Patent ID: 6719568
Filing Date: 2004-04-13
Classification: G02B,H05K

Abstract:
An optical transmitting and receiving circuit unit used for conversion between an electric signal and an optical signal in an electric/optical information communication unit comprising:a plurality of circuit boards disposed at optional angles; and a first module on which an electric circuit element and an optical circuit element for a plurality of channels are mounted, and which have conversion function between electric and optical signals, a second module on which an electric circuit element for a plurality of channels is mounted, and which has input/output interface function between transmitting and receiving signals, said first module being provided, on its end face not connected to any of said circuit boards, with an optical connection structure for connecting said first module to an external device, said first and second modules being bonded to each of two or more circuit boards selected from said plurality of circuit boards, said second module being connected and fixed to each of said two or more circuit boards through an electric connection terminal between said two or more circuit boards.