| 摘要 |
PURPOSE:To carry out the inspection and the test of the respective channel of the information equipments by one set of connection device and shorten the test time by automatically switching the plurality of channels and one set of connection device without changing the specification of the interface. CONSTITUTION:The device to be tested 100 and one set of connection device 200 are connected by a channel automatic switching device 300, the respective channel 101 of the device 100 and the interface receiving and driving circuit of the switching device 300 are connected through the corresponding connection cable 102, and the interface receiving and driving circuit 2 of the switching device 300 is connected to the connection device 200. By the information transmission recognition device 3 disposed in the switching device 300, whether the signal or the information transmitted through the circuit 2 and the channel selection swiching circuit 4 is effective or not is recognized, the respective signals are transmitted to the circuit 4 and the control circuit 5, then the channel of the circuit 1 is selected by the circuit 4 and the automatic switching of the channel is done under the control of the circuit 5. |
