An apparatus for remote switching, comprising: a light water reactor; a control station; an enclosure positioned in a radiation field of the light water reactor, comprising: an outer surface; a cavity formed by the outer surface; a first wall; a second wall; one or more input connectors mounted to the first wall; and one or more output connectors mounted to the second wall; a signal switching device housed within the cavity of the enclosure, comprising: at least one printed circuit board; and a plurality of relay switches mounted to the at least one printed circuit board; two or more signal generating/receiving devices; one or more umbilical signal cables correspondingly connected to the one or more input connectors, to remotely control the plurality of relay switches of the signal switching device from the control station; and one or more output cables correspondingly connected to the one or more output connectors and the two or more signal generating/receiving devices, to remotely switch the two or more signal generating/receiving devices from each of the one or more umbilical signal cables a light water reactor; a control station; an enclosure positioned in a radiation field of the light water reactor, comprising: an outer surface; a cavity formed by the outer surface; a first wall; a second wall; one or more input connectors mounted to the first wall; and one or more output connectors mounted to the second wall; a signal switching device housed within the cavity of the enclosure, comprising: at least one printed circuit board; and a plurality of relay switches mounted to the at least one printed circuit board; two or more signal generating/receiving devices; one or more umbilical signal cables correspondingly connected to the one or more input connectors, to remotely control the plurality of relay switches of the signal switching device from the control station; and one or more output cables correspondingly connected to the one or more output connectors and the two or more signal generating/receiving devices, to remotely switch the two or more signal generating/receiving devices from each of the one or more umbilical signal cables an outer surface; a cavity formed by the outer surface; a first wall; a second wall; one or more input connectors mounted to the first wall; and one or more output connectors mounted to the second wall; a signal switching device housed within the cavity of the enclosure, comprising: at least one printed circuit board; and a plurality of relay switches mounted to the at least one printed circuit board; two or more signal generating/receiving devices; one or more umbilical signal cables correspondingly connected to the one or more input connectors, to remotely control the plurality of relay switches of the signal switching device from the control station; and one or more output cables correspondingly connected to the one or more output connectors and the two or more signal generating/receiving devices, to remotely switch the two or more signal generating/receiving devices from each of the one or more umbilical signal cables at least one printed circuit board; and a plurality of relay switches mounted to the at least one printed circuit board; two or more signal generating/receiving devices; one or more umbilical signal cables correspondingly connected to the one or more input connectors, to remotely control the plurality of relay switches of the signal switching device from the control station; and one or more output cables correspondingly connected to the one or more output connectors and the two or more signal generating/receiving devices, to remotely switch the two or more signal generating/receiving devices from each of the one or more umbilical signal cables