There is provided a wiring substrate manufacturing method. The coextrusion adapter has a central conduit with an end at an inlet side for connecting an extruder and an end at an outlet side for connecting the tool. A suction mechanism, which produces an airstream sucking in the fibers, is provided to suck the fibers through the feed opening into the housing bores. The Terminal communicates with the Controller by re-transmitting \u201ccarrier\u201d chirp signals which have been sent to it by the Controller. The distribution amplifier with intellectual signaling may effectively display whether the distribution amplifier operates normally or not according to the above-mentioned arrangement. The processor may additionally be configured to provide the first user’s current location to a second user.