Alcad ST-100 User manual

Technote 6: Setting up ST-100 Terrestrial IP Streamers
DVB-T to IP streaming equipment (ST-series) broadcasts multicast streams and TV/radio
channels, selected from a DVB-T multiplex (maximum 8), from digital terrestrial reception, over
a TCP-IP network. TV services broadcast as IPTV streams can be viewed on an individual
IPTV receiver or by using video reproduction software. The ST modules are configured via
TCP/IP, using either the HTTP protocol (web browser) or TELNET (virtual terminal).
IMPORTANT:It is possible to connect up to 9 ST- 100 modules and 7 ST-110
modules per power supply unit. Each ST module can handle up to 8 MPEG streams; the
IP broadcast, therefore, consists of 8 TV/radio services per module.
IMPORTANT:Layout of the modules must be as shown above. Power Supply (FA-
310/312) must be located on the far left hand side and Terrestrial IP streamer must be the next
module in the chain. Please look at the above picture.
Ensure the following prior to programming:
•It is necessary to connect all the modules to the support frame SP-226 (code 9120130)
for the system to function.
•It is also recommended that you make the earth connection to the building using a cable
with a section of at least 4 mm.
•Power supply/Control cable must be plugged into each module. DO NOT ADD OR
REMOVE modules without disconnecting mains supply power from wall outlet. Always
disconnect the equipment, and then reconnect it to the mains supply. Failure to do so
can cause equipment to fail.
Power Supply
Automatic power Injection
for masthead amplification

SPECIFICATIONS
Frequency range output of modulators 46MHz --- 862MHz
Operating temperature of Modulators - 10ºC --- +65ºC
Output Level Adjustment 15dB
Input Level 45 - 100dBµV
Streaming Format Multicast UDP, RTP
Supported Protocols IPv4 UDP, RTP, ARP, ICMP, HTTP, TELNET
1.0 PROGRAMMING THE ST MODULE
Once the DVB-T to IP streaming equipment (ST-100/101) has been assembled, each ST
module can be configured. All ST modules use a factory default IP address: 192.168.10.100.
In order to avoid conflicts with other IP addresses, it is necessary to perform an initial
configuration in local mode. Subsequently, it will be possible to access the DVB-T to IP
streaming equipment ST-100 via the local area network (LAN), either to re-programme it or to
check is operating status.
The picture above shows local mode configuration accessing each streamer individually and
assigning new IP addresses. This is strongly advised prior to LAN network connection.
The ST modules have a factory default TCP/IP configuration of:
IP address of the module: 192.168.10.100
Subnet mask: 255.255.255.0
Default Gateway: 192.168.10.1

To access each ST module, use a PC or MAC personal computer equipped with an Ethernet
card and an RJ- 45 cable (CAT-5E or CAT-6).
The IP address of the PC/MAC must be configured within the following range: 192.168.10.2 –
192.168.10.254 (do not use 192.168.10.100, as this is the IP address of the module to be
configured).
2.0 INTRODUCTION TO THE ALCAD IPTV WEB INTERFACE
To start configuring the IP streamers, open the Internet Browser of your preference, and then
type in the address of the streamer which by factory default is set to: http://192.168.10.100
The first page of the ALCAD IPTV graphical user interface will appear on the screen. Access
to the site is protected by username and password. By factory default, the first time the module
is accessed, the username and password is:
User name: alcad
Password: alcad
PLEASE NOTE: Web browser can be Internet Explorer, Mozilla, and Google Chrome

Once you have entered the username and passwords the ALCAD IPTV user interface will be
displayed, which can be seen below.
This is the main navigation menu. Using it, you can switch between the 5 different
configuration menus. The rectangle highlighted in black shows which main menu is active at a
given moment.
The 5 main navigation menus open several configuration screens (Sub-menus) which are
selectable on the configuration bar. To switch between the different configurations screens of
the main menu, click on the tabs of the black configuration bar at the top which can be seen
below
Main Navigation Menu
Main Navigation
Menu
Configuration
Bar (Sub-Menu)
Tabs (Sub-Menu)

