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C-Cor Flexnet LE Manual - eDGe Broadband Solutions

1. 4 19 Figure 4 6 Regulator 5 4 21 Figure 4 7 E7 Motherboard 4 22 Chapter 5 Troubleshooting Test Procedures 5 1 Figure5 1 Simplified Forward Path Block Diagram 5 3 Figure 5 2 Troubleshooting Flow Diagram 1 0 2 5 5 Figure 5 3 Troubleshooting Flow Diagram 2 2 5 6 Chapter 6 Maintenance 6 1 Appendix A Reference Tables A 1 Appendix B Functional Block Diagrams B 1 Figure E7 Functional Block Diagram B 2 Figure 2 7 862MHZ 117V Functional Block Diagram B 3 Figure E629 Functional Block Diagram B 4 Appendix C FlexNet amp 700 Series Line Extender Amplifier Data Sheet C 1 MX0507 RevE MX0507 RevE Chapter 1 Introduction This chapter includes an overview of the E7 FlexNet line extender amplifier characteristics warranty information and suggested tools and materials reguired when working with the line extender Section 1 1 Conventions page 1 1 Section 1 2 Statements of Compliance page 1 2 Section 1 3 Warranty page 1 2 Section 1 4 Overview page 1 4 Section 1 5 Reguired Eguipment Tools and Supplies page 1 10 Section 1 6 Related Documents page 1 11 1 1 Conventions Labels printed on the amplifier f
2. Bg OCE required Figure 3 1 Line Extender Assemblies 0507 Rev Housing Instructions 3 3 3 3 The housing be mounted with or without the RF module installed Cable attachment may be easier without a module installed Refer to Section 6 3 beginning with Step 4 for instructions on installing an RF module If desired install plug in accessories Installing accessories at this point is often more convenient than after the housing is mounted Accessory values can be found on system maps Close the housing Refer to Section 3 5 Closing and Tightening for instructions Housing Mounting Note Use Extension Mounting Brackets EMBs if additional clearance is required between the unit and the strand or structure This clearance may be needed to install the cabling or to provide access to the testpoints includes additional mounting hardware Y2 inch long bolt split lock washer nut Contact C COR net or refer to the C COR net Products and Services price list for ordering information The following sizes are available m 3 2 inch 8 cm EMB P N 172187 01 m inch 15 EMB P N 172187 03 Note EMBs are not included with the unit but may be purchased separately Each EMB If using EMBs attach the EMB to the housing Back or Top Strand Clamp Bosses see Figure 3 2 using the inch long bolt and split lock washer provided with the EMB as
3. poq ov lt 812081 JW pourquio 100g pue speusts TY ale sarjddns HH HA s1orrdure 1195924 jou vA LIT juasaid jou Aiddng mod lt lt on oy vC 8 gt T 3104 03 INL od aovisuaini d 93 Figure E7 Functional Block Diagram MX0507 RevE Functional Block Diagrams B 2 351 pexoo g OV AP S7 1 K10ssooov ur 3njd amp 4 s i 1 arene AJUD OV lt Au sjeusig JA 4 pue 180816 qo atium JOMO OVA LII 991 ydwy 03 SIINI SSEJ MOT 3SH3A3H lt Ajddng ISIM K ddng lt GA 7 9 9 194 Togidury x 03 03 IN JI iari 8 JOVISH3INI d QquvMHOd QHVMHOd SNIONV IVa qauvwdod Sz Figure 2 E7 862MHZ 117 V Functional Block Diagram B 3 Functional Block Diagrams MX0507 RevE INA ons 03 3LISTOJUJ 2591 pex org OV HP S7 4 Tmod 9q e lt Auo
4. 46 39 260 26 440 44 42 42 E729L xx5E1xx5 30dB 16 11 46 39 17 17 37 37 40 40 E729L NASEIxx 31dB 15 10 46 39 17 17 37 37 40 40 2090XW uononponu LL Table 1 4 E700 Series Line Extender Inputs and Outputs cont d Model Information Forward Reverse Minimum Inputs Outputs Minimum Outputs dBmV dBmV Inputs dBmV dBmV Model Oper 862 750 550 250 54 862 750 550 250 54 dBmV dBmV dBmV dBmV Number ational MHz MHz MHz MHz MHz MHz MHz MHz MHz MHz 5MHz MHz 5MHz max MHz E75DJRLO5F2xx 32dB 14 14 14 14 46 45 43 34 17 17 37 37 42 42 E77DJ NAxE6Dx 35dB 14 5 13 12 11 6 5 49 5 47 5 46 44 35 170 17 370 37 42 42 Pt A Refer to the specification sheet for more information about the specific amplifier in guestion The outputs reflect unadjusted system tilts System personnel should consider their system tilt to arrive at actual outputs 54MHz unless shown otherwise in the 54 MHz column See also E729B NA4A1 See also E729L NASEI Table 1 5 7 FlexNet 700 Series Line Extender Part Number Designators Model Options Part Designator Options Number E7 2 C J P A12 C 6 D 1 E FlexNet amp 700 Series PHD Line Extender Amplifier Series 30 dB PHD M 33 dB PHD pacing 750MHz Bandwidth 42 54 MHz i
5. Chapter 3 Housing Instructions Table 3 1 Mounting Bolt 1 Chapter 4 Configuration Table 4 1 Table 4 2 Table 4 3 Table 4 4 Table 4 5 Fusing Power Passing Considerations AC Testpoints e Sole ne Re ES AC Test DC Testpoints and Test Active Reverse Upgrade Chapter 5 Troubleshooting Test Procedures Chapter 6 Maintenance Appendix A Reference Tables Table A 1 Table A 2 Table A 3 Table A 5 Table A 4 Table A 6 Table A 7 Table A 9 Table A 8 SEQ 862 Series Cable Egualizers SCS 862 Series Cable Simulators SEQ 750 Series Cable Egualizers SEQ 625 Series Cable Egualizers SCS 750 Series Cable Simulators MEQ 550 and 550 Series Cable Equalizers MCS 550 Series Cable 55 and 55 Series Cable Equalizers MEQ 65 and MEQT 65 Series Cable Equalizers Table A 10 MEQ 42 and MEQT 42 Series Cable Egualizers Table A 11 SEQPB Series Cable Attenuators PADs Table A 12 SPB Series Cable Attenuators PADs Appendix Functional Block Diagrams Appendix C FlexNet amp 700 Series Line Extender Amplifier Data Sheet MX0507 RevE 1
6. Replace the power supply 1 Attach the ground lead to the amplifier housing 4 2 Calculating Balancing Carrier Levels for Linear Output Tilt Operation Typically only the Forward High Balancing Carrier level will need to be calculated if it is not provided by the system manager other balancing carrier levels are near enough to the signal levels of the bandedge carriers that bandedge levels may be used for balancing Perform this calculation only when the Forward High Balancing Carrier is not at the high bandedge frequency This calculation method can speed the process of balancing and needs to be done only once for all similar amplifiers within a cascade 1 Obtain a copy of the Amplifier Data Sheet from the system manager If not available copy the sample located in Appendix C 2 Calculate the Forward High Balancing Carrier Level using the following equation MX0507 RevE L L Lc Fy F Fo F b Le Forward High Balancing Carrier level dBmV Ly System Output Level at the High Bandedge Frequency dBmV System Output Level at the Low Bandedge Frequency dBmV System High Bandedge Frequency MHz F System Low Bandedge Frequency MHz F Forward High Balancing Carrier frequency MHz Configuration 4 5 3 Copy the Forward High Balancing Carrier level to the appropriate box in the Map Signal Information section of the Amplifier Data Sheet 4 3 Temperature Correction Note Tempera
