Electronique Telematique ETELM Canada BSTETRA460 Tetra Base Station User Manual netis B maintenance guide V1 1
Electronique Telematique ETELM Canada Inc Tetra Base Station netis B maintenance guide V1 1
Contents
netis B maintenance guide V1.1.part3
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8.1.1.2 IT configuration on the Switch
We will use the network management terminal to identify the link it number to the SWITCH
as well as the position in the SWITCH rack of COM3 in charge of the link: Position 1 to 12
for a standard chassis.
In CONFIGURATION / SETTINGS.
Right click on a BS then select Name Tc/Ts.
The window below appears. The G703 link configuration has a red border:
Junction: Link type
Voice/@IP: corresponds to the link it number
Board: corresponds to the location of the COM3/4 board in the SWITCH (Counting from the
SUPIP)
The Tx=Rx check box means that the dialogue it is identical for both sides of the link.
For the In and Out settings and the preferred direction refer to paragraph 9.1.2 Ring Network
The In and Out list zones must be filled in as in the window:
Ins: for the link the SWITCH 0/1 SW precedes the BS for consultation
Outs: for the link, no equipment succeeds the BS for consultation
Fault analyses and diagnosis
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8.2 « Ring » network
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8.2.1 O
PERATING PRINCIPLES
Link type: always G703
Type of module in charge of the link: COM 3/4
Normal operations: (see §9.1.2.2)
Each NeTIS-N appliance transmits data to the NeTIS-Bs on an it in both directions of the loop
and extracts data from the NeTIS-Bs only from one direction at a time
Each NeTIS-B appliance transmits data to the NeTIS-Ns on an it in both directions of the
loop and extracts data from the NeTIS-Ns only from one direction at a time depending on the
preferred direction selected in the settings
More precisely, the COM3 or COM4 board plays the role of G703 interface on the BS side
and the SWITCH side, it permanently transmits on both G703 junctions; The signal received
at these junctions are analysed and the indicators on the front face make it possible to know
the state of these junctions:
'ERR’ indicator: red indicator lighting when a line error is detected on the junction or
if there is no 2Mb/s signal (disconnection for example).
Yellow 'Rx’ indicator: flashes when a G704 synchronisation is detected; stays on
when a synchronisation is detected and the link with the switch is established.
Carte(s)
COM
Carte(s) COM
Carte
COM
Carte
COM
Carte
COM
Carte
COM
SWITCH Site 1
Site 2
Site 3
Site i
REBOUCLAGE
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In the case of correct reception on both sides (A and B), the COM board only keeps the
signals received from the side declared as preferred (settings on the network management
terminal).
The board injects signals corresponding to the TBS11 in the assigned time slot (programming
on the rear face of the NeTIS-B see §9.1.1.1) on both junctions A and B at the same time and
transparently retransmits the other time slots, in both directions from one junction to the next
and vice versa.
8.2.2 F
AULT ANALYSES AND DIAGNOSIS
8.2.2.1 Presentation
We are going to study a network composed of:
A SWITCH
A one BS SITE N° 1
A one BS SITE N° 2
The network architecture is shown below:
Here its operation is correct
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8.2.2.2 NeTIS-B configuration
Each NeTIS-B on the network must be configured to work on an it from the G703 link (see
§9.1.1.1)
8.2.2.3 NeTIS-N configuration
The SWITCH is configured via the network management terminal
A double click on the SWITCH in monitoring mode displays the following window
All the connected resources in the SWITCH are visible
To find out the role of each of the COM3 or 4 boards, view the BS states
To do this access the SYNOPSIS area of the network management terminal and double
click on the BS
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The COM3 and COM4 board locations in the SWITCH and it is used on the network
are configured as follows:
Right click on the BS, and then click on Name TC TS and select the Communications
link
Click Double Click
COM board location in
the SWITCH in charge
of direction A
COM board location in
the SWITCH in charge
of direction B
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8.2.2.4 Fault N° 1:
Link cut between the SWITCH and the BS for site 1 and the network is operational in the B
direction.
Network management terminal synopsis view
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Direct observation on the COM3 boards:
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Messages in the network management terminal history/tickets
8.2.2.5 Fault N°2:
Link cut between the two radio sites
Site 1 is connected to the Switch in direction A
Site 2 is connected to the Switch in direction B
Network management terminal synopsis view
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Direct observation on the COM3 boards:
! "#$%&
!"#$%
#$%
#$%
'!
