Abstract: Digital signal cross connect communication systems include a plurality of tracer circuits within a particular shelf, a plurality of shelves within a particular rack, a plurality of racks within a particular row, and, generally, a plurality of rows within the office in which the circuitry of the digital signal cross connect communication system is located. In order to facilitate a technician in determining the specific location of an engaged tracer circuit, row indicator lamps may be provided to indicate the particular row the engaged tracer circuit is located in. Also, rack lamp indicators located above each rack and shelf lamp indicators located within each shelf may also be provided to indicate the particular rack and shelf an engaged tracer circuit is located.