| 摘要 |
The invention relates to an installation aid for 5005 Xbar System exchanges to enable a considerable amount of cabling work to be carried out even before racks and suites are installed. The proposal makes use of wiring-biscuits, or plates formed from rigid plastics sheet, each comprising a "break-off" perforated strip for each row of the terminal block and each strip having its perforations at the same centers as the tags or terminals of a row. The method of operating on the end of a cable involves the mounting of the plate in a location close to the position occupied by or to be occupied by the terminal block, the threading of the insulated wires of the cable through particular holes of the plate, the eventual separation of a strip from the plate, the placing of that strip upon a requisite row of terminals of the duly located terminal block so that one wire and one terminal emerge from some or all of the perforations, and then the establishment of gun-wrapped connections between each said terminal and wire. The strip is finally removed but can only be done if no "cross-overs" have been introduced. |