7. reverse balancing 4 13 active reverse upgrade kits 4 17 installation kits for passive reverse 4 18 single person reverse balancing procedure 4 14 two person reverse balancing procedure 4 15 reverse configurations 1 8 RF module characteristics 1 3 identification 2 2 2 6 replacement 6 2 S SCS 750 series cable simulators A 6 SCS 862 series cable simulators A 4 SEQ 625 series cable equalizers A 6 SEQ 750 series cable equalizers A 5 SEQ 862 series cable equalizers A 3 SEQPB series cable attenuators PADs A 10 SPB series cable attenuators PADs A 11 MX0507 RevE temperature correction 4 6 tools reguired 1 9 troubleshooting 5 1 flow diagrams 5 5 5 6 foward path field testing 5 2 guick forward outage check 5 2 return path field testing 5 3 W warnings See document conventions warranty 1 2 MX0507 RevE 1 3 1 4 MX0507 RevE Table of Contents Chapter 1 Introduction Chapter 2 Physical Identification Chapter 3 Housing Instructions Chapter 4 Configuration Chapter 5 Troubleshooting Test Procedures Chapter 6 Maintenance Appendix A Reference Tables Appendix B Functional Block Diagrams Appendix C FlexNet 700 Series Line Extender Amplifier Data Sheet World Headquarters 60 Decibel Road I State College PA 16801 7580 USA C COR Tel 800 233 2267 1 814 238 2461 Fax 1 814 238 4065 www c cor net European Office Canadian Office 10 265 981 Mountview Court Oshawa
8. 1301 AG Almere Ontario L1K 2M1 Canada The Netherlands Tel 905 427 0366 Fax 905 428 0927 Tel 31 36 5461111 Fax 31 36 5364255 800 427 2559 Toll free for Canadian call only
9. 10 1 116 12 9 143 15 4 SCS 750 14 1 1 1 6 1 7 5 7 82 98 113 128 141 11 3 129 144 15 9 17 2 SCS 750 15 1 1 1 6 1 7 58 87 104 12 0 136 15 0 12 1 138 15 4 17 0 184 Passband Flatness 0 6 dB P V Document number 600647 Revision B Return Loss I O 18 16 dB Table A 5 SEQ 625 Series Cable Equalizers dB of cable Insertion Loss in dB at Frequency MHz equalized at Model Number 54 70 80 222 350 450 550 600 625 ighestfrequency SEQ 625 02 1 9 1 8 1 8 1 5 1 4 1 2 1 1 1 0 1 0 1 3 SEQ 625 03 2 9 2 8 2 7 2 1 17 1 4 1 2 1 1 1 0 2 7 SEQ 625 04 3 8 3 7 3 6 2 7 2 1 1 7 1 3 1 1 1 0 4 0 SEQ 625 05 4 8 4 6 4 5 3 4 2 5 1 9 1 4 1 1 1 0 5 4 SEQ 625 06 5 8 5 5 5 3 3 6 2 8 2 1 1 5 1 1 1 0 6 7 SEQ 625 07 6 8 6 4 6 2 4 4 3 2 2 3 1 5 1 2 1 0 8 0 SEQ 625 08 7 8 7 4 7 2 5 1 3 5 2 5 1 6 1 2 1 0 9 4 SEQ 625 09 8 8 8 4 8 1 5 6 3 9 2 8 1 7 1 2 1 0 10 7 SEQ 625 10 9 8 9 3 8 9 6 1 4 3 3 0 1 8 1 3 1 0 12 1 SEQ 625 11 10 7 10 2 10 0 6 9 4 6 3 2 1 9 1 3 1 0 13 4 SEQ 625 12 11 6 11 0 10 6 7 3 5 0 3 4 2 0 1 3 1 0 14 7 SEQ 625 13 12 7 12 1 11 7 8 2 5 4 3 6 2 1 1 4 1 0 16 1 SEQ 625 14 13 9 13 2 12 8 8 8 5 7 3 9 2 2 1 4 1 0 17 4 SEQ 625 15 14 6 13 8 13 4 9 1 6 1 4 1 2 3 1 4 1 0 18 8 SEQ 625 16 15 7 14 9 14 5 10 0 6 4 4 3 2 4 1 4 1 0 20 1 SEQ 625 17 16 7 15 9 15 4 10 4 6 8 4 5 2 5 1 5 1 0 21 4 SEQ 625 18 17 5 16 6 16 1 10 8 7 2 4 7 2 5 1 5 1 0 22 8 SEQ 625 19 18 5 17 5 17 0 11 5 7 5 5 0 2 6 1 5 1 0 24 1 Passband Flatness 0 4dB P V Document number 600911 Revision B Re
10. Headend Line Extender A device usually rack Ahand held sweep device The hand held unit receives mounted at the headend transmits a signal to the the data from the headend unit analyzes the incoming signal and headend through the reverse and displays a trace of the signal transmits the results back to the path of the amplifier being as it would appear at the headend head held unit balanced Figure 4 2 Typical Configuration of Single Person Reverse Balancing Equipment 4 14 Configuration MX0507 RevE 4 5 2 Two Person Reverse Balancing Procedure active components Do not use signal levels greater than 30dBmV at the hybrid CAUTION RF signal levels greater than 30dBmV at the hybrid can damage amplifier 30dBmV 90dBuV Note The two person method of reverse balancing requires two technicians communicating between two successive amplifier locations Balancing signals are injected into a forward path output testpoint of the Balancing Amplifier and measured at the reverse input testpoint of the Measuring Amplifier Note FlexNet 700 Series amplifier testpoints are 25dB referenced to the associated port input or output level Stickers on the amplifier housing indicate testpoint value Note C COR net provides a plug in terminator SPB 99 in the reverse path to prevent a buildup of noise that can be transmitted through the reverse path The reverse path is not active until the plug in terminator is removed and str
11. 1 E7 Line Extender w H E Power Supply 2 2 Physical Identification MX0507 RevE MODUS e MODULE HOLD DOWN HOLD DOWN FORWARD EQ EQ Per net D LINE EXTENDER FORWARD 2 25dB THRU REV FORWARD FUSE 5 SPACING BALANCING f Ip VOLTAGE SERO MAIN FUSE ALG PILOT MHz e e ALC SENSITIVITY REVERSI PAD ALC D 19 1 REVERSE MODULE HOLD TP 1 DOWN A e bo re Coe e NS 2 Y 7 DE zop SELECT 4 6 lt 15 dB i REVERSE a 2 24 4 i MODULE ro REVERSE HOLD DOWN B TP i MX0507 RevE w o TLC 22 w TLC Figure 2 2 E7 Line Extender w Linear Power Supply Physical Identification 2 3 X KKK KKK KKK X X0 90050 4 2 e B pt e 2S x X X 5255525 5 525252555555 SSIES OOOO KOK HOOK KKK OOK KK KOKO KKK gt lt Sc 000 5252 S 2 On 2 X x SSSI IO IO IK IO III III OI OI 507 Figure 2 3 E7 Line Extender w 117 VAC Linear Power Supply 2 4 Physical Identification MX0507 RevE et 4 LINE EXTENDER MODEL Figure 2 4 E629 Line Extender MX050
12. 2 through 5 When all cabling is disconnected loosen the attaching bolts that secure the housing to the strand or remove bolts for housings mounted to EMBs a pedestal or a wall Install the replacement housing in accordance with installation procedures given in Section 3 3 Install the RF module and power supply as described in Sections 6 3 and 6 4 Maintenance MX0507 RevE Appendix Reference Tables This section presents product tables that support the balancing procedures of Sections 4 4 and 4 5 Section A 1 Use Of Accessory Tables page 1 Section A 2 Installing Plug in Accessories page A 2 Section Accessory Tables page A 3 A 1 Use Of Accessory Tables The following sections describe two methods for using the Accessory Tables to select the correct values needed to balance an amplifier The procedure given in Section A 1 1 takes into account cable losses and the internal equalization of the amplifier The procedure outlined in Section A 1 2 assumes prior calculation of the Equalization Value as defined in the Forward Balancing procedure A 1 1 Using the dB of cable equalized at highest frequency Column To use the of cable equalized at highest frequency for cable equalizers and of cable simulated for cable simulators columns of the Accessory Tables the amount of factory installed alignment of the amplifier if any must be known This information is found on the Amplifier Specificat
