KARIN Manual Output unit

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1 Hirschmann ü KARIN Manual Output unit Einführung PILOT RF REMOTE SUPPLY 50V AC RF -20 db RF -20 db PILOT OUT SWEEP TRANSM. 0dB RF -30dB. 75 RF -20dB REVERSE CHANNEL -12dB 50 Hirschmann OUTPUT AMPLIFIER Hirschmann Hirschmann Hirschmann PILOT OUTPUT GENERATOR COMBINER COMBINER AMPLIFIER version: 2.0 print: May 97/BH_1100

2 Index Index Introduction General Notes Technical modifications Guarantee and Warranty Copyright Explanation of the warning and note symbols Operation Functional description General Combiner amplifier SVE Output combiner ASF Output amplifier AV Pilot generator PG Interfaces Module frontside combiner amplifier SVE Module frontside output combiner ASF Module frontside output amplifier AV Module frontside pilot generator PG Pilot connector Alarm connector DC OUT connector Putting into operation Putting into operation of the main frames Putting into operation of the output unit Help with problems Changes Output unit ü

3 Index Service Warning Note Adjustments Functional check Handling Equipment Customer Service Data sheets ü Output unit 0-3

4 Index 0-4 Output unit ü

5 Introduction Introduction ü Output unit 1-1

6 Introduction General Notes ATTENTION: Keep the manual handy all the time. Technical modifications The information contained in this manual is subject to change at any time. Copyright This manual contains information protected by copyright. All rights reserved. No part of this manual may be photocopied, otherwise reproduced or translated into another language without the prior written consent of Hirschmann. Explanation of warning and note symbols WARNING: Indicates that ignorance of the cautionary measures listed may result in death or serious personal injury. CAUTION: Indicates that ignorance of the cautionary measures listed may result in equipment damage. NOTE: Useful tips and information on practical application. 1-2 Output unit ü

7 Operation ü Output unit 2-1

8 Functional description General In the functional group output unit the output signals of the following modules are combined, amplified and fed into the network: l RF combiners l Sound combiners l Data modem l Pilot generator Combiner SF 5.1/RF output unit Combiner amplifier SVE 5.. PG 501 PG 501 Pilot Pilot 1 2 Output amplifier AV 5.. Cable TV Sound broadcasting Combiner SF 501/T12 Combiner SF 501/T4 Sound AM-TV Output combiner ASF 5.1 Remote supply Output amplifier AV 5.. Cable Data modem DM 501 Remote supply Output unit KARIN The output unit consists of the modules: l Combiner amplifier SVE 5.. l Output combiner ASF 5.1, l Output amplifier AV 5.. l Pilot generator PG Output unit ü

9 Arrangement The two main frames "central functions 1" and "central functions 2" are equipped with the modules of the output unit. The output combiner, two output amplifiers and two pilot generators are located in the main frame "central functions 1" (BGT ZF1 501). The combiner amplifier is located in the main frame "central functions 2" (BGT ZF2 501). Combiner amplifier IF amplifier IF amplifier Reserve Antenna feeding Antenna feeding SAT splitter SAT splitter SAT splitter SAT splitter SAT splitter Main frame main function 2 Output amplifier Output amplifier Data modem Data modem Pilot generator Pilot generator SAT splitter SAT splitter SAT splitter Output combiner Main frame main function 1 Places of the modules The rear panel assembly of the relevant main frame, located directly behind the modules is the electrical link between the modules. The modules are slid from the front onto the guide rails and into the main frame and are electrically connected with the rear panel assembly by way of a plug in connection located at the back of the module. All input are located at the rear side of the main frame. The data processors are fixed at the rear side of the main frame. ü Output unit 2-3

10 Interconnection RC/0A1 RC/0A2 RS 485 REF IN/P1 REF IN/P2 FM/OC RF-C2..4/OC RF-C1/OC MAIN FRAME BGT ZF1 501 DATA PROCESSOR 3 ASSY REAR PANEL OUTPUT AMPLIFIER 1 OUTPUT AMPLIFIER 2 DATA MODEM 1 DATA MODEM 2 PILOT GEN. 1 PILOT GEN. 2 SAT- SPLITTER 1-3 OUTPUT COMBINER RF 1-6 RF-OUT RF RF RS 485 MAIN FRAME BGT ZF2 501 DATA PROCESSOR 6 ASSY REAR PANEL COMBINER AMPLIFIER IF-AMPL. 1 IF-AMPL. 2 ANTENNA FEEDING 1 ANTENNA FEEDING 2 SAT- SPLITTER 1 SAT- SPLITTER 5 Interconnection of the output unit 2-4 Output unit ü

