Hawaiian Tel has contracted with TeleCable Systems to upgrade the distribution infrastructure at the summit. A new copper telephone trunk cable and two subducts will be installed in one of the 4-inch conduits beginning at the Summit Utility Room and extending all the way around the summit to handhole 31, which is between CSO and the batch plant. Hawaiian Tel will then install its own fiber optic trunk cable in one of the subducts. There are only two conduits between CFHT and Keck-- one contains the existing copper trunk cable, and the other contains the MKOCN fiber. In order to clear out the former so that the new trunk and subducts can be installed, temporary telephone service will be provided to Subaru, Keck and IRTF from handhole 31, using spare circuits which go to millimeter valley. If all goes according to plan, there will be no interruption in telephone service.
Clayton Yugawa invited each facility to contact him concerning their communications requirements and asked that they provide details of the number and location of conduits leading into their building.