SAT IF distribution system
SAT IF distribution system
SAT IF converters cs420, cs440
Product description
The cs420, cs440 are SAT IF converters (in text - module) intended to convert frequency of SAT IF channels coming from
different satellites or polarizations to necessary SAT IF channel in frequency range from 950 MHz to 2150 MHz.
The cs420 converts two digital channels according to DVB-S and DVB-S2 standards.
The cs440 converts four digital channels according to DVB-S and DVB-S2 standards.
The modules are provided for powering LNB via connector [1].
The modules are controlled using TERRA BUS+ protocol.
The modules have been designed in accordance with standard EN50083-5 class 2.
The modules are intended for indoor use only.
These units are RoHS compliant.
Safety instructions
Installation of the converter must be made in accordance with EN 60728-11 and local safety standards.
Any repairs must be made by qualified personnel.
When amplifier is disconnected, LED display will not illuminate.
Do not expose this converter to moisture or splashing water and make sure no objects filled with liquids, such as vases,
are placed near or on the unit.
Avoid placing the converter next to heat sources such as central heating components or in areas of high humidity.
Keep the converter away from naked flames.
If the converter has been kept in cold conditions for a long time, bringing it into a warm environment may cause condensation,
so allow it to warm up for no less than 2 hours before plugging into the mains.
Ventilation should not be impeded by covering the ventilation openings with items, such as newspapers, table-cloths,
curtains etc.
Mount the converter in a vertical position only to allow the free flow of air through the unit. If installing in a 19” rack system
additional forced air cooling fans may be required (see Table 2 - operating temperature range).
Always allow 10 cm of free space from the top, front and bottom of the unit to enable any heat to be dissipated.
This product complies with the relevant clauses of the European Directive 2002/96/EC. The unit must be recycled or
discarded according to applicable local and national regulations.
External view
1 - ◄ - RF input of SAT IF signal (F socket), DC output for LNB
2 - ►- RF output (input signal loop-through) (F socket)
3 - ADDR. - indicator of addressing
4 - ST. - indicator of the module‘s status
5 - group number setting
6 - module number in group setting
7 - ◄ - RF input (output signal loop-through) (F socket)
8 - ► - RF output (F socket)
9 - data bus connector (under the cover)
10 - power distribution bus connector (under the cover)
11 - +12 V powering input (screw terminal)
Figure 1. External view and diagram
Installation instructions
Draugystes str. 22, LT-51256 Kaunas, Lithuania, tel.: +370 37 - 31 34 44, fax: +370 37 - 31 35 55
Read the safety instruction first.
All settings can be made using TERRA BUS+ supported control units.
Disconnect power supply unit from the mains before make all connections of the modules.
Fasten the module on DIN RAIL or individual holder.
Connect all necessary RF, powering and control cables.
Connect the 75 Ω load to the unused F sockets.
Set Group number and Module number with [5], [6]. It is possible to set groups from 1 to 4 and module numbers from 1
to 16 in each group. Total up to 64 modules.
Addresses of modules must be different.
Connect power supply in to mains.
Within 5-20 seconds of powering the module it will run in normal operation mode.
Comments of the front panel indicators:
if the module addressed – the address indicator [3] glows green;
if the internal diagnostic system has not detected the failure - the status indicator [4] glows green;
if the internal diagnostic system has detected the failure - the status indicator [4] glows red.
1. RF output is switched off in all delivered modules as a default.
2. Bandwidth is set to 6 MHz as a default.
3. The RF output level of the module should be set after 0.5 hour of warm-up. The difference between RF channel
levels should not exceed ±2 dB.
Mounting on a wall by screws
Mounting on a bracket (supplied)
Technical specifications
frequency range
950-2150 MHz by 1 MHz step
6-60 MHz by 1 MHz step
level pr.
maximum level difference between input signals
50...85 dBµV
25 dB
> 10 dB/75 Ω
return loss/impedance
LNB powering/control pr.
noise figure
loop through frequency range
0 V/13 V/18 V/13 V 22 kHz/18 V 22 kHz 400 mA max.
< 9 dB
950-2150 MHz
loop through loss
RF output frequency range
level output level adjustment pr.
