Assembly Instructions English
Contents
1. C 50 C approx 700 x 383 x 315 approx 30 kg 18 V lt 1 A total short circuit proof 12 V lt 1 A total not short circuit proof use with appropriate external fuse only Class A data interface for software update and remote maintenance quantity 3 950 2150 MHz 2 F sockets 1 F socket 10 F sockets 75 Q typ 20 dB 9 14 dB typ 8 dB 9 12dB 17 20 dB 18 V max 1 A total 1 A at one LNB connector 0 5 A at two LNB connectors 0 25 A at four LNB connectors etc 45 862 MHz O 225 dB electronically O 6 dB electronically 75 0 2 5 Return loss HF output Decoupling loss of the inputs Hybrid amplifier Input frequency range Gain Output level CSOA x60 dB 29 channels Input output impedance Operating voltage Current consumption HF output Measuring output Decoupling loss Power supply Mains voltage Power consumption Description The head end station has a modular structure and can hold up to 12 Standard cassettes You can find a list of the current Standard cassettes at the website hitp www gss tv This head end station is designed exclusively for use with cassettes of the Standard marketing programme The various expansion options for the head end station allow for the installation of a wide range of broadband cable systems Each of the three integrated SAT IF input distributors has two SAT IF inputs You can use them to2. C and the highest inner temperature recorded to date e g 84 C The inner temperature which activated the lock must be deleted to reactivate the tempera ture monitor and the software You can also select the current inner temperature SYSTEM INFO SYSTEM INFO MAX 68 C 84 C Temp 21 C M 29 e Press the button to select the current inner tem perature e g ecr gt Press the button again to return to the previ ous menu e Press and hold down the Qj button for at least 3 seconds to delete the activation temperature e g 68 C The current inner temperature appears e Press the I button gt The settings are saved gt Via connection A you return to the Activating sys tem information menu item page 23 12 Final procedures N After installing the head end station upgrading accessories or installing cassettes it is necessary to tighten all cable connections F terminals and cover screws in order to maintain compliance with current EMC regulations securely e Securely tighten the cable connections Cinch HF connectors using an ap propriate open ended spanner e Hang the front cover 1 fig 1 page 8 into the locators J fig 2 page 8 e Push the front cover downward and close the lock 2 fig 1 page 8 The EMC seal of the front cover must fit tightly against the head end sta tion s housing Service Phone 49 0 911 703 2221 Fax 49 0 9
3. e g 68 C displayed t gt 3 sec A Page 21 PP 11 3 Programming the head end station gt Pressing the ING button for longer than 2 seconds cancels the pro gramming procedure This takes you back to the program item Activating system information from any menu Any entries that have not been saved are reset to the previous settings gt Entries in the menus can be saved by pressing the I key You are taken back to the Activating system information menu item e Switch on the head end station gt The display shows the software version of the head end station e g V 39 The processor reads the cassettes data approx 10 seconds V 39 BE Remote please wait e Activate the System information software by simultane ously holding down the buttons Ell and EM for more than 2 seconds in the Selecting the cassette mode The display darkens Afterwards the System information control unit SYSTEM INFO BErem menu appears The System information software also can be called up from the stand by mode of the display 23 System information control unit This menu shows the software version of the control unit e g V 39 SYSTEM Output Coll V 1 Ki G Y To perform settings press the HS button gt The Setting the HF output level of the cassettes BOX LEVEL is activated Continue on page
4. 4 3 2 Stand mounting e Position the head end station on a shelf so that the distance to the shelf walls on either side is minimum 20 cm Ensure minimum 20 cm of free space above and minimum 1O cm behind the head end station as well IDE 4 3 3 Mounting in a cabinet N In cabinets a circular aeration e g by means of ventilators is to be ensured In addition it is necessary to permanently control the ambient temperature of max 50 C by means of thermo elements If the ambient temperature inside the cabinet exceeds 50 C a thermo switch with reclose inhibition must automatically disconnect the system from the mains power supply e Position the head end station in the cabinet so that the distance to the cabinet walls on either side is minimum 20 cm Ensure minimum 20 cm of free space above the head end station as well 5 Installing a cassette Before installing or changing a cassette unplug the power cable of the head end station from the mains power socket Remove the fastening screws S of an unoccupied slot 3 from the bracket of the head end station e Insert the cassette in this slot and push it into the housing Align the cassette according to the connections in the board and the HF col lector and press it firmly into place in the head end station e Fasten the cassette with the screws S 6 Power supply 6 1 SAT IF input distributor See figures 11 and 12 for the power supply for the SAT IF input distrib
