| 摘要 |
<p>A communication device includes a case (10) approximately in a shape of box, data circuit-terminating equipment (500) contained in the case (10) for connecting with a radio packet communication network, and a circuit board provided with a circuit for connecting data terminal equipment and the data circuit-terminating equipment (500) each other and mounted with the data circuit-terminating equipment, in which the circuit board includes a main circuit board (300) including a first interface circuit (351) for connecting with data terminal equipment and a circuit (352) for intervening communication between the data terminal equipment and the data circuit-terminating equipment, and an auxiliary circuit board (400) including a second interface circuit (451) for connecting the data circuit-terminating equipment (500) and the main circuit board (300), and the data circuit-terminating equipment (500) is mounted on the auxiliary circuit board (400).</p> |
