User`s guide
139
Glossary
hardware are working correctly.
If the necessary hardware is detected and found to be operating properly, the computer
begins to boot. If the hardware is not detected or is found not to be operating properly,
the BIOS issues an error message which may be text on the display screen and/or a
series of coded beeps, depending on the nature of the problem.
Protected Extensible Authentication Protocol (PEAP)
A protocol proposed for securely transporting authentication data, including passwords,
over 802.11 wireless networks. PEAP makes it possible to authenticate wireless LAN
clients without requiring them to have certificates, simplifying the architecture of
secure wireless LANs.
RCI
See Remote Command Interface.
RealPort
RealPort is patented Digi software for COM port redirection. RealPort makes it possible
to establish a connection between the host and networked serial devices by creating a
local COM or TTY port on the host.
The COM/TTY port appears and behaves as
a local port to the PC or server. This process of COM port redirection allows
existing software applications like DNP3 and Modbus to work without modification.
Unlike other COM port redirectors, RealPort offers full hardware and software flow
control, as well as tunable latency and throughput. These features ensure optimum
performance, since data transfer is adjusted according to specific application
requirements.
Remote Command Interface (RCI)
A programmatic interface for configuring and controlling Connect family devices. RCI
is an XML-based request/response protocol that allows a caller to query and modify
device configurations, access statistics, reboot the device, and reset the device to factory
defaults.
Unlike other configuration interfaces that are designed for a user, such as the command-
line or browser interfaces, RCI is designed to be used by a program. A typical use of
RCI is in a Java applet that can be stored on the Connect device to replace the browse
interface with a custom browser interface. Another example is a custom application
running on a PC that monitors and controls an installation of many Connect devices.