5. OEE EAEEREN EEEE ER 14 ed SAT IEEE SISICIDHIOE ees E EE 14 BR DE ES SEE TE E MEI CES EUN 14 6 3 Connecting peripheral devices essssssssssse e 14 Connecting the head end station sccssscsssscsssscssssssssscssccssscssssscsssssssssssensessaseeees 15 7 Potential equalisation esssssssssse eene 15 72 Connecting the SAT IF input distributor sssssssss 15 73 Connecting HF output of the head end station ccccccccceeeeseeseeseeeeeeeeeeees 16 LE MEE Seo oa RR a EMT 17 Setting the contrast of the display eee eee celere eres eene ente eetne 17 The control panel at a glance 4 11e Lees eee esee eere e ee eene eere etta setae 18 Updating the software of the control unit ceeeeee ecce serene rennen 19 FOT EB esee via PO arraroren EENES 19 10 2 Updating the software via second control unit sesess 19 POC ueni nante PENNE E IT TO ODE 21 IINE oou TT m 2l 152 Programming procedure ss t uvse guste sureste cuiu Iesu ENTES ese etd poder RU TU 21 11 2 1 Message after temperature eExCceeding ccccccccccceeceeeeeessseeeeeeeees 27 11 3 Programming the head end station sssssssss 23 11 3 1 Programming the head end station following excess temperature 29 ial procedures noster dn oir T E 30 1 Notes about safety and hazards LN Observ
6. control units e Switch on the head end station The head end station s slave control unit registers with the current ver sion of the software Inserting master control unit e Connect control unit 7 to the snap in hook 26 fig 20 e Push the control unit towards the head end station in the direction opposite that of arrow 2 on the bottom and connect it to the 15 pin D SUB socket of the head end station e Connect snap in hook 25 in the direction opposite that of arrow 1 20 11 Programming 11 1 Preparation e Connect the test receiver to the test output of the head end station e Set the HF output data of the cassettes used 11 2 procedure BE Remote please wait SYSTEM j SYSTEM BErem Output Coll SYSTEM INFO MAX 68 C 84 C SYSTEM Station Nr SYSTEM 14 7 MHZ o 16 0 MHZ Abhangig von der Clock 16 0 MHz verwendeten Taktfrequenz Dependent on the clock frequency used BOX LEVEL Bx 1 EE Bx 1 Bx 12 LEVEL 0 dB E E o 25aB NOE EU Bx 1 8x12 DB o 25aB STATION LEVEL LEVEL 0 6 dB SYSTEM MODEM OFF aH ON OFF 11 2 1 Message after temperature exceeding Instead of the standby BE Remote menu the ATTENTION menu is displayed ATTENTION Temp 1 68 C SYSTEM INFO SYSTEM El MAX 68 C 84 C Temp Angezeigte Maximaltemperatur Aktuelle Temperatur z B 68 C l schen t gt 3 s M Current temperature Deleting maximum temperature
7. distribute two reception levels over 4 or 6 outputs Using the loop through output enables you to distribute reception level 1 over the 10 outputs for each SAT IF input distributor The F sockets of both reception levels are coloured Basic signal pattern typ 14 dB IEC connector typ 30 dB 45 862 MHz typ 24 dB 106 dBpV 75 Q 24 V typ 230 mA F socket IEC connector typ 20 dB 220 240V 50 60 Hz max 210 W Unused loop through outputs must be terminated with the resistors supplied The power supply in the head end station is designed to supply power to com ponents e g LNBs connected upstream These are supplied via the SAT IF input distributors input sockets with operating voltage 18 V at a total current of max 1 A In addition the head end station s power supply unit can be used to supply peripheral devices with voltage 12 V max 1 A with an external fuse The cassettes HF output signals are accumulated in a programmable HF output collector and then directed to the HF output and to the test output via the down stream hybrid amplifier When the head end station is shipped from the factory the default setting for the HF output level of the output collector is 3 dB You can use the software of the control unit to program the master output level of the head end station The software version of the control unit appears on the two line LC display after switching on the hea
8. 11 703 2326 E mail serviceGgss tv Alterations reserved Technical data E amp O E O by GSS GmbH 27012009
