Methods and apparatus for fiber-optic modules with shielded housings/covers with fingers
First Claim
1. A method of assembling an opto-electronic module comprising:
- forming a shielded housing with an open end, the shielded housing formed out of a sheet of conductive material to provide electromagnetic radiation shielding and protection of components, the shielded housing including one or more fingers to couple the shielded housing to ground;
assembling optical, electrical and optical-electrical components into a chassis to form a subassembly;
inserting the subassembly into the open end of the shielded housing, the shielded housing around the subassembly; and
closing the open end of the shielded housing to hold the subassembly and the shielded housing assembled together including folding a strap and a septum of the shielded housing, the strap folded across the open end to strap the subassembly into the shielded housing, the septum folded into the open end to couple to the bottom side of the shielded housing to hold the subassembly strapped into the shielded housing.
6 Assignments
0 Petitions
Accused Products
Abstract
A fiber-optic module having a housing/shielding unit and a module chassis frame having optical, electrical and electro-optical components. The housing/shielding unit functions both as a protective outer housing and an electromagnetic shield. The housing/shielding unit includes forward fingers for a flush mounting in one embodiment and backward fingers for an extended mounting in another embodiment. The fingers can contact a bezel, faceplate or wall of host system to ground the housing/shielding unit to a chassis ground. The module chassis frame may be formed of a conductive material and grounded as well through a host system faceplate or otherwise to the chassis ground. A transmit ground for transmitter components and a receive ground for receiver components are isolated from the chassis ground.
361 Citations
14 Claims
-
1. A method of assembling an opto-electronic module comprising:
-
forming a shielded housing with an open end, the shielded housing formed out of a sheet of conductive material to provide electromagnetic radiation shielding and protection of components, the shielded housing including one or more fingers to couple the shielded housing to ground;
assembling optical, electrical and optical-electrical components into a chassis to form a subassembly;
inserting the subassembly into the open end of the shielded housing, the shielded housing around the subassembly; and
closing the open end of the shielded housing to hold the subassembly and the shielded housing assembled together including folding a strap and a septum of the shielded housing, the strap folded across the open end to strap the subassembly into the shielded housing, the septum folded into the open end to couple to the bottom side of the shielded housing to hold the subassembly strapped into the shielded housing. - View Dependent Claims (2, 3, 4, 5, 6)
-
-
7. A method to assemble an EMI shielding module comprising:
-
forming a plurality of substantially equidistant spring fingers along an edge of a flat sheet;
forming a strap at the edge of the flat sheet and a septum on the end of the strap;
forming a pair of bottom flaps in the flat sheet;
folding the flat sheet along axes to form a container substantially in the shape of rectangular box, the rectangular box having a first end and a second end, the first end having the plurality of finger along each of a plurality of edges and an opening for cable connectors, the second end having a backside flap;
folding the strap across the opening for cable connectors; and
coupling the septum to inner surfaces of the bottom flaps to hold the strap across the opening. - View Dependent Claims (8, 9)
-
-
10. A method to assemble an optical transmitter and/or receiver, the method comprising:
-
forming a plurality of fingers, a strap, and a septum along a first edge of a conductive sheet;
placing the conductive sheet on a module chassis frame, the module chassis frame having a plurality of components used in transmitting and/or receiving optical signals;
folding the conductive sheet around the module chassis frame such that the conductive sheet substantially encloses the module chassis frame but for a frontal opening adjacent to the first edge; and
bending the strap and the septum around a front end of the module chassis frame to hold the folded conductive sheet and the module chassis frame together. - View Dependent Claims (11, 12, 13, 14)
-
Specification