A method of aligning the end of an array of optical fibers 27, such as ribbon fiber, with waveguides 33 in an optical device 31, such as an active semiconductor optical device. A network routing graph is created by an inventory subsystem in a routing manager by inventorying the physical network elements and links in the network. Coaxially with the inner conductor is disposed in a hollow space at least one pair of two lines, which form a connection between inner conductor and housing. In some aspects the timing of different states may be correlated.