A technique for hot deployingredeploying applications in a grid computing environment to improve operating efficiency and reduced overhead. This layer is non-porous, conducting only lithium ions during operation, and may be structurally free-standing. The operating principles and some characteristics of the DWDM demultiplexer are described. The method includes with the first switch closed and the second switch open, measuring a voltage Vprtp between the bus and the ground and measuring a voltage Vnrtp between the ground and the second terminal.