Fiber optic plug assembly with boot and crimp band
View Patent ↗A fiber optic plug assembly of a fiber optic connector assembly is provided and generally includes a fiber optic plug mounted upon an end of a fiber optic cable; a pre-molded boot placed over the fiber optic plug and the fiber optic cable; and a crimp band mated over the pre-molded boot to secure the boot to the fiber optic cable; wherein the fiber optic plug assembly is operable to mate to a fiber optic receptacle. The plug assembly eliminates the need for an overmolded boot. Further, the present invention eliminates the need to perform a heat shrink between the buffer tube and crimp body through the internal O-ring. The plug assembly meets the standards of GR-3120-CORE while at the same time providing a simpler hardware package that can be assembled with ordinary connectorization tools.
1. A fiber optic assembly, comprising:
a fiber optic plug mounted upon an end of a fiber optic cable;
a pre-molded boot placed over the fiber optic plug and the fiber optic cable;
a crimp band mated over the pre-molded boot to secure the boot to the fiber optic cable;
a buffer tube at the end of the fiber optic cable;
an O-ring located on the buffer tube; and
an O-ring pusher tube located on the buffer tube behind the O-ring relative to the end of the fiber optic cable, wherein the pusher tube is operable to seat the O-ring between the buffer tube and a crimp body created by the crimp band and pre-molded boot.
2. The fiber optic assembly of claim 1 , wherein the pre-molded boot defines an opening therethrough for introducing adhesive.
3. The fiber optic assembly of claim 1 , wherein the assembly meets GR-3120-CORE specifications.
4. The fiber optic assembly of claim 1 , wherein the boot and crimp band provide sealing and strain relief such that the plug assembly meets GR-3120-CORE specifications.
5. The fiber optic assembly of claim 1 , further comprising a strength element engaged between the crimp band and the pre-molded boot.
6. A fiber optic plug assembly, comprising:
a buffer tube upon an end of a fiber optic cable;
a plug sub-assembly mounted upon the end of the fiber optic cable over the buffer tube;
an O-ring located on the buffer tube;
an O-ring pusher tube located on the buffer tube behind the O-ring relative to the end of the fiber optic cable, wherein the pusher tube is operable to seat the O-ring between the buffer tube and the plug sub-assembly;
a pre-molded boot placed over the plug sub-assembly and the fiber optic cable; and
a crimp band mated over the pre-molded boot to secure the boot to the fiber optic cable.
7. The fiber optic plug assembly of claim 6 , further comprising:
the pre-molded boot secured over a rear portion of the plug sub-assembly and an end of the fiber optic cable; and
a glue body material injected between the buffer tube and a crimp body.
8. The fiber optic plug assembly of claim 6 , wherein the fiber optic plug assembly meets GR-3120-CORE specifications.
9. A fiber optic plug assembly, comprising;
a plug sub-assembly mounted upon a fiber optic cable;
a plug outer housing located substantially over the plug sub-assembly;
a pre-molded boot located substantially over the plug sub-assembly and the fiber optic cable;
a crimp band mated over the pre-molded boot to secure the boot to the fiber optic cable and to seal the fiber optic plug;
a buffer tube at the end of the fiber optic cable;
an O-ring located on the buffer tube; and
an O-ring pusher tube located on the buffer tube behind the O-ring relative to the end of the fiber optic cable, wherein the pusher tube is operable to seat the O-ring between the buffer tube and a crimp body created by the crimp band and pre-molded boot.
10. The fiber optic plug assembly of claim 9 , wherein the plug assembly meets GR-3120-CORE specifications.
11. The fiber optic plug assembly of claim 9 , further comprising a coupling nut located over the plug outer house and operable to mate with a fiber optic receptacle.
12. The fiber optic plug assembly of claim 9 , wherein the pre-molded boot defines an opening therethrough for introducing adhesive.