Upload
lyminh
View
221
Download
3
Embed Size (px)
Citation preview
The ETELM Company is located in the technological area of Courtaboeuf (PARIS), and specializes in
private radio communication infrastructure systems.
With dynamic and perennial teams, the strategy of ETELM is now oriented towards the manufacturing
and installation of TETRA radio networks.
This change is based on an accurate knowledge of the PMR market acquired over the last 28 years.
ETELM offers complete mastery of its expertise for design, development, manufacture, integration
and testing, sales and deployment of systems.
The possibilities of the standard combined with an extremely flexible architecture allow innumerable
configurations which make TETRA available to all budgets, without any limits to future evolutions.
ETELM has ISO 9001 V2000 certification and has significant technical resources, both for
development and the manufacture and testing of units (software development platforms, equipment
measurement benches, CEM authorisations, etc).
All of ETELM’s equipment is integrally designed, industrialized and sold with a constant concern for
creating modular and evolutive architecture without revising the existing architecture.
Their performance and reliability have been tested by various categories of users.
ETELM has signed the TETRA MoU charter, by which it undertakes to promote and respect the
standard without introducing any specific components into the standard equipment( components which
are specific to a network are put into independent PCs connected to the network).
A FORCE FOR DEVELOPMENT A FORCE FOR DEVELOPMENT A FORCE FOR DEVELOPMENT A FORCE FOR DEVELOPMENT
AT THE SERVICE OF RADIOAT THE SERVICE OF RADIOAT THE SERVICE OF RADIOAT THE SERVICE OF RADIO COMMUNICATION
1
DECENTRALIZED ARCHITECTURE
ETELM has selected a decentralized architecture, which is organized as follow:
A complete network consist of sub-networks connected to each other; each sub-
network is made up of base station (BS) connected in a star around a switch (SW),
the switch itself being connected to peripheral equipment (Dispatching, voice and
data, PABX, Administration console…) – thus, a sub-network is autonomous, and it
may cover a whole town or region with several radio sites. Each sub-network has it
own data bases and its own supervision.
STRUCTURAL CHOICES
The evolution from analogic technology to
digital technology (TETRA) in the years 2000 in
the sector of professional radio communication
has modified a well established industrial order.
By preparing itself since 1995 for this change
with the acquisition of the mastery of a
complex technology, ETELM became the
referenced supplier, particularly in the world of
transport, Utilities, Oil&Gas and public safety.
This sudden growth has been controlled, and is
continuing with international contracts all over
the world.
MEETING SUCMEETING SUCMEETING SUCMEETING SUCCCCCESSESSESSESS
ETELM ETELM ETELM ETELM TECHNOLOGY PHYLOSOPHYTECHNOLOGY PHYLOSOPHYTECHNOLOGY PHYLOSOPHYTECHNOLOGY PHYLOSOPHY
2
STRUCTURAL CHOICES
ETELM has working methods which are based upon the respect of initial choices, in particular:
The systematic use of European standard
The systematic use of standard interfaces
The systematic use of Commercial On The Shelf products (PC under Windows)
Free distribution of the interface protocol with external IP applications
INTEROPERABILITY
ETELM takes care to offer to its customers the characteristics if interoperability with terminals
suitable for making installations perennial with:
Technical, commercial and financial independence from terminals manufacturers
A guarantee that there are many procurement sources
A guarantee of interoperability with laboratory and fields tests
A guarantee to be able to receive several brands of terminals on the same network
The fixed links used in the networks play a major role, in particular for operating cost.
ETELM offers a set of technical solutions which can provide the greatest flexibility on this
matter.
Thus, each link between the switch and a radio site can be programmed with a G703, V11,
or IP interface without modifying the equipment.
In the G703 version, the equipment includes multiplexers of the ‘drop and insert’ type,
programmable from all the types of architectures required.
The links to central application equipment (audio dispatching, data dispatching,
message systems, recording…) are all of the IP type.
The voice on IP technology used allows all the communications to be processed
systematically in conference mode (a group of operating posts forming a dispatching
centre).
3
MIXED ARCHITECTURE OR FULL IPMIXED ARCHITECTURE OR FULL IPMIXED ARCHITECTURE OR FULL IPMIXED ARCHITECTURE OR FULL IP
NETWORKNETWORKNETWORKNETWORK
City TETRA Radio Network 1
City TETRA Radio Network 2
Small City TETRA network 5
Small City TETRA network 4
Small City TETRA network 3
WAN
The supply of equipment is a homogeneous and compatible family; each units is modular and each
extension is made either by the addition of new equipment or by the addition of boards which can
be slotted directly into the existing equipment.The number of sub assemblies is reduced to the
minimum.
(Re-use of the same modules in various of equipment). These dispositions alone guarantee simple
evolution to the most detailed requirements.
