| 摘要 |
Formed by a column on which there are one or a number of frames 14 which on the inside contain electronic units 9 which can be plugged into a printed-circuit board 15 arranged vertically in the rear part of each frame 14. The plug-in electronic units 9 are equipped with two male connectors 12, 13, the first connector 12 being connected directly to the station wiring via the female column-type connector, whilst the second connector 13 is connected to the corresponding female connector 16 of the vertical printed-circuit board 15 in order to make the interconnections between the various plug-in electronic units 9 included in said frame. The female column-type connectors are fixed by means of screws, which allow said connectors to float, onto a support, which is in turn screwed to the column by means of four screws. <IMAGE>
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