Clear-Com HX System Frames - Manual (Page 281)

Configuration.
Determines the operating parameters of the Eclipse HX matrix system, including port
functions, talk-and-listen audio routes, controls and other functions. Configurations are
created and managed in EHX, for download to the matrices.
Destination
A device such as an intercom panel, beltpack, or interface to which audio signals are
sent. The device from which audio signals are sent is called a source.
Duplex
All real-time communication between individuals talking face to face is full duplex,
meaning that they can both talk and listen simultaneously. The Eclipse HX matrices
provide full-duplex audio.
EHX
Eclipse HX Configuration Software. Software program that guides the operation of the
central matrix circuit cards and connected panels.
Ethernet
International standard which describes how information is transmitted across a network.
Provides for the efficient organization of network components.
Fiber-optic Cable
A fiber-optic cable consists of a glass core covered with a reflective material called
cladding and several layers of buffer coating to protect the cable from the environment.
A laser sends light pulses through the glass core to the other end of the cable.
FreeSpeak
Digital wireless communications product. Sold under the FreeSpeak name in Europe
and Asia and CellCom name in USA.
Full Duplex
Refers to transmission of signals in two directions simultaneously.
IFB
Interruptible Foldback. The term foldback refers to sending program audio, or some
other audio mix, back to announcers while they are on the air. Doing so allows
announcers to monitor themselves, other announcers, videotapes of commercials, or
some mix of sources, while they on the air. This is typically found in television news and
live broadcast events.
Announcers typically wear a small ear piece so they can hear the selected foldback
audio mix. When a director wants to give directions to an announcer on air, or to
announce changes in the program, the director must interrupt the foldback. To do this,
the director uses a channel specifically set up to interrupt the foldback audio.
Interface Module
A piece of electronic hardware designed to convert the four-wire signals of a central
matrix port to some other form of communication, such as 2-wire party line, telephone,
etc. The interface module is connected to a central matrix port. The external non-four-
wire device is then connected to the interface module.
ISO
The ISO function, short for panel ISOlation, allows a panel operator to call a destination
and interrupt all of that destination’s other audio paths and establish a private
conversation. When the call is completed the destination’s audio pathways are restored
to their original state before the interruption.
281 Eclipse EHX Software User Guide