Fiber-optic modules with shielded housing/covers having mixed finger types

A fiber-optic module comprising:

• a chassis having a pair of optical connector receptacles at one end and a pair of walls coupled to a base at an opposite end, the pair of walls having slots on inside surfaces, the pair of optical connector receptacles having a rectangular opening along the width of the chassis, the base having one or more pin openings;
• a printed circuit board coupled into the slots in the pair of walls of the chassis, the printed circuit board having one or more pins in the one or more pin openings in the base of the chassis, the printed circuit board having electrical components to process electrical signals of the one or more pins;
• a pair of opto-electronic components having pins coupled to traces of the printed circuit board at an edge, the traces coupled to at least one of the one or more pins and the electrical components of the printed circuit board, the pair of opto-electronic components to process electrical and optical signals;
• a pair of optical connectors each having an optical port with a lens, a flange, a snap lock clip, a ferrule barrel, and a recess between the optical port and the flange, the pair of optical ports of the pair of optical connectors coupled to the pair of opto-electronic components respectively at one end and each of the snap lock clip and the ferrule barrel inserted into the respective pair of optical connector receptacles of the chassis at an opposite end;
• a plate having a pair of u-shaped openings and a flap, the plate inserted into the rectangular opening of the chassis, the u-shaped openings of the plate engaging the recess between the optical port and the flange in each pair of the optical connectors to hold the pair of opto-electronic components and the pair of optical connectors to the chassis;
• a first portion of a shielded housing around the chassis to protect the pair of opto-electronic components and the electrical components;
• and
• a second portion of the shielded housing around the chassis coupled to the plate, the second portion of the shielded housing having one or more forward fingers and one or more backward fingers to couple to a panel.

A system for providing electromagnetic interference (EMI) shielding, the system comprising:

• a module chassis frame having a front end and a back end, the front end being open to allow for a printed circuit board including electrical components to be attached therein, the back end of the module chassis frame having a pair of separately enclosed hollow compartments, one hollow compartment to house a transmitter subassembly and another hollow compartment to house a receiver subassembly;
• the transmitter subassembly having a first shielding collar around a transmitter and the receiver subassembly having a second shielding collar around a receiver, an optical end of the transmitter subassembly inserted into one of the pair of separately enclosed hollow compartments and an electrical end of the transmitter subassembly coupled to the printed circuit board, an optical end of the receiver subassembly inserted into another one of the pair of separately enclosed hollow compartments and an electrical end of the receiver subassembly coupled to the printed circuit board;
• a U-plate having a top portion and a bottom portion having a pair of U-shaped openings, the top portion including a flap, the U-plate coupled into a slot of the module chassis frame to hold and shield the transmitter subassembly and the receiver subassembly;
• a first portion of an electromagnetic interference (EMI) shielding box wrapped around a first portion of the module chassis frame;
• and
• a second portion of the electromagnetic interference (EMI) shielding box wrapped around a second portion of the module chassis frame and coupled to the U-plate, the second portion of the electromagnetic interference shielding box having one or more forward fingers around its perimeter to provide an EMI seal around an opening of a host system and one or more backward fingers around its perimeter to contact to a chassis ground of the host system.

A fiber-optic module comprising:

• a means for holding optical, electrical, and opto-electronic components, the optical, electrical, and opto-electronic components to process optical and electrical signals, the means for holding having one or more optical connector receptacles;
• a first portion of a means for shielding and housing the means for holding, the first portion around the means for holding to cover over the electrical components;
• and
• a second portion of the means for shielding and housing the means for holding, the second portion around the means for holding to cover over the one or more optical connector receptacles, the second portion having a frontal opening to accept a fiber-optic cable connector, the second portion of the means for shielding and housing being conductive and including
• one or more first finger means near an edge of the frontal opening, the one or more first finger means to provide an EMI seal around an opening in a host system, and
• one or more second finger means near an edge of the frontal opening, the one or more second finger means to further provide the EMI seal around the opening in the host system and a connection to a chassis ground of the host system.

A fiber-optic module comprising:

• a module chassis frame having a printed circuit board affixed therein with electrical and opto-electronic components coupled thereto,
• the electrical and opto-electronic components to process electrical and optical signals between the printed circuit board and a pair of fiber optic cables respectively,
• the module chassis frame further having a pair of optical connector receptacles to receive a pair of fiber-optic cable connectors of the pair of fiber optic cables;
• and
• a housing/shielding unit wrapped around the module chassis frame to couple thereto and cover over the printed circuit board, the electrical and opto-electronic components, and the pair of optical connector receptacles,
• the housing/shielding unit having a frontal opening to accept the pair of fiber-optic cable connectors,
• the housing/shielding unit is conductive and has one or more forward fingers and one or more backward fingers integral therewith near an edge of the frontal opening,
• the one or more forward fingers and the one or more backward fingers to ground the housing/shielding unit to a chassis ground of a host system and to provide an electromagnetic interference (EMI) seal around an opening of a bezel of the host system.

A fiber-optic module comprising:

• a chassis having a pair of optical connector receptacles at one end and a pair of walls coupled to a base at an opposite end, the pair of walls having slots on inside surfaces, the pair of optical connector receptacles having a rectangular opening along the width of the chassis, the base having one or more pin openings;
• a printed circuit board coupled into the slots in the pair of walls of the chassis, the printed circuit board having one or more pins in the one or more pin openings in the base of the chassis, the printed circuit board having electrical components to process electrical signals of the one or more pins;
• a pair of opto-electronic components having pins coupled to traces of the printed circuit board at an edge, the traces coupled to at least one of the one or more pins and the electrical components of the printed circuit board, the pair of opto-electronic components to process electrical and optical signals;
• a pair of optical connectors each having an optical port with a lens, a flange, a snap lock clip, a ferrule barrel, and a recess between the optical port and the flange, the pair of optical ports of the pair of optical connectors coupled to the pair of opto-electronic components respectively at one end and each of the snap lock clip and the ferrule barrel inserted into the respective pair of optical connector receptacles of the chassis at an opposite end;
• a plate having a pair of u-shaped openings and a flap, the plate inserted into the rectangular opening of the chassis, the u-shaped openings of the plate engaging the recess between the optical port and the flange in each pair of the optical connectors to hold the pair of opto-electronic components and the pair of optical connectors to the chassis;
• a first portion of a shielded housing around the chassis coupled to the plate, the first portion of the shielded housing to protect the pair of opto-electronic components and the electrical components;
• and
• a second portion of the shielded housing around the chassis coupled to the first portion, the second portion of the shielded housing having one or more forward fingers and one or more backward fingers to couple to a panel.