Televes 554501 User manual

DVB-T Modulators
EN
Refs. 554501
554601
User´s Manual
www.televes.com


ENGLISH
EN
Index
1. Introduction..................................................................... 4
1.1 Productoverview ............................................................ 4
1.2 Blocksdiagram.............................................................. 4
1.3 Technicalspecications ...................................................... 4
2. Productdescription .............................................................. 5
2.1 Indicatorsandcontrols ....................................................... 5
2.2 Installationprecautions ....................................................... 6
3. Operation ...................................................................... 6
3.1 Buttonintroduction .......................................................... 6
3.2 Initialstatus ................................................................ 6
3.3 Generalsettingformainmenu ................................................. 6
4. Encoders ....................................................................... 8
4.1 Specication................................................................ 8
5. Webnmsoperation .............................................................. 9
5.1 Login ...................................................................... 9
5.2 Congurationsetting ......................................................... 9
6. Troubleshooting ................................................................. 12
7. Application ..................................................................... 12
7.1 Orderingguideline ........................................................... 12
7.2 Applicationexample ......................................................... 13
7.3 Conguration example for more than one unit in the same installation . . . . . . . . . . . . . . . . 13

DVB-T Modulator
4
1. Introduction
1.1 Product overview
The product is presented for two types of mounting: onto the wall (Ref. 554501),
and 19 inch cabinet mounting (Ref. 554601).
The modulator converts the HD A/V baseband signals into a DVB-T multiplex of
RF within the range 30 ~ 960 MHz.
It features 2 encoders, which are accessed by F-type connectors, and 1 additional
RF input. The signals can come from satellite receivers, CCTV cameras, Blu-
ray players, antennas, ... etc. Its output is a DVB-T TV multiplex which can be
received with the corresponding DTT STB.
The device can be used for monitoring, training courses and presentations,
schools, universities, hospitals, ..., in addition to being the best choice for public
premises which oer sporting events, VIP entertainment channels,.. and other.
1.2 Blocks diagram
1.3 Technical specications
DVB-T modulator section
Standard EN300744
FFT mode 2K, 8K
Bandwidth 6M, 7M, 8M
Constellation QPSK, 16QAM, 64QAM
Guard Interval 1/4, 1/8, 1/16, 1/32
FEC 1/2, 2/3, 3/4, 5/6, 7/8
MER ≥42dB
RF frequency 30~960MHz, 1KHz step
RF output level -30~ -10dBm (81~97 dBμV),
0.1dB step
Interface
Front panel buttons, LCD display
Remote
management Web NMS
Language English, French
General
Mains AC 100V~240V
Dimensions 360 x 280 x 50 mm (554501)
480 x 300 x 44 mm 1U rack 19” ( 554601)
Weight 2.6 kgs
Operating
temperature 0~45 ºC
Congurations
LCN cong Yes
NIT Table cong Yes
Settings
Network Name Yes
Network ID Yes
Transport Stream ID (TSID) Yes
Original Network ID (ONID) Yes
Hierarchy Information Yes

EN
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2. Product Description
2.1 Indicators and controls
10
10
11
11
12 13 14 15
23
2 3
1
5
9
8
7
4
6
12 131514
4 5 6 7 8 91
554501
554601
1 LCD display
2NMS port
3IP port
4ON LED and alarm LED
5 Locking LED
6Up/Down and Left/Right buttons
7ENTER button
8MENU button
9Locking button
10 Encoder 1 slot (open)
11 Encoder 2 slot (with tap)
12 RF input
13 RF output
14 ON/OFF switch
15 Mains socket