A HOMOGENEOUS A HOMOGENEOUS A HOMOGENEOUS A HOMOGENEOUS
RANGE OF EQUIPEMENTRANGE OF EQUIPEMENTRANGE OF EQUIPEMENTRANGE OF EQUIPEMENT
WAN IP
NMT PABX/PSTN GatewayAVL consoleDispatcher
4
INFRASTRUCTUINFRASTRUCTUINFRASTRUCTUINFRASTRUCTURERERERE EQUIPMENT EQUIPMENT EQUIPMENT EQUIPMENT
ACCESSORIESACCESSORIESACCESSORIESACCESSORIES
AUTOMATIC SINGLE SITE SINGLE CARRIER RELAY (TBSG)
A radio infrastructure unit that is fully compatible with the TETRA standard whose mode
of operation is identical to that of the automatic relays which are widespread in analogic
technology.
BASE STATION (TBS20)
The TBS11 single carrier base station works equally well with dedicated links and IP. It
is equipped with a local and remote extension junction to other aquipment.
The TBS11 is fully compatible with TRA2M (automatic relay) and TBS10 (previous version
of the base station).
SWITCH (TSW10)
The TSW10 unit is the nodal centre of the TETRA network. It is in charge of the
management and interfacing of the base stations, the dispatching network and the
telephone equipment. Each switch takes charge of up to 32 base stations, whatever the
distribution of these stations over the various radio sites. It is the nerve centre of the
network, and it can be fully backed up by automatic switching in use, which is particularly
useful for software and hardware breakdowns.
ADMINISTRATION CONSOLE (TSC10)
The console of administration is the point of access to the network for:
Calibrating the network
Managing the subscribers
Real time maintenance
Historic
FIBER OPTIC REPEATER AND HERTZIEN REPEATER (TOR/TAR)
The basic or secured fibre optic repeater enables to extension of radio cover to
confined surroundings such as tunnels, industrial building and underground premises.
The hertzian repeater enables one off zones of shadow to be dealt with. Both units
may be combined for special applications.
5
BASIC SERVICES SUPPLEMENTARY SERVICES
DATA SERVICES SUPERVISION FUNCTIONS
(Network Management Terminal)
SUPPLIED FSUPPLIED FSUPPLIED FSUPPLIED FEATURESEATURESEATURESEATURES
Registration
Selective Calls
Direct or off-hook
Group Calls (normal, acknowledge, broadcast…)
Half Duplex Management with priority
End of Communications
Trunk or Quasi trunk Mode
Open Channel Calls
Roaming, Hand Over
List search call
Include call
Call forwarding unconditional
Call forwarding on busy, on no reply or on nor reachable
Call authorized by dispatcher
Barring of incoming calls
Barring of outgoing calls
Call report
Calling party identification
Call completion on no reply or on busy subscriber
Short number addressing
Priority call
Preemptive call
Discreet listening
Ambiance listening
Talking party identification
Area selection
Late entry
Dynamic group identification
Call retention
Circuit mode
Status
SDS Type 1.2.3.4
IP packet mode (TCP/IP+UDP)
Real time synoptic display on the network
Monitoring of an element of the network by ‘zoom’
Alarms management
Parameters access of all elements of the network
Automatic loading of the parameters of different elements of
the network
(specially
basic
Create / delete / recopy of mobiles
Declaration of the rights affected to each mobiles
Create / delete / recopy of groups of mobiles
Rights and access for each group declaration
Operating parameters mode declaration
Authorized visitors declarations
Numbering plan description
MOBILES MANAGEMENT FUNCTIONS (Network Management Terminal)
VARIOUS
Group call from a telephone
Real time monitoring of the network
Automatic remote loading of the equipment of the site
Security of the links integrated in the equipment
Technical and administrative configurations declared in standard
files PC form 6
APPLICATIONSAPPLICATIONSAPPLICATIONSAPPLICATIONS
Etelm makes every effort transmission systems which are very open so that they can receive
varied applications; with this in mind, the transmission system has to be transparent between
a standard on board interface (PEI junction) and a centralized interface that is a current
and open as possible. Thus, the use of the network for an application does not require any
licences. The specifications of the centralized interface are publicly distributed, and they
enable computer developments without any particular knowledge of the TETRA technology.
Open protocol
A hub independent of applications
SOME APPLICATIONS ARE AVAILABLE IN STANDARD:
Basic audio and SDS dispatching
Dispatching oriented towards the management of urban transport
IP recorder of communications
Server for service allocation
Server for GPS positions
Unit for management of remote PCs
PO
Enr.
SIV
SAE
INT
Standard Interface
Standard Air
Interface
IP SOFTWARE APPLICATION
Audio Applications
DATA Server
External System
Interface
TERMINALS And
OPERATING SYSTEMS
Non specific Software application compliant to
standard
7
PERENNITY AT THE SERVICE OF THE PERENNITY AT THE SERVICE OF THE PERENNITY AT THE SERVICE OF THE PERENNITY AT THE SERVICE OF THE
CUSTOMERSCUSTOMERSCUSTOMERSCUSTOMERS
ETELM offers one of the most experienced Research & Development team in the field
of professional mobile radio communication ; its experience, its structure and its
strong financial independence enable it to offer the best guarantees of perennity, in
particular:
On the technical side, ETELM prefers to use existing standards, which
guarantee the compatibility of the equipments.
On the industrial side, ETELM has ISO 9001 V2000 certification.
On the sales side, ETELM is one of the rare structures which provide
hardware.
On the financial side, ETELM is based on solid foundations, and its
experiencing sustained growth.
8