Removable transceiver module and receptacle
First Claim
Patent Images
1. A removable optoelectronic transceiver module and receptacle assembly comprising:
- a transceiver module housing having a first end, a second end and at least one electrically conductive outside surface;
a circuit board mounted within the housing and an optical subassembly electrically connected to the circuit board adjacent said first end;
a fiber optic receptacle at the first end;
electrical contacts at the second end connected to said circuit board, the electrical contacts for quickly installing and replacing said module to or from a circuit card assembly;
a receptacle housing including a mounting panel with an opening, a rail system for receiving the module and opposed to the opening a second end, the second end including an electrical connector having signal contacts mating with the electrical contacts of the module, wherein upon mating of the module within the receptacle housing the electrical contacts of said transceiver module mate with the electrical connector of the receptacle a majority of the module is received within the receptacle and a gap is formed between the opening and the module; and
a ground tab adapted to occupy the gap and adapted to provide an electrical connection from the at least one conductive outside surface of the transceiver module in order to reduce electromagnetic interference and to provide for an FCC compliant module.
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Abstract
A robust optoelectronic transceiver module which is quick, easy, and inexpensive to manufacture. The transceiver module has a main housing which consists of a circuit board having an optical subassembly mounted thereon. The module housing may be pluggable via a retention member received within the receptacle. The module and receptacle assembly may include grounding means such as a ground clip mounted within a gap provided between the module and a connector port of the receptacle to limit electromagnetic emissions.
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Citations
56 Claims
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1. A removable optoelectronic transceiver module and receptacle assembly comprising:
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a transceiver module housing having a first end, a second end and at least one electrically conductive outside surface;
a circuit board mounted within the housing and an optical subassembly electrically connected to the circuit board adjacent said first end;
a fiber optic receptacle at the first end;
electrical contacts at the second end connected to said circuit board, the electrical contacts for quickly installing and replacing said module to or from a circuit card assembly;
a receptacle housing including a mounting panel with an opening, a rail system for receiving the module and opposed to the opening a second end, the second end including an electrical connector having signal contacts mating with the electrical contacts of the module, wherein upon mating of the module within the receptacle housing the electrical contacts of said transceiver module mate with the electrical connector of the receptacle a majority of the module is received within the receptacle and a gap is formed between the opening and the module; and
a ground tab adapted to occupy the gap and adapted to provide an electrical connection from the at least one conductive outside surface of the transceiver module in order to reduce electromagnetic interference and to provide for an FCC compliant module. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An optoelectronic transceiver receptacle comprising:
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a transceiver receptacle located on a circuit card of a communication system chassis and the communication system having components that generate and use timing signals or pulses at a rate in excess of 9,000 cycles per second, and the receptacle including;
a first end having a mounting panel formed of a conductive material and providing EMI shielding from radiating components on the circuit card;
a first grounding means including a ground tab extending into the receptacle and formed as a cantilever beam extending from a housing wall of the receptacle; and
an electrical receptacle connector mounted at the second end of the receptacle, the electrical receptacle connector for coupling with electrical contacts of a removable optoelectronic transceiver module when a majority of the module is received within the receptacle and wherein ground for the transceiver module circuit board is established upon insertion within the receptacle via a second grounding means including a ground contact finger offset from a signal contact finger so that the ground contact finger mates with a corresponding ground contact finger of the electrical receptacle connector prior to the mating of the signal contact finger with a corresponding signal contact finger of the electrical receptacle connector wherein the first grounding means and the second grounding means provide for the harmless dissipation of static charge and provides for the proper sequencing of power and signal connections to facilitate hot plugging of the optoelectronic transceiver module. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19)
the electrical receptacle connector opposed to the mounting panel at a second end;
the receptacle being defined by the area between the first end and the second end; and
a guide rail mounted in the receptacle between the first end and the second end wherein the guide rail guides the transceiver module through the receptacle to align the transceiver module with the electrical receptacle connector.
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17. The transceiver receptacle of claim 16 wherein the electrical connector is a circuit card connector mounted to the circuit card that is mounted transverse to the mounting panel.
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18. The transceiver receptacle of claim 14 wherein a pair of guide rails are mounted on the circuit card.
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19. The transceiver receptacle of claim 10 wherein the guide rail receives a frame member of the transceiver module housing.
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20. A removable optoelectronic transceiver module comprising:
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a transceiver module housing having a first end, a second end and an electrically conductive outside surface;
a circuit board mounted within the housing and an optical subassembly electrically connected to the circuit board adjacent said first end;
a fiber optic connector at the first end;
electrical contacts at the second end connected to said circuit board and the electrical contacts for quickly installing and replacing said module to or from a transceiver receptacle;
a first retention member attached at the first end of the module and the retention member engaging a corresponding second retention member on the transceiver receptacle; and
a ground tab adapted to occupy a gap formed between the module and an opening of the transceiver receptacle and adapted to provide electrical connection from the conductive outside surface of the transceiver module to the opening in order to reduce electromagnetic interference and to provide for an FCC compliant module. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36)
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37. An optoelectronic transceiver module and receptacle assembly for receiving a removable optoelectronic transceiver module, the assembly comprising:
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the optoelectronic transceiver module including an electrically conductive outside surface;
a transceiver receptacle located on a circuit card of a communication system chassis for receiving a majority of the module therein and the receptacle including a first end having a mounting panel formed of a conductive material and providing EMI shielding from radiating components on the circuit card; and
an electrical connector mounted at the second end of the receptacle and the electrical connector having a grounding means, the electrical connector for receiving the removable optoelectronic transceiver module.
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38. A transceiver receptacle comprising:
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a transceiver receptacle located on a circuit card of a communication system chassis and the receptacle including a first end having an opening formed of a conductive material and providing EMI shielding from radiating components on the circuit card; and
a grounding tab configured to occupy a gap between an electrically conductive surface of a removable transceiver module and the opening and the receptacle includes at a second end an electrical receptacle connector for receiving a connector of the removable transceiver module wherein upon mating of the receptacle connector with the removable transceiver module connector a majority of the removable transceiver module is received within the receptacle. - View Dependent Claims (39, 40, 41, 42)
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43. A small format pluggable fiber optic transceiver and receptacle assembly comprising:
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a transceiver module including a housing having at least one electrically conductive surface, a first end having a fiber optic connector, a second end having an electrical connector, the electrical connector formed of a circuit board protruding from the second end of the housing and having metallic fingers formed of a conductive material affixed to the circuit board and an release-mechanism included with the transceiver module, the release-mechanism and the electrical connector facilitating the pluggability of the transceiver module;
a receptacle including an EMI guide rail having a rail system for receiving the module;
a ground tab for electrically connecting with the at least one electrically conductive surface of the transceiver module in order to reduce EMI and provide for an FCC compliant module; and
a host connector mounted within the receptacle for receiving the electrical connector of the transceiver module wherein the transceiver module is hot pluggable to the receptacle. - View Dependent Claims (44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56)
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Specification