IP@node Switch TSW10

The IP@node-TSW10 is a TETRA switching unit for

networks of different topologies, hierarchies and sizes.

The IP@node-TSW10 makes it possible to connect to

base stations, dispatchers, applications and external

networks (IP, PSTN, etc.) at different stages of expansion.

The basic variant of the IP@node-TSW10 supports up to 30

base stations. In IP mode, it is possible to connect up to 256

base stations to a single IP@node. By networking several

IP@node-TSW10, it is possible to set up nationwide networks.

The IP@node-TSW10 is small, light, has low power

consumption and is therefore conveniently relocatable.

Each switch on a network is linked to a specific database. To ensure maximum security, the switch can be

made fully redundant through the use of a completely identical unit; The IP@node-TSW10 is available as a

220 Vac network version and a 48 Vdc version.

Exchanges with the dispatching center are carried out over the local network using:

- Signaling: o 1 UDP channel for the circulation

of network communications and the transmission of SDS/Status data

o 1 TCP/IP channel - Voice

o The link is made via a UDP channel

EXCHANGES WITH DISPATCHING CONSOLE

Dispatcher and Application Server Station:

- 10/100 Base-T

Base Station:

- IP, V11, G703

Telephone Network:

- ISDN-PRI and ISDN-BRI Other Switches:

- Through Inter-system Interface (ISI) Gateways

LINKS

OPERATION

The IP@node-TSW10 performs all the tasks included in level 3 (SwMI, MLE, MM, CMCE, SDS, SS) and above (Application Layer) of the TETRA standard, as well as communication and mobility management (monitoring via the administrative console and access to external applications through IP dispatching)

Technical database:

- Configuration files for the different base stations

- Configuration files for the sub-assemblies that comprise the switch

- Routing table showing flows between equipment on the network

- Network operating parameters

Administrative database

- Acceptance criteria for visitor mobiles

- Declaration of resident mobiles and groups

Supervision exchanges

- Monitoring allows the network to be supervised on a constant basis, by regularly sending the administration console any synthetic information that describes the status of all network equipment (links, base stations, dispatching centers, etc.)

Event files:

- Network technical alarm acknowledgment

- Mobile registration and deregistration

- call requesting

- Establishment and ending a call

- Group assignment.

EXCHANGES WITH ADMINISTRATION CONSOLE

Exchanges between the switch and the base stations are conducted either on an IP channel, or on a structural link (G703 or V11). In IP mode, the base stations attempt to connect to one of the switches in a particular order of preference. As soon as a connection has been established between a switch and a base station [virtual connection on IP or actual connection via structural link], the switch downloads that base stations configuration.

- Voice signaling and data transmission:

o The data to be circulated to all mobiles in the area covered by the base station

o Mobile registration and allocation data

o Voice-signaling data

o Voice blocks

o Data transmission

o SDS messages

o Packet data

- Operation procedure:

The switch manages the way each base station operates, with:

o The allocation of channels, in particular the MCCH and SCCH channels

o An energy-saving mode

EXCHANGES WITH THE BASE STATIONS

The switch can be made redundant with automatic switching, an option that offers particularly high

performance in the event of software or hardware failures. In this case, both switches constantly receive

the same information from all the other components of the network. Only one of the two is active at any

one time for data transmission.

Switching

Overriding in manual mode:

The front panel of the switch unit includes a three-position control knob that makes it possible to force

operation on either one of the switches, or to automatic mode. The active switch is also indicated on the

administration console.

Automatic mode:

In automatic mode, the switchover from the active switch to the other switch is made

- By issuing a switchover request via the administration console

- Upon detection of a failure on the active switch

Several identical switches can be connected to a single IP network that links the base stations

together. Normally, only one of the switches on the network is active, with the others being placed in

standby mode. If the active switch fails, the base stations automatically switch over to one of the back-

up switches.

Thus, if the IP network is split into several parts (e.g., if a crucial link is lost within the network), the

TETRA network automatically divides up into several sub-networks, each managed by a switch

located on its own sub-network

Redundancy (IP Links to Base Stations)

Redundancy

Features and Services

Voice services

- Individual /Group,

- Half-duplex / Duplex

- PABX/ PSTN, Normal

- Priority/Emergency

- Multiple group management

Main supplementary services

- Dynamic Group Number Assignment (DGNA)

- Late Entry(LE)

- Ambience Listening (AL)

- Discreet Listening (DL)

- Calling Line Identification (CLI)

- Talking Party Identification (TPI)

- Priority Call (PC)

- Preemptive Priority Call (PPC)

- Call Retention (CR)

- Call Forwarding (all variants: CFB, CFNRy, CFNRc, CFU)

- Barring of Outgoing Calls (BOC)

- Barring of Incoming Calls (BIC)

- Call Authorized by Dispatcher (CAD)

Data services

- Status to individual or group address

- SDS (type 1, 2, 3 & 4) to individual or group address (with or without TL)

- Simultaneous Status & SDS data during voice call

- SCCH Secondary Control Channel (up to 3 SCCH)

- Circuit Mode Data

- Multislot Packet Data (up to 4 slots)

Management:

- Fault Management

- Configuration Management

- Accounting Management

- Performance Management

Provisioning

- Virtual Private Networks (VPN) Management

- Users and Groups Managements

TECHNICAL SPECIFICATIONS

Capacity:

o Number of Base Station: Max 96

o Number of SCN in parallel: No Restriction

o Number of Dispatchers: No Restriction

o Number of Administration Console: No Restriction

o Number of Subscribers: 10,000 Individual and 2,000 Group

Synchronization

o GPS/External Clock

Security

o End to End Encryption (E2EE) Supported but a function of Terminals

o Air Interface Encryption (AIE) Subject Export License Approval

Ethernet Interface:

Physical Interface: 10/100 Base-T

Connector: RJ45

Gateways:

o PABX/PSTN Gateway

o PDN Gateway

o PMR Gateway

o ISI Gateway

Redundancy

o Full Redundancy Capability

Power supply:

220 Volts AC (+/- 20%)

48 Volts DC (+/- 20%)

Electrical consumption :