DVB-T Modulator
6
2.2 Installation precautions
This section to explain the cautions the users must have to avoid any injures
when using or installing the product. For this reason, please read all details here
before installing or using the product.
General Precautions
Must be operated and maintained free of dust or dirty.
The cover should be securely fastened, do not open the cover of the products
with the power on.
After use, securely stow away all loose cables, external antenna, and others.
Power precautions
When you connect the power source, make sure it will not cause any overload.
Avoid operating on a wet oor in the open. Make sure the extension cable is
in good condition.
Make sure the power switch is o before you start to install the device.
Grounding Requirement
All function modules’ good grounding is the basis of reliability and stability of
devices. Also, they are the most important guarantee of lightning arresting and
interference rejection. Therefore, the system must follow this rule.
Grounding conductor must be a copper conductor in order to reduce high
frequency impedance, and the grounding wire must be as thick and short as
possible.
Users should make sure the both ends of grounding wire are electric
conductor and antirust.
It is prohibited to use any other device as part of grounding electric circuit.
The area of the conduction between grounding wire and device’s frame
should be no less than 25mm2
3. Operation
3.1 Button introduction
LCD display window.
Display window for setting menu
Status display when power On.
Setting value up
and moving up
To move left To move right
Setting value down
and moving down
Back step
Conrm setting Lock button
3.2 Initial Status
Switch On, then below status will be displayed, few seconds’ initialization then
open startup picture
DVB-T: indicate the modulation standard of this device
XXX.XX MHz: indicate the output frequency, and the frequency range is
30~960MHz
X.XX Mbps: indicate the encoding bit rate in slot 1
Y.YY Mbps: indicate the encoding bit rate in slot 2
3.3 General setting for Main Menu
By pressing “Lock” key to enter the main menu, the LCD will display the
following pages:
User pressing UP or DOWN buttons to specied menu item, and then pressing
ENTER to enter the submenus as below:
1) Alarm status --- the alarm indicator will light on if there is no A/V signals
input.
2) Encoder setting --- choose this submenu, the LCD will show “input setting”,
press the ENTER key and control the UP or Down key to move the arrow.
User could nd how to set the audio and video encoding bit rate.
3) Modulator setting
When the “modulator setting” submenu has been chosen, users can nd below
dierent parameters for setting. And the LCD window would respectively show
like these.
- Bandwidth
There are three possible options provided for selecting bandwidth: 6M, 7M, and
8M. When the display shows them, user just need swift LEFT and RIGHT key to
choose and repressing“ENTER”for conrm.
- Constellation
Three dierent constellations: QPSK, 16QAM, and 64QAM will be show on the
LCD window when Constellation been entered.
- QPSK: Quadrature Phase Shift Keying, Selecting this option indicates the
device works as DVB-S modulation mode
- 16QAM: Quadrature Amplitude Modulation is 16
- 64QAM: Quadrature Amplitude Modulation is 64

