A connector tow for providing external electrical access to an electrical device embedded within a composite structure. The connector comprises a plurality of tubes disposed between a pair of opposed film layers. The film layers are adhered to opposite sides of the plurality of tubes and can be comprised of an insulating material so as to electrically isolate the plurality of tubes. By extending through the edge surface of the composite structure, the electrical ports can be accessed during the fabrication of the a composite structure such that the operations of the embedded electrical device can be monitored.