SMW LNB User manual

Manual
LNB
General Guidelines
®

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Table of Content
1. Description ................................................................................................................................................ 3
2. Safety warnings......................................................................................................................................... 3
3. Installation instructions .......................................................................................................................... 3
4. Alarm and Monitoring & Control........................................................................................................... 5
5. Troubleshooting........................................................................................................................................ 6
6. Maintenance and Repair information.................................................................................................... 6
7. Technical specifications ............................................................................................................................7
8. Warranty and Legal information ............................................................................................................7
9. Contact details ..........................................................................................................................................7
Full version User Guides
Komplette Betriebsanleitung
Version complete du manuel
Manual de version completa
www.smw.se/ug/

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Thank you for choosing products from SMW
1. Description
LNB (Low Noise Block Downconverter) for Professional satellite communication to meet
the highest Satcom demands. Our LNB products are all of PLL design and with low phase
noise and noise figure. Tolerant design with high P1dB and IP3. Our RF over Fiber links help
you get the best from your satellite dish antenna system. With excellent dynamic range and
very low phase noise and noise figure our products meet the demands of HTS symbol/data
rate. Most of our products meet the DVB-S2X standard. On select products - Alarm and
Monitoring & Control functionality, using the Modbus protocol and RTU RS485 standard.
All In-House design, engineering and manufacturing in Sweden since 1986.
2. Safety warnings
WARNING! Make sure that the antenna system is grounded to earth to avoid
potential voltage that can be discharged through the LNB.
3. Installation instructions
Unpacking
Please compare the contents of your shipment with the packing list supplied.
Mounting
Remove the adhesive waveguide protector before installation. Always use the enclosed
screws and O-ring when mounting the LNB to the antenna feed system, any other means
of mounting may void the warranty.
CAUTION! Use the recommended DC voltage to the LNB. Too high voltage can
damage the LNB. Connect everything properly before switching on DC voltage.
Please consider the voltage drop in a long coaxial cable as too low voltage can aect
the functionality.

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Connector (J3) for Monitoring & Control
Type: RS485, M8 female, 4 pin, A-coded
Functions: Alarm and Monitoring & Control
1 = Alarm open collector (max. 200 mA)
2 = A pos+ RS485
3 = B neg- RS485
4 = Common (GND)
5 = Shield https://modbus.org/
1
2
4
5
3
M&C
monitoring and control interface
J1
Protect the coaxial cable
connector with rubber
seal tape.
Unused connector(s) should
remain protected with cover.
Never mount waveguide
flanges with O-ring groove
facing each other. One
flange must be flat and
without O-ring groove.
CAUTION! Protect against water penetration. The components are designed for operation
in temperatures between -40 to +80°C. However waveguide input is not waterproof and
MUST BE protected from moisture and water. In extreme environments such as close
to corrosive salt sea water or elevated installation in antenna towers where IP67 class
protection can be deemed insucient, it is recommended that appropriate action is taken
to ensure reliable operation and longevity.
Illustration of LNB - product may differ from image
Connectors
J1 – Waveguide input. Type and size of
waveguide and flange will be specific to LNB
input frequency range.
J2 – IF output, DC input and/or External 10
MHz reference multiplexed. Available connec-
tor types: N(f) 50 Ω, SMA(f) 50 Ω, F(f) 75 Ω.
Optional
J3 – Monitoring & Control input / Alarm
switch. Connector is M8(f), A-key coded.
J4 – Optional DC input and/or 10 MHz input.
SMA(f) 50 Ω connector only.
J4
J3
J2
Illustration of connectors - product may differ from image

