摘要:
A connector system for a removable transceiver module that interfaces with an electronic device, such as a computer, switch, subsystem, peripheral device, disk drive, tape drive and other input/output devices. The electronic device includes an enclosure having a bezel that has an opening for receiving the module. A circuit board is mounted within the enclosure. A guide member is mounted on the circuit board and is elongated between first and second ends along a first axis. A connector block is located at the first end of the guide member, while a door is pivotally mounted at the second end of the guide member. The module is slidably engageable with the guide member in a direction along the first axis. The module also includes electrical contacts electrically connectable with corresponding electrical contacts in the connector block. The door is pivotable between an open position exposing the opening in the bezel and a closed position where a portion of the door outside the enclosure covers the opening. The door effectively minimizes the likelihood of dust entering the electronic device. Preferably, to provide effective EMI shielding, the door and the bezel each comprise an electrically conductive material and are configured to make electrical contact with each other when said door is closed. The door may be positively latched in the closed position and spring biased toward the open position. The door preferably includes features for guiding and latching the module.
摘要:
An optical transceiver includes structures that define an electrical connector port for allowing connection of an electrical connector to an optical subassembly of the transceiver, and structures that define a vent surrounding at least portions of the connector port, whereby the vent allows bidirectional passage of air therethrough. Included in the transceiver are structures that define electromagnetic interference shielding and selectively transfer heat of heat generating electronic components by conduction to a transceiver housing. Methods of cooling the transceiver by ventilation and internal heat conduction are present.
摘要:
A method of cooling an optical transceiver that is mountable in a wall opening and a method of cooling a data transfer system in combination with an optical transceiver is described. An optical transceiver is provided that has a form factor and one end portion that is insertable within a wall opening in a wall. Ambient air is ventilated over a major surface portion of the optical transceiver by mounting said end portion to the wall opening so that at least one vent is formed within confines of the wall opening. The vent allows air to pass between the exterior and interior of the enclosure, and over the major surface portion of the optical transceiver.
摘要:
An optical transceiver includes structures that define an electrical connector port for allowing connection of an electrical connector to an optical subassembly of the transceiver, and structures that define a vent surrounding at least portions of the connector port, whereby the vent allows bidirectional passage of air therethrough. Included in the transceiver are structures that define electromagnetic interference shielding and selectively transfer heat of heat generating electronic components by conduction to a transceiver housing. Methods of cooling the transceiver by ventilation and internal heat conduction are present.
摘要:
An optical transceiver includes structures that define an electrical connector port for allowing connection of an electrical connector to an optical subassembly of the transceiver, and structures that define a vent surrounding at least portions of the connector port, whereby the vent allows bidirectional passage of air therethrough. Included in the transceiver are structures that define electromagnetic interference shielding and selectively transfer heat of heat generating electronic components by conduction to a transceiver housing. Methods of cooling the transceiver by ventilation and internal heat conduction are present.
摘要:
An electromagnetic radiation shield useful to attenuate or prevent the escape of electromagnetic radiation from the front of transceiver opto-electronic subassemblies resident in an opening or port in the housing of an electronic system is formed with both an aperture for each barrel of the opto-electronic subassemblies and a plurality of extensions projecting outwardly from the shield. The distal ends of the extensions are bent or shaped to form smoothly curved contact surfaces that project outside the transceiver module to make contact with a grounded member of the housing or other electrically grounded portion of the electronic system of which the transceiver module is a part. The electromagnetic radiation shield is assembled with the transceiver subassemblies and disposed within a transceiver module to be inserted into a communications port of a computer or server. The transceiver module contains elements that may generate and radiate electromagnetic energy. The electromagnetic energy must be prevented from escaping or attenuated to prevent electromagnetic interference in the other nearby electronic components or systems susceptible to electromagnetic interference.
摘要:
A push-to-release latching mechanism for retaining a transceiver module in a communication port of a computer or server is provided with a beam spring structure for positional restoration of the latch member, and the latch is supported and moveable relative to the host transceiver module. The latch member may be formed to include camming surfaces that facilitate the insertion of the transceiver module into a communication port and mate with a guide rail and connector resident in a communication port. The latch member may be adapted to latch with a rigid latch bar or a cantilevered spring. Additionally, the latch may be formed with a camming surface which insures that the latch is displaced to a latching position whenever network cables are connected to the transceiver module by camming the latch into the secure, latched position and subsequently preventing the latch from moving to an insecure or unlatched position. The latch member is pivotally supported on the transceiver module in a shaft/journal arrangement and thus is removed from the communication port whenever the transceiver module is removed, thereby preventing the latch from projecting from the communication port and being subject to damage. The latch member may be formed with a living hinge to provide a pivot axis and one end of the living hinge may be attached to a electronic module chassis or to a support structure which may be mated with a electronic module chassis for easy replaceability.
摘要:
The present invention relates to an optical transceiver unlatching device for disengaging the optical transceiver from a mounting cage found in a host computer device. The unlatching device converts rotational motion from a bail handle into reciprocating motion for a sliding latch member, which disengages spring fingers extending from the mounting cage from abutment surfaces formed in the sides of the optical transceiver. A return spring, extending between the sliding latch member and the optical transceiver housing, is provided to bias the unlatching device into the latched position.
摘要:
The invention relates to modular heat-dissipating housing covers for opto-electronic modules, e.g. transceivers. The housing covers according to the present invention are constructed out of various different parts, which provide different levels of heat dissipation depending on the desired implementation, while maintaining a seal against EMI leakage. Extra heat sinking portions are provided to dissipate heat generated from specific heat generating sources. The extra heat sinking portions are configured into a shape and/or out of a material that provides more thermal dissipation than the standard cover provided. Independent control over the different heat sinking portions enables a better fit and appropriate dissipation.
摘要:
The present invention relates to an electronic module, such as an opto-electronic transceiver or a copper transceiver, for plugging into a host receptacle. In an effort to eliminate the use of costly and inefficient sheet metal spring fingers for reducing EMI emissions, the present invention proposes to use solid conductive projections extending outwardly from the sides and top of the module housing. However, in highly populated host receptacles, adjacent cages often share a common sheet metal wall, which will deform when a module with a solid projection extending therefrom is inserted, thereby making insertion of an adjacent module very difficult. The present invention eliminates this problem by vertically offsetting projections on the opposite sides of the housing so no two projections are in the same horizontal plane.