| 摘要 |
PURPOSE:To make the discrimination of defective goods easy and to improve the working efficiency, by connecting a virtual signal test section to a plurality of devices to be tested via a control system and monitoring transmission and reception sequentially. CONSTITUTION:A virtual signal test section 4 has the function of transmission and reception for sequence provided to transmission systems A1 and B1, and reception systems A2 and B2 of devices A and B to be tested. That is, the section 4 is connected to the device A or B to be tested via a connecting means 2. A control means 3 is connected to the means 2 and monitors the sequence of the transmission and reception between the devices A and B to be tested to discriminate whether there is any failure or not. If there is any failure, control is made so that one device to be tested can be connected to the virtual signal test section 4. |
