| 摘要 |
PURPOSE:To save test man-hour by scrambling a data from an error rate measuring device supplied to a channel other than a channel to be tested to eliminate the correlation between data, thereby recognizing the presence corresponding to a data line at the same time of measurement of the rate. CONSTITUTION:In testing whether or not a terminal 2 of a transmission section 12 of a radio equiment and a terminal 2 of a reception section 13 are connected normally, the connection between the terminal 2 of a scramble generator 8 and an exclusive OR circuit 7 is disconnected and a terminal 1 and an exclusive OR circuit 6 are connected. Then data inputted to the terminals 1, 2 of the transmission section 12 of radio equipment it made different. When the wire of a data line of a reception section 13 of the radio equipment is replaced in dotted lines, since the error rate measuring device 4 shows that the data extracted from the terminal 2 of the reception section 13 of the radio equipment is almost in error, the replacement of the data line between the transmission section 12 and the reception section 13 is discriminated. |
