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Calian SatService sat-nms LF20 User Manual

20 slot optical links
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20 Slot Optical Links
sat-nms LF20
User Manual
Version 1.2.008
© Copyright
SatService Gesellschaft für Kommunikationssysteme mbH
Hardstrasse 9
D-78256 Steisslingen
satnms-support@satservicegmbh.de
www.satnms.com
www.satservicegmbh.de
Tel +49 7738 99791-10

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  • Page 1 20 Slot Optical Links sat-nms LF20 User Manual Version 1.2.008 © Copyright SatService Gesellschaft für Kommunikationssysteme mbH Hardstrasse 9 D-78256 Steisslingen satnms-support@satservicegmbh.de www.satnms.com www.satservicegmbh.de Tel +49 7738 99791-10...

  • Page 2: Table Of Contents

    Table Of Contents Table Of Contents ..........................sat-nms LFTX/RX LF20 User Manual ....................1 Introduction ............................1.1 Compliances ..........................1.1.1 CE Compliances ......................... 2 Installation ............................2.1 Safety Instructions ........................2.2 Handling instructions for optical connectors ................2.3 Setting the IP Address ....................... 2.4 Mechanical installation ......................
  • Page 3 5.1 Frequency bands ........................5.2 Connectors ..........................5.3 Controller Module ........................5.4 Redundancy switching ......................5.5 Outline Drawing ........................6 Specifications ..........................(C) 2021, SatService GmbH www.satnms.com LF20-UM-2107 Page 2/43...

  • Page 4: Sat-Nms Lftx/Rx Lf20 User Manual

    sat-nms LFTX/RX LF20 User Manual Version 1.2.008 -- 2021-07-29 -- © 2020-2021 SatService GmbH Abstract This document is the user manual provided with the sat-nms LFTXRX fibre optical link equipment. It contains all necessary information how to install, setup, and operate the unit. The user manual is available as a printed document and for on-line reading on the optical links itself as well.

  • Page 5: Introduction

    3.5.1 Local operation LFTX Card 3.5.2 Local operation LFRX Card 3.5.3 Local operation LFSW Card 4 Remote Control 4.1 General command syntax 4.2 The TCP/IP remote control interface 4.3 The RS232 remote control interface 4.4 SNMP Control 4.5 Parameter list 5 Theory of Operation 5.1 Frequency bands 5.2 Connectors...

  • Page 6: Compliances

    Installation : The installation chapter guides through the installation and setup of the sat- nms LFTXRX. It describes the mechanical concept of the chassis and the assignment of the connectors. Finally you learn in this chapter how to set the sat-nms LFTXRX's IP address, which is a essential precondition to operate the sat-nms LFTXRX by means of a web browser.

  • Page 7: Installation

    This equipment has been tested and meets the specification of following safety standards: EN 60950 EN 62368 Every single delivered unit is tested according to EN 60950 to ensure best possible user safety. To meet all safety requirements it is necessary to keep with the cabling requirements mentioned in the installation chapter.

  • Page 8: Handling Instructions For Optical Connectors

    may cause damage to the polished optical connector end faces Follow standard Electrostatic Discharge (ESD) procedures when handling a the chassis and the modules of the LFTXRX. The ground terminal of the device has to be permanently connected to a grounding point for save operation.

  • Page 9: Setting The Ip Address

    compressed air spray like e.g. 'Kontakt 334' or a special cleaning device like e.g. 'CLETOP' or 'one click cleaner'. Do not use compressed air produced by a standard air compressor, this air is not clean enough! If a dirty fibre (e.g. contaminated with dust) is connected to a LFRX or LFTX card, the internal fibre of the LFTX or LFRX card will be contaminated as well and you will get optical attenuation.

  • Page 10: Mechanical Installation

    5. The serial number shown in the first column of the list, must match the serial number printed on the processor's enclosure. If the list stays empty, the LFTXRX chassis is not connected properly. If there are more entries in the list, the configuration program has found other devices in this network segment which use the same technology.