11 Combiner amplifier SVE 5.. The 6-way combiner amplifier is needed, when more than 24 TV-channels are transmitted. It combines the outputs of 6 RF combiners with a gain of 0 db or 3 db depending on the type.. SVE 502 (606 MHz) l 4 inputs with a gain of 0 db l 2 inputs with a gain of 3 db SVE 551 (862 MHz) and SVE 503 (606 MHz) l 6 inputs with a gain of 0 db E.g. MAC channels can be fed in at inputs with 3 db gain. CAUTION: Not used in- and outputs have to be terminated with 50 ohm! Block diagram see data sheet Output combiner ASF 5.1 The TV- and FM-channels as well as the pilots and the data signals are connected with the broadband passive output combiner. The output combiner has the following in- and outputs: l l l l l 4 TV inputs 1 FM input 2 pilot inputs 1 data input 2 equivalent RF outputs On the front panel there is one each 50 ohm and 75 ohm output. CAUTION: Not used in- and outputs have to be terminated with 50 ohm! Block diagram see data sheet ü Output unit 2-5

12 Output amplifier AV 5.. Block diagram The output amplifier amplifies the signal of the output combiner and feeds it to the distribution network. It includes a reverse channel branch for the decoupling of the reverse channel and a power inserter (50V/6A) for the supply of the trunk amplifiers. The remote voltage is generated in the modules remote supply and led to the output amplifier through the rear panel assembly. The transformation of the system-internal 50 ohm impedance to 75 ohm is also effected in the output amplifier. On the front panel there are the following in- and outputs (75 ohm): l RF output l 2 RF monitoring outputs l trunk wobbler input l reverse channel monitoring output OUTPUT AMPLIFIER AV 5.. RF -20 db RF -20 db RF-input SWEEP TRANSM. 50 O 75 O RF-output Remote Supply REVERSE CHANNEL I/O 50 O 75 O Reverse channel Data PC Output amplifier 2-6 Output unit ü

13 Pilot generator PG 501 The pilot generator is producing a pilot to control the trunk amplifier. Frequency range Pilot filter Stabilize the pilot frequency Output level LED "PILOT" The frequency can be tuned from MHz in 5 khz steps with hook-switches located on the board. Two plug-in pilot filters, that have to be adjusted to the pilot frequency are supressing broadband noise. To stabilize the pilot frequency, the pilot generator can be locked to an external 1 MHz reference frequency (e.g. standard frequency). The output level of the pilot may be tuned in the range of dbm. The level can be changed by ±2 dbm with the potentiometer "PILOT". If this is not sufficient, the output level may be changed with switches, located on the board. The LED "PILOT" lights up, if the output signal is present. Additionally the information, if the output signal is present is available through the report line "PILOT PRES." at the rear panel. "PILOT OFF" Substitution switch The output signal can be switched off through the report line "PILOT OFF". With two pilot generators a substitution switch easily can be realized by leading the report line "PILOT PRES." of the operating unit to the control line "PILOT OFF" of the spare unit. Block diagram PILOTGENERATOR PG 501 PILOT OUT Reference input Synthesizer db RF OUT I/O PC PILOT OFF PILOT OUT PILOT PILOT PRES. Pilot generator ü Output unit 2-7

14 Interfaces Module frontside combiner amplifier SVE 5.. Lights up in the event of module fault (red), see data sheet 1200 RF monitoring output, 50 ohm RF -20dB. Hirschmann COMBINER AMPLIFIER Module frontside output combiner ASF 5.1 RF RF monitoring output, 75 ohm 75 RF monitoring output, 50 ohm 50 Hirschmann OUTPUT COMBINER 2-8 Output unit ü

