Series EK-MFR/1 EK-UNM/2 board Arch. 2498 Rev A of 05/04/2007 501-000599/MN User’s handbook Digital radio link EK-MFR/1 EK-UNM/2 board Eurotek s.r.l. Pag.
Series EK-MFR/1 EK-UNM/2 board Arch. 2498 Rev A of 05/04/2007 Pag. 2 of 31 501-000599/MN REGULATORY COMPLIANCE (USA) This equipment requires licensing for operation under FCC Title 47 part 101 This equipment generates, uses and radiates electromagnetic fields that could cause interference to radio communications, is more important that it is installed and used in accordance with the instruction that are explained in this manual.
Series EK-MFR/1 EK-UNM/2 board Arch. 2498 Rev A of 05/04/2007 Pag. 3 of 31 501-000599/MN Warning! The socket utilized for the unit supply must have the appropriate ground conductor. The connection of the unit , to a socket without the ground conductor, will make the whole equipment dangerous for people safety. About the repairing of the units please refer to specialized personnel only . Inside the devices there are voltages which could be dangerous to people.
Series EK-MFR/1 EK-UNM/2 board Arch. 2498 Rev A of 05/04/2007 Pag.
Series EK-MFR/1 EK-UNM/2 board Arch. 2498 Rev A of 05/04/2007 Pag. 5 of 31 501-000599/MN INDEX 1. GENERAL DESCRIPTION ..................................................................................................... 6 1.1 1.2 2 TECHNICAL FEATURES ........................................................................................................... 7 EK-UNM/2 BLOCK SCHEME.................................................................................................. 8 BOARD PANEL .........
Series EK-MFR/1 EK-UNM/2 board Arch. 2498 Rev A of 05/04/2007 Pag. 6 of 31 501-000599/MN 1. GENERAL DESCRIPTION The EK-UNM/2 board allows a without precedents versatility in the point to point connection. The “transmodem” allows the modulate and the demodulate process for single carrier signal and OFDM signal. The more innovative feature is the possibilities to use different type of modulation also in transmission and in receiving process.
Series EK-MFR/1 EK-UNM/2 board Arch. 2498 Rev A of 05/04/2007 1.1 Pag.
1.
Series EK-MFR/1 EK-UNM/2 board Arch. 2498 Rev A of 05/04/2007 501-000599/MN 2 BOARD PANEL 2.1 Board panel representation 2.2 Board panel description A) B) C) D) E) F) G) H) I) L) IF frequency output connector (BNC) IF transmission frequency input connector (BNC) Data (ASI/E3) output connector (BNC) Data (ASI/E3) main input connector (BNC) Data (ASI) secondary input connector (BNC) IF receiver frequency input connector (BNC) Yellow led. (see LEDs and ALARMs section) Green led.
Series EK-MFR/1 EK-UNM/2 board Arch. 2498 Pag. 10 of 31 Rev A of 05/04/2007 501-000599/MN 3 LEDs and ALARMs The following table allows to obtain a complete view of the status of the leds and the alarms that can be occurred during working conditions. The letters in the led status colum indicates the led position in the board panel (see boerd panel description).
Series EK-MFR/1 EK-UNM/2 board Arch. 2498 Rev A of 05/04/2007 501-000599/MN 4. 4.
Series EK-MFR/1 EK-UNM/2 board Arch. 2498 Pag. 12 of 31 Rev A of 05/04/2007 501-000599/MN >Port Sel >>BB Input >>BB Output >>Dem In >>IF Out 35 36 37 38 >Revision >>DSP >>FPGA >>CPLD >>RamDisk 39 40 41 42 Eurotek s.r.l.
Series EK-MFR/1 EK-UNM/2 board Arch. 2498 Rev A of 05/04/2007 4.2 Pag. 13 of 31 501-000599/MN Menu description and keyboard guide The content of every menu is described below. The values of every variable can be set using the modifying variable keys (EK-MFR/1 manual, Board panel description) and to confirm the change pressing the enter key. >Status >>Out Bit Rate The value displayed in this field, indicates, the transport stream bit rate transmitted by the EK-UNM/2 board.
