A method for using a multi-welled micro-plate in radioimmunoassay is disclosed to improve the performance of RIA. Although the multi-path management software on an end-point device may operate independently, it may also cooperate with the local communication applications and the multi-path management software located on the access points or other network nodes to select one or more pathways for the local communication applications. The wiring electrodes 23 and 24 include connection portions 23a and 24a. The indication may be a visual indication, e.