摘要:
The functionality of a blade is expanded by the installation of an expansion unit including expansion components. The blade and expansion unit are provided with connectors allowing the blade components to access and utilize the expansion components when the connectors are mated. The blade and expansion unit include elements ensuring that the connectors align properly as the expansion unit is installed onto the blade, making the installation simple and quick. The blade and expansion unit also include elements securing the connection between the two, once made.
摘要:
A computer has at least one adapter card slot for receiving an optional adapter card. A cover plate is rotatable hinged and has open and closed positions. In the closed position, the cover plate covers the adapter card slot and inhibits the insertion or removal of an adapter card. When the cover plate is raised into the open position, a tab on the back of the cover plate is rotated out of the slot of an optical switch, and the optical switch then signals circuitry to remove power and bus signals from the adapter card slot; thereby permitting the adapter card to be removed from or inserted into the slot without removing power to the entire computer. When the cover plate is returned to the closed position, the tab is reinserted into the slot of the optical switch, which in turn signals the circuitry to return power and bus signals to the adapter card slot. A locking tab firmly clamps the adapter card bracket to the housing bracket; thereby providing a good ground connection from the adapter card to the computer housing.
摘要:
An electrical equipment rack includes an electrical equipment unit that slides in and out of the rack on two drawer slides. A hinge attaches a first cable management arm to the rack or to a first drawer slide, which is attached to the rack. Another hinge attaches a second cable management arm to the equipment unit or to a second drawer slide, which is attached to the equipment unit. A flexible linkage is connected between and joins each of the free ends of the two cable management arms. Cables for interconnecting two or more equipment units are attached to the cable management arms and flexible linkage. The equipment unit can be extended out the front or back of the rack for servicing, and each of the cable management arms can be rotated away from the equipment unit to permit easy access to the unit. The flexible linkage limits the bend radii of the cables without regard to the position of the cable management arms or the position of the equipment unit relative to the rack. In another embodiment, a single flexible cable management arm is used instead of the two cable management arms and flexible linkage.
摘要:
An apparatus, system, and method are disclosed for identifying and differentiating among multiple groups of devices, comprising at least two LEDs, a controller, and a blending medium. The at least two LEDs emit a wavelength of light that is different from a wavelength of each other LED. The controller drives the at least two LEDs to each emit light at specified intensities in response to a color identifying value. The blending medium combines the light emitted by the at least two LEDs into an identifying color that identifies a group of devices.
摘要:
Method and apparatus for blind docking an electronic device or module with an electrical connector, for example within a rack for a computer system. A forwardly-directed power connector is secured to a distal end of at least one rail or shelf bracket for blind docking with a rearwardly-directed power connector on the electronic module. The shelf bracket securing the forwardly-directed electrical connector is included in a pair of longitudinally-extending shelf brackets secured to opposing vertical side walls of a rack at a common elevation to form a module bay. The electronic module may slide along the shelf bracket until a rearwardly-directed power connector of the electronic module blind docks with the forwardly-directed power connector. A boss or alignment stud may be included on the bracket to improve alignment of the connectors. The forwardly-direct electrical connector may also be secured to the bracket with a floating connection to enable minor adjustments in alignment during blind docking.
摘要:
A method of operating variable pitch fans in series to cool an operating computer system. The method comprises running a first variable pitch fan with blades positioned at an operational pitch to induce airflow through the computer system and through a second variable pitch fan disposed in series with the first fan, and, simultaneously, not running the second variable pitch fan with blades positioned for minimal impedance to the airflow. In response to detecting a failure condition of the first fan, the method includes running the second fan with blades positioned at an operational pitch to induce airflow through the computer system and through the first fan, and, simultaneously, not running the first fan with blades positioned for minimal impedance to the airflow. Preferably, the method includes locking the rotor of a fan that is not running, and locking the blades of the non-running fan in a minimal impedance position.
摘要:
A method of operating variable pitch fans in series to cool an operating computer system. The method comprises running a first variable pitch fan with blades positioned at an operational pitch to induce airflow through the computer system and through a second variable pitch fan disposed in series with the first fan, and, simultaneously, not running the second variable pitch fan with blades positioned for minimal impedance to the airflow. In response to detecting a failure condition of the first fan, the method includes running the second fan with blades positioned at an operational pitch to induce airflow through the computer system and through the first fan, and, simultaneously, not running the first fan with blades positioned for minimal impedance to the airflow. Preferably, the method includes locking the rotor of a fan that is not running, and locking the blades of the non-running fan in a minimal impedance position.
摘要:
A system comprising a chassis that includes a plurality of modules and a fan assembly disposed in a distal end of the chassis for drawing air in parallel pathways through the plurality of modules. At least one of the modules is a compute module having a thermal sensor disposed to sense the temperature of air flowing across a processor mounted on a motherboard. The system further comprises a fan controller receiving output from the thermal sensor, wherein the fan controller operates the fan assembly to cool the plurality of modules and maintain the thermal sensor output within an operating temperature range. The fan controller controls the fan speed according to predetermined thermal profile settings associated with one of the compute modules received in the chassis. For example, the predetermined thermal profile settings may include a minimum fan speed, a maximum fan speed, and control loop feedback settings.