ATM switch matrix having a passive optical core

摘要

The asynchronous transfer mode switching network has a passive optical center (Sum1..p) and n output ports (OP1..OPn) each with a memory board (Qj). Each input port (IPi) is coupled to a matrix input and there are p outputs. Each input has a tuneable light source (Lid) and an output router (Si1..Sip). A tuning input (TM) commands the light source.