Geometrical instruments
Patent
1985-07-15
1986-10-21
Abrams, Neil
Geometrical instruments
179 98, 339 17LM, 339128, 361428, H04Q 114, H01R 909, H01R 2500
Patent
active
046181946
ABSTRACT:
A connecting block for a digital cross connect system has printed wiring circuit boards to interconnect terminals on the rear surface with jacks and terminals on the front surface. The terminals on the front surface are multipled to jack appearances also on the front surface of the connecting block. The connecting block has a pedestal which sits on a lower crossarm of a frame. The upper surface of the connecting block has a resilient tang which snaps into an upper crossarm of the frame. The tang is depressed with a screw driver or the like to disengage it from the upper crossarm. The connecting block is suspended by the anterior section of the pedestal from a panel located in front of the lower crossarm to expose the terminals on the rear surface. Conductors in cables to and from digital systems are then terminated on the rear terminals.
REFERENCES:
patent: 3509297 (1970-04-01), King
patent: 4146755 (1979-03-01), Causse
patent: 4235501 (1980-11-01), Ericsson
patent: 4260856 (1981-04-01), Saligny
patent: 4269463 (1981-05-01), Beatenbough
patent: 4536052 (1985-08-01), Baker et al.
Switchcraft DSX Jackfield-NPB 375, Switchcraft, Inc., 1984, Chicago, Ill., pp. 1-4.
Abrams Neil
AT&T Bell Laboratories
Nimtz Robert O.
Roberts Patrick E.
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