Series EK-MFR/1 EK-UNM/2 board Arch. 2498 Pag. 14 of 31 Rev A of 05/04/2007 501-000599/MN >>Demod lock Demod lock menu gives information about the demodulator lock condition. When the demodulator is unlocked an error occurs and on the EK-MFR/1 display it is possible to read the unlocked alarm active. When the modem works in DVBS mode the unlocked alarms can be: AGC: appears when the automatic gain control input is unlocked. Timing: is revealed when the timing recovery is unlocked.
Series EK-MFR/1 EK-UNM/2 board Arch. 2498 Rev A of 05/04/2007 Pag. 15 of 31 501-000599/MN >>Freq Error Indicates then error reported in kHz beetwen the 70 MHz IF received and the 70 MHz IF transmitted. >>Configuration Revealed if a configuration error occurs. For example, if the DVBT mode is active and the DVBT constellation is settled on the QPSK value, the hierarchic value must be settled on the “none” value.
Series EK-MFR/1 EK-UNM/2 board Arch. 2498 Rev A of 05/04/2007 Pag. 16 of 31 501-000599/MN The scrambler is active when a value is settled between 1 and 65535. The value settled must be the same for the transmission process and for the receiver process. It is not possible to have a scrambler operation in the transmission process and do not have a descrambler operation in the receiver process. >>Freq Ref Set This variable allows to set a reference frequency for the board.
Series EK-MFR/1 EK-UNM/2 board Arch. 2498 Rev A of 05/04/2007 Pag. 17 of 31 501-000599/MN >>>Const DVBT It is possible to choose the value for the DVBT constellation between three different value: QPSK, 16 QAM and 64 QAM. >>>Carriers This menu allows to configurate the numbers of the carrier for the DVBT constellation. It is possible to set 2K, 4K or 8K carriers from the board menu. >>>HP Viterbi BER Allows to set the high priority Viterbi BER.
Series EK-MFR/1 EK-UNM/2 board Arch. 2498 Rev A of 05/04/2007 Pag. 18 of 31 501-000599/MN >>BB Output BB output is the signal present on the BB out board connector (see board panel description). On the BB output connector it is possible to send the ASI out transport stream or the E3 output transport stream of the board when the Dem option is selected. If the BBLL is active, the signal present on the BB M connector is send on the BB OUT connector (Base Band Local Loopback).
Series EK-MFR/1 EK-UNM/2 board Arch. 2498 Rev A of 05/04/2007 501-000599/MN The figure below shows the Port sel menu signals path PORT NAME BB INPUT IF OUT DEM IN BB OUT SIGNAL NAME <= <= <= <= Eurotek s.r.l. Pag.
Series EK-MFR/1 EK-UNM/2 board Arch. 2498 Rev A of 05/04/2007 Pag. 20 of 31 501-000599/MN >Revision >>DSP It is possible to see the DSP software release on the EK-MFR/1 display. >>FPGA It is possible to see the FPGA software release on the EK-MFR/1 display. >>CPLD It is possible to see the CPLD software release on the EK-MFR/1 display. >>RamDisk It is possible to see the RamDisk software release on the EK-MFR/1 display. Eurotek s.r.l.
Series EK-MFR/1 EK-UNM/2 board Arch. 2498 Rev A of 05/04/2007 Pag. 21 of 31 501-000599/MN The example below explains how to set the DVBS constellation of the board on the 256Q7/8 value. The procedure to set the DVBS constellation parameter is similar to set the other RW variable of the board.
Series EK-MFR/1 EK-UNM/2 board Arch. 2498 Rev A of 05/04/2007 Pag. 22 of 31 501-000599/MN The Setting menu is showed on the EK-MFR/1 display, so pushing the enter key it is possible to enter in every sub menu of the Setting main menu. The first sub-menu is Mode Tx (par 3.1) as the next figure shows. With the explore menu keys, it is possible to see every sub-menu stored in the Setting menu, so the user can see the DVBS parameter. Eurotek s.r.l.
