Extron electronic IPL T S Series - Manual (Page 77)

B-3 IPL T S Series • Glossary
GlobalViewer (GV) is a set of Web pages (HTML, XML, JS) and graphics that are
loaded into the memory of an IPL T S interface. These pages provide an interface
for control of devices attached to the IPL T S interface. They communicate with
the event scripts running on the device, and the event scripts issue the commands
and queries. This communication between the Web pages and the event scripts
occurs through predetermined memory locations in the IPL T S interface. GV is
initially created by Global Configurator; however, it is possible to edit GV’s HTML,
XML, and JavaScript files outside of GC. This edited GV is called “hard-coded” or
manually generated GlobalViewer.
HTTP
is an acronym for the HyperText Transfer Protocol (HTTP), a Web protocol
based on TCP/IP, that is used to fetch HyperText objects from remote Web pages.
Internet Protocol (IP)
is the protocol or standard used to send information from
one computer to another on the Internet.
IP address
is a unique, 32-bit binary number (up to a 12 digit decimal number, xxx.
xxx.xxx.xxx) that identifies each sender and each receiver of information connected
to a LAN, WAN, or the Internet. IP addresses can be static (see Static IP) or
dynamic (see DHCP).
IP Netmask
is a 32-bit binary number (12 digit decimal number, xxx.xxx.xxx.
xxx) used on subnets (smaller, local networks) to help the router determine which
network traffic gets routed internally to local computers and which network traffic
goes out on the Internet.
Media Access Control (MAC) Address
is a unique hardware number given to
devices that connect to the Internet. When your computer or networking device
(router, hub, interface, etc.) is connected to the Internet, a table (see ARP) associates
the device’s IP address to its corresponding physical (MAC) address on the LAN.
Pass-through
allows control systems to work with the IPL T S interface, and
provides a link between two ports.
Ping
is a utility that tests network connections. It is used to determine if the host
has an operating connection and is able to exchange information with another host.
Port number
is a preassigned address within a server that provides a direct route
from the application to the Transport layer or from the Transport layer to the
application of a TCP/IP system.
Static IP
refers to an IP address that has been specifically (instead of dynamically—
see DHCP) assigned to a device or system in a network configuration. This type of
address requires manual configuration of the actual network device or system and
can only be changed manually or by enabling DHCP.
Transmission Control Protocol/Internet Protocol (TCP/IP)
is the communication
protocol (language) of the Internet. Computers and devices with direct access to
the Internet are provided with a copy of the TCP/IP program to allow them to send
and receive information in an understandable form.
Telnet
is a utility available on most PCs that allows the computer system to
communicate with one of its remote users/clients. A user who wishes to access a
remote system initiates a Telnet session, using the address of the remote client. The
user may be prompted to provide a user name and password if the client is set up
to require them.
URL encoding
allows you to send information and commands to the unit to change
its configuration or provide you with feedback.
Web Server
resides on the IPL T S interface and provides storage of the default Web
pages, GlobalViewer, and your custom Web pages.