The invention relates to a
gigabit broadband isolation pseudo-synchronous digital hierarchical (PDH)
optical transmitter and
receiver, which consists of a cabinet and an
optical transmitter and
receiver circuit in the cabinet, wherein the
optical transmitter and
receiver circuit comprises a
field programmable gate array (FPGA) core module; the FPGA core module is connected with a
SerDes module, a key control module, a module for the drive and level conversion of the first to 16th paths of E1, a 1,000 M
Ethernet controller and a 100 M
Ethernet controller respectively; the
SerDes module is also connected with a
fiber interface by a
photoelectric conversion module; the module for the drive and level conversion of the first to 16th paths of E1, the 1,000 M
Ethernet controller and the 100 M Ethernet controller are connected with 1-16 paths of E1 interfaces, a 1,000 M Ethernet interface and a 100 M Ethernet interface by isolation transformers respectively; and a power conversion module is connected with each module to supply working power to the modules. The
gigabit broadband isolation PDH optical
transmitter and receiver has a
rational design, fully utilizes
optical fiber resources, solves the problems of insufficient bandwidth and
network data security of the conventional Ethernet, well realizes the
fiber optic communication function of combining together E1 data channels and two paths of Ethernet data channels, avoids the waste of communication resources and saves the communication cost.