13. 3 4 0 1 0 4 6 12 6 15 0 15 8 17 7 21 0 MEQ 42 4 5 0 1 0 6 1 16 7 19 4 20 7 23 0 27 0 MEQ 42 5 6 0 1 0 7 6 20 4 23 8 25 4 28 3 33 0 MEQ 42 6 7 0 1 0 9 1 24 6 29 0 30 4 34 0 39 6 MEQ 42 7 8 0 1 0 10 6 27 0 31 5 33 0 36 4 45 5 MEQT 42 2 3 6 2 5 3 2 9 0 10 5 11 2 12 5 14 9 MEQT 42 3 5 6 2 5 4 7 13 0 15 2 16 2 18 1 21 5 MEQT 42 4 6 8 2 5 6 5 18 0 21 0 22 4 25 0 29 8 MEAT 42 5 8 4 2 5 9 0 25 0 29 2 31 1 34 7 41 4 42 6 8 7 2 5 9 4 26 0 30 4 32 4 36 1 431 42 7 10 1 2 5 11 5 32 0 37 4 39 8 44 5 53 0 Passband Flatness 0 2dB P V MEG 42 Document number 600540 Revision C 0 3dB P V MEAT 42 Document number 600595 Revision D Return Loss I O 18 16 dB MEQ 33 and MEQT 33 Series Cable Egualizers Insertion Loss in dB dB of cable equalized at at Frequency MHz Model Number 5 33 33 300 400 450 550 750 MEQ 33 2 2 8 1 0 2 2 7 0 8 2 8 7 9 7 11 6 MEQ 33 3 3 1 1 0 3 5 11 0 12 8 13 7 15 3 18 2 MEQ 33 4 3 8 1 0 4 5 14 0 16 4 17 4 19 4 23 2 MEQ 33 5 5 1 1 0 6 7 21 0 24 5 26 1 29 2 34 8 MEQ 33 6 6 5 1 0 8 9 28 0 29 5 34 8 38 7 46 4 MEQ 33 7 7 5 1 0 10 5 33 0 38 5 41 0 45 8 54 7 MEQT 33 02 4 7 2 5 3 5 11 0 12 8 13 7 15 3 18 2 MEQT 33 03 5 3 2 5 4 5 14 0 16 4 17 4 19 4 23 2 MEQT 33 04 6 6 2 5 6 7 21 0 24 5 26 1 29 2 34 8 MEQT 33 05 7 8 2 5 8 9 28 0 29 5 34 8 38 9 46 4 MEQT 33 06 9 0 2 5 10 5 33 0 38 5 41 0 45 8 54 7 MEQT 33 07 9 6 2 5 11 5 36 0 42 0 44 8 50 0 59 6 Passband Flatness 0 2 dB peak to valley MEQ 33 Document number 600598 R
14. 4 SCS 862 14 1 0 1 6 1 9 5 5 100 129 134 14 0 93 115 129 154 160 166 SCS 862 15 1 0 1 7 2 0 5 9 106 13 7 14 3 15 0 10 0 124 130 166 17 3 17 9 Passband Flatness 0 4 dB P V 2 through 13 0 6 dB P V 14 and 15 Document number 600662 Revision B Return Loss 18 16 dB 2 through 13 16 16 dB 14 and 15 4 Reference Tables MX0507 RevE Table SEG 750 Series Cable Egualizers dB of cable Insertion Loss in dB at Frequency MHz equalized at Model Number 54 70 80 222 350 450 550 650 750 Pighest requency SEQ 750 02 2 0 2 0 2 0 1 8 1 4 1 3 1 3 1 2 1 0 1 5 SEQ 750 03 3 0 2 8 2 7 2 4 1 9 qu 1 5 1 3 1 0 2 5 SEQ 750 04 3 9 3 9 3 8 3 1 2 4 2 0 1 7 1 4 1 0 4 0 SEQ 750 05 4 9 4 6 4 5 3 5 2 9 2 3 1 8 1 4 1 0 5 0 SEQ 750 06 5 9 5 7 5 6 4 2 3 3 2 7 2 0 1 5 1 0 6 5 SEQ 750 07 7 0 6 8 6 6 5 0 3 6 2 8 2 0 1 6 1 0 8 0 SEQ 750 08 8 0 7 9 7 6 5 5 4 2 3 3 2 5 1 8 1 0 9 0 SEQ 750 09 9 0 8 8 8 6 6 3 4 8 3 8 2 7 2 0 1 0 10 5 SEQ 750 10 9 8 9 4 9 2 6 7 5 0 3 8 2 8 2 0 1 0 12 0 SEQ 750 11 11 0 10 5 10 2 7 5 5 5 4 2 3 0 2 0 1 0 13 5 SEQ 750 12 11 8 11 3 11 0 8 1 6 0 4 6 3 3 2 2 1 0 14 5 SEQ 750 13 12 9 12 4 12 2 8 9 6 6 5 1 3 7 2 5 1 0 16 0 SEQ 750 14 14 0 13 5 13 2 9 7 6 9 5 3 3 8 2 5 1 0 17 0 SEQ 750 15 14 9 14 3 13 9 10 1 7 5 5 8 4 8 2 6 1 0 18 5 SEQ 750 16 15 8 14 9 14 5 10 5 8 0 6 1 4 4 2 7 1 0 20 0 SEQ 750 17 16 8 16 0 15 6 11 3 8 2 6 2 4 4 2 6 1 0 21 0 SEQ 750 18 17 9 17 1 16 6 11 9 8 6 6 6 4 6 2 6 1 0 22 4
15. 4 9 Section 4 5 Reverse Balancing page 4 13 Section 4 6 Active Reverse Kit Installation Instructions page 4 17 MX0507 RevE Configuration 4 1 4 1 Power Supply Configuration power supply group have PADS and egualizers installed in the forward RF path before energizing The initial recommended accessory values are shown on the system map CAUTION To prevent hybrid damage C COR net recommends that all amplifiers a 411 Power Supply Setup Refer to Section 6 2 for all fuse removal and installation procedures procedures WARNING Hazardous voltages are present Use approved safety eguipment and 1 Open the amplifier housing refer to Section 3 1 if necessary 2 Verify that an appropriate MAIN FUSE is installed Table 4 1 lists the appropriate MAIN FUSE values for line extender amplifiers Inspect the fuse for visual defects m In E7 units with 117 VAC powering the MAIN FUSE is located in the RFI filter and must be removed for inspection Refer to Section 6 2 for removal and installation instructions m All other units have MAIN FUSE located in the RF module see Figure 2 1 which can be inspected without removing 3 Check the system map to determine whether the amplifier requires through powering If so verify that the required fuse buss bar slug or surge terminator is installed in the THRU POWER FUSE location see Figure 2 1 on page 2 2 Table 4 1 lists the maximum continuous
16. 40 54MHz Frequency Split AP 55 4 Integrated Power Supply Lid Mounted Power Supply None TLC 439 25 TV 499 25 TV None Passive Standard Gain 18dB High Gain 20dB 4dB No Power Supply 60V 60HZ 117V UL CSA 60V 50 60 Hz 1 0 Amp 90V H E Transformerless 90V Transformered A None 2 Port 1 GHz Full Lid 117V Powering 2 Port 1 GHz Full Lid 2 Port 1 GHz Flat Lid Standard or NA Corrosion Protected Module Designator Level Control Reverse Factory Equalization Powering Housing Housing Finish Based on the model options in Table 1 5 an E7 Line Extender with the part number E72CJPA12C6D1 has the following options 700 Series Line Extender E7 30dB PHD 2 750MHz C 42 54 MHz split J Lid mounted power supply P TLC A1 passive reverse 2 factory egualization of 4dB C 117V UL CSA power supply 6 2 Port 1 GHz full lid housing with 117 V powering D Consult your C COR net Price List or contact your C COR net sales representative at 800 233 2267 for further information 1 8 Introduction MX0507 RevE 1 5 Reguired Eguipment Tools and Supplies Table 1 6 lists the supplies tools and test eguipment needed to operate maintain and test the Line Extender Amplifier Eguipment with eguivalent or better specifications may be substituted for those listed in the table Table 1 6 Equipment Tools and Suppl
17. 6 2 Maintenance MX0507 RevE 6 Firmly press the replacement RF module into the housing until the back of the RF module bottoms against the inside of the housing 7 Using a flat blade screwdriver start the captive Module Hold Down screws into the housing Alternately tighten the screws to prevent stressing the module or housing Torque to between 25 and 27 in lbs 2 8 and 3 1 8 Install the MAIN FUSE and or the THRU POWER FUSE Refer to Section 6 2 for fuse removal and installation procedures 9 Remove the plug in accessories from the old RF module and install them into the replacement RF module 10 Perform the Forward and Reverse Field Tests Refer to Chapter 5 6 4 H E Power Supply Replacement procedures i WARNING Hazardous voltages are present Use approved safety and 1 Disconnect the Power Plug from RF module POWER PLUG connector by sgueezing the tabs on the Power Supply module Power Plug and pulling straight out 2 Useaflat blade screwdriver to loosen but not remove the four Power Supply Module Hold Down screws 3 Firmly grasp the Power Supply module slide it toward the RF module and pull it straight out of the housing 4 Orient the replacement Power Supply module so that the four Hold Down screw holes align with the four captive Module Hold Down screws in the housing cover Install the Power Supply module onto the screws and slide it away from the RF module 5 Tighten the
