HP 316095-B21 FW 08.01.00 McDATA EFCM Basic User Manual (620-000240-000, Novem - Page 264
C, element and the attached control units
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Glossary bus bypassed port byte frames a port can transmit without receiving a receive ready signal from the receiving device. BB_Credit can be adjustable to provide different levels of compensation. The path that carries data between the computer (microprocessor) and peripheral devices. An IDE interface cable and a small computer system interface (SCSI) cable are both examples. If a port is bypassed, all serial channel signals route past the port. A device attached to the port cannot communicate with other devices in the loop. Abbreviated as B. A byte generally equals eight bits, although a byte can equal from four to ten bits. A byte can also be called an octet. C cascade central processing unit central processor complex channel channel-attached Linking two or more Fibre Channel switches to form a larger switch or fabric. The switched link through fiber cables attached between one or more expansion ports (E_Ports). See also expansion port. CPU. The heart of the computer, this is the component that actually executes instructions. CPC. A physical grouping of hardware that includes a main storage device, one or more central processors, timers, and channels. (1) A system element that controls one channel path, and whose mode of operation depends on the type of hardware attached. Each channel controls an I/O interface between the channel control element and the attached control units (D). (2) Point-to-point link that transports data from one point to the other. (3) A connection or socket on the motherboard to controller card. A motherboard may have only one or two channels (primary and secondary). If a motherboard has only one channel, it may be necessary to add a controller card to create a secondary channel. (1) Pertaining to direct attachment of devices by data I/O channels to a computer. (2) Pertaining to devices attached to a control unit by cables, not telecommunication lines (D). Synonymous with local. g-6 EFCM Basic User Manual