EN
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Setting method just the same, when the display shows them, user just need
swift LEFT and RIGHT key to choose and repressing“ENTER” for conrm.
- Transmission mode
After entering Trans mode, the LCD would show the current working mode.
User can move LEFT/RIGHT key and repress ENTER key to select and conrm.
2K and 8K are the options.
- 2K: when the device works as current mode, the number of current carrier
is 2048.
- 8K: when the device works as current mode, the number of current carrier
is 8192.
- Guard interval
In communications,guardintervalsareusedto ensure that distincttransmissions
do not interfere with one another. These transmissions may belong to dierent
operators (as in TDMA) or same operator (as in OFDM).
The purpose of the guard interval is to introduce immunity to propagation
delays, echoes and reections, to which digital data is normally very sensitive.
There are four possible options provided to be selected. They are 1/4, 1/8, 1/16,
1/32. User can shift the LEFT/RIGHT key to select and press ENTER to conrm.
- FEC
Forward Error Correction (FEC) rates include 1/2, 2/3, 3/4, 5/6, and 7/8. After
entering FEC submenu, and the LCD display would shows them, users just need
press LEFT and RIGHT button to choose, and press ENTER button for conrm.
- RF Frequency
The RF output frequency range is from 30 to 1000MHz with 1K stepping. After
entering the RF frequency setting submenu, users the can press LEFT, RIGHT,
UP, and DOWN buttons to adjust the frequency and conrm by press ENTER
button.
- RF out level
The RF attenuation range is from -30~-10dBm (81~97dBμV) with 0.1dB step.
After entering this setting submenu, user can shift UP/DOWN/LEFT/RIGHT key
to set the output level and press ENTER to conrm.
4) IP Output Setting
4.5 Gateway
4.6 Port
4.1 IP Output
4.2 Service IP
4.3 Output IP
4.4 Subnet Mask
4.5 Gateway
4.6 Port
4.1 IP Output
4.2 Service IP
4.3 Output IP
4.4 Subnet Mask
User can press “UP/DOWN” to choose this item. “Enter” and “LEFT/RIGHT” to
set the parameters.
If not set the following parameters will be no use, the IP Output will not work.
- IP Output
The IP Output option, must be enable.
- Service IP
The IP Output Port address. The format is xxx.xxx.xxx.xxx (like as 192.168.2.137).
- Output IP
The IP Output data receive address. The format is xxx.xxx.xxx.xxx (like as
224.2.2.2). After set the Output IP address , you must use the new address to
receive IP Output data.
- Subnet Mask
General is 255.255.255.0, it is must the same in a local area network.
- Gateway
If the device is in dierent net segment, you must set the gateway.
- Port
The UDP protocol port (like as 8001), you should use Output IP and new port to
receive IP Output data (like as udp://224.2.2.2:8001).
5) Network setting
After inter network setting, there are three Submenu Items for setting, just
show as the following LCD display pictures.
User can press “UP/DOWN” to choose this item. “Enter” and “LEFT/RIGHT” to
set the parameters.
Note: The MAC address is according to the factory setting, and it’s unique. The
display will respectively show as below:
6) Save cong
Users enter save cong submenu for saving settings. Choose yes for conrm set.
7) Loading cong
At this menu, user can press UP/DOWN key to select and repress ENTER to
conrm. User can restore the device into the last saved conguration by
choosing “7.1” and restore the device into factory conguration by choosing
“7.2” the display will show as below:
8) Version
User can check the hardware version and software version of this equipment
when enter this submenu.
1 Conf Entrada
2 Conf ASI
EncoderModulator
SW 5.13b HW 5.0

DVB-T Modulator
8
4. Encoders
Ref. 554801 – 1 A/V Input
12
(1) CVBS input (video input)
(2) Unbalanced audio input (left and right)
Ref. 554802 – 2 A/V Inputs
1 3
2 4
(1) CVBS input (video input) –Channel 1
(2) Unbalanced audio input (left and right) –Channel 1
(3) CVBS input (video input) –Channel 2
(4) Unbalanced audio input (left and right) –Channel 2
Ref. 554803 – 1 HDMI Input
12
(1) HDMI input –Channel 1
(2) HDMI input –Channel 2
Input resolutions: 1280x720p60, 1280x720p50, 1920x1080i60, 1920x1080i50,
1920x1080p60, 1920x1080p50
Note: Is only possible to obtain on the output the signal of one input at a time.
When both input have signal at the same time, the signal on the output is the
one of HDMI1(if HDMI input is set in automatic see chapter 5.2, otherwise the
output will be from the input selected).
4.1 Specication
Ref. 554801 554802 554803
Video Compression MPEG-2 SD MPEG-2 SD H264 HD
Audio Compression MPEG-2 SD MPEG-2 SD MPEG-2 SD
Encoding mode MPEG-2 / H264 / AVC SD / HD
Input port
Option 1
Port 1
One channel CVBS input
Unbalanced audio input
Port 2
One channel CVBS input
Unbalanced audio input
RF input
Option 2
Port 1
Two channel CVBS input
Unbalanced audio input
Port 2
Two channel CVBS input
Unbalanced audio input
RF input
Option 3
Port 1 One channel of HDMI input
Port 2 One channel of HDMI input
RF input
Option 4
Port 1
Two channel CVBS input
Unbalanced audio input
Port 2
One channel CVBS input
Unbalanced audio input
RF input
Option 5
Port 1 One channel of HDMI input
Port 2
Two channel CVBS input
Unbalanced audio input
RF input
Option 6
Port 1 One channel of HDMI input
Port 2
One channel CVBS input
Unbalanced audio input
RF input
IMPORTANT:
This equipment generates a delay of about 2 seconds between the signal at
inputs A/V and HDMI, and their corresponding outputs in RF and IP.
For this reason, the use of game consoles (eg PS3, XBox360 ...) as signal sources
is not recommended, because only watching movies is achieved, not being
able to really play.”