18. Balancing Carrier Level Balancing Carrier Level Measuring Amplifier Measuring Amplifier System Tilt Measured Tilt Equalization Value 5 Calculate the Equalization Value Using the appropriate table in Appendix A select an MEQ plug in accessory that has a tilt as close to the Equalization Value as possible For a full explanation of the selection process see Section A 1 2 6 If necessary at the Balancing Amplifier remove the 5 0 or factory jumper stripline from the REVERSE EQ plug in area Install the selected MEQ into the REVERSE EQ plug in area 7 Atthe Measuring Amplifier measure the adjusted Reverse High Balancing Carrier Level and record it as shown in the box below Calculate the PAD Value Measured Reverse High System Reverse High Balancing PAD Value Balancing Carrier Level Carrier Level 8 Select an SPB PAD that has a flat loss as close to the PAD Value as possible 9 If necessary at the Balancing Amplifier remove SPB 0 PAD or factory installed jumper stripline from the REVERSE PAD plug in area Install the selected SPB PAD into the REVERSE PAD plug in area 10 Atthe Balancing Amplifier measure the signal levels of both reverse balancing carriers at the Port 1 and Port 3 external testpoints and record these levels on the Amplifier Data Sheet 11 Close the housing and replace the caps on all external testpoints Refer to Section 3 5 Closing and Tightening if necessary 4 16 Configurati
19. COR net products including but not limited to installation of non C COR net equipment or computer programs except as performed by C COR net or its authorized representative will void this limited warranty 1 Except the E7 862 MHz 117 Vac line extender 1 2 Introduction MX0507 RevE 1 4 Overview The FlexNet 700 Series Line Extenders E7 amp E629 are broadband amplifiers for use in broadband systems The E70C and E71C amplifiers are single output low gain amplifiers designed to express between cascaded trunk amplifiers The E629 E72 and E73C amplifiers are single output high gain amplifiers designed to extend the reach of feeders General characteristics of the FlexNet line extenders are given in Table 1 1 The power supplies and housings are listed in Table 1 2 The line extender assemblies are illustrated in Figures 2 1 to 2 5 Table 1 1 Line Extender RF Module Characteristics Characteristic 771 2 70 72 E73C E73C E729C E629C 117 VAC 117 VAC Bandwidth 862 MHz 750MHz 750 2 750MHz 750MHz 750MHz 550 2 550 2 Spacing 35dB 21dB 28dB 30dB 33dB 33dB 30 31dB 32dB Level Control NLC ALC ALC ALC TLC none none none ALC none Reverse none none passive 18dB none passive 18 or 20dB none none passive 20dB passive 18 20dB or 20dB Input output 1 input 1 output configuration Testpoints 25 loss For balancing the forward RF path P
20. Loss Number Flat Loss dB dB dB dB SPB 0 0 0 SPB 16 5 16 5 SPB 0 5 0 5 SPB 17 17 0 SPB 1 1 0 SPB 17 5 17 5 SPB 1 5 1 5 SPB 18 18 0 SPB 2 2 0 SPB 18 5 18 5 SPB 2 5 2 5 SPB 19 19 0 SPB 3 3 0 SPB 19 5 19 5 SPB 3 5 3 5 SPB 20 20 0 SPB 4 4 0 SPB 4 5 4 5 SPB 5 5 0 Passband Flatness 0 3 dB P V Document number 600437 Revision C Return Loss 19 dB MX0507 RevE Reference Tables A 11 12 Reference Tables MX0507 RevE Appendix Functional Block Diagrams This appendix provides functional block diagrams to support the identification and balancing of the E7 FlexNet line extender Section E7 Functional Block Diagram page B 2 Section B 2 E7 862 MHZ117V Functional Block Diagram page 3 Section E629 Functional Block Diagram page 4 MX0507 RevE Functional Block Diagrams B 1 Jamog OVA LIT OVA LIT uo Apuo Suuowod IVA LIT juosoud jou vC 9 euuou Tegrdury ASIAN lojenuo y TT xda 011007 PAT onewony 4 di Vt 8 ONIINVIVA ESI AET A uo I1 10 IMA Sseq MOT Ajddng ASIOADY 03 5 lt WTO 1591 pesoorg OV AP S7 Od
21. Power Supply Module Hold Down screws with a flat blade screwdriver Reconnect the Transponder power cable if present 6 Connect the Power Supply Plug to RF module POWER PLUG connector 7 Configure the Power Supply according to Section 4 1 MX0507 RevE Maintenance 6 3 6 5 Housing Replacement WARNING Hazardous voltages are present Use approved safety eguipment and are recommended procedures Sheath currents may flow through the amplifier housing Establish a second current path around the housing before disconnecting any cables Automotive jumper cables CAUTION Amplifier electronic components can be damaged by the environment Close the housing whenever it is left unattended to keep moisture out of the amplifier and to protect the network from RF interference CAUTION DO NOT back centerseizure screws completely out of the seizure mechanism Centerseizure screws are not captive Screws loose in the housing can cause short circuits 6 4 zl i N 59 Remove the RF module and power supply module as described in Sections 5 3 and 5 4 Beginning at Port 1 and using a 2 Phillips screwdriver loosen the centerseizure screw no more than two full turns Loosen the connector back nut and main nut on the external cable connector Pull the cable with connector main nut straight out of the connector body Loosen and remove the connector body from the housing cable entry port Disconnect Port 3 by repeating steps
22. Refer to Figure 4 7 if necessary b Using needle nose pliers remove the capacitor It is not soldered to the circuit board Examine the pins on the UX0124 reverse hybrid supplied in the kit The pins should be cut to the length shown in Figure 4 4 Ensure that the pins are straight Apply a thin coat of thermal joint compound to the bottom of the reverse hybrid Align the pins of the reverse hybrid with the holes on the motherboard Firmly press the reverse hybrid down to the motherboard Insert the two hybrid mounting screws supplied in the upgrade kit through the bottom of the RF module as shown in Figure 4 5 Install a combination nut lock washer on each screw Configuration MX0507 RevE 0 2 inches Figure 4 4 UX0124 Lead Lengths 5 Using the nutdriver tighten the nuts onto the screws to secure the reverse hybrid to the RF module Use a flat blade screwdriver to keep the screw from turning Torque to between 12 and 18 in Ibs 1 4 and 2 0 N m 6 Remove any excess thermal joint compound from the perimeter of the hybrid Combination Nut Lock washer RF Module Motherboard 1 Reverse RF Hybrid Thermal Joint Compound 1 RF Module L Chassis P d Mounting Screws Figure 4 5 UX0124 Installation 4 6 2 4 Regulator Installation kits 173342 02 03 05 only 1 Locate the hole in the chassis indicated in Figure 4 6 Place the small insulator pad in the orientation shown 2 Ensure that the reg
