| 摘要 |
<p>Rack for supporting telephone switchboard relays and associated wiring is assembled from a series of modular posts carrying cantilevered 'T' shaped bars, the ends of which carry ancillary uprights to support the switch modules at the front of the rack. The bars also carry combinations of pairs of closed or spiral eyes and of vertical prongs through which the cables can easily be arranged or re-arranged horizontally and vertically throughout the rack. Pref. the eyes and the prongs are made of nylon.</p> |