EN
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5. WEB NMS operation
User not only can use front buttons for setting conguration, but also can
control and set the conguration in computer by connect to web NMS
Port. User should ensure that the computer’s IP address is dierent from the
NDS3542’s IP address; otherwise, it would cause IP conict.
5.1 Login
A login interface will pop up rstly when user entered the IP address:
http://192.168.0.136 (or shown in 5.1 IP Address menu), the interface shows as
follow picture. Both of the default user name and password are admin.
User will face welcome interface after login, and all setting options are been
listed on the left side. And the main window at the right shows version
information and status information. (All the example pictures been showed
here just window captures pictures when the device connected in our test
room, status shows on the picture just for reference, they are not xed value).
5.2 Conguration setting
1) HDMI input setting
HDMI Input: Display which HDMI port is used (Only for HDMI Band Input).
H.264 Prole: user can set the H.264 Prole in this area, there are four possible
options provided to be selected: Automatic, High Prole, Main Prole and
Baseline Prole.
H.264 Level: user can set the H.264 Level in this area, there are twelve possible
options provided to be selected: Automatic, Level 1.2, Level 1.3, Level 2, Level
2.1, Level 2.2, Level 3, Level 3.1, Level 3.2, Level 4, Level 4.1 & Level 4.2.
Video bit rate: user can set the video bit rate in this area, the range is
1~19.5Mbps.
Audio bit rate: user can set the audio bit rate in this area, there are ve possible
options provided to be selected: 64kbps, 96kbps, 128kbps, 192kbps, 256kbps
and 320kbps. The default value is 128kbps.
Program name: it shows current program information. User can select and
type the program name to be played as needed.
PMT/Video/Audio/PCR PID: in this area, user can set program PIDs as needed,
usually system will automatically select the default values.
Encoding and video light: the light should show green colour normally
HDMI input: it shows if there is real-time HDMI signal inputting
Video format: the current video format of the device
Bit rate: the current encoding bit rate
2) 1 A/V input setting
Video Bit Rate: The range of values from 1.000 to 19.500 Mbps. For SD signal,
3.000 Mbps is ok, HD signal at least need 6.000 Mbps.
Audio Bit Rate: Audio encode bit rate conguration. You can select the
suitable audio bit rate from list.
Brightness: The range of values from 0 to 255 (Only for SD signal).
Contrast: The range of values from 0 to 255 (Only for SD signal).
Saturation: The range of values from 0 to 255 (Only for SD signal).
Hue: The range of values from -127 to 127 (Only for SD signal).
Aspect Ratio: User can set the Aspect ratio. There are 4 possible options to be
selected: 1:1, 4:3, 16:9 and 2.21:1.
Program Out Enable: Enables / Disables the program out.
Program Name: Only support character and number. The length can not over
32 byte
Service ID: Also called program number, it is must dierent from other
program. If you change it,you should modify the LCN.
PMT PID: Program Mapping Table PID
Video: Green is normal, red means signal input error, please check signal input
and video format.
Encoding: Green is normal, red means encoder is not work, please check
signal input and video format.
Norm: Display the video format of the input (Only for SD signal).
Video Format: Display the video format of the input (Only for HD signal).
Bit rate: Display the current encoder Bit rate.

