HP StorageWorks 2.32 SAN Switch - Manual (Page 341)

Web Tools Version 3.0.x/4.0.x User Guide Glossary–31
Glossary
Terminal Serial Port
May also be referred to as the console port. The lower serial port on the CP Card of the
StorageWorks Core switch. This port sends switch information messages and can receive
commands. Can be used to connect the CP Card to a computer terminal. Has an RS-232
connector wired as a DTE
device, and can be connected by serial cable to a DCE device. The
connector pins two and three are swapped so that a straight-through cable can be used to
connect to a terminal. The device name is ttyS0.
See also DCE port, modem serial port.
Throughput
The rate of data flow achieved within a cable, link, or system. Usually measured in bps (bits
per second).
See also bandwidth.
Topology
As applies to Fibre Channel, the configuration of the Fibre Channel network and the resulting
communication paths allowed. There are three possible topologies:
• Point to point—A direct link between two communication ports.
• Switched fabric—Multiple N_Ports linked to a switch by F_Ports.
• Arbitrated loop—Multiple NL_Ports connected in a loop.
Transceiver
Device that converts one form of signaling to another for transmission and reception; in fiber
optics, it refers to optical and electrical.
Transfer State
The state in which a port can establish circuits with multiple ports without reentering the
arbitration cycle for each circuit. This state can only be accessed by an L_Port in the Open
state.
Translative Mode
A mode in which private devices can communicate with public devices across the fabric.
Transmission Character
A 10-bit character encoded according to the rules of the 8B/10B algorithm.
Transmission Word
A group of four transmission characters.
See also data word.