Introduction. (This introduction is not part of IEEE Std P, DraftStandard for a Common Mezza- The mezzanine card’s local bus can be PCI, SBus orother local buses as they are developed in the . Relationship Between VME, VME64 and VMEbus. .. Other Host PCB Mechanics. Compatibility – IEEE P PMC module which complies to PCI Local Bus Specification Revision Provides one multifunction interrupt. 5V signaling. Created for compact PCI Mezzanine Card site rack-based system designs, the read-writer’s form factor (PMC) conforms to the PMC IEEE P/Draft
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An add-on printed circuit board PCB which is mounted parallel to a host computer board.
Definitions, Abbreviations and Terminology 3. Table lists these heights that shall be used. This kit is essentially a grounding strap and a wire that connects the mezzanine card handler to the host’s chassis ground prior to installing a mezzanine card in to the host.
This draft standard defines the mechanics of a common mezzanine card family.
A P P E N D I X D – Bibliography
The requirements include the following categories and all associated sections and subcategories:. The second critical dimension is the horizontal center line dimension, where the center of the front panel opening shall be centered with the CMC connector group.
PCI bus local interface. P1386.11 two bus signaling voltages are 5V and 3. Transportation and Storage Humidity. The Netra CP boards are intended to be incorporated into systems meeting the following regulations and compliances:.
Standoffs are used to maintain the spacing between the CMC and the host, and to provide mechanical rigidity. Standoffs are required to be tied to the mezzanine card’s circuit ground. Occasionally questions may arise regarding the meaning of portions of standards as p13866.1 relate to specific applications. If the host module is incapable of supporting any of the modules, it can then report this as an unsupported bus system.
There is less mechanical flex strength in the flat front panels versus U shaped front panels. The height of these legs shall be the same as the two standoffs used near the CMC connectors. Such adoption does not assume any liability to any pfi owner, nor does it assume any obligation whatever to parties adopting the standards documents.
Host Side 1 Maximum Heat Dissipation A special caution should be noted as a mezzanine card with all connectors mounted could be plugged in to such a host making restricting component heights mandatory. CMC bezels shall be electrically isolated from the mezzanine card’s signal ground plane and shall meet the minimum requirements in section 4.
PCI Bus, PC CardBus, PCMCIA, Reader Writer, Mezzanine PMC
The components on the solder side cpi meet the limits of the CPCI specification for maximum height. Every IEEE standard drafft subjected to review at least once every five years for revision or reaffirmation.
See Figures and These connectors reside on the rear of the mezzanine card. Pn is surrounded by three ground pins and is recommended for critical signals such as the clock signal. The angular mis-alignment of any connector shall not exceed 1. In some applications, it may be necessary to use taller or shorter components on a CMC.
See Figure and Table for point of reference. All printed wiring boards PWBs are manufactured by UL recognized manufacturers, and have a flammability rating of V0 or better. This logic also needs knowledge about the capabilities of the CMC card.
The first critical dimension is the depth distance between rear connectors 0. In such cases, it is obvious that the relationships between involved dimensions shall be maintained.
Figure illustrates how a CMC could be mounted inside a desktop or portable computer host. Transportation and Storage Temperature.
Once the host has determined which modes the CMC cards can support, it sets the mode of operation to that which all the cards are capable ppci supporting.