DVB-T Modulator
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3) 2 A/V input setting
Video Bit Rate: The range of values from 1.000 to 19.500 Mbps. For SD signal,
3.000 Mbps is ok, HD signal at least need 6.000 Mbps.
Audio Bit Rate: Audio encode Bit rate conguration.You can select the suitable
audio Bit rate from list.
Brightness: The range of values from 0 to 255 (Only for SD signal).
Contrast: The range of values from 0 to 255 (Only for SD signal).
Saturation: The range of values from 0 to 255 (Only for SD signal).
Hue: The range of values from -127 to 127 (Only for SD signal).
Sharpness: There are 4 possible options to be selected: O, Smooth, Medium
and Sharp.
Aspect Ratio: User can set the Aspect ratio. There are 4 possible options to be
selected: 1:1, 4:3, 16:9 and 2.21:1.
Program Name: Only support character and number. The length can not over
32 byte.
Service ID: Also called program number, it is must dierent from other
program. If you change it, you should modify the LCN.
PMT PID: Program Mapping Table PID.
Video: Green is normal, red means signal input error, please check signal input
and video format.
Encoding: Green is normal, red means encoder is not work, please check
signal input and video format.
Norm: Display the video format of the input (Only for SD signal).
Video Format: Display the video format of the input (Only for HD signal).
Bit rate: Display the current encoder Bit rate.
4) NIT table setting
The location of the NIT is dened in the present document in compliance with
ISO/IEC 13818-1 [1] specication, but the data format is outside the scope of
ISO/IEC 13818-1 [1]. It is intended to provide information about the physical
network. The syntax and semantics of the NIT are dened in the present
document.
Network name: The name of current network, user can change it as he likes.
Network ID: This is a 16-bit eld which identies the terrestrial network that
supports the service indicated.
User can click “Add” to pop up a table, following is the interface:
Transport stream ID: This 16-bit eld which serves as a label identifying the TS
which contains the service, event or mosaic described by the cell.
Original network ID: This is also a 16-bit eld, a label which in conjunction with
the following elds uniquely identies a service, event or mosaic.
RF Frequency: user can set the RF frequency in this menu. The range is
30~960MHz with 1 KHz step.
Bandwidth: there are three possible options provided to be selected: 6M, 7M
and 8M.
Constellation: there also have three possible options to be selected: QPSK,
16QAM and 64QAM.
Hierarchy information: this option only adopts ISDB-T standard device.
Code rate: user can select the FEC value in the pull-down menu. There are ve
possible options provided to be chosen: 1/2, 2/3, 3/4, 5/6 and 7/8.
Guard interval: user can select the guard interval value in the pull-down
menu: 1/32, 1/16, 1/8 and 1/4.
Transmission mode: user can decide transmission mode 2k or 8k.
Service ID: unique identier of a service within a TS.
LCN: logical channel number.
Add: User can add a logical number in system by clicking “Add” menu and
typing the program information. The LCN can be added more than one by
re-clicking “Add”option. The interface shows as below:
Del: clicking “Del” to delete the added LCN information.
Save: clicking “Save” to save the current NIT parameters.
Cancel: clicking “Cancel” to exit the edit interface.
The display will show as below when user saved the NIT settings.
Update NIT: clicking to update the NIT tables in system.
Save NIT: clicking to save the settings.
Clear NIT: clicking to remove all the table have been inserted before.

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5) IP out setting
Follow the help guideline for set IP out conguration.
IP Output: The IP Output option, must be enable.
Service IP: The IP Output Port address. The format is xxx.xxx.xxx.xxx (like as
192.168.2.137).
Output IP: The IP Output data receive address. The format is xxx.xxx.xxx.xxx
(like as 224.2.2.2). After set the Output IP address , you must use the new
address to receive IP Output data.
Subnet Mask: General is 255.255.255.0, it is must the same in a local area
network.
Gateway: If the device is in dierent net segment, you must set the gateway.
Port: The UDP protocol port (like as 8001), you should use Output IP and new
port to receive IP Output data (like as udp://224.2.2.2:8001).
Note: The signal available at the IP Output is the same as the RF output.
The protocol used for the MUX stream is UDP, so to see the modulated
channels you need a program that has this protocol, like VLC Media Player.
In recent versions of this particular program is necessary to put @ before the
IP address, for example, “udp :/ / @ 224.2.2.2:1234”.
Important: Not all computers have the ability to view a service provided by a
554803.
6) Modulator setting
Bandwidth: there are three possible options provided to be selected: 6M, 7M
and 8M.
Constellation: there also have three possible options to be selected: QPSK,
16QAM and 64QAM.
FFT: user can set the FFT (transmission mode) by selecting in the pull-down
menu.
Guard interval: user can select the guard interval value in the pull-down
menu: 1/32, 1/16, 1/8 and 1/4.
FEC: user can select the FEC value in the pull-down menu. There are ve
possible options provided to be chosen: 1/2, 2/3, 3/4, 5/6 and 7/8.
RF frequency: the range is 30~1000MHz.
RF output level: the range is -30~-10dBm.
7) Save/Restore
8) Reboot
9) Firmware
This function is used to upgrade the device’s latest software program. If
user wants to update the device to latest version, he should contact with
manufacturer to get the latest version software. When upgrading it, user can
click the “ ” button to select the program needs burned into system.
Note: User should strictly follow the “Warning” information.