DESCRIPTION OF THE ALCAD IPTV Graphical User Interface
The different parts of the ALCAD IPTV Graphical User Interface are shown below:
1 - Click on the ALCAD logo to go to our website: www.alcad.net
2 - ST series model
3 - Version of Firmware (FW) and Hardware (HW) of the module
4 - Main navigation menu
5 - Configuration area
6 - Configuration Bar with tabs
ENG
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5
1
2
3
6

MAIN NAVIGATION MENU OF THE ALCAD IPTV Graphical User Interface
1.0 Status
This shows information concerning the status and configuration of each block of the ST
module. It is a visual menu only and cannot be modified.
Streamer status
This shows the data of the ST module and a list of the multicast services selected.
Device: model of the ST module.
S/N: serial number of the ST module. Code of the ST module, date of manufacture, and MAC
address (only the last 8 digits).
Payload Format: data format of output streams (UDP, RTP).
Streamer Status: Displays streaming status of the ST module (Streaming, Stopped).
Current
operating
status of the
ST module
(Streaming,
Stopped).
Output stream
format
Serial Number
Model of Device

DVB-T NIM Status
From the Configuration bar the next sub-menu tab is “DVB-T NIM Status”
DVB-T NIM Status
Displays the programmed data of the input tuner of the ST module at a point in time. To see
the BER values at a given instant, press the button on your web browser.
Signal Status: Input signal hook-up indicator.
Channel or Frequency: Input channels (C5–69) or input frequency.
Standard: Standard of the country BG, D/K, I. Australia Select BG ONLY
Offset: Offset of the input signal (Auto, -3/6 –+3/6 MHz).
Bandwidth: Bandwidth of the channel (6, 7 or 8 MHz). Australia Select 7MHz ONLY
BER: quality of the input signal.
Quality of
Input Signal
Bandwidth
Set 7MHz
Tuned to broadcast
carrier
Input Centre Frequency
without OFFSET
OFFSET of
carrier

Network status
From the Configuration bar the next sub-menu tab is “Network Status”
Network Status
Displays the network data programmed on the streamer.
Link: correct connection with the network.
Link Speed: bit speed and Ethernet output.
Configuration Type: fixed or random IP (Static IP, Automatic DHCP).
IP address: IP address of the ST module (Factory-set IP: 192.168.10.100).
Subnet mask: subnet mask
Default Gateway: gateway for access to Internet, predetermined as 192.168.10.1
MAC address: identifying address of each ST module (00:1D:21:XX:XX:XX).

Log status
From the Configuration bar the next sub-menu tab is Log Status”
Log Status
Displays a log of timed events that have occurred within the module. Each event that has
occurred in the ST module has a date and time. If events are marked with an asterisk (*), it
indicates that at the moment at which the event occurred, the date and time displayed were
not synchronised. The list shows the last 10 events to have occurred.
To empty the list of messages, click
The time synchronization of ST-module comes from incoming broadcast carrier.
Logged events can be saved onto a local file, click
CLEAR
event list
SAVE logged
events

2.0 Network
From the “Main Navigation Menu” network settings can be configured from Network tab
The network configuration can either have a fixed IP address (Static IP) or have one which is
automatically assigned by a DHCP server (Automatic DHCP).
Configuration Type: Static IP, Automatic DHCP
IP address: IP address of the ST module (factory-set value of 192.168.10.100).
The range of configurable IP addresses is: 192.168.0.2 – 192.168.255.254
Subnet mask: factory-set value of 255.255.255.0
Configuration range: 0.0.0.0 – 255.255.255.0
Default Gateway: gateway for access to Internet (factory-set value of 192.168.10.1)
The range of configurable IP addresses is: 192.168.0.1 – 192.168.255.254
To save any changes made to Network settings click

