| 摘要 |
PURPOSE:To facilitate wiring among work stations to easily cope with the layout change by using space transmission units provided correspondingly in 1:1 in work station groups and on a ceiling to transmit data among work stations. CONSTITUTION:Space transmission units 11 to 13 and the same space transmission units provided correspondingly in 1:1 in work station groups 211 to 213, 221 to 223, and 223 to 233 and on the ceiling are used to transmit data between one station and another out of work station groups 211 to 213, 221 to 223, and 231 to 233. Consequently, data is transmitted even between work stations 2 constituting work station groups 211 to 213, 221 to 223, and 231 to 233 by an optical pulse signal. Thus, a problem does not occur when wiring to space transmission units for terminal of work stations 2 is difficult, and the layout change in an office or the like is easily coped with. |
