Patent ID: 8690455

Claim:
Apparatus, comprising: an optical Input/Output (I/O) connector, which has a central axis that is mounted in a plane and which is configured to connect to external optical fibers for transferring input optical signals to the apparatus and output optical signals from the apparatus; a first optical ferrule, which is mounted perpendicularly to the optical I/O connector in the plane, and is configured to transfer the input optical signals from the optical I/O connector to respective optical detectors; a second optical ferrule, which is mounted perpendicularly to the optical I/O connector in the plane, and is configured to transfer the output optical signals from respective optical emitters to the optical connector; a light rotation module, which is configured to bend and transfer the input and output optical signals between the optical I/O connector and the perpendicularly-mounted first and second optical ferrules; and a U-shaped Printed Circuit Board (PCB), which is formed so as to have first and second parallel faces, such that the optical detectors are mounted on the first face opposite the first optical ferrule and the optical emitters are mounted on the second face opposite the second optical ferrule.