Lemco micro line MLF-100 User manual

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1. IMPORTANT SAFETY PRECAUTIONS INFORMATION
READ THE FOLLOWING WARNINGS BEFORE YOU USE YOUR DEVICE
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Power supply / Mains cord
zx w Operate the unit only within the voltage range defined as appropriate by the man-
ufacturer.
zx w Occasionally check the power connector and remove dirt or dust that may have
accumulated.
zx w Use only the mains cord that comes with your unit.
zx w Do not operate the unit or plug in the mains cord if it is broken, split, or damaged
in any way.
zx w Do not place the mains cord next to heating devices. Do not pull it, place heavy
objects on it or damage it in any way. Keep it out of reach of children.
zx w Ensure that the device is plugged in a properly grounded socket. Insufficient
grounding may cause electrocution.
zx w Always carefully disconnect all plugs by pulling on the plug and not on the cord.
Make sure the unit's power switch is turned off before removing the cord from an
outlet.
zx w Disconnect the mains cord when the unit is not in use for long periods of time or
during storms.
zx w Do not connect the unit to a multiple-outlet to avoid plug overheating.
Disassembling
zx w This unit contains parts that cannot be repaired by the user. Do not disassemble
or try to repair it as this will void all warranties. Please contact the manufacturer if
you experience any problems with your unit.
Water/humidity
zx w Do not keep the unit in a humid place or near water.
zx w Do not plug/unplug the unit with wet hands.
WARNING
The following safety precautions must be observed to prevent fire
or electric shock hazard. Safety precautions include but are not re-
stricted to the following:

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Fire
zx w Never place a candle or another source of fire on the unit as it may fall and start
a fire.
zx w If the mains cord or the power connector is damaged or destroyed, or if there is a
sudden loss of picture during operation, or if you notice a strange smell or there is
smoke, immediately switch the unit off, disconnect the mains cord and contact the
manufacturer’s technical support department.
Installation / Storage
zx w This unit contains high precision pieces of electronics. To ensure optimal perform-
ance and avoid damage, do not store it in any location where it may collect dirt,
duct, lint, etc. Do not expose it to extreme heat or cold (e.g. in direct sunlight, near
a heater or in the car during the day). Place the unit in a secure place to avoid falls.
zx w Before moving the unit, always unplug all cords first.
zx w When installing the unit, make sure that an outlet is within easy reach. In case of
malfunction, switch the unit off and unplug the power cord. When the unit is not in
use for a long period of time, make sure that the mains cord is disconnected.
Connectivity
zx w Before connecting the unit to other electronic devices, always switch off and unplug
all devices.
Maintenance
zx w Do not spill liquids on the unit. Do not use any diluents or volatile liquid to clean
the unit. Instead, use a soft slightly damp cloth and allow the unit to dry completely
before using again.
Handling
zx w Do not poke your finger into the openings on your unit.
zx w Never put paper, metal parts or other objects into the openings of your unit. If you
suspect that there are foreign parts in your unit, switch it off and unplug the mains
cord. Contact the manufacturer’s technical support department.
zx w Do not step on or place heavy objects on top of the unit. To avoid hardware dam-
age, handle all buttons, connectors and switches gently.

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2. INTRO
Congratulations on purchasing the MLF-100. You now own a high quality, professional
DTV headend. To get the most out of your purchase, please take the time to carefully
read through this manual.
3. INSTRUCTIONS
3.1 - Description
The MLF-100 is a very powerful, all-in-one device, able to receive up to 4 independent
satellite (DVB-S/S2), terrestrial (DVB-T/T2) or cable (DVB-C) signals and convert them
in 4 x DVB-T/C RF output channels. It supports “pool” technology, meaning that the
user is able to select any program from any of the 4 inputs and assign it to any of the
4 RF providing great flexibility.
The embedded web server of the MLF-100 provides a very friendly user interface as
well as the ability of remote or local control of the device via Ethernet.
Its small size and its powerful features renders the MLF-100 the ideal solution in cases
we want to distribute FTA (Free-To-Air) TV programs coming from satellite (DVB-S/S2),
terrestrial (DVB-T/T2) or cable (DVB-C) sources to a CATV installation using the DVB-
T/C technology.
3.2 - Features
zx w 4 x independent multi-standard inputs DVB-S/S2/T/T2/C
zx w 4 x RF output DVB-T/C (software selectable)
zx w “Pool” technology
zx w MER value > 42dB
zx w Dual power supplies offering redundancy mode
zx w PID Filtering
zx w Custom NIT/SDT
zx w Local or remote control via webserver
zx w Very friendly user interface
zx w Wall or rack mount options
zx w SNMP v2
zx w Ultra-compact size
zx w 5year warranty
3.2.1 - Auto-reset functions and watchdog
During the normal operation of the MLF-100, the main CPU monitors all the internal
parts in order to ensure that the device works normally. In case of an internal error or
module failure, the MLF-100 immediately initiates the recovery procedure by resetting
the appropriate module or the device. Finally, watchdog timers ensure that the device
will be reset in case of CPU failure.

