416); at least one additional HDRM configured to hold in place at least one additional element and to release the held at least one additional element upon receipt of an activate command from the control unit (108, 208, 312, 416); a second circuity associated with each of the at least one additional HDRM, respectively, the second circuity arranged for arming and firing the at least one additional HDRM associated with the second circuitry, the second circuity addressable by the control unit (108, 208, 312, 416); and an interface bus (112, 212, 316, 412) configured to connect together the control unit (108, 208, 312, 416), the first circuity, and the second circuity, to provide power from the control unit (108, 208, 312, 416) to each HDRM and each circuity, and to communicate between the control unit (108, 208, 312, 416) and each HDRM and circuity, wherein an energetic HDRM (206, 216, 220) is at least one of explosive and pyrotechnic, and a non-energetic HDRM (104, 204, 304, 404) is neither explosive nor pyrotechnic, wherein the first circuitry and the second circuitry each is uniquely identifiable for communication with the control unit (108, 208, 312, 416), characterised in that the at least one HDRM is a non-energetic HDRM.