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TBS8112 DVB-S/S2/S2X to DVB-T
TRANS-MODULATOR
User Manual
Copyright © TBS Technologies 2009-2022 All Rights Reserved
TBS Technologies International Ltd.
http://www.tbsiptv.com | http://www.tbsdtv.com
sales@tbsdtv.com | support@tbsiptv.com | support@tbsdtv.com
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SAFETY NOTES
Read the user’s manual before using the equipment, mainly "SAFETY RULES" paragraph.
The symbol on the equipment means "SEE USER’S MANUAL". In this manual may also appear as a Caution
or Warning symbol.
WARNING AND CAUTION statements may appear in this manual to avoid injury hazard or damage to this
product or other property.
USER'S MANUAL VERSION
Version
Date
1.0
March 2022
SAFETY REQUIREMENTS
* The security can be compromised if not applied the instructions in this manual.
* Use this instrument under the specified environmental conditions.
* The user is not allowed to perform changes inside the equipment.
Any change on the equipment must be done exclusively by specialized staff.
* Do not obstruct the ventilation system of the equipment.
* Use appropriate low-level radiation cables for input / output signals, especially on high level signals.
* Follow the cleaning instructions described in the Maintenance paragraph.
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Catalog
1. Product Introduction ........................................................................................................................................... 4
1.1 Overview .................................................................................................................................................... 4
1.2 Specification ............................................................................................................................................... 5
2. System Connection and Log in ............................................................................................................................. 6
3. Network setting ................................................................................................................................................... 7
4. Input source setting ............................................................................................................................................. 7
4.1 DVB-S/S2/S2X input setting ....................................................................................................................... 7
4.2 Network TS input setting ........................................................................................................................... 8
4.3 Local file input setting ................................................................................................................................ 9
4.4 LCNs ........................................................................................................................................................... 9
5. REMUX Channels and Generate to DVB-T Signal ............................................................................................... 10
5.1 Select and REMUX the channels .............................................................................................................. 10
5.2 DVB-C output setting ............................................................................................................................... 10
6. Maintenance ...................................................................................................................................................... 11
6.1 Instructions for returning by mail ............................................................................................................ 11
6.2 Cleaning Recommendations .................................................................................................................... 11
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1. Product Introduction
1.1 Overview
TBS8112 is a compact trans-modulation device that is used to convert free DVB-S/S2/S2X satellite TV
channels to DVB-T (Digital Terrestrial Television) format. It supports to receive free satellite channels from 4
frequencies via 4 RF port, and output DVB-T channels in 4 frequencies.
To meet customers’ various requirements, TBS8112 DVB-S/S2/S2X to DVB-T trans-modulator also support IP
streams input and local video file storage. With “Remux” technology, you can randomly select required
channels from input streams or local video files, then multiplexed to a new TS stream and output in 4 DVB-T
Frequencies.
TBS8112 DVB-S/S2/S2X to DVB-T trans-modulator supports NMS system, can be controlled and configured via
Ethernet using a standard browser.
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1.2 Specification
4 Frequencies DVB-S/S2/S2X satellite input
Frequency range
950-2150 MHz
Standard
DVB-S/S2
DVB-S2X
code rate
QPSK: 1/2, 3/5, 2/3, 3/4, 4/5, 5/6,
8/9, 9/10
QPSK: 1/4,1/3, 2/5 (S2-MODCODs), 1/2,
3/5, 2/3, 3/4, 4/5, 5/6, 8/9, 9/10
(S2-MODCODs), 11/45, 4/15, 14/45,
7/15 8/15, 32/45
8PSK: 3/5, 2/3, 3/4, 5/6, 8/9, 9/10
8PSK (8APSK-L): 3/5, 2/3, 3/4, 5/6, 8/9
(S2-MODCODs), 7/15, 8/15, 26/45,
32/45
16APSK: 2/3, 3/4, 4/5, 5/6, 8/9, 9/10
16APSK: 2/3, 3/4, 4/5, 5/6, 8/9
(S2-MODCODs), 7/15, 8/15, 26/45, 3/5,
32/45
32APSK: 3/4, 4/5, 5/6, 8/9, 9/10
32APSK (32APSK-L): 3/4, 4/5, 5/6, 8/9,
9/10(S2-MODCODs), 32/45, 11/15, 7/9
Symbol rate
1 ~ 45Msymb/s
Input power range
–70 to –20 dBm typ., –50 dBm nominal, –5 dBm max
Input Impedance
75 Ω
Input return loss
> 10 dB
Noise figure
14 dB maximum
4 Frequencies DVB-T output
Frequency range
47 MHz - 858 MHz
Output level
–20 dBm ± 1 dB, 50 ohms
Modulation DVB-T
QPSK, QAM16, QAM64
Channel bandwidth
7/8 MHz
Guard interval
1/4, 1/8, 1/16, 1/32
Code rate
1/2, 2/3, 3/4, 5/6, 7/8
Trans-modulation process
TS REMUX
Select arbitrary number of services from the received DVB-S/S2/S2X TS,
REMUX and convert to DVB-T TS
User-defined NID, ONID, Network Name
Remote control
1000 Mbps Ethernet connector to access a webserver
User-defined IP address
OS and Driver
Linux 11 (bullseye)
Working Environment
Operating temperature: 0 to 40 deg C
Storage temperature: –20 to 70 deg C
Relative Humidity: 5% to 90% non-condensing
Dimensions(chassis)
313*220*48 mm
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2. System Connection and Log in
➢ The default IP for TBS8112 DVB-S/S2/S2X to DVB-T trans-modulator is 192.168.8.101:8081.
