High density coaxial switching jack
A coaxial switching jack with a pair of coaxial assemblies mounted within a housing having a pair of front openings. The coaxial assemblies each include a center conductor and a shell conductor. The center conductors are connected by a first spring and the shell conductors are connected by a second spring. Insertion of a coaxial cable connector within one of the front openings deflects the springs from the corresponding coaxial assembly and disconnects the center and shell conductors of the two assemblies. The jack may also be configured to provide an electrical connection between the center and shell conductors of the second coaxial assembly if a coaxial cable connector is inserted within the first coaxial assembly. The connection between the center and shell conductors of the second coaxial assembly may allow for selection of a desired electrical impedance.
1. A coaxial switching jack comprising:
a housing including a pair of rear cable connection locations and a pair of front cable connection locations, each front cable connection location configured to receive a mating coaxial cable connector, the housing including an open side and a cover positioned to cover the open side, the cover and the housing cooperating to define an interior, the housing further including a tab and an opposing cantilevered latch extending from an exterior of the housing, the tab and the cantilever latch configured to mount the housing to a piece of telecommunications equipment with a snap-fit interlock;
a pair of coaxial assemblies mounted within the housing, each coaxial assembly including a center conductor and an outer shell conductor, the center conductors of the coaxial assemblies being electrically connected to each other and the outer shell conductors of the coaxial assemblies being electrically connected to each other;
a resistor assembly mounted to the housing, the resistor assembly including a resistor, wherein a resistance level provided by the resistor assembly can be changed from the exterior of the housing without removing the cover from the housing;
a switch selectively disconnecting the center conductors and the outer shell conductors, respectively, wherein insertion of the mating coaxial cable connector into one of the front cable connection locations removes the center conductor of a corresponding coaxial assembly from electrical contact with the center conductor of the other coaxial assembly and removes the outer shell conductor of the corresponding coaxial assembly from electrical contact with the outer shell conductor of the other coaxial assembly, and electrically connects a center conductor of the mating coaxial cable connector with the center conductor of the corresponding coaxial assembly and electrically connects an outer shell conductor of the mating coaxial cable connector with the outer shell conductor of the corresponding coaxial assembly;
wherein once the mating coaxial cable connector is inserted into one of the front cable connections to engage the corresponding coaxial assembly, the outer shell conductor and the center conductor of the other coaxial assembly are electrically connected through the resistor of the resistor assembly.
2. A coaxial switching jack according to claim 1 , wherein the resistor assembly may be configured to electrically isolate the outer shell conductor and the center conductor of the non-mated coaxial assembly.
3. A coaxial switching jack according to claim 1 , wherein the resistance level provided by the resistor assembly is about 75 ohms.
4. A coaxial switching jack according to claim 1 , further comprising the mating coaxial cable connector inserted into one of the front cable connection locations engaging the corresponding coaxial assembly, wherein the outer shell conductors of the mating coaxial cable connector and the corresponding coaxial assembly form a continuous cylinder about the center conductors of the mating coaxial cable connector and the corresponding coaxial assembly adjacent the front cable connection location of the housing.
5. A coaxial switching jack according to claim 1 , further comprising a jack spring assembly between the coaxial assemblies, the center conductors of the coaxial assemblies being electrically connected to each other and the outer shell conductors of the coaxial assemblies being electrically connected to each other through the jack spring assembly when the mating coaxial cable connector is not inserted into one of the cable connection locations.
6. A coaxial switching jack according to claim 5 , wherein the jack spring assembly includes a first conductive spring mounted within the housing, the first spring including a first arm and a second arm, each arm of the first conductive spring contacting a center conductor of each of the coaxial assemblies, each arm of the first conductive spring including an insulative pad which a front portion of the mating coaxial cable connector contacts to deflect the first conductive spring away from the center conductor of the corresponding coaxial assembly and wherein the insulative pad prevents the mating coaxial cable connector from electrically contacting the first conductive spring.
7. A coaxial switching jack according to claim 1 , wherein each coaxial assembly has a first end adjacent one of the front cable locations and a second end adjacent one of the rear cable connection locations.