Communication system, optical transmission device, and communication method

Abstract

A communication system for transmitting and receiving signals between an automated guided vehicle and a load port of a substrate processing device includes a first communication unit having a plurality of first communication parts configured to perform optical communication with the automated guided vehicle and connected to each other via a first communication line, and a second communication unit having a plurality of second communication parts respectively connected to a plurality of load ports and connected to each other via a second communication line. The plurality of first communication parts each constitute a pair with a predetermined one of the plurality of second communication parts. Also, one of the plurality of pairs is set as a communication pair, and signals are transmitted and received between the plurality of first communication parts and the plurality of second communication parts via the communication pair.

Dependencies are inferred from the claim text.