A transport apparatus comprising: a client signal transceiving unit (11-1, 11-2, 11-3) configured to receive and transmit a client signal; and a line signal transceiving unit (17-1, 17-2) configured to perform electric-optic conversion on a line signal to be transmitted, transmit an optical line signal, perform optic-electric conversion on a received line signal, and output an electrical line signal; the transport apparatus being characterized in that: it comprises a plurality of signal processing units (10-1, 10-2) configured to perform signal processing on the client signal to generate the line signal to be transmitted and to perform signal processing on the electrical line signal to generate the client signal, each of the plurality of signal processing units comprises a signal transceiving unit (14, 15-1, 15-2), a branched signal obtained by branching a signal that is obtained in the signal processing and a merged signal obtained by merging received signals are transferred between the signal transceiving unit (14, 15-1) of one of the plurality of signal processing units and the signal transceiving unit of another signal processing unit among the plurality of signal processing units, and the signal transceiving unit of the one of the plurality of signal processing units and the signal transceiving unit of the other signal processing unit are coupled via an inter-chip wiring. a client signal transceiving unit (11-1, 11-2, 11-3) configured to receive and transmit a client signal; and a line signal transceiving unit (17-1, 17-2) configured to perform electric-optic conversion on a line signal to be transmitted, transmit an optical line signal, perform optic-electric conversion on a received line signal, and output an electrical line signal; the transport apparatus being characterized in that: it comprises a plurality of signal processing units (10-1, 10-2) configured to perform signal processing on the client signal to generate the line signal to be transmitted and to perform signal processing on the electrical line signal to generate the client signal, each of the plurality of signal processing units comprises a signal transceiving unit (14, 15-1, 15-2), a branched signal obtained by branching a signal that is obtained in the signal processing and a merged signal obtained by merging received signals are transferred between the signal transceiving unit (14, 15-1) of one of the plurality of signal processing units and the signal transceiving unit of another signal processing unit among the plurality of signal processing units, and the signal transceiving unit of the one of the plurality of signal processing units and the signal transceiving unit of the other signal processing unit are coupled via an inter-chip wiring. it comprises a plurality of signal processing units (10-1, 10-2) configured to perform signal processing on the client signal to generate the line signal to be transmitted and to perform signal processing on the electrical line signal to generate the client signal, each of the plurality of signal processing units comprises a signal transceiving unit (14, 15-1, 15-2), a branched signal obtained by branching a signal that is obtained in the signal processing and a merged signal obtained by merging received signals are transferred between the signal transceiving unit (14, 15-1) of one of the plurality of signal processing units and the signal transceiving unit of another signal processing unit among the plurality of signal processing units, and the signal transceiving unit of the one of the plurality of signal processing units and the signal transceiving unit of the other signal processing unit are coupled via an inter-chip wiring.