Crestron electronic Ethernet - Manual (Page 41)

Crestron eServer™ Ethernet OEM Module
general structure of various kinds of documents linked together on the World Wide
Web.
IP Address
An IP (Internet Protocol) address is a numeric code that uniquely identifies a
particular device (i.e., computer) on the Internet. Just as a street address identifies the
location of a home or office, every computer or network on the Internet has a unique
address, too. Internet addresses are assigned by an organization called InterNIC.
Register an address with InterNIC as both a name (whitehouse.gov), which is
referred to as the domain name, and a number (198.137.240.100), which is generally
referred to as the IP address. The format of the IP address is four numbers separated
by dots (e.g., 198.123.456.7).
IP ID
The IP ID is a two-digit hexadecimal number that is used to differentiate a device
from a group of Ethernet devices in a control system with the same IP address. Just
as the Net ID is used to distinguish between identical devices within a SIMPL
Windows program, the IP address for a specific IP ID in the control system's IP table
must be set to the IP address of the given device. Furthermore, the IP ID in the given
device's static master table must be set to the IP address of the control system.
IP Mask
Internet protocol (IP) mask is a number that is used in conjunction with the IP
address to determine whether or not a particular IP address is on the local network. If
it is on the local network, communicate directly. Otherwise, use a router attached to
the IP network. The IP mask for any device should be assigned by whoever manages
the local network. The format of the IP mask is four numbers separated by dots (e.g.,
255.255.255.0).
IP Table
A table containing IP addresses and IP IDs for devices that communicate with the
programmed CEN-OEM. This table is maintained inside each CNX control system,
though it may be generated by a SIMPL Windows program, or edited manually using
the Viewport utility.
Link
A link generally refers to any highlighted words or phrases in a hypertext document
that allow a jump to another section of the same document or to another document on
the World Wide Web.
Master List
Master list is a list of Crestron Internet Protocol (CIP) enabled devices that will be
informed of any changes in the state of the controlled device. The device accepts
commands from the addresses of these masters.
Operations Guide - DOC. 8148 Glossary of Terms • 37