15 Module frontside output amplifier AV 5.. Lights up in the event of a module fault (red), see data sheet 1100 RF REMOTE SUPPLY 50V AC. Hirschmann RF -20dB. RF -20dB. SWEEP TRANSM. 0 db. REVERSE CHANNEL -12dB. RF output, 75 ohm RF monitoring outputs, 75 ohm trunk wobbler input, 75 ohm reverse channel monitoring output, 75 ohm OUTPUT AMPLIFIER Module frontside pilot generator PG 501 Lights up in the event of a module fault (red), see data sheet 1190 PILOT Lights up if output signal is present PILOT OUT RF -30dB. Potentiometer for the adjustment of the output-level (± 2 db) Monitoring output for the pilot, 50 ohm Hirschmann PILOT GENERATOR ü Output unit 2-9

16 Pilot connector Through this connector the pilot generator can be monitored and controlled. The pilot connector is located on the rear panel assembly of the main frame "central functions 1". Pin assignment Pin Designation Remark Level C/R* 1 PILOT OFF Switch off pilot output V C 2 0V Ground 0 V 3 PILOT PRES Pilot present V R * C... Control, R... Report Assignment Module Designation Pilot generator 1 ST 46 Pilot generator 2 ST 47 Alarm connector In case of a breakdown in the headend two relays in the data modem switch over. The floating switch-overs of these relays are led to the alarm connectors 1 and 2, which are located on the rear panel assembly of the main frame "central functions 1". Pin assignment Pin Designation Remark 1 W1 / W2 Root 2 AK1 / AK2 Working contact 3 RK1 / RK2 Rest contact Assignment Module Alarm connector Designation Data modem 1 1 ST 43 2 ST 42 Data modem 2 1 ST 45 2 ST Output unit ü

17 DC OUT connector Through the DC OUT connector each requested additional unit can be supplied with ± 12 V. The DC OUT connector is located on the rear panel assembly of the main frame "central functions 1" and "central functions 2". Pin assignment Pin Designation Max. power 1 0 V V 1 A V 1 A Assignment Main frame Connector BGT ZF1 501 ST 48 BGT ZF2 501 ST 49 Maximum power input of the main frames Main frame BGT ZF1 501 BGT ZF V -12 V +24 V +12 V -12 V +24 V Max. power input 1,9 A 0,1 A 3,4 A 2,6 A 0,3 A 3,8 A ü Output unit 2-11

18 Putting into operation CAUTION: - Only trained staff are permitted to put the main frames and modules into operation. - If a module is steamed up after unpacking, please allow it to become acclimated for at least one hour before sliding it into the main frame. NOTE: For putting into operation please see the last two pages of this manuel ( and ) Putting into operation of the main frames The following instructions are valid for the main frame "central functions 1" and "central functions 2". 1. Fix the data processor at the rear side of the main frame. 2. Connect the data processor to the connector ST 41 on the rear panel assembly. 3. Flip down the connector plate. 4. Check the wiring at the rear side. 5. Flip up the connector plate and fix it into place. 6. Slide the main frame from the front into the rack, taking care, that the connector plate is on the right hand side. 7. Fix the main frame onto the rack with the two screws provided. 8. Connect the RF wiring to the connector plate. 9. Connect the data processor to the data-bus. Fix the connector using the sliding plate (refer to the rack instruction manual). 10. Connect the supply voltage to the connector ST 40 on the rear panel assembly Output unit ü

19 Putting into operation of the output unit Requirements The modules are tuned correctly. The instructions for this are in Chapter "Service". Putting into operation 1. Remove the red protective strip from the rear side of the module. Keep them for re-use when transporting or storing the modules. 2. Slide the modules into the place stipulated for them in the main frame. You can see the correct place from the labelling on the main frame (see and ). 3. Fix the modules with the 2 or 4 screws resp. at the front panel on the main frame. 4. Connect the RF wiring on the front side of the output amplifier. 5. Check, if no red LED lights up. If one LED lights up, please see "help with problems". 6. Check, if the green LED "PILOT" lights up. If not - see "help with problems". 7. Connect a suitable measuring instrument (e.g. PME 350) to the monitoring output "RF" of the output combiner. 8. Tune the output level of the pilot with the potentiometer "PILOT OUT". Is the tuning range not sufficient, the output level additionally can be changed by means of two hook-switches (S22, S23) on the assembly (see data sheet 1190). 9. Tune the output level at the up converters, FM modulators and FM converters to the levels necessary for this system. CAUTION: Not used in- and outputs of the combining amplifiers and of the output combiner must be terminated with 50 ohm. ü Output unit 2-13

