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Electrical/lightwave connection arrangement
| Details |
Inventors: McEowen, James R.;
Assignee: American Telephone and Telegraph Company (New York, NY); AT&T Information Systems Inc. (Morristown, NJ)
Primary Examiner: Sikes; William L.
Assistant Examiner: Healy; Brian M.
Attorney, Agent or Firm: Slusky; Ronald D.
A combined electrical/lightwave connection arrangement provides electrical connections via conventional contact blades and ground post and a lightwave connection via a lightwave transmission line carried within the ground post. |
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DETAILED DESCRIPTION In the present illustrative embodiment, as seen in FIGS.
1 and 2, the male portion, or plug, 10 of the electrical/lightwave connection arrangement comprises a molded housing 11 attached to a cable 15.
Carried within cable 15 are a pair of insulated copper wires 16 (only one of which is visible in the drawing) which are adapted to carry 117 VAC electricity.
Each of these wires is connected within housing 11 to a respective one of two electrically conductive, metal blades 12, which extend in parallel relation from housing 11.
As is conventional, the width of each of blades 12 is within the range 0.
240-0.
260 inches and the spacing between them is within the range 0.
495-0.
505 inches, on center.
Also carried within cable 15 is an insulated copper ground wire 17, which is connected within housing 11 to an electrically conductive, metal ground post 13.
The latter extends from housing 11 to a free end 14.
The distance from ground post 13 to each of blades 12 is nominally within the range 0.
525-0.
536 inches.
The female portion, or receptacle, 50 of the connection arrangement comprises a front piece 30, a ground bar 34 and back piece 40, which are held together by a pair of screws 51.
Formed in front piece 30 is a pair of slots 31 adapted to receive blades 12 and a D-shaped aperture adapted to receive ground post 13.
Also formed in front piece 30 is a second pair of slots 37 and a second D-shaped aperture (not visible), which are adapted to receive the blades and ground post, respectively, of a second plug (not shown).
Disposed on the rear of front piece 30 are a pair of electrically conductive, metal contacts 38 to which the wires (not shown) supplying 117 VAC potential can be connected via screws 39.
When, as shown in FIG.
3, plug 12 is inserted into receptacle 50, each one of blades 12 engages a slot 38a in a respective one of contacts 38, thereby supplying 117 VAC potential to wires 16 within cable 15.
In addition, connection of a ground wire (not shown) is made to ground bar 34 via screw 36
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I/O Systems 