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4. Alarm and Monitoring & Control
For further details about the Monitoring & Control Technical Interface please see Technical spec-
ifications in Product sheet. Monitoring & Control requires a Host, RS485 connecting hardware
(see SMW M&C Startkit), Product specific Register Map and applicable software.
NOTICE! Applicable software is not provided. Monitoring & Control option is available on
select SMW products.
Alarm output:
The Alarm output connector J3 pin 1 is an
Open collector, Open on fault. 3.3V to 24V
max. 200mA. Factory setting is NC (Normally
Closed). The alarm output is a sum alarm
that trigger:
• LO; Locked, External LO reference
detected, External LO reference lock
• Total current consumption (>600 mA)
• LNA (built in) failure
• RF power (IF) detector outside limit
(outside -57 dBm to -5 dBm)
Alarm wiring
https://modbus.org/
M8 connector LNB/BDC outside view
Remote endLocal End (Host)
+ 3.3 to 24 VDC, 200 mA max.
1 kΩ typ.
Pin 1 = Alarm
Alarm – logical high on
fault
NO*) on
fault
1
2
3
4
*)NO = Normally Open
Direct and Chain Connection Schematic
Schematic illustrations only, may dier from actual products
RTU / Host
Monitoring & Control
communication
Transceiver
USB-RS485
0.2 meter
M8 Cable 2 meter
male-to-male
Included in startkit:
Example for Direct connection
with USB transceiver
Example for Chain connection
with RTU Gateway to Ethernet
M&C enabled LNB
(or BDC) unit
M8 splitter / Y-adapter
2x female 1x male
TCP
GATEWAY
Cable M8 20 meter, 5 meter
male-to-male or 10 m male-to-pigtail
Accessories to startkit:
Adapter Cable 0.3 meter
male-to-female
A & B = RS 485 (Tx & Rx)
C = Common
D = Cable shield to ground. Only to be grounded at one point!
E = TP cable (twisted pairs min CAT 5 shielded). Length max 200m.
F = TP cable (twisted pairs min CAT 5 shielded). Length max 20m.
G = 120 ohm resistor. Needed if cable E is longer than 30 m.
Satellite Antenna
FF FF FF
LNB 1
(Client 1)
LNB 2
(Client 2)
LNB n
(Client n)
D
E
A B C A B C A B C
G
Modbus TCP
to RTU
Gateway
RS485
USB to
RS 485
Modbus
Y-splitter
TP cable < 200m

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5. Troubleshooting
First of all, make sure that the LNB input has correct DC voltage, see the Technical Specifi-
cations. If there is a very long cable feeding the LNB with power, this may cause DC to drop
below critical value, this could cause the LNB to be unstable or not work at all.
If the DC Voltage is OK but still there is a problem with the received signal, then check if
there is any line amplifiers or other products installed between the receiver and the LNB
and make a pass by of the signal to isolate that equipment to see if issue solved.
Also if the LNB is installed in a large antenna, the LNB can be saturated and will then not
give the calculated output level or a distorted signal out. It is important to consider the
gain of the LNB as big antennas may need a LNB with lower gain.
For troubleshooting of the Alarm and Monitoring & Control functionality we refer to our
QnA, please visit the Knowledge base at www.smw.se or contact us on [e-mail] for
further assistance.
6. Maintenance and Repair information
There are no user serviceable parts inside. For service, request RMA at www.smw.se or
contact SMW for an RMA number before returning any units, send an email to support@
smw.se.
NOTICE! Materials returned without an RMA number will be refused.

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7. Technical specifications
Technical specifications are typical, specific part number specifications are available.
Specifications are subject to change without prior notice.
For further details about the Monitoring & Control Technical Interface
please scan QR-code link to product website complete with
Documentation, Technical Specifications, Manual and Modbus
Register Maps. Find your product at https://smw.se/findproduct
8. Warranty and Legal information
General Conditions and warranty:
ORGALIME S 2012 and appendicies. Standard Warranty of 36 Months.
Products from Swedish Microwave AB are made for commercial use.
All SMW products are CE compliant with the following EU Directives as applicable,
depending on when placed on the market:
Low Voltage Directive (LVD) 2014/35/EU
Electromagnetic Compatibility (EMC) Directive 2014/30/EU
Radio Equipment Directive (RED) Directive 2014/53/EC
Reduction of Hazardous Substances (RoHS 2) Directive 2011/65/EC
Regulation (EC) No 1907/2006 (REACH Regulation)
Declaration of Conformance is available on request..
SMW is Assessed and Certified for:
SS-EN ISO 9001:2015 Quality management systems
SS-EN ISO 14001:2015 Environmental management systems
SS-EN ISO 45001:2018 Occupational health and safety management systems
9. Contact details
Address: Swedish Microwave AB, Dynamovägen 5, 591 61 MOTALA, SWEDEN
Main Phone: [phone]. Email: [e-mail].
Sales: [e-mail].
Contact information is available on the company website at www.smw.se.
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M21421-001 rev2303