| 摘要 |
<p>A panel board (3) including interconnections and connectors (10a, 10b, 10c, ...) engageable removably with I/O units (4a, 4b, 4c, ...) inclusive of a transmitter and a receiver. When engaged with one of the connectors on the panel board (3) the I/O unit (4) is connected with the interconnections on the panel board (3). <IMAGE></p> |