9. 26 To call up information about the head end station press the LA button following information menus or the Ell button previous information menus gt The System information output collector SYSTEM INFO Output Coll submenu is activated SYSTEM BErem System information output collector This menu shows the software version of the output collector e g V 1 SYSTEM Output Coll V 1 A lt a gt v SYSTEM BErem e Press the button gt The System information temperature SYSTEM INFO Temp submenu is activated 24 System information temperature This menu shows the temperature inside the head end station Additionally the temperature display can be switched from degree Celsius to degree Fahrenheit and the highest inner temperatures recorded to date can be displayed v SYSTEM INFO Temp 21 C Be T C F El G v SYSTEM INFO MAX 68 C 84 C e Using the E E buttons set the temperature display wished e To activate the highest inner temperatures press the button gt Press the button again to return to the previ ous menu e Press the button gt The System information number of the head end station SYSTEM INFO Station Nr submenu is activated System information number of the head end station This menu shows the number of the head end station see also item Setting
10. GSS Grundig SAT Systems Head End Station STC 1200 GSS Phone 49 0 911 703 8877 2p Grundig SAT Systems GmbH Fax 49 0 911 703 9210 LLI Beuthener Strasse 43 E mail info gss tv Assembly Instructions D 90471 Nuremberg Internet http www gss tv Contents 10 11 12 Notes about safety and hazards ecce eee eere e eene eere entente 3 General information ceci ee eee eese eene tenete ette etes tn seen seta setae eene eene et sees 4 2 Meaning of the symbols used sssssssssse 4 Pie ame Soo odo ENNRR EE P 4 23 Available accessories oa EEN a motu bem mue nn S US 4 24 TechhieoldellcEs esi temerarium dto iden ende miele me dE NMES 9 2 TOSS CEG queer onde iue UBI div rene EN ER EEN MIT MEE 6 S 8 941 ERORICONBE Leste SER ES ORP enum ERE USE REDER diet ane sa esac USE RE SEES SEEREN 8 a2 Connec aid component mana El EEN Er 8 GES COo N eee eee ee PR E MSIE UM ee nen eee moe ee eee IUE 10 Installing the head end station sscsscsssscsssssssscssscssccsscssscsssescsssssssssscssseceseees 1 AN Remove front COVER acosubeqesuuoen tima desert N p uuu 11 AZ EMC reguladon ee ee ee ere dab dedico E 1 4 3 Mounting the head end station 12 installing d 8556lfe criosan ra kanton NEER E EATE NEEE EE CHOR REUS 13 Power SUBDP aedi e He onii ooreen e iNED ENEE
11. cription refers to one of the SAT IF input distributors The other SAT IF input distributors are connected in the same manner Connect outputs E and F of the input distributor fig 14 on the front of the head end station fig 2 4 to the corresponding inputs on the cassettes Using two reception levels factory settings e Connect inputs and D of the SAT IF input distributor fig 14 to the LNBs For this use cable terminals mounted in the openings 14 fig 15 A Terminate loop through output C fig 14 using the terminating re sistor supplied Using one reception level loop through operation e Connect input D of the SAT IF input distributor fig 14 to the LNB gt For this use a cable terminal mounted in one of the openings fig 15 Connect loop through output C to input B using a HF cable made on site 7 3 Connecting HF output of the head end station Fig 15 e Connect the HF output of the hybrid amplifier 11 to the cable system gt For this use a cable terminal mounted in one of the openings fig 15 7 4 Mains connection N To maintain compliance with current EMC regulations electromagnetic compatibility it is necessary to route the power cord 17 through the sup plied ferrite sleeve 24 Mount the ferrite sleeve as near as possible to the housing of the head end station fig 16 o E AAAI YY h ea99000006 Fig 16 Open the ferri
12. d end station If the inner temperature of the head end sta tion exceeds the permissible temperature of 65 C when operating a message appears in the display instead of the standby menu This message contains the maximum measured temperature and the number of the head end station The display also supports dialogue guidance when programming the head end sta tion Use the buttons of the control unit to program the head end station You can also use the PSW 1000 software and the HRCU 8 management unit to program the head end station The RS 232 interface of the control unit enables you to use a PC or a note book and the BE Flash software to update the operating software of the control unit You can find the current operating software for the control unit the software BE Flash and the current assembly instructions on the website http www gss tv 3 Overview 3 1 Front cover Fig 1 1 Front cover 2 Lock 3 2 Connectors and components Front view side view type label d i 1 OC IP M _ _ P Fig 2 Cassette slots 1 12 Outputs of the SAT IF input distributors Openings for cable terminals HF measuring output 20 dB Control unit Locators for the front cover Type label CX CX eX View from below 00 DWD DW Si EURC ONE SS Ferrer LeeLee SNEEN TPP eT ee Te ertt TT TT ee nomm Seeee sees Sees eS Se iat te ee mA ig m ow Be