#
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Messages in the network management terminal history/tickets
8.2.2.6 Fault N°3
Link cut between the SWITCH and site 2
Both sites are connected to the Switch in direction A
Network management terminal synopsis view
(
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Direct observation on the COM3 boards
)
! "#$%&
!"#$%
#$%
#$%
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Messages in the Network management terminal history/tickets
8.3 Ethernet link (IP)
This chapter describes the different types of IP exchanges between the different BSs, Operator
stations, Phone gateways, etc... for a TETRA IP network.
8.3.1 G
ENERAL PRESENTATION
The general architecture of a TETRA network uses several elements:
Base stations communicating with mobiles and linked to the switch(es)
One or more switches (that can be linked together) eventually interconnected to
external networks (phone networks)
One or more operator stations.
Various applications (Recorder, phone gateways, etc ...)
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All the elements of the radio network are linked together through an IP network.
The radio network clients (BS, Operator station, etc ...) have a minimum configuration,
adding an element must not cause the reconfiguration of existing elements.
SWITCH
A
B
B
IP
SWITCH
B
B
B
IP
SWITCH
C
B
B
IP
IP
PABX
PSTN
Others applicatif
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8.3.2 C
OMMUNICATIONS BETWEEN APPLIANCES
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8.3.3 C
USTOMERS
8.3.3.1 Phone applications
These applications need to use signalling and phone.
(Operator stations, Phone gateways, etc.).
Operator station
TCP/IP links
UDP reception
IP
TCP
Customer to
highest
priority
SWITCH
Customer
UDP
Signalisation
Phone UDP
customer
UDP broadcast
UDP reception
Customer
UDP
Identification
TCP customer
to lower
priority switch
TCP/IP links
Reception of all switches present on the
network and management of a dynamic
switch table.
.
Switch signalling channel reception with
the highest priority for communications
management
.
Link with the highest priority switch for
communications management, it is the
"active" link.
Reception of transmission from the
PHONE channel
Link with the lowest priority switch and
connection with the highest priority
switch that arrives on the network.
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8.3.4 N
ETWORK SETTING
8.3.4.1 Role of the UDP Identification Server
Each switch broadcasts an identification message on a UDP channel permanently (every
5 seconds).
The UDP port number used for this broadcast is therefore part of the minimum information
needed in the Clients (NeTIS-B, Operator Station etc...) wanting to connect to the radio
network.
This message makes it possible for the BSs to send information about themselves to the
servers (NeTIS-N): CPU IP addresses, Switch N°, SUP IP addresses
Then the SWITCHES send the following information to the clients:
IP address and Port of the BS signalling server (see §9.3.4.4)
IP address and Port of the BS Phone server (see §9.3.4.4)
The port used to broadcast this message and the broadcasting address are set via the network
management terminal and transmitted to the NeTIS-N by downloading.
A file in the NeTIS-B is used to declare the identification port used by the NeTIS-N(s).
8.3.4.2 UDP identification server configuration
The UDP identification server is in fact the NeTIS-N
The server is configured from the network management terminal as shown below
In
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Select « IGMP » tab
The broadcast of server information (NeTIS-N) to the clients (NeTIS-B) is carried out using a
Broadcast address and is defined as shown below
Select the "Configuration" tab
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8.3.4.3 Port identification declaration on the NeTIS-B side
A base station that wants to connect to the tetra network listens on its identification port in
order to obtain the information from the different SWITCHES on the network with their
priority level.
To declare this port, a configuration file (Text) stored on the NeTIS-B must be read the path
of which is /USR/BsLinux/nano CONFIGBS.CFG.
Below the content of the CONFIGBS.CFG file shows that the identification port is "51114"
"Top of file
######### IP PARAMETERS
PORT_IDENTIFICATION = 51114
[ Read 62 lines ]
^G Get Help ^O WriteOut ^R Read File ^Y Prev Page ^K Cut Text ^C Cur Pos
^X Exit ^J Justify ^W Where Is ^V Next Page ^U UnCut Txt ^T To Spell
"End of file
8.3.4.4 IP Network without using the identification port
If the port is not filled in in the BS, then port "51114" is used as a default.
It is not mandatory to use the identification port. If you know the SWITCH IP addresses
(CPU and SUPIP) and the signalling and phone ports that are used, then they can be added to
the CONFIGBS.CFG file as shown below.