23. be used with 750 and 550MHz amplifiers 550 series cable equalizers and MCS 550 series cable simulators are designed for forward balancing 550 MHz systems MEQ MEQT 65 55 42 33 and 30 cable equalizers are designed for reverse balancing and should be selected according to the reverse path bandwidth SPB xx series cable attenuators may be used for both forward and reverse balancing in any system SEQPB series cable attenuators are attenuators PADs built on an equalizer footprint Table 1 SEQ 862 Series Cable Equalizers Insertion Loss in dB at Frequency MHz Model Number 42 54 70 80 222 500 600 700 800 862 SEQ 862 02 2 0 1 9 1 9 1 9 1 8 1 4 1 3 1 2 1 1 1 0 1 0 SEQ 862 03 3 0 2 9 2 8 2 8 2 4 1 6 1 5 1 4 1 2 1 0 2 0 SEQ 862 04 4 0 4 0 4 0 4 0 3 2 1 9 1 6 1 4 1 2 1 0 4 0 SEQ 862 05 5 0 4 8 4 6 4 5 3 4 2 1 1 7 1 4 1 2 1 0 5 0 SEQ 862 06 6 0 5 9 5 6 5 6 4 2 2 6 2 1 1 6 1 2 1 0 6 5 SEQ 862 07 7 0 6 9 6 6 6 6 5 4 3 1 2 5 1 9 1 4 1 0 7 8 SEQ 862 08 8 0 7 8 7 5 7 4 5 6 3 4 2 7 2 1 1 4 1 0 8 7 SEQ 862 09 9 0 8 8 8 4 8 3 6 3 3 6 2 8 2 0 1 4 1 0 10 5 SEQ 862 10 10 0 9 6 9 1 8 9 6 9 3 8 2 9 2 1 1 4 1 0 11 0 SEQ 862 11 11 0 10 8 10 3 10 2 7 6 4 4 3 5 2 5 1 6 1 0 13 0 SEQ 862 12 12 0 11 6 11 1 10 8 8 2 4 7 3 7 2 7 17 1 0 14 5 SEQ 862 13 13 0 12 8 12 4 12 0 8 8 5 0 3 9 2 8 1 7 1 0 15 5 SEQ 862 14 14 0 13 6 12 9 12 7 9 6 5 2 4 0 2 9 1 8 1 0 16 5 SEQ 862 15 15 0 14 5 13 9 13 5 10 4 5 6 4 2 3 0 1 8 1 0 17 5 SEQ 862 16
24. close as possible to the desired Equalization Value The tilt for a particular accessory is calculated as follows Insertion Loss at Low Balancing Carrier Insertion Loss at High Balancing Carrier SEQ MEQ Tilt A 1 2 2 Cable Simulator Selection negative Equalization Value Select a cable simulator from the appropriate table in Section A 3 that has a tilt as close as possible to the desired Equalization Value The tilt for a particular accessory is calculated as follows Insertion Loss at Low Balancing Carrier Insertion Loss at High Balancing Carrier SCS Tilt A 2 Installing Plug in Accessories Equalizers are keyed so they can only be installed one way The amplifiers may have factory installed jumper wires that provide a continuous signal path across accessory plug in areas The jumpers must be removed before accessories can be installed Some jumpers are soldered to the motherboard and must be cut out while others are plug ins and must be pulled out Before installing any accessories remove these jumper wires When the jumper wires are removed use an SPB 0 or SEQ 0 to provide continuity zero loss for the signal path A 2 Reference Tables MX0507 RevE Accessory Tables SEQ 750 series cable equalizers and SCS 750 cable simulators are designed for forward balancing 750MHz systems but may also be used with 550MHz amplifiers Similarly 862 series cable equalizers and simulators are designed for 862 MHz systems but may
25. compensate for increased resistance when the cable is warmer For amplifiers with an H E Power Supply skip to Step 3 2 Measure and adjust Raw DC voltage a Setthe multimeter to DC Voltage 0 to 200 Vpc range Connect multimeter ground lead to the amplifier housing b Setthe Raw DC Voltage Selector Switch to position 1 the bottom position c Measure the DC voltage at the RAW DC T P Ifthe voltage measured is less than 28 VDC move the Switch to the next higher position and remeasure Ifthe voltage is greater than 35 VDC and the Selector Switch is in the bottom position replace the RF module 3 Take the measurements shown in Table 4 4 a Ifthe measurements are out of the acceptable range take the appropriate action shown in the table b Ifthe measurements are within the acceptable range record the values on the Amplifier Data Sheet located in Appendix C MX0507 RevE Configuration 4 3 Table 4 2 Testpoints Testpoint Test Values Troubleshooting when Unacceptable Port 1 Centerseizure Screw See Table 4 3 Verify that the center conductor pin and power cable are not shorted to ground Check the tightness of the centerseizure screw Check cable plant powering MAIN FUSE or THRU POWER FUSE See Table4 3 If power is acceptable at the centerseizure screw but inputs left fuseclip unacceptable at the fuse inputs replace the RF module MAIN FUSE or THRU POWER FUSE See Table 4 3 If power
26. evenly on the rubber gasket 3 Begin partially tightening the lid bolts with a 7 16 inch 11 mm nutdriver following the pattern shown in Figure 3 7 Ensure that the lid seats evenly on the rubber gasket CAUTION Do not torque the lid bolts to more than 40 in lbs 4 5 N m Overtightening may warp the housing allowing moisture to enter and damage the components 4 Continue the tightening sequence finally torguing to between 35 and 40 in lbs 4 0 and 4 5 N m with a torque wrench The lid should now seat evenly and compress the rubber gasket to create a weatherproof seal 5 Install testpoint caps on all testpoint and finger tighten Then use a wrench to tighten the caps an additional one quarter to one half turn 1 6 e 5 2 Figure 3 7 Housing Closing and Tightening Sequence MX0507 RevE Housing Instructions 3 11 3 12 Housing Instructions MX0507 RevE Chapter 4 Configuration This chapter contains the procedures for the initial setup of the FlexNet E7 Series Line Extender Included are power supply set up and testing balancing carrier levels temperature compensation forward and reverse balancing as well as various kit installation instructions Section 4 1 Power Supply Configuration page 4 2 Section 4 2 Calculating Balancing Carrier Levels for Linear Output Tilt Operation page 4 5 Section 4 3 Temperature Correction page 4 6 Section 4 4 Forward Balancing page
27. head screws 4 for securing the H E Switching Regulator Mounting Screws Power Supply in the housing lid 19 Linear Power Supply Converts AC power to regulated DC voltage for operation of the amplifier Only the transformer is visible 20 RAW DC T P A testpoint to measure the unregulated DC voltage from the transformer and rectifier This should be between 28 and 35 Vpc 21 RAW DC Voltage Adjusts the Power Supply transformer to the input AC voltage in order to Selector Switch provide RAW DC between 28 and 35 Vpc 22 REVERSE Testpoint to measure the reverse power supply regulated DC voltage This should be 24 Vpc 5 22 8 to 25 2 VDC Not available in units with an HEPSE90 power supply 23 CABLE SELECT TLC only Switch to match the temperature compensation circuit to the cable preceding the amplifier Use 6dB for up to 10dB of preceding cable loss use 15 for over 104 of preceding cable loss 24 TLC MAN Switch to enable or disable TLC MAN provides a constant gain TLC causes the amplifier to monitor temperature to maintain preselected output levels TLC setting reguires appropriate setting of the CABLE SELECT switch 25 RFI Filter Blocks transmission of any RF signals into the 117 VAC line Used in 117 VAC powered models only 26 Detachable AC Connection from 117V power supply to 110 V wall socket Power Cord 1 Although labeled on the faceplate the 862 MHz 117 V E7 line extender does not have a main fuse located on the PCB