13. e the relevant VDE regulations If the power cord needs to be replaced only use an OEM power cord Only replace fuses with fuses of the same type and which also have the same cut off characteristics Earth the receiving system according to DIN EN 50083 1 60728 11 Before starting installation or service work disconnect the receiving sys tem from mains Do not perform installation and service work during thunderstorms Assembly installation and servicing must be carried out by an authorised electrician Install the head end station in a dry dust free environment in such a manner that it is protected from moisture fumes splashing water and dampness where it is protected from direct exposure to sunlight on a vibration free wall or floor construction not within the immediate vicinity of heat sources The head end station should only be installed in a room where the per missible ambient temperature range 20 C and 50 C can be main tained even during fluctuations in climatic conditions Ensure that the head end station is adequately ventilated Do not cover the ventilation openings Make sure there is a minimum space at wall mounting min 20 cm sideways above and below at mounting in a shelf cabinet min 20 cm sideways and above and min 1O cm behind To avoid too strong heating of the head end stations it is not admissible to mount them one upon the other without using thermic precautions e g permanently air recirc
14. end station to the requirements of the cable system STATION LEVEL LEVEL e Set the HF output level of the head end station using the DB buttons 0 6 db e Press the MODE button The Setting the consecutive number of the head end station STATION NUMBER menu is activated Setting the consecutive number of the head end station If several head end stations are used in a cable system the head end stations must get a consecutive number to identify them STATION NUMBER 004 Bg e Use the R E buttons to set the consecutive number e Press the SI button gt The Activating the modem connection SYSTEM MODEM menu is activated Activating the modem connection IF the head end station is to be remote controlled using the PSW 1000 configuration software and a modem connected to the head end station without HRCU 8 activate the modem mode in this menu ON 22745 SYSTEM MODEM OFF DB ON OFF e Using the B E buttons switch on the modem mode ON or if necessary switch it OFF If no modem is found NOT FOUND is displayed e Press the L S button The Setting the password SYSTEM SECURE menu is activated Setting the password In this menu the access to the software of the control unit and the cassettes can be refused SYSTEM SECURE PASSWORD 0000 KO Use the I I buttons to place the cursor under the digits to be
15. es D co o o o e e amp amp Fig SAT IF input distributors 9 Inputs of the SAT IF input distributors SAT IF loop through outputs HF output of the head end station Mains connector Distributor for LNB operating voltage Openings for cable terminals Earth connection terminal connection for potential equalisation Aeration openings CXXOOGOO Rear view 9 E 3 o o o I LJ 2 EJ B Ld iz EJ E o o o o o E c Li e 9 4 eee amp 3 0 00000000000000000000000 Aeration openings AD Cord grip of the mains connection cable Openings for wall mounting 3 3 Control unit IC display Control to set the contrast of the LC display 9 pin D SUB socket to update the operating software to connect the HRCU 8 management unit Control buttons control panel Operation display OV GGG 4 Installing the head end station 4 1 Remove front cover Fig 7 Unlock the lock 2 fig 7 e Slide the front cover 1 upwards and unhook it 4 2 EMC regulations To comply with the current EMC regulations it is necessary to connect the lines leading in and out of the head end station e g Cinch HF using stand ard cable terminals T Fig 8 e According to figure 8 insert the required number of standard cable terminals in the openings provided in t
16. he front of the head end station fig 2 5 page 8 Tighten the nuts on the cable terminals until the teeth on the lock washers have penetrated the exterior coating and a good connection is made be tween the housing and the cable terminals za 4 3 Mounting the head end station Install the head end station vibration free Avoid for example mounting the head end station onto a lift shaft or any other wall or floor construction that vibrates in a similar way To avoid too strong heating of the head end stations it is not admissible to mount them one upon the other without using thermic precautions e g permanently air recirculation heat deflectors etc s also chap 4 3 3 Ensure that the mounting area can support the weight of the head end station there is an adequate ventilation the permissible ambient temperature will be maintained the mounting position is dry and protected against splashing water 4 3 1 Wall mounting e Position the head end station so that the distance on either side is minimum 20 cm Ensure minimum 20 cm of free space below and above the head end station as well e Insert the included wall plugs 10 mm into the wall so that they correspond to the dimensions in the following illustration e0000000000000000000000 e00000000000000000000000 Fig 9 e Screw the included fastening screws 8 x 65 mm wood screws into the wall plugs and hang the head end station onto the screws