"Top of file
######### IP PARAMETERS
IP_SWITCH = 192.168.1.100
PORT_SWITCH = 50020
IP_SUPIP = 192.168.1.3
PORT_SUPIP = 50021
[ Read 62 lines ]
^G Get Help ^O WriteOut ^R Read File ^Y Prev Page ^K Cut Text ^C Cur Pos
^X Exit ^J Justify ^W Where Is ^V Next Page ^U UnCut Txt ^T To Spell
IDENTIFICATION
PORT N°
Commands to close
the file for example:
CTRL X(^ X)
ACTIVE SW CPU+signalling port
ACTIVE SW SUPIP+Phone port (§9.3.4.5)
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"End of file
8.3.4.5 Checking the IP configuration on the BS side
Once the Niveau2 software is running it is possible to activate different network management
terminal using the ALT+Fx keys, without disturbing the current application
Connect a screen and keyboard and press the "ALT F2" and "L" keys, the display below
appears:
"start of display
* 0 client connected with server 4 on port 55555 , socket 16
*** NbClient=0 found=0
* Connected at server no 0 : 192.168.1.124 port=50400 with socket 14 (69s)
* Connected at server no 1 : 192.168.1.125 port=50401 with socket 15 (69s)
--> UDP Address UDP 0: 192.168.1.121 port : 50300 TX_ONLY socket=19
--> UDP Address UDP 3: 192.168.1.121 port : 50401 FULL_DUPLEX socket=12
Port used for
maintenance
(Spy etc.)
Port used for
maintenance
(Spy etc.)
Bs connected
to the switch
SWITCH CPU
IP address
BS Signalling
port Socket N°
Bs connected
to the switch
SWITCH
SUPIP IP
BS Phone Port
Socket N°
UDP Protocol
BS IP address
SWITCH CPU
signalling port
Port open in
the TX
UDP Protocol
BS IP address
BS Phone Port Port open in
TX and RX
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--> UDP Address UDP 4: 192.168.1.121 port : 51111 FULL_DUPLEX socket=13
"end of display
8.3.4.6 Role and setting of the BS signalling and phone servers
The role of the signalling server is to exchange the following information in TCP:
Base station operating parameters
Communications management
The role of the Phone server is to exchange the following information in TCP:
Phone in the communications
The two ports are made known to the server (NeTIS-N) using a download of the equipment
database from the network management terminal.
Port configuration on the network management terminal side:
In
UDP Protocol
BS IP address
Default
identification
port
Port open in
TX and RX
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8.3.5 D
ECLARATION OF THE
N
E
TIS-B
ADDRESSES ON THE TETRA CS SIDE
The SWITCH has a view of all the BSs that are part of the network via their IP address
configured as shown below.
When a configuration request for a BS is received, the SWITCH can load its configuration
using the BS IP address.
This address is also used to route phone and network communications.
In
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IP-TCP: All Signalling and Phone exchanges use TCP/IP
IP-UDP: All Signalling exchanges use TCP/IP
All the Phone exchanges use UDP/IP
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8.3.6 S
WITCH SIGNALLING AND PHONE PORT
These SWITCH CPU ports and addresses will be used by the DISPATCHING.
The Operator Stations must know the CPU IP (Signalling) address and the associated
Signalling Port.
As well as the phone port used by the SUPIP board. The SUPIP IP address is not used by the
operator stations because phone is broadcast directly onto the IP network (UDP protocol)
whereas for signalling both the TCP and UDP protocols are used.
The SWITCH is configured by a download from the equipment database from the network
management terminal.
8.3.7 S
ECONDARY NETWORK MANAGEMENT TERMINAL
8.3.7.1 General
A network always has a primary network management terminal connected using an RS232
link to the NeTIS-N.
You can add secondary network management terminal connected using IP to the main
network management terminal .
The rights of the secondary network management terminal are limited to network monitoring
and to the ticket history (Logging) and you cannot load configurations to the NeTIS-N from
it.
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8.3.7.2 Secondary network management terminal installation
Retrieve the TetraCs directory from the primary network management terminal and paste it
under the C: root of the new PC.
Create an application short cut and in the "Target" field of the tetraCs properties
add the word "secondary" as shown below:
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Launch the application
8.3.7.3 Configuring the main network management terminal
The main console is considered to be a server to which the secondary network management
terminal will connect.
To do this, just declare a port for exchanges between consoles.
The server listens on the port defined below.