20 Help with problems Combiner amplifier Symptom Possible cause Remedy Red LED is lit up Error in module, see data sheet Check fuses - Replace module No output signal No input signal is present Check the wiring No supply voltage Check the operating voltage supply Output combiner Symptom Possible cause Remedy No output signal No input signal is present Check the wiring Error in module Replace module Not all fed in channels are present in the output signal Error in wiring Check the wiring Output amplifier Symptom Possible cause Remedy Red LED is lit up Error in module, see data sheet Check fuses - Replace modules No output signal No input signal is present Check the wiring No supply voltage Check the operating voltage supply Pilot generator Symptom Possible cause Remedy Red LED is lit up Error in module, see data sheet Check fuses - Replace module No LED is lit up Pilot output is switched off Check the wiring of the pilot connector No voltage supply Check the operating voltage supply 2-14 Output unit ü

21 Changes (no changes at this functional group) ü Output unit 2-15

22 2-16 Output unit ü

23 Service Service ü Output unit 3-1

24 Service Warning Note WARNING: Only trained staff are permitted to service the units. Adjustments The factory adjustment of the modules can be found on the corresponding datasheet. To adjust, open the module on the right side as seen from the front - for detailed information see data sheet. Functional check Check the module function with the PC monitoring software. Handling Storage Transport Store the KARIN modules in their original packaging. Consider this: l storage temperature o C l relative humidity % Use the red protective strip for module transport. 3-2 Output unit ü

25 Service Equipment Combiner amplifier SVE Combiner amplifier SVE Combiner amplifier SVE Output combiner ASF Output combiner ASF Output amplifier AV Output amplifier AV Output amplifier AV Main frame central functions 1 BGT-ZF Main frame central functions 2 BGT-ZF Data processor DP Pilot generator PG Rear panel assy central functions 1 PL-RW ZF Rear panel assy central functions 2 PL-RW ZF ü Output unit 3-3

26 Service Customer Service Austria Richard Hirschmann Ges.m.b.H. Tel. +43-(0)5522/307 0 Oberer Paspelsweg 6-8 FAX +43-(0)5522/ A-6830 RANKWEIL-BREDERIS France Richard Hirschmann Tel. +33-(0)1/ Electronique S.A. FAX +33-(0)1/ , rue du Fer â Cheval, Z.I. F SARCELLES Germany Richard Hirschmann GmbH & Co Tel. +49-(0)7127/14 0 Stuttgarter Str FAX +49-(0)7127/ D NECKARTENZLINGEN Great Britain Electronics UK Ltd. Tel. +44-(0)1842/ Burrell Way FAX +44-(0)1842/ THETFORD, NORFOLK IP24 3RW Hungary Hirschmann-BHG Tel. +36-(0)1/ Rokolya u FAX +36-(0)1/ H-1131 BUDAPEST Netherlands Richard Hirschmann Tel. +31-(0)294/ Electronica Nederland B.V. FAX +31-(0)294/ Postbus 92 NL-1380 AB WEESP Spain Hirschmann Espania S.A. Tel. +34-(0)1/ Calle Albala 7 FAX +34-(0)1/ E MADRID USA Richard Hirschmann of America Inc. Industrial Row Tel / P-O.Box 229 FAX / RIVERDALE, N.J Output unit ü

27 Service Data sheets Ord. description Sheet Output amplifier AV Output amplifier AV Output combiner ASF Output combiner ASF Data processor DP Pilot generator PG Combiner amplifier SVE Combiner amplifier SVE Main frame BGT-ZF Main frame BGT-ZF Date 00 / Date Rep. Ord. description EEN Data processor DP 502 Ord. number Sheet /4 ü Output unit 3-5

28 Service 3-6 Output unit ü

KARIN Manual FM demodulator

Hirschmann ü KARIN Manual FM demodulator Einführun g RF MUTE. RF -6dB. AF Hirschmann FM DEMODULATOR version: 1.0 print: May 97/BH_1155 Index Index Introduction General Notes...................................................