range per section
90 ± 2 dBµV
return loss/impedance
> 10 dB/75 Ω
spurious in band
loop through frequency range
loop through loss
Current consumption without external DC load
Parallel to the wall
RF input
< 1.5 dB
950-2150 MHz by 1 MHz step
0 ÷ -15 dB
< - 35 dB
5-2150 MHz
< 1 dB
Supply voltage
Perpendicular to the wall
12 ± 1 V
0.32 A
0.52 A
Operating temperature range
0o ÷ +45o C
Dimensions/Weight (packed)
198x107.5x36 mm/0.85 kg
pr. software control
Figure 2. Mounting of amplifier
Mounting on DIN rail
Figure 3. Mounting to DIN rail
Diagnostic information
"Tuner 1 unlocked"
"Tuner 2 unlocked"
"Tuner 3 unlocked"
"Modulator 4 unlocked"
"Tuner 1 no ACK
"Tuner 2 no ACK
"Tuner 3 no ACK
"Tuner 4 no ACK
"LNB power overloaded
"Modulator 1 no ACK"
"Modulator 2 no ACK"
"Modulator 3 no ACK"
"Modulator 4 no ACK"
I2C bus error
High internal temperature
Temperature sensor fail
EEPROM: initialized with def. values
"Tuner 1 input level too low
"Tuner 2 input level too low
"Tuner 3 input level too low
"Tuner 4 input level too low
"Tuner 1 input level too high
"Tuner 2 input level too high
"Tuner 3 input level too high
"Tuner 4 input level too high
reset device, if the message appears again, contact service
LNB powering exceed 0.4 A, check RF input cable and LNB
reset device, if the message appears again, contact service
module is damaged, contact service
high internal temperature, ensure better cooling conditions
module is damaged, contact service
reset device, if the message appears again, contact service
input level < 50 dBµV, verify installation and input level
Figure 4. Mounting from DIN rail
Figure 5. Mounting or removing to/from
DIN rail of plastic spacers (supplied).
Connection of cables
input level > 85 dBµV, reduce input level (recommended)
The diagnostic information are updated constantly.
Figure 6. Powering of converter
Default settings
The modules are supplied with the following default settings:
Group number
Module number
Input frequency 950 MHz
Input bandwidth
6 MHz
Output frequency
950 MHz
Output RF
Output ATT
0 dB
LNB voltage
LNB voltage + 1V
Start menu
The following parameters of the module can be changed by control unit:
1) Input frequency 2) Input bandwidth
3) Output frequency
4) Output RF
5) Output ATT
6) LNB voltage
7) LNB voltage + 1 V
input channel (transponder) frequency
input channel bandwidth
output channel frequency
output signal ON / OFF
adjusting output signal level
LNB powering and switching
increasing LNB powewring voltage for long cables
Module menu
Section 1
Control using UPC411 or UC411
Input frequency
1. Within 5-20 seconds after power supply connect in to mains the modules will run in normal operation mode and control
unit collects information from all modules connecting to it.
Attention! If the module cannot determine Module No - the address indicator 1 is blinking.
The image on the screen will appear like shown in Figure 7.
Meanings of each sign are:
Input bandwidth
Output frequency
Modules with address:
Output RF
Group number 1, Modules numbers from 1 to 16
Group number 2, Modules numbers from 1 to 5
Group number 3, Modules number 1
Group number 4, Modules number 1, 12, 16
Output ATT
Section 2
Device title
Module number 1
Group number 1
Same as in section 1
Section 3
Figure 7. Start menu
Same as in section 1
2. Select neccessary module by pressing a joystick on UPC411 or UC411 up/down/right/left. Selected module address
indicator glowes green.
Press “ENT” button to enter to module menu.
3. Control menu tree is shown in Figure 7.
4. Use joystick up/down/righ/left to surf the menu.
5. SAT IF frequency calculation.
LNB Voltage
Polarization Received
Frequency Band Received
LNB LO Frequency
13 V
Low (10.70-11.70 GHz)
9.75 GHz
950-1950 MHz
18 V
Low (10.70-11.70 GHz)
9.75 GHz
950-1950 MHz
13 V 22 kHz
High (11.70-12.75 GHz)
10.60 GHz
1100-2150 MHz
18 V 22 kHz
High (11.70-12.75 GHz)
10.60 GHz
1100-2150 MHz
a) Transponder frequency 10 774 MHz
LNB LO frequency 9 750 MHz
SAT IF frequency = 10774 - 9750 = 1024 MHz
b) Transponder frequency 11 739 MHz
LNB LO frequency 10 600 MHz
SAT IF frequency = 11739 - 10600 = 1139 MHz
6. Menu items ''Errors'' (Figure 8) shows Diagnostic information.
7. Menu items ''Reset device'' (Figure 8) is used for reload module.
8. Menu items ''Restore defaults'' (Figure 8) is used for reset module settings to default.
9. See UPC411 or UC411 User manuals for detailed control unit description.
Section 4
Same as in section 1
LNB voltage
18 V
13 V
18 V 22 kHz
13 V 22 kHz
LNB voltage +1 V
Internal temp.
Device title
Serial No
Reset device
Restore defaults
Figure 8. Control menu tree
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