28. input signal is not at a reasonable level check amplifiers closer to the signal source or headend Reasonable levels are determined by the system design Your system map and Amplifier Data Sheets can give you the designed and historical levels When trying to fix an outage quickly a much wider range of values may be accepted than when balancing or sweeping a system You can usually fix smaller problems after service is restored When you have many amplifiers to check a good general method for finding the source of an outage is the 50 50 method The 50 50 method consists of testing for RF signals and power problems at a device halfway through the cascade or problem leg Keep dividing the problem sections in half until you isolate the malfunction You can combine this method with other methods An amplifier that outputs reasonable RF signal levels may not pass power to the next device likely due to a blown fuse The lack of power passing is then caught when the next active device in the signal path is checked which leads you back to the causative amplifier 5 3 Power Troubleshooting Use the procedure given in Section 4 1 2 to troubleshoot the power supply 5 4 Forward Path Field Testing This procedure verifies that the amplifier 15 balanced to the correct forward signal levels W delivers the specified gain to forward RF signals These procedures require the use of a signal level meter SLM A more comprehensive test involves swe
29. input testpoint 25 dB below the signal for 1 GHz housings which have a 25dB label 8 PORT 3 Access to the Port 3 centerseizure screw 9 ALC SENSITIVITY Adjustment of the amplifier output when the amplifier is operating in ALC mode This has no affect when the amplifier is switched to MAN mode 10 REVERSE EQ Plug in location for a fixed slope accessory for fixed slope adjustment of reverse RF signals 11 REVERSE PAD Plug in location for a fixed attenuator accessory for fixed flat loss adjustment of reverse RF signals 12 ALC MAN Switch to enable or disable ALC The MAN manual setting provides a constant gain ALC causes the amplifier to monitor preselected pilot carrier levels to maintain preselected output levels 13 MODULE HOLD Hold down screws that secure the module in the housing DOWN 14 Testpoint to measure the forward power supply regulated DC voltage This should be 24 VDC 5 22 8 to 25 2 VDC 15 POWER PLUG Connection for H E Power Supply to the RF module MX0507 RevE Physical Identification 2 7 Table 2 1 Testpoints Plug in Locations Connections and Parts cont d Item Label Function Number 16 MAIN FUSE Amplifier AC power overcurrent protection The amplifier will not operate without this fuse installed 17 THRU POWER Overcurrent protection for AC power passed to the next amplifier No AC FUSE power passes through to the next amplifier without this fuse installed 18 Power Supply 8 32x5 16 pan
30. powered units 1 Using a fuse puller center the fuse or slug across the fuseclip Be sure that the metal tips of the fuse slug do not extend beyond the fuse guides of the holder on either side 2 Apply even steady pressure to the tool until both ends of the fuse or slug snap into the holder simultaneously For 117 VAC powered units 1 Replace the fuse into its holder 2 Replace the fuse cap by positioning it over the fuse pressing the fuse down into the holder and turn the cap clockwise about 4 turn to lock in place Use fingers or screwdriver as needed 6 3 RF Module Replacement WARNING Hazardous voltages are present Use approved safety eguipment and A procedures CAUTION Arcing between the RF module and the housing will damage the unit Disconnect power to the unit before removing the RF module 1 Ifan Power Supply is present disconnect the Power Plug from the RF module POWER PLUG connector Release the plug by sgueezing the tabs on the Power Plug 2 Use a flat blade screwdriver to loosen and release the captive Module Hold Down screws 3 Grasp the RF module handles and pull the RF module straight out of the housing Ensure that the MAIN FUSE is removed from the new RF module If not remove it Refer to Section 6 2 for fuse removal and installation procedures 5 Onient the replacement RF module so that the RF module banana pins align with the receptacles located on the centerseizure assemblies
31. the high carrier frequency Replace the RF module if the amplifier gain measured at Port 1 is outside of acceptable tolerance Troubleshooting Test Procedures MX0507 RevE Voltage with specified range n a for L E with 117 V powering Raw DC voltage within specified range voltage within specified range e sheet 2 Figure 5 2 MX0507 RevE supply Centerseizure screw tight Main fuse OK Check power source external to unit Does the amplifier use a 117 V power Main fuse OK bu Check external power source Replace the main fuse If the fuse blows again replace the RF module Tighten centerseizure screw Previous amplifier fuse for thru power OK Yes Replace the H E power supply Replace the main fuse If the fuse blows again if present or the RF module replace the H E power supply if present for units with linear power or the RF module for units with linear power supplies supplies supplies Replace the H E power supply if present or the RF module for units with linear power Replace the thru fuse If the fuse blows again check that the center conductor or connector pin and power cable are not loose or shorted to ground If not replace the H E power supply if present or the RF module for units with linear power supplies Troubleshootin
32. through the use of reverse port pads equalizers and distribution accessories m With the single person method turn off the ALC if present in the reverse rack mount receiver at the headend m The first amplifier or node must be balanced correctly If balanced incorrectly all amplifiers after it will be affected MX0507 RevE Configuration 4 13 4 5 1 Single Person Reverse Balancing Procedure Single person reverse balancing which is becoming the standard method of reverse balancing in the cable industry requires the use of more sophisticated equipment compared to the two person reverse balancing method Figure 4 2 shows the typical single person configuration of the test equipment used in the single person reverse balancing procedure Because these are sweep systems ingress may affect the outcome Terminating reverse ports or keeping all amplifiers terminated until activation will limit ingress The test equipment also has a noise ingress feature which can be used for troubleshooting This displays the noise seen in the headend Tech TD0079 provides a generalized procedure using Wavetek Stealth equipment 3ST 3HRV and 3SRV Hewlett Packard CaLan equipment 3010H and 3010R and the method using relatively inexpensive video equipment spectrum analyzer signal generator video camera video signal modulator and monitor For specific instructions on operation of the equipment refer to the manufacturer s user manual