  • Page 11: Connecting The Sat-Nms Lftxrx

    above the unit. If you have not enough rack-space for meeting this requirement, call SatService to develop a suitable solution. When planning the mechanical installation of the chassis, please consider that the connectors are placed at the front and the backside of the enclosure. Depending on the flexibility of the cables you are going to use, you will require about 10 centimetres space for cabling on both sides of the chassis.

  • Page 12: Optical Receiver ,Transmitter And Switch Cards

    configuration. 75Ohm F-type is available on special request. Use double shielded coaxial cables, e.g. RG223, only. The fibre optic connectors are E2000 or FC/APC types depending on the configuration. It is essentially to use single mode cables with 8° angled polish for proper function. 2.5.1 Optical receiver ,transmitter and switch cards Attention: Optical Radiation! If connected to a power supply, the LFTXRX provides invisible laser radiation.

  • Page 13: Power Connectors And Power Supplies

    2.5.2 Power connectors and power supplies Power connectors At first, connect the screw, labelled with "GND" to Ground (e.g. to the 19"-Rack the chassis is mounted in). After that connect the chassis to 90-240V A/C via IEC connectors. Use power cords with an earthing contact and protective earth connection only! The sat-nms LFTXRX is working with only one connected power supply as well, but we strongly recommend to use two different power supplies to ensure the maximum system availability.

  • Page 14: Rf Connectors

    J1.1 Alarm connector Dry alarm relay contacts represent a summary fault state of the unit. Both relays do switch parallel and show always the same state. Alarm contacts (DSUB-9 male) closed if ok, open in fault state COM1 common for fault relay 1.te .ts 3 not connected not connected closed if ok, open in fault state...

  • Page 15: Optical Connectors

    corresponding slot, the connector is an in- or an output. If e.g. in slot 1 a LFTX card is placed, the connector I/O 1 is a RF-input. If there is placed a LFRX- card, I/O 1 is a RF-output. In the standard configuration all RF-connectors are SMA/ 50Ohm female connectors. If you need other connectors e.g.

  • Page 16: Optional 75Ohm Converter

    For details about the front panel operation of the sat-nms LFTX optical transmitter card and sat- nms LFRX optical receiver card please refer to the chapters Local operation LFRX Card Local operation LFTX Card 2.5.6 optional 75Ohm converter The internal design of this unit is based on 50Ohm. To fit the sat-nms LFTXRX optical links to a 75Ohm system, internal 50/75Ohm converters with 75Ohm F-type connectors are available.

  • Page 17: Configuring The Optical Links

    system design, both modules can be installed even in a mix configuration to your sat-nms LFTXRX frame. 2.6 Configuring the Optical Links This chapter gives a short overview about some configuration parameters you want to set after you have installed the sat-nms LFTXRX. A complete reference of all available setup parameters is given in chapter Setup Parameters Setup / Config Parameter...

  • Page 18: Operation

    3 Operation The sat-nms LFTXRX Optical Link is designed to be controlled over a network link using a standard web browser. This means in practice, that the user interface to the unit appears in your browser window after you type in the chassis IP address in the address field of the browser program.

  • Page 19: Reading Of Lfrx Receiver Card

    green All parameters are within the given range, everything is ok. One or more parameters is out of range, fault state. orange One or more parameters is out of range, but defined as warning state. 3.2.1 Reading of LFRX receiver card If a LFRX card is installed, you can read the following parameters: Parameter Description...

  • Page 20: Reading Of Lftx Transmitter Card

    shows a (red) value to indicate a fault. If the RF power is above the limit it shows a (green) value. RF Thresh. Software-limits configuration: <-90dBm will disable the Threshold Alarm, <- 95dBm will also disable the RF-card Alarm/Warning (Hardware Limit Card) at the Web-page and the remote interface.

  • Page 21: Reading Of Lfsw Switch Card

    range is approx. -45...0dBm (range varies by changing RF offset on Setup RF Pwr page and gain setting. Provided values are valid for RF offset = -61dB and gain setting = 0dB). This value shows the input RF power of the LFTX cards to the Laser-diode. The colour code of this parameter tells you if the value is in range (green) or not (orange).