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3.2.2 - “Pool” technology
The MLF-100 supports “pool” technology, meaning that the user is able to select any
TV or Radio program from any input and assign it to any of the 4 outputs providing
great flexibility.
3.2.3 - DVB-T or DVB-C compliant
The user is able to software select the modulation standard, between DVB-T and DVB-
C, of the MLF-100 without the need of any firmware upgrade.
3.2.4 – Custom NIT/SDT
Using the MLF-100 the user is able to create custom NIT and SDT tables according to
his needs.
3.2.5 – Dual power supplies
The MLF-100 is powered from one or two external power supplies of +12VDC/2.5A. In
case we connect two external power supplies then they will work in redundancy mode.
Thus, in case of failure of one of the two external power supplies the device will con-
tinue working without stoping.
3.3 – Block Diagram
S2
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S
DVB-
S/
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T/
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T2
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C
S2
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S
DVB-
S/
/
T/
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T2
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C
S2
/T
S
DVB-
S/
/
T/
/
T2
/
C
10-MLF VB 04 x B C
/
T/
-
T
S2
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S
DVB-
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T/
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T2
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C

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3.4 - Product drawing views
1 2
3
5
4
1. RF out
2. LAN control port
3. RF inputs
4. Power supply inputs
5. Fan cooler

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4. INSTALLATION
4.1 - General
The MLF-100 has a very friendly interface for programming and monitoring purposes.
The user is able to gain access to the embedded webserver, by opening an Internet
browser (e.g. Internet Explorer, Firefox or Chrome) and type the following static IP:
192.168.1.205.
The default username and password are the following:
Username: admin
Password: 12345
4.2 - Embedded Webserver
Status
4.2.1 - “General” page
Every time that the user is connected to the device, the “General” page (Figure No 1) is
loaded providing a current general status information of the device.
Status - Inputs 1…4
In these fields, the user is able to see the status of each tuner e.g. If it is locked / un-
locked or disabled, the working mode eg. DVB-S/S2, DVB-T/T2 or DVB-C etc.
Figure No 1

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Outputs – Modulator 1…4
In these fields, the user is able to see the status of all the RF outputs of the device such
as modulator’s state, RF output frequencies and modulation settings.
System
This section provides general information of the device, like internal status of all device’s mod-
ules, CPU temperature and fan state as well as error codes for troubleshooting purposes.
4.2.2 - “Program list” page
In “Program list” page (Figure No 2) the MLF-100 provides information of all programs
that are currently being distributed via its four RF outputs.
At the same time, the device offers the whole channel list to be exported under the
follow file types:
zx w Excel – All the program list is exported in .xlsx format
zx w CSV – All the program list is exported in .csv format
zx w M3U – All the program list is exported in .m3u
4.2.3 - “Block diagram” page
The “Block diagram” page (Figure No 3) provides a general view of device’s internal
modules and architecture.
Figure No 2

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Figure No3
Figure No 4
All icons are clickable providing the ability to the user to go directly to the setup
page of all internal modules of the device. The grey icons mean that the current
module is disabled.
Setup
4.2.4 - “Input” page
In the “Input” page (Figure No 4) the user is able to select the working mode for each
input.