17. interface and the PC 9 pin D SUB socket 9 pin D SUB plug ll Fig 19 e Start the BE Flash software and update the software of the control unit 10 2 Updating the software via second control unit In this type of update the current version of the software in one control unit master is transferred to the control unit you want to update slave Removing master control unit e M i o c 4 Tu r PR e Switch off the head end station e Disconnect snap in hook 25 in the direction of arrow 1 fig 20 e Pull control unit 7 in the direction of arrow 2 on the bottom and discon nect from snap in hook 20 Programming slave control unit e Switch off the head end station of the slave control unit e Connect the 15 pin D SUB plug on the back of the master control unit to the RS 232 interface of the head end station s slave control unit via a connection cable made on site as follows 15 pin D SUB socket Master 9 pin D SUB plug Slave OMONDOAIBRWN ABRWNADOOONDABRWN ae Ce ne MEN Ce QUE S Fig 21 e Switch on the head end station Wait for the Update Mode message of the master control unit and press button UJ on this unit gt The software of the slave control unit is replaced by the master control unit s software e After the message Update Mode OK appears switch off the head end station e Remove the connection cable between the slave and master
18. must be disposed of at a desig nated collection facility At the end of its service life please take your device to one of these public collection facilities for proper disposal General information Meaning of the symbols used Important note AN Danger by electrical shock General note Performing works Scope of delivery 1 STC 1200 head end station without cassettes Ferrite sleeve CD assembly instructions 1 Brief assembly instructions Mounting material Available accessories For cassettes and accessories see website http www gss tv E 2 4 Technical data The requirements of the following EU directives are met 2006 95 EC 2004 108 EC The product fulfils the guidelines and standards for CE labelling General Cassette slots Admissible ambient temperature Dimensions W x H x D mm Weight fully equipped LNB operating voltage Other operating voltage Attenuation of shielding RS 232 socket SAT IF input distributor Data of one SAT IF input distributor Frequency range SAT IF inputs SAT IF loop through output SAT IF outputs Input output impedance Decoupling of the outputs Loss D gt E s fig 14 Loop through loss D gt Loss B gt E Total loss with loop through from D to E LNB operating voltage HF output collector Input frequency range Control range of each input Control range of each output Input output impedance 12 20
19. set for the password e Use the H H buttons to set the digits of the password wished Saving settings Press the NU button gt The settings are saved gt Via connection A you return to the Activating sys tem information menu item page 23 By pressing the ITS button you will be returned to the menu item System information control unit via without saving the programmed data page 24 28 11 3 1 Programming the head end station following excess temperature If the maximum permissible temperature for the head end station inner tempera ture is exceeded ATTENTION appears in the display instead of the BE Remote standby display In this operating state the menus for the cassettes and operating unit are locked To be able to access the menus for the cassettes and operating unit the soft ware needs to be unlocked N The cause of the excess temperature must be determined and the appropri ate corrective measures taken for the head end station to operate smoothly again e g additional ventilation In the ATTENTION menu the number of the particular head end station e g Temp 1 and the temperature e g 68 C are displayed G ATTENTION Temp 1 68 C e Press the MODE button gt The System information SYSTEM INFO menu is activated System information In this menu the inner temperature is displayed which activat ed the lock e g 68