  • Page 22: Reading Of Empty Slots

    If a LFSW card is installed, you can read the following parameters: Parameter Description Name It is possible to change some settings of the LFTX card remote (e.g. via web browser interface) or local (only on the front panel of the card). The current Remote state of the hardware remote/local switch on the corresponding card is shown here.

  • Page 23: Configuration Of Operational Parameters

    If a slot is empty, besides slot number and slot name no parameters are displayed, the slot- summary-state is always 'OK'. 3.3 Configuration of operational parameters The page 'Config' contains the operational parameters. Operational parameters are those which are assumed to be changed more frequently than the installation parameters on the Setup page. The page displays a table with the parameters actually set.

  • Page 24: Configuration Of Lftx Transmitter Card

    If "RX" is chosen as card type, you can change the following parameters: Parameter Description Name You can give every slot a name with up to 18 characters. Click on the Note Hyperlink, a page to change this parameter will be opened. Type in here the desired slot name and press the submit button.
  • Page 25 If "TX" is chosen as card type, you can change the following parameters: Parameter Description Name You can give every slot a name with up to 18 characters. Click on the Note Hyperlink, a page to change this parameter will be opened. Type in here the desired slot name and press the submit button.

  • Page 26: Configuration Of Lfsw Switch Card

    LFTX cards are able to power LNCs with 15VDC. This parameter switches the LNB DC 15VDC to the on or off. This parameter defines the LNB current minimum level. In case of under- running this level (e.g. if a cable break occurred) the LNB current alarm will Curr.Min be set.

  • Page 27: Empty Slots

    Pos B the defined number have to be done. 3.3.4 Empty slots If "NONE" is chosen as card type, you can change the following parameters: Parameter Description Name You can give every slot a name with up to 18 characters. Click on the Note Hyperlink (in the picture beyond Rx1), a page to change this parameter will be opened.
  • Page 28 Parameter Description Name General Enter here the Name of the LFTXRX chassis. This name will be displayed Note on the top of the State page. If you want to set the Date and/ or the Time, type the actual Date and Time in the following syntax: YYYY-MM-DD HH:MM:SS It is not possible to change only one of both parameters.

  • Page 29: Local Operation Lftx, Lfrx, Lfsw Card

    System The unit replies to MIB-II sysContact requests with the text entered at this Contact place. Access Control Here you can define the password for the 'user' login. Default password is 'user'. When you are logged in as 'user' you are only able to change the User password parameters on the 'Master Ch.' And the 'Slave Ch.' page.

  • Page 30: Local Operation Lfrx Card

    You have the possibility to change the following parameters: Parameter Description An integrated attenuator makes is possible to attenuate the RF-input-signal Gain in 1dB-steps from 0 to 31dB. This switch has 16 steps. Use the 0..15 switch to select the attenuation range to 0-15dB or 16-31dB. By setting this switch, you define the range of attenuation, that can be set by 0..15 the gain switch.

  • Page 31: Local Operation Lfsw Card

    This (green) LED shows the state of the RX Pin diode. The LED turns on, if the optical input is in range. The (green) PS-LED displays the power supply state of the card. The LED is on, if the power supply of the card is working. The (yellow) Max-LED turns on, if the RF output level is above the recommended level.

  • Page 32: Remote Control

    Parameter Description The (green) PS-LED displays the power supply state of the card. The LED is on, if the power supply of the card is working. This (yellow) LED shows the state of the Remote Local setting. The LED turns on, if the card is in local. The (green) LED turns on, if the RF switch in postion A.

  • Page 33: The Tcp/Ip Remote Control Interface

    The value in the reply is the value actually recognized by the device. For instance, if the requested value was out of range, the replied (and internally used) value is limited to the applicable minimum or maximum. To read a parameter from the LFTXRX, instead of a new parameter value a question mark is sent: name=? The device replies the actual value in a complete message:...