Series EK-MFR/1 EK-UNM/2 board Arch. 2498 Rev A of 05/04/2007 Pag. 23 of 31 501-000599/MN The DVBS parameters sub-menu is composed by the Symbol rate, Constellation DVBS and RollOff variable. Pressing the enter key it is possible to view these variable. (the first is Symbol rate). Using the explore menu keys it is possible to shows the DVBS params variable, the default value for this parameter is 4Q7/8 (QPSK constellation with a Viterbi rate of 7/8). Eurotek s.r.l.
Series EK-MFR/1 EK-UNM/2 board Arch. 2498 Rev A of 05/04/2007 Pag. 24 of 31 501-000599/MN To change the default value displayed it is necessary pushing the enter key. The variable vaklu flashing and using the modify variable keys it is possible to set the parameter on the 256Q7/8. When the value is displayed, pressing the enter key it is possible to confirm the change (as the next figure shows). If the Esc key is pressed the display return the previous value. Eurotek s.r.l.
Series EK-MFR/1 EK-UNM/2 board Arch. 2498 Rev A of 05/04/2007 Pag. 25 of 31 501-000599/MN 5. WEB PAGE The EK-UNM/1 board is supplied of a web page that allows to obtain a complete view of the status of the board variables. When the EK-MFR/1 system is connected to a terminal unit (PC) and the web pages of the system are loaded (EK-MFR/1 user ‘s handbook, web interface chapter), the user can see the following EK-MFR/1 main web page: Eurotek s.r.l.
Series EK-MFR/1 EK-UNM/2 board Arch. 2498 Rev A of 05/04/2007 Pag. 26 of 31 501-000599/MN The EK-UNM/2 board is loaded in the slot number four; to visualize the web page of the board is necessary to move, using a mouse, the cursor on the slot associated to the board (slot 4) and then to click the left mouse button on its. So we obtain the following image: The web page of the EK-UNM/2 board is showed above. In the top section, are reported the version of the software tool (v 1.
Series EK-MFR/1 EK-UNM/2 board Arch. 2498 Rev A of 05/04/2007 Pag. 27 of 31 501-000599/MN The next example shows how to set a variable value of the board. The procedure to set every variable value is similar to this. We suppose to change the DVBS symbol rate variable. This parameter is located in the Modem Setting menu under the DVBS parameter.So, the first step to change the DVBS symbol rate is to enter on the Modem settings menu.
Series EK-MFR/1 EK-UNM/2 board Arch. 2498 Rev A of 05/04/2007 Pag. 28 of 31 501-000599/MN To change the symbol rate menu, pushing the left mouse key on the symbol rate dialog box, a cursor flashing, now by the keyboard it is possible to insert the new numeric sybol rate value (the value must be included beetween 2.5 Msym/sec and 32.0 Msym/sec), for example 20.0 Msym/sec. The new value inserted is displayed: Eurotek s.r.l.
Series EK-MFR/1 EK-UNM/2 board Arch. 2498 Rev A of 05/04/2007 Pag. 29 of 31 501-000599/MN We have settled, for example, the refresh time parameter on the 30 seconds indicator, so every thirty seconds the system variables are refreshed. When the refresh countdown is complete the refresh label is flashing. When a new value is loaded in the variable window (in the example DVBS Symbol rate = 20.
Series EK-MFR/1 EK-UNM/2 board Arch. 2498 Pag.
Series EK-MFR/1 EK-UNM/2 board Arch. 2498 Rev A of 05/04/2007 501-000599/MN Eurotek S.r.l. c/o Parco Scientifico Tecnologico e delle Telecomunicazioni in Valle Scrivia Strada Comunale Savonesa, 9 15050 RIVALTA SCRIVIA (AL) tel. +39 (0)131 860205 r.a. fax +39 (0)131 860993 http://www.eurotektel.com e-mail: info@eurotektel.com Eurotek s.r.l. Pag.