DVB-T NIM
From the “Main Navigation Menu” changes to the input carrier frequencies are made from the
DVB-T NIM tab.
DVB-T NIM
Displays parameters of the input multiplex and status, levels and quality of the input signal.
The data must be entered in compliance with the broadcasting configuration of the transmitter
at which the antenna is receiving the signal from.
Channel: Used to select the tuning mode of the input signal by choosing the channel.
Frequency: Used to select the tuning mode of the input signal by entering the frequency
(central frequency of the multiplex). The range of frequencies to be programmed is: 174-230 /
470-862 MHz.
Bandwidth: Selection of the bandwidth of the multiplex. The configuration range is: 6, 7 or 8
MHz.
Offset: Configuration of the offset of the input multiplex. Configuration values: Auto, -3/6, 2/6,
1/6, 0, 1/6, 2/6, 3/6 MHz
To save the input parameters you have entered, click on the Tune button.
Status: Shows if the ST module has
hooked up to the selected multiplex.
(Locked, Not Locked).
BER: Quality of the input signal (Bit Rate
Error before Viterbi correction) When the BER
is low (>1E-3), the indicator becomes red.
Signal Level: Level indicator of the input
signal. (High, OK, Low).

Output Stream
From the “Main Navigation Menu” selections can be made to the TV/radio services that are to
be broadcast on the TCP/IP network, and are made from the Output Streams tab.
.
Service selection
From the list of services (acquired from the previously-tuned TDT multiplex) that appears in the
screen, a maximum of 8 services can be selected.
To select the services you wish to broadcast over the TCP/IP network the checkbox must be
ticked in the service list table. Once the selections have been made, click button.
For advanced users options related to the services to be broadcast. To open this menu, click
on the Select PIDs button. Within this menu it is possible to select the PIDs to be broadcast for
each service (the video PID cannot be disabled). It is also possible to select or deselect all the
PIDs simultaneously by clicking on the Select All or Deselect All buttons.
By default, all the PIDs are selected and remain so until this configuration is altered.
PIDs Selection: enables you to select the PIDs associated with each service (audio, teletext,
subtitles).

After you have made your selection, confirm it by clicking on the Apply button.
Multicast Assignment
This is used to configure the multicast addresses for the services to be broadcast.
Multicast Base Address/Port: used to assign IP addresses and ports to each TV/radio
channel automatically. The configuration range is: 224.0.0.1 – 239.255.255.255 Port 0 – 65535
QoS (Diff Serv): assigns 4 possible levels of priority on the network stream (factory-set value:
AF33 - Highest Priority).
AF33 - Highest Priority
AF32
AF31
CS3 - Lowest Priority
Bear in mind that the switches of the network must be configured with the same priority.
Stream Payload Format: data format of the output streams (UDP or RTP).
TTL: time to live of the packet measured in the number of networks crossed (1 – 255).
Streamer Status: Indicator of operation of the module (Streaming or Stopped).
You can now access all the configuration screens. As you will see, each screen contains a
number of different fields in which to enter and validate the configuration data for each module.
The following sections of this manual explain in detail how to program each screen.

To confirm the configuration, click on the Apply & Start button.
SAP MANAGEMENT
Within the Multicast Assignment menu, advanced configuration options are available. These
allow you to select the Service Announcement Protocol (SAP) data to be sent and the IP
address they are to be sent to. To enable SAP Management click
SAP Default Multicast Address: sends the list of selected TV/radio services to the assigned
address (224.2.127.254: 9875 is the default address of the IP receivers). This IP address can
be configured by the user: to do this, click on the Enter New button, and enter the desired IP
address and port in the appropriate fields.
Announcement Interval: length of time between SAP announcements (by default, 2 seconds)
SAP Service: List of services to be sent
To save the changes, click on the Apply button.
Streaming Control

This is used to control the status of the ST module. There are two possible states: streaming,
i.e. sending a stream of data; or stopped, i.e. sending no data through the RJ-45 output.
Streamer: Start or stop the ST module by clicking on either Start or Stop.
Streamer Status: shows whether the ST module is functioning or not (Streaming, Stopped).
Maintenance
Maintenance and adjustment of the ST module.
Download
This is used for both the update of the firmware of the ST module and for remote configuration;
and even for making backups of the configurations.
Update Firmware: updates the firmware of the ST module. The extension used is: *.axf
Upload Configuration: Enables you to automatically upload the configuration parameters of
ST module after they have been saved. The extension used is: *.scn
Download Configuration: saves the configuration of the ST module in a file. The extension
used is: *scn

System Log
This sends incident messages generated in the ST module to a syslog server on the network.
System Log Messages: enables or disables the error-forwarding feature Enabled, Disabled.
Log Server IP Address: IP address of the syslog server to which data concerning incidents
will be sent. The range of possible addresses is 192.168.0.2 – 192.168.255.254.