  • Page 34: Snmp Control

    Beside the network interface, the sat-nms LFTXRX also provides an RS232 serial port which can be used to control the device remotely. Depending on the device address set, the LFTXRX either runs framed protocol with start/stop characters and checksum or it provides a dumb terminal interface.

  • Page 35: Parameter List

    The actual MIB file defining the sat-nms LFTXRX Optical Link private MIB may be downloaded from the unit itself by FTP (user 'service', password 'service'). The file 'LFTXRX.MIB' contains all necessary information. A link to this MIB file is also included in the web interface on the 'setup page'.
  • Page 36 plcm Card type of each slots RX,TX,NONE n05m [card1],..,[card05] Description/Note card 1..5 n10m [card6],..,[card10] Description/Note card 6..10 n15m [card11],..,[card15] Description/Note card 11..15 n20m [card16],..,[card20] Description/Note card 16..20 [card1],..,[card20] thrm RF Threshold for each slot diom [card1],..,[card20] dB Diode RF Offset for each slot rfom [card1],..,[card20] dB RF RF Offset for each slot...
  • Page 37 povm of each slot [card1],..,[card20] lnvm LNB current for each slot [temp1],[temp2] ° tmpm Temperature chassis Fault related commands name range/format description alrm [see below] Faults chassis HTTP Only Setup related commands name range/format description sdes SNMP System description scon SNMP System contact snam SNMP System name...

  • Page 38: Theory Of Operation

    O00000000000000000000 L00000000000000000000 T00000000000000000000 S00000000000000000000 (retrun of this command is one line. lines are wrapped in this example for better readability) The example shows an master chassis, where the following alarms are active: power supply 1, rf fault of slot 5 and 10. Please keep in mind, that not all slots have to be equipped with LFRX, LFTX or LFSW cards and the empty slot may show a fault.
  • Page 39 following block diagram shows a typical scenario of a teleport. The LNCs at the different antennas provide L-Band output signals which have to be routed via long cable runs from the antennas to a central site, in this case a switch matrix. The optical transmitter converts the analog L-Band spectrum (or any other RF spectrum in the specification of the different modules) with the help of a laser diode to a optical output signal with a wavelength of 1310nm.

  • Page 40: Frequency Bands

    The second block diagram shows the combination of the sat-nms LSM L-Band Switch Matrix with the sat-nms LFRX L-Band Fibre Optical Receivers. So you use the LFRX card directly in our switch matrix. 5.1 Frequency bands While the fibre optical links where designed by SatService GmbH mainly for the transmission of the satellite L-Band frequency band (950 to 2150MHz) also a broadband version from 50MHz to 2150MHz is available.

  • Page 41: Connectors

    plugged into a 2U 19" chassis. The chassis includes a redundant power supply, two backplanes to connect to the modules, a M&C printed circuit board and at the front panel a keyboard and display as local user interface. Each chassis can contain 10 of the optical link modules in any combination whether they are optical transmitters or receivers.

  • Page 42: Redundancy Switching

    No external RAM and ROM components 10/100 BaseT RJ45 Interface 5.4 Redundancy switching A novel and additional feature of the sat-nms LFTXRX system is the capability to switch complete optical links in a 1:1 Redundancy and restore operation within a second if one of the optical links gets defective.

  • Page 43: Specifications

    6 Specifications RF Specification 950 to 2150MHz or 50 to 2150MHz or Frequency range 950 to 2150MHz with multiplexed 10MHz or 10MHz only SMA female 50Ohm or F-type female L-Band Input Connectors (Transmitter) 75Ohm as option SMA female 50Ohm or F-type female L-Band Output Connector (Receiver) 75Ohm as option L-band input test connector (Transmitter)
  • Page 44 Output Level max (total power directly at LFRX -5 dBm card) Intermodulation at -13dBm Input Level (total level <-40 dBc directly at LFTX card) DC-output at L-band input connector 15+/-1V (for LFTXL Model only) redundant card: typ. 3dB per frame 50/75Ohm converter: typ.

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