33. 16 0 15 3 14 7 14 3 10 8 6 1 4 7 3 3 2 0 1 0 19 0 SEQ 862 17 17 0 17 5 16 8 16 4 12 2 6 5 5 1 3 5 2 0 1 0 21 3 SEQ 862 18 18 0 18 4 17 5 17 2 12 7 6 8 5 2 3 6 2 0 1 0 22 4 SEQ 862 19 19 0 19 5 18 6 18 2 13 6 7 2 5 7 3 8 2 0 1 0 23 9 SEQ 862 20 20 0 20 3 19 4 19 0 14 2 7 6 5 8 3 9 2 0 1 0 24 9 Passband Flatness 0 6 dB P V dB of cable equalized at highest frequency Return Loss 1 0 20 18 dB Document number 600438 Revision MX0507 RevE Reference Tables A 3 Table 2 SCS 862 Series Cable Simulators Model Insertion Loss in dB at Freguency MHz dB of cable simulated at Number 54 70 80 222 550 750 806 862 300 450 550 750 806 862 SCS 862 02 1 0 1 0 1 0 1 3 1 7 1 9 2 0 2 0 0 7 0 8 1 0 1 2 1 2 1 3 SCS 862 03 1 0 1 0 1 0 1 6 2 4 2 8 2 9 3 0 1 3 1 7 1 9 2 3 2 5 2 6 SCS 862 04 1 0 1 1 1 2 1 9 3 2 3 8 3 9 4 0 2 0 2 6 2 9 3 5 3 8 3 9 SCS 862 05 1 0 1 0 1 1 2 3 3 9 4 7 4 9 5 0 2 7 3 4 3 9 4 7 5 0 5 2 SCS 862 06 1 0 1 0 1 2 2 6 4 6 5 5 5 8 6 0 3 3 4 2 4 8 5 7 6 2 6 4 SCS 862 07 1 0 1 2 1 4 3 1 5 2 6 3 6 6 7 0 4 3 5 4 6 0 7 1 7 4 7 7 SCS 862 08 1 0 1 8 1 4 3 3 6 0 7 3 7 6 8 0 5 0 6 2 6 9 8 2 8 6 8 9 SCS 862 09 1 0 1 3 1 6 3 7 6 6 8 1 8 5 9 0 5 7 7 1 7 9 9 4 9 8 102 SCS 862 10 1 0 1 4 1 6 3 9 7 3 9 0 9 4 10 0 64 8 0 8 9 10 6 11 1 11 5 SCS 862 11 1 0 1 5 1 7 4 4 80 100 103 11 0 71 8 9 9 9 11 8 123 12 8 SCS 862 12 1 0 1 5 1 7 4 8 8 7 10 9 11 4 12 0 7 9 9 8 110 13 1 13 6 14 1 SCS 862 13 1 0 1 5 1 8 5 95 119 124 13 0 86 107 120 143 148 15
34. 3 1 4 1 4 1 5 1 8 1 9 2 1 vii viii MX0507 Rev E List of Figures Chapter 1 Introduction 1 1 Chapter 2 Physical Identification 2 1 Figure 2 1 E7 Line Extender w H E Power 2 2 Figure 2 2 Line Extender w Linear Power Supply 2 3 Figure 2 3 E7 Line Extender w 117 Vac Linear Power Supply 2 4 Figure 2 4 E629 Line Extender 2 5 Figure 2 5 7 862MHZ 17V Line Extender 2 6 Chapter 3 Housing Instructions 3 1 Figure 3 1 Line Extender Assemblies 3 3 Figure 3 2 Strand 3 5 Figure 3 3 Wall Pedestal Mounting 3 7 Figure 3 4 Cable Attachment Ports with RF module removed 3 8 Figure3 5 Heatshrink 3 9 Figure 3 6 Cable Connector Assembly 3 9 Figure 3 7 Housing Closing and Tightening 3 11 Chapter 4 Configuration 4 1 Figure 4 1 Temperature Correction Value Chart 4 8 Figure 4 2 Typical Configuration of Single Person Reverse Balancing Equipment 4 14 Figure4 3 DRM Installation 4 18 Figure 4 4 0124 Lead Lengths 4 19 Figure 4 5 UX0124
35. 38 5 35 17 17 35 35 42 42 E72CJ xx5xxxx 30dB 17 5 15 10 5 8 47 5 44 38 5 35 17 17 37 37 E72CJPA15C9K 42 42 E72CJPxx4C9Kx 30dB 17 5 15 10 5 8 47 5 44 38 5 35 17 17 35 35 E72CJPxx5C9Kx 42 42 9 1 0SOXNW Table 1 4 E700 Series Line Extender Inputs and Outputs Model Information Forward Reverse Minimum Inputs Outputs Minimum Outputs dBmV dBmV Inputs dBmV dBmV Model Oper 862 750 550 250 54 862 750 550 250 54 dBmV dBmvV dBmV dBmV Number ational MHz MHz MHz MHz MHz MHz MHz MHz MHz MHz 5MHz MHz 5MHz max MHz E72CJRxx5D1xx 30dB 15 15 15 45 43 340 200 20 39 5 39 5 53 53 42 042 E73CLPNSAC9Kx 33dB 14 5 12 7 5 5 47 5 44 38 5 34 17 17 37 37 40 40 7 4 33dB 14 5 12 7 5 5 47 5 44 38 5 34 170 17 350 35 40 40 E73CLxNASC 33dB 14 5 12 7 5 5 47 5 44 38 5 35 170 17 370 37 40 40 E73CJxNA5Cxxx 33dB 14 5 12 7 5 5 47 5 44 38 5 35 17 17 37 37 42 42 E73CN NA4C8xx 33dB 14 5 12 7 5 5 47 5 44 38 5 35 26 26 44 44 65 65 E73COPNASC9Kx 33dB 14 5 11 5 7 5 5 50 47 5 44 38 5 35 5 17 17 37 55 70 70 55 55 E729B4 30dB 16 9 46 39 26 26 44 44 30 30 E729B NA4Axxx 31dB 15 8 46 39 260 26 440 44 30 30 E729J NA4E1xx 30dB 16 11
36. 7 RevE Physical Identification 2 5 MODULE HOLD DOWN e LINE EXTENDER 22508 FORWARD BALANCING HEH VOLTAGE 19 REVERSE Ea 26 25 mounted E internally 2 Figure 2 5 E7862MHZ 117 V Line Extender 2 6 Physical Identification 16 MX0507 RevE Table 2 1 Testpoints Plug in Locations Connections and Parts Item Label Function Number 1 PORT 1 Allows access to the Port 1 centerseizure screw 2 Port 1 Testpoint Forward signal input reverse signal output testpoint 25dB below the signal for 1 GHz housings which have 25dB label 3 FORWARD PAD Plug in location for a fixed attenuator accessory for fixed flat loss adjustment of the forward signal 4 FORWARD EQ Plug in location for a fixed slope accessory for fixed slope adjustment of forward RF signals Use to compensate for cable preceding the amplifier 5 INTERSTAGE EQ Plug in location for a fixed slope accessory to set the slope of the amplifier output Install the accessory specified on the System Map Do not use this position to compensate for cable preceding the amplifier This accessory can be a signature correction device 6 25dB FORWARD Internal testpoint for balancing the forward path The testpoint level is 25dB BALANCING TP below the signal 7 Port 3 Testpoint Forward signal output reverse signal
37. 8 13 0 15 2 16 2 18 1 21 5 65 05 7 7 2 5 7 1 16 0 18 7 19 9 22 2 26 5 MEQT 65 06 8 6 2 5 8 5 19 0 22 2 23 6 26 4 31 5 MEQT 65 07 9 6 2 5 9 8 22 0 25 7 27 4 30 6 36 4 Passband Flatness MEQ 65 0 1 dB MEQ 65 Document number 600615 Revision B MEQT 65 0 2 MEQT 65 Document number 600616 Revision B Return Loss I O 18 16dB Table A 9 55 and MEQT 55 Series Cable Equalizers Insertion Loss in dB at dB of cable equalized at Frequency MHz Model Number 5 55 55 300 400 450 550 750 MEQ 55 2 1 9 1 0 1 2 3 0 3 5 3 7 4 2 5 0 MEQ 55 3 2 7 1 0 2 5 6 0 7 0 7 5 8 3 9 9 MEQ 55 4 3 6 1 0 3 7 9 0 10 5 11 2 12 5 14 9 MEQ 55 5 4 5 1 0 4 9 12 0 14 0 14 9 16 7 19 9 MEQ 55 6 5 6 1 0 6 6 16 0 18 7 19 9 22 2 26 5 MEQ 55 7 6 8 1 0 8 2 20 0 23 4 24 9 27 8 33 1 MEQT 55 2 4 2 2 5 2 5 6 0 7 0 7 5 8 3 9 9 MEQT 55 3 5 1 2 5 3 7 9 0 10 5 11 2 12 5 14 9 MEQT 55 4 6 0 2 5 4 9 12 0 14 0 14 9 16 7 19 9 MEQT 55 5 7 1 2 5 6 6 16 0 18 7 19 9 22 2 26 5 MEQT 55 6 8 3 2 5 8 2 20 0 23 4 24 9 27 8 33 1 MEQT 55 7 9 5 2 5 9 9 24 0 28 0 29 9 33 3 39 8 Passband Flatness 0 2dB P V MEQ 55 Document number 600695 Revision 50 Return Loss 18 16dB 55 Document number 600696 Revision 50 A 8 Reference Tables MX0507 RevE Table 10 42 and 42 Series Cable Egualizers Insertion Loss in dB at dB of cable equalized at Frequency MHz Model Number 5 42 42 300 400 450 550 750 MEQ 42 2 3 0 1 0 3 0 8 0 9 4 10 2 11 3 13 4 MEQ 42