Password
This menu item allows you to change the username and password.
New Username: enter the new username in this field.
New Password: enter the new password in this field.
Re-type Password: confirm the new password by re-typing it in this field.
Please press button for username and password changes to take effect.

Utilities
Utilities for the ST module.
Blink LED: Clicking on the Blink button will cause the TSP indicator of the ST module to flash
for several seconds. This option can be used to physically identify, on the headend, the
module which is being programmed.
Reset to factory defaults: Clicking on the Reset button resets the configuration of the ST
module to the factory default values.
Reboot module: Clicking on the Reboot button causes the ST module to restart.

AUSTRALIAN DIGITAL/ANALOGUE FREQUENCY TABLE

ACRONYMS
ARP- Address Resolution Protocol is a telecommunications protocol used for resolution of network
layer addresses into link layer addresses, a critical function in multiple-access networks. ARP has been
implemented in many combinations of network and overlaying internetwork technologies, such as IPv4
HTTP -Hypertext Transfer Protocol is a networking protocol for distributed, collaborative,
hypermedia information systems. HTTP is the foundation of data communication for the World Wide
Web HTTP functions as a request-response protocol in the client-server computing model. In HTTP, a
web browser, for example, acts as a client, while an application running on a computer hosting a web
site functions as a server. The client submits an HTTP request message to the server. The server,
which stores content, or provides resources, such as HTML files, or performs other functions on behalf
of the client, returns a response message to the client. A response contains completion status
information about the request and may contain any content requested by the client in its message
body. A web browser (or client) is often referred to as a user agent (UA). Other user agents can include
the indexing software used by search providers, known as web crawlers, or variations of the web
browser such as voice browsers, which present an interactive voice user interface. The HTTP protocol
is designed to permit intermediate network elements to improve or enable communications between
clients and servers.
IP Address - Internet Protocol address is a numerical label assigned to each device (e.g., computer,
printer) participating in a computer network that uses the Internet Protocol for communication.[An IP
address serves two principal functions: host or network interface identification and location addressing.
ICMP -Internet Control Message Protocol is one of the core protocols of the Internet Protocol Suite.
It is chiefly used by the operating systems of networked computers to send error messages indicating,
for example, that a requested service is not available or that a host or router could not be reached.
ICMP can also be used to relay query messages. ICMP differs from transport protocols such as TCP
and UDP in that it is not typically used to exchange data between systems, nor is it regularly employed
by end-user network applications (with the exception of some diagnostic tools like ping and traceroute).
IPv4 -Internet Protocol version 4 is a connectionless protocol for use on packet-switched Link Layer
networks (e.g., Ethernet). It operates on a best effort delivery model; in that it does not guarantee
delivery, nor does it assure proper sequencing or avoidance of duplicate delivery. These aspects,
including data integrity, are addressed by an upper layer transport protocol, such as the Transmission
Control Protocol (TCP)
UDP - User Datagram Protocol uses a simple transmission model without implicit handshaking
dialogues for providing reliability, ordering, or data integrity. UDP assumes that error checking and
correction is either not necessary or performed in the application, avoiding the overhead of such
processing at the network interface level. Time-sensitive applications often use UDP because dropping
packets is preferable to waiting for delayed packets, which may not be an option in a real-time system.
Real-time Transport Protocol (RTP) defines a standardized packet format for delivering audio and
video over IP networks. RTP is used extensively in communication and entertainment systems that
involve streaming media, such as telephony, video teleconference applications and web-based push-
to-talk features. RTP is used in conjunction with the RTP Control Protocol (RTCP). While RTP carries
the media streams (e.g., audio and video), RTCP is used to monitor transmission statistics and ‘quality
of service’ (QoS) and aids synchronization of multiple streams. When both protocols are used in
conjunction, RTP is originated and received on even port numbers and the associated RTCP
communication uses the next higher odd port number.