➢ In first place, check the IP address of the PC. It must be in the same IP range of the device. This means, an
IP like 192.168.8.xxx (xxx can be 0 to 255 except 101 to avoid conflict with module IP address). Add a new
IP or change the current one to meet this requirement.
➢ Check connections. The Ethernet cable must be connected to the LAN port (see description chapter). It is
recommended to try a ping on the command-line interface to confirm they are on the same network
range and communication between them is possible.
➢ Now use a web browser to run the webserver application from the PC. Write the IP address (by default
192.168.8.101) on the URL bar and press ENTER.
➢ If connection is successful, the browser will display a login screen (see description chapter). Enter the
Username and Password (by default both are “root”) then click on ‘Login’ to enter the webserver
application.
NOTE: After communication is established, the user can set a new User name and Password.
The default ID: root
The default password: root
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3. Network setting
In the network setting page, users can enable the DHCP.
Users can change the network parameters for trans-modulator in this page, too.
4. Input source setting
4.1 DVB-S/S2/S2X input setting
1. Adapters: Choose TBS6909se DVB-S/S2/S2X adapter 0-3 (tuner).
2. Delivery Systems: Choose DVB-S, DVB-S2 or DVB-S2X here. (Depending on the signal standard that your
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channels belong to)
3. Frequency (kHz): Enter the transponder’s frequency value here.
4. Symbol Rate (Sym/s): Enter the signal’s symbol rate value here.
5. Polarisation: Choose V or H, according to the signal’s condition.
6. Modulation: Choose the signal’s Modulation here.
7. FEC: Choose the signal’s FEC value here.
8. Click “Scan Channels” to lock the signal and scan channels.
9. If you need to check the parameter of the satellite transponder, you can visit the website:
https://www.lyngsat.com/
4.2 Network TS input setting
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1. TBS8112 support to catch network streams in HTTP, UDP, RTP protocol.
2. Enter the URL of the streams and click “Apply” to catch the network TS.
4.3 Local file input setting
1. TBS8112 trans-modulator supports to convert local SPTS file into DVB-T signal.
2. The Local SPTS file should be:
Video format: MPEG-1 MPEG-2 MPEG-4 H264 H.265
Audio format: MPEG-1 MPEG-2 AAC_ADTS AAC_LATM A52 (aka AC3)
3. The SPTS file should be stored in “/usr/local/tbs/video”, so that the system can detect the file.
4.4 LCNs
LCN: Logical channel number is the number that specifies the index to sort services on the digital
terrestrial television receiver.
By default, the system numbers all the channels automatically.
If the users want to number the channels manually, please email to support@tbsdtv.com or
support@tbsiptv.com.
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5. REMUX Channels and Generate to DVB-T Signal
5.1 Select and REMUX the channels
1. Available Items: The “enable” channels from input source are all show here.
2. Click or and move the selected channels for DVB-T generation.
3. TBS8112 Trans-modulator has 4 DVB-T mod (0-4) for DVB-T channels output.
5.2 DVB-C output setting
1. Network ID: It is the number that identifies the network where the signal is distributed. Enter any
value from (0-65535).
2. Original Network ID: It is a number that identifies the network from where the signal comes. Enter any
value from (0-65535).
3. Transport Stream ID: It is a number that identifies a specific transport stream. Enter any value from
(0-65535).
4. Network Name: It is the name that identifies the network where the signal is distributed.
5. Provider Name: It is the name that identifies the provider of the signal.
6. Output Bitrate: Enter any value from (10-31M) according to your system requirements.
7. Frequency: Enter Frequency value for DVB-T output.
8. Bandwidth: Enter Bandwidth value for DVB-T output.
9. Modulation: Enter Modulation value for DVB-T output.
10. Transmission: Enter Transmission value for DVB-T output.
11. Guard Interval: Enter Guard Interval value for DVB-T output.
12. FEC: Enter FEC value for DVB-T output.
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6. Maintenance
6.1 Instructions for returning by mail
➢ Instruments returned for repair or calibration, either within or out of the warranty period, should be
sent with the following information: Name of the Company, name of the contact person, address,
telephone number, receipt (in the case of coverage under warranty) and a description of the problem or
the service required.
➢ Mail: support@tbsdtv.com or suppor[email protected].
6.2 Cleaning Recommendations
➢ CAUTION: To clean the cover, take care the instrument is disconnected.
➢ CAUTION: Do not use scented hydrocarbons or chlorized solvents. The cover should be cleaned by
means of a light solution of detergent and water applied with a soft cloth. Dry thoroughly before using the
system again.
➢ CAUTION: Do not use for the cleaning alcohol or its derivatives, these products can attack the
mechanical properties of the materials and diminish their useful time of life.
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