DVB-T Modulator
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10) Network
This interface indicates the default IP address and network mask of this device.
User can revise it and click“Apply” to conrm.
11) Password
User can revise the login password in this menu by type accordingly information
as required and click“Apply”to conrm.
6. Troubleshooting
Televés’ ISO9001 quality assurance system has been approved by CQC
organization. For guarantee the products’ quality, reliability and stability. All
Televés products have been passed the testing and inspection before ship out
factory.
The testing and inspection scheme already covers all the Optical, Electronic and
Mechanical criteria which have been published by Televés. To prevent potential
hazard, please strictly follow the operation conditions.
Prevention Measure
Installing the device at the place in which environment temperature between
0 to 45 °C
Making sure good ventilation for the heat-sink on the rear panel and other
heat-sink bores if necessary
Checking the input AC within the power supply working range and the
connection is correct before switching on device
Checking the RF output level varies within tolerant range if it is necessary
Checking all signal cables have been properly connected
Frequently switching on/o device is prohibited; the interval between every
switching on/o must greater than 10 seconds.
Conditions need to unplug power cord
Power cord or socket damaged.
Any liquid owed into device.
Any stu causes circuit short
Device in damp environment
Device was suered from physical damage
Longtime idle.
After switching on and restoring to factory setting, device still cannot work
properly.
Maintenance needed
7. Application
7.1 Ordering guideline
Our design is individual module, for this series device the encoding module
including three version for optional:
MPEG2 SD encoding with 1 CVBS module
MPEG2 SD super encoding with 2 CVBS module
MPEG4 AVC H.264 encoding with 1 HDMI module
Modulation module including one version for optional:
DVB-T COFDM RF out module

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DVD
HDMI
Source
CVBS
Source
Monitor
and / or
Channel
injection
Network
Wireless router
Eventual
roof antenna
IP (optional)
Antenna
Wall socket
Camera
TV
TV
TV
TV
Advertisement
System
Blue DVD
Hard Disk Sender
Pay Channel STB
IRD STB
7.2 Application example
7.3 Conguration example for more than one unit in the same installation
Unit 1
Unit 2

DVB-T Modulator
14
7.3.1 NIT Conguration
In this menu is possible to edit the Transport Stream ID, Original Network ID
(each unit has to have a dierent TSID and ONID), assign a Network name (the
same in all units of the same network) and more. After each change is necessary
to press Update NIT.
By pressing “Add” you will have access to the menu of the next images:
7.3.2 NIT, Hierarchy and LCN Conguration
In this menu is possible to edit the LCN of each program (in order to be listed
correctly the Hierarchy Information must be set to“a-1, a-2 or a-4”, the same on
each unit of the same network).
The LCN can be set by any order, in the image above it can be observed that the
unit 2 will have program 1, 3 and 4 and unit 1 will have program 2.
After pressing “save” on the previous menu, is necessary to press “Update NIT”
again, and then in the “Save/Restore” menu press “Save cong”.

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7.3.3 List Aspect on TV/Receiver
List aspect with LCN
List aspect without LCN
On these two images it can be seen the two possible ways to list the programs:
• With LCN – the programs are listed in order according with the LCN
conguration set above.
• Without LCN – the programs list will depend on the TV/STB and it can be based
on:
- Alphabetic order
- MUX frequency
- First the HD programs, listed based on the MUX frequency
- Then the SD programs, listed based on the MUX frequency

DVB-T Modulator
16

EN
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DVB-T Modulator
18

EN
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564501_564601_003_EN
televes.com
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