There are four tabs, one for each input. The user is able to select the working mode of
each input as follows:
For Satellite signal reception the user must select DVB-S/S2 mode:
1. Tuner Enabled/Disabled - Enable or disable the specific tuner
2. SAT or IF frequency – Select how to insert the SAT frequency
3. Symbol rate – Insert the symbol rate
4. LNB voltage – Select the LNB voltage (13V,18V,OFF)
5. Band – Select the appropriate SAT band (works only if IF frequency is selected as
input method)
6. DiSEqC – Select DiSEqC A, B, C, D
For Terrestrial signal reception the user must select DVB-T/T2 mode:
1. Tuner Enabled/Disabled - Enable or disable the specific tuner
2. Frequency – Insert the input frequency or
3. Channel – Instead of frequency your can add the channel number
4. Bandwidth – Insert the input channel bandwidth
For DVB-C mode:
1. Tuner Enabled/Disabled - Enable or disable the specific tuner
2. Frequency – Insert the input frequency
3. Symbol rate – Insert the symbol rate
4. Constellation – Insert constellation
Once all settings are being written for both tuners, the user must click the “Apply” but-
ton to begin the lock process.
Tuner status
For each input the MLF-100 provides several information such as tuner status
(Locked/Unlocked), total bitrate, signal strength, quality etc.
4.2.5 - “Program Selection” page
In the “Program Selection” page (Figure No 5) the user is able to select any program
from any input and assign it to any output using the “pool” technology.
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Figure No 5
There are 4 tabs, one for each input. Each tab depicts all the TV and Radio programs from the input
that has being selected during the “Input page” processes.
When the user selects one input, the device’s multiplexer does a real time analysis and depicts the
program list from this specific input. For each program the MLF-100 provides the following infor-
mation/options:
zx w Original Program Title – which is the name of the program
zx w Program Title – The ability to enter a custom name for this specific program
zx w Original Service ID – which is the original Service ID number of the program
zx w LCN No – which is the logic channel number of the program
zx w Bandwidth – which is the bitrate of the program in Kbps
zx w Encrypted – which depicts if the program is encrypted or not
zx w Output – To select in which the program must be assinged
zx w Output Service ID – The user is able to provide custom Service ID number
Each program title has a small cross at the left which can be expanded if the user will click on it.
During this procedure, all the available PIDs of this specific program are reveled (Figure No 6). In this
case, the user is able to select/deselect which PID want to be outputted.

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Figure No 6
Figure No 7
Using the Drop-down menu from “Output” column (Figure No 7) the user is able to as-
sign any program to any of the four outputs. By doing the same process for each pro-
gram, from all inputs the user is able to create his own 4 custom multiplex in the output.

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Figure No 8
The status section in (Figure No 8) provides a general idea to the user of the current payload (according
to the selected programs) comparing it to the max. output payload.
It is recommended that the user must not exceed the 85% from each output, since all the bitrate are
variable according to their specific content.
Peak Detection mechanismm
As shown in Figure No 8 there is a colored indicator of the peak detection mechanism, for each output
transport stream. This indicates if any overflow has occurred on modulator’s output bitrate with the
following colors:
zx w Green – No overflow occurred
zx w Yellow – No overflow occurred but the input bitrate is close to the output bitrate
zx w Red – Overflow occurred. The user must decrease the input bitrate
Caution!
The number of programs that the MLF-100 is able to distribute de-
pends on the resolution (SD, HD, 4K etc.), the compression (MPEG2,
H.264 etc…) and in general from the total bitrate of each program.
For example, if we select the following DVB-T setting for the four mod-
ulators on MLF-100 outputs:
zx w Constellation: 64 QAM
zx w Guard Interval: 1/32
zx w Code rate: 7/8
zx w Bandwidth: 8 MHz
According to Appendix A we will have a total output bitrate of
31.67Mbps/ modulator. That means that we can select as many pro-
grams as the user wants but their total bitrate must not exceed the
31.67Mbps, otherwise artifacts may occur.