20. te sleeve e Make a loop in the power cord and lay the loop inside the ferrite sleeve as shown in fig 17 Close the ferrite sleeve fig 18 Fig 18 e Connect the power cord of the head end station to the mains socket 8 Setting the contrast of the display e Adjust the contrast of the display using the controller 20 fig 6 page 10 The control panel at a glance Program the head end station using the buttons control panel on the control unit The two line display of the control unit then shows the menus The parameters and functions to be set are underlined Use the EXISDISI key to select the following main menu items System information Output level of the cassettes pT re Output level of the head end station mcm Number of the head end station Modem Password NI scrolls forward through the menus EE select parameters in the menus B E set values initiate actions M saves entries VIDEO B aB qu 18 10 Updating the software of the control unit 10 1 Updating software via PC The RS 232 interface of the control unit enables you to use a PC or a notebook and the BE Flash software to update the operating software of the control unit You can find the BE Flash software and the current operating software of the head end station s control unit at the website http www gss tv Use a one to one cable see fig 19 for circuit to connect the control unit s RS 232
21. the consecutive number of the head end station page 27 SYSTEM Station Nr A Ao v e Press the button gt The System information clock frequency SYSTEM INFO Clock submenu is activated DR o System information clock frequency This menu shows the clock frequency of the control unit The frequency can be 14 7 or 16 0 MHz v SYSTEM Clock INFO 16 0 MHz e Press the L S button The Setting the HF output level of the cassettes BOX LEVEL menu is activated gt Pressing the J button you return to the System information control unit SYSTEM INFO BErem menu page 24 Setting the HF output level of the cassettes This menu allows to select the cassettes one after the other and set their HF output levels BOX LEVEL Bx 1 ENIM Bx 1 Bx 12 LEVEL 0 dB D F o 25 dB e Select all cassettes one after the other using the B E but tons measure and note their HF output levels e Activate the cassettes with higher HF output levels using the B E buttons and equal their HF output levels to the value of the cassette with the lowest HF output level using the W E buttons O 25 dB e Press the SI button The Setting the HF output level of the head end sta tion STATION LEVEL menu is activated 26 Setting the HF output level of the head end station This menu allows to set the HF output level of the head
22. ulation heat deflectors etc Do not install the head end in cabinets or recesses which are not ventilated IF additional fans are to be used to circulate the air ensure that the system will be shut down disconnected from mains should any one of the fans fail Do not place any vessels containing liquids on the head end station Due to the risk of fires caused by lightning strikes we recommend that all me chanical parts e g distributor equipotential bonding rail etc be mounted on a non combustible base Wood panelling wooden beams plastic cov ered panels and plastic panels are all examples of combustible bases 542 2 1 2 2 2 3 e Avoid short circuits e Observe the relevant standards regulations and guidelines on the installation and operation of antenna systems e To ensure electromagnetic compatibility make sure all connections are tight and that the covers are screwed on securely e No liability is accepted for damage caused by faulty connections or inappropriate handling of the device e You can obtain additional information from the Planning handbook brochure which can be found on the website http www gss tv under the Service category Electronic devices should never be disposed of in the household rubbish In accordance with directive 2002 96 EC of the European Parliament and the European Council from January 27 2003 which addresses old elec tronic and electrical devices such devices
23. utors The power distributor fig 12 is supplied with power 18 V max 1 A via the V connection fig 11 The Y connections of the power distributor fig 12 are for providing power for the LNBs connected via the SAT IF input distributors N The total output current for all LNBs connected must not exceed 1 A rel 6 2 Hybrid amplifier Via connector X fig 11 the hybrid amplifier is supplied with power 24 V 6 3 Connecting peripheral devices Via connector W fig 11 peripheral devices can supplied with power 12 V max A N Connect peripheral devices via external fuses only 14 7 Connecting the head end station 7 1 Potential equalisation Earth the SAT receiver system in accordance with DIN EN 50083 1 60728 11 and VDE 0855 e Put the earth wire Cu 2 4 mm into the hole G fig 13 of the earth connec tion terminal 15 fig 4 and fasten the earth wire with the screw H securely e Connect the earth connection terminal to a potential equalisation rail supplied by customer using the earth wire Housing Fig 13 7 2 Connecting the SAT IF input distributor 11 1 n fi a 7 2 1 Overview pasa ara Fig 14 A LNB power connection D Input 1 fig 3 9 Input 2 fig 3 9 E Outputs of input 1 D Loop through output of Outputs of input 2 B P g P P P input 1 D with terminating resistor 7 2 2 Connecting SAT IF inputs The following des
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