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Glossary 105
Glossary
gateway
Hardware that permits a network connection between the LAN that your
computer understands, and the instrument specific interface that your
device understands.
instrument
A device that accepts commands and performs a test or measurement
function.
interface
A connection and communication media between devices and
controllers, including mechanical, electrical, and protocol connections.
LAN
Local Area Network. The E2050 LAN/GPIB Gateway can be used on
either Ethertwist or ThinLAN networks. The Gateway can also be used
on ThickLAN or fiber optic networks by purchasing the appropriate
converter and MAU.
lock
A state that prohibits other users from accessing a resource, such as a
device or interface.
logical unit
A logical unit is a number associated with an interface. In Agilent SICL,
a logical unit uniquely identifies an interface. Each interface on the
controller must have a unique logical unit.
server
Part of the client/server model used in distributed computing. The server
is a computer system designated to act as a main servicer of requests
from other client computer systems, such as I/O application requests,
networking requests, and so forth.
SICL
The Agilent Standard Instrument Control Library, which is software used
for I/O application programming.
SRQ
Service Request. An asynchronous request (an interrupt) from a remote
device indicating that the device requires servicing.
symbolic name
A name corresponding to a single interface. This name uniquely
identifies the interface on a controller or gateway. If there is more than