Siemens RM400 C Series, Руководство по эксплуатации

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Glossary
U24802-J-Z146-2-7600 RM400 C Models
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display workstation
See terminal
electromagnetic compatibility (EMC)
Any electrical device emits electromagnetic interference and is itself affected
by electromagnetic interference. Electromagnetic compatibility refers to a
condition in which this interference remains within prescribed limits. These
limits are defined in EU directive 89/336/EEC “Electromagnetic Compatibility
(EMC)”.
Ethernet
A local area network specification developed by DEC
®
, Intel
®
and Xerox
®
and
published in 1979. As one of the first LAN s, it became the de facto standard
and was adopted as an official standard by the
IEEE
. Ethernet is currently the
most frequently used local area network. It carries data on yellow coaxial
cables (known as Yellow Cable or 10 base 5 cabling).
fan-out unit
A fan-out unit is an interface multiplier which allows a system to be attached to
a
LAN
.
FDDI
FDDI (Fiber Distributed Data Interface) is a standard for networks using fiber-
optic transmission media and operating at speeds of up to 100 Mbit/s. It
requires two fiber-optic double-circuit lines, which are used to transmit opposite
signals. FDDI is based on an
ANSI standard, and owing to its high data
throughput it can be used as a link between
Ethernet
segments.
firmware monitor
The firmware starts up automatically after you switch on the system. It checks
the hardware and logs the results on the console. After this base-level initial-
ization of the system, the firmware monitor starts up. The firmware monitor
provides system configuration commands which are available even if the
operating system has not been loaded.
hard disk drive
Data is stored on an external storage medium that can accommodate large
quantities of data and enable fast data access. This storage medium contains
one or more magnetic disks which rotate continuously. The data is written to or
read from the magnetic disk by means of read/write heads.