| 摘要 |
PROBLEM TO BE SOLVED: To attain wireless connection even to a transmission line capable of multi-drop connection and used for transmission and reception and to avoid data collision due to reception by its own stimulation in the data communication equipment using an optical communication module. SOLUTION: A data reception line receiver 3 and a data transmission line driver 4 are interposed between an optical communication module 1 and a transmission line 8. Then one-shot multivibrators 6, 7 activate a line receiver 3 and inhibit the line driver 4 and in the case of data reception, and inhibit the line receiver 3 and activate the line driver 4 and in the case of data transmission. |