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4.2.6 - “RF Output” page
In the “RF Output” page (Figure No 9) the user is able to setup the RF output settings
of the MLF-100.
Figure No 9
With the use of the radio buttons the user is able to select the mode that the MLF-100 will operate as
follows:
DVB-T: 4 x modulator working in DVB-T standard
DVB-C: 4 x modulator working in DVB-C standard
For each modulator in DVB-T mode the user is able to setup the following parameters:
zx w Frequency – The output frequency of the first modulator*
zx w Constellation – The constellation of the first modulator*
zx w Code Rate – The coder rate of the first modulator*
zx w Guard Interval - The guard interval of the first modulator*
zx w Channel Bandwidth – The channel bandwidth of the first modulator*
zx w Modulation – The modulation type of the first modulator*
zx w Enable/Disable – Enable or disable the current modulator
zx w Output level – Adjust the output level for each modulator from 70-90dΒμV.

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* All the four outputs of the MLF-100 operate in adjacent RF output channels. This means
that the user setups only the first modulator and all the other three modulators have the
same settings and automatically are being programmed in adjacent channels.
E.g. If the user sets the CH21 in UHF band on modulator No1 the other three modulators
will be automatically set to CH22, CH23 and CH24, respectively.
The status section in (Figure No 10) provides a general idea to the user of the current
payload (according to the selected programs) comparing to the max. output payload.
It is recommended that the user must not exceed the 85% from each output, since all
the bitrate are variable according to their specific content.
4.2.7 - “TS settings” page
In this section (Figure 11), the user is able to setup all the TS settings of the four multi-
plex in MLF-100’s output.
Figure No 10
Figure No 11

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For more information on how to create a custom NIT table please refer to “Lemco NIT
creation guidelines.pdf” document in Lemco’s website.
For each multiplex output the user can setup the following settings:
TS ID: Which is the ID No of the specific multiplex (1…65535)
Net ID: Which is the Net ID No of the specific multiplex (1…65535)
Original Net ID: Which is the Org. Net ID No of the specific multiplex (1…65535)
Network Name: Which is the network name of the specific multiplex
NIT: Choose from Global, Basic, Default and Custom
LCN provider: Choose the appropriate LCN provider (EACEM, ITC, Nordig, APN)
4.2.8 - “NIT” page
In this section (Figure 12), the user is able to create custom NIT table for each of the
four outputs of the device. Moreover, this section offers the ability to export / import
a NIT table..
Figure No 12

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4.2.9 - “SDT” page
In this section (Figure 13), the user is able to create custom SDT table for each of the
four outputs of the device. Moreover, this section offers the ability to export / import
a SDT table.
For more information on how to create a custom SDT table please refer to “Lemco
SDT creation guidelines.pdf” document in Lemco’s website.
System
4.2.10 - “Event log” page
In “Event log” page (Figure No 14) the system logs all the events occurs in the device
during its operation. These logs are divided in three different categories based on their
priority as follow:
High Using the red color the system logs the events which are of high priority.
Medium Using the orange color the system logs the events which are of medium
priority.
Low Using the red color the system logs the events which are of low priority.
Figure No 13

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The user has the ability to select which kind of events to display as well as the device
gives the opportunity to export these logs as follow:
zx w Excel – All the program list is exported in .xlsx format
zx w CSV – All the program list is exported in .csv format
4.2.11 - “LAN” page
In “LAN” page (Figure No 15) the user is able to setup all the parameters of the LAN con-
trol of the device as follows:
Figure No 14
Figure No 15

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zx w DHCP – Enable or disable DHCP
zx w IP address: Set a static IP address for controlling the device
zx w Subnet mask: Set the specific Subnet mask
zx w Gateway: Set the gateway’s IP address
zx w Primary DNS: Set the IP address of the primary DNS
zx w Secondary DNS: Set the IP address of the secondary DNS
zx w Port: Assign the control port
zx w MAC address: Depicts the MAC address of the LAN control
4.2.12 - “Administration” page
In “Administration” section (Figure No 16) the user is able to change the default password
of the webserver.
Figure No 16
Caution!
In case of factory default procedure, the username and password
will be reset unless we select the check box “Keep username &
password after applying factory defaults”.

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4.2.13 - “System restart” page
In “System restart” section (Figure No 17) the user is able to apply a full reset to the device.
Figure No 17
Figure No 18
4.2.14 - “Factory default” page
In “Factory default” section (Figure No 18) the user is able to apply a factory default reset
either as DVB-T or DVB-C.