38. A 2 cable simulator selection A 2 MX0507 RevE calculating carrier levels 4 5 compliance statements of 1 2 D document conventions 1 1 F forward balancing procedures 4 9 4 12 requirements 4 9 frequency split 1 8 functional block diagrams B 1 fuses location 2 8 replacement 6 1 G gain operational 1 5 1 7 H housing housing replacement 6 4 housing instructions 3 1 cable connector assembly 3 9 closing and tightening 3 11 heatshrink boot 3 8 3 9 mounting general strand 3 4 wall pedestal mounting 3 5 wall pedestal mounting with EMBs 3 6 mounting bolt selection 3 7 opening 3 2 1 1 preparing for installation 3 2 input and output values 1 5 1 7 input configuration 1 3 L level control 1 8 maintenance 6 1 fuse replacement 6 1 general inspection 6 1 housing replacement 6 4 power supply replacement 6 3 RF module replacement 6 2 materials reguired 1 9 MCS 550 A 7 42 9 MEQ 55 8 550 7 65 8 42 9 55 8 550 7 65 8 model options See part number O operational gain 1 5 1 7 output configuration 1 3 1 2 p part number E7 line extender 1 8 power passing 4 2 power supply AC testpoints 4 4 configuration 4 2 fusing 4 2 power passing 1 3 power supplies and housings 1 4 voltage testing 4 3 powering options 1 8 R reference tables A 1 accessory tables A 3 related documents 1 10
39. AC current passing approved for these amplifiers Table 4 1 Fusing Power Passing Considerations Power Supply Recommended MAIN FUSE Maximum Continuous power supply fuse AC Current Passing 60 Volt Linear 2A slow blow E629 and E729 10A other E7 13A 90 Volt Linear 2A slow blow 13A 90 Volt H E 6 25 slow blow 13A 117 Volt Linear 1A slow blow N A 4 2 Configuration MX0507 Rev E 4 1 2 Voltage Testing Note AC measurements may read up to 10 error if a true rms meter is not used AC ripple measurements cannot be made without an AC coupled meter Check the power distribution system as follows For amplifiers with 117VAC powering begin with Step 3 1 Measure AC voltages Take the measurements shown in Table 4 2 and compare the measured voltages to the range given in Table 4 3 a Ifthe measurements are out of the acceptable range take the appropriate action shown in the table b Ifthe measurements are within the acceptable range record the values on the Amplifier Data Sheet located in Appendix C Tip For Linear Power Supplies Cold weather conditions reduce the resistance of the cable raising the AC input voltage and resulting Raw DC voltage If the measured value of the Raw DC is near bottom of the acceptable range 28VDC and the aerial cable carrying the power is currently subjected to very cold conditions set the Raw DC Voltage Selector Switch to the next higher position This will
40. ALC circuit or carrier will need readjustment after these carriers are turned on Note Using an adjusted ALC pilot carrier as the Forward High Balancing Carrier will result in an improperly balanced amplifier Do not adjust the ALC pilot carrier level if it is also used as the Forward High Balancing Carrier 3 Ifthe carriers adjacent to the ALC pilot carrier will be used in the active system ensure that they are on when balancing the amplifier If these carriers cannot be turned on perform the following steps to adjust the ALC pilot carrier to compensate for the adjacent carriers If the ALC pilot carrier is the Forward High Balancing Carrier proceed to Step 5 and do not adjust ALC level a Atthe headend verify that the ALC pilot carrier is adjusted properly Record the initial level of the ALC pilot carrier b Increase the ALC pilot carrier level as follows dB if both adjacent carriers are turned off during balancing 0 75dB if only the upper adjacent carrier is turned off during balancing 025dB if only the lower adjacent carrier is turned off during balancing 4 10 Configuration MX0507 RevE 4 Set the amplifier in factory aligned condition as follows m If the amplifier has ALC or TLC set the ALC MAN Switch or TLC MAN Switch to the MAN position m Remove any SEQ and SPB accessories installed in the FORWARD EQ and FORWARD PAD plug in areas and replace them with striplines SEQ 0 or SPB 0 accessories m Ifan
41. E7 FlexNet 700 Series E7 8 E629 Line Extender Amplifiers Procedures Manual Procedures Manual for E7 FlexNet 700 Series E7 amp E629 Line Extender Amplifiers E7 700 Series E7 8 E629 Line Extender Amplifiers C COR net Document Number MX0507 Revision E Copyright 1993 1996 1997 1999 2001 C COR net Corp rights reserved Trademarks C COR C COR Electronics FlexNet and I Flex are registered trademarks and Cable Network Manager CNM COR Convergence COR Connect FlexNode naviCOR lumaCOR Transfer Linearization and TL Technology are trademarks of C COR net Corp other brand and product names are trademarks or registered trademarks of their respective companies Contents and specifications within this manual are subject to change without notice Contacting C COR net Technical Support Contact Information You can contact C COR net by phone e mail Internet fax or mail When contacting C COR net Technical Support please be prepared to provide the information listed below Your name Your company name and address Your phone and fax number Your e mail address The system site A description of the problem s you are experiencing Any equipment part model numbers related to your specific problem s The best way to contact you phone fax e mail or mail The best time to contact you Phone Call the C COR net worldwide headquarters 24 hours a day 7 day
42. Housing Standard Diagonal Cutting Pliers medium size Jumper cutting Phillips Screwdriver MX0507 RevE 1 Reverse kit installation Introduction 1 9 Table 1 6 Equipment Tools and Supplies cont d Tools Eguipment Reguired Characteristic Use Tape Measure Mounting EMBs on wall pedestal Phillips Screwdriver 2 Loosening and tightening centerseizure screws Reverse kit installation Flat Blade Screwdriver 3 16 inch 5mm RF module removal Needle Nose Pliers Jumper removal Reverse kit installation Reverse Upgrade Kit See Table 4 5 Reverse kit installation Nutdriver 14 inch Reverse kit installation Soldering Iron small Reverse kit installation Thermal Joint Compound Reverse kit installation 2 diplex filters C COR net P N 162198 01 Reverse kit installation in E629 IC extractor tool Reverse kit installation in E629 1 An 11 mm nutdriver or wrench can normally be used in place of a 7 16 inch tool if the bolt and nutdriver are manufactured to nominal across the flat tolerances A non fit can occur if the nutdriver is manufactured to minimum dimensions and the bolt head to maximum dimensions 1 6 Related Documents Document Title Number MX0443 Amplifier Installation Instructions for 1 GHz 4 Port Housings 1 10 Introduction MX0507 RevE Chapter 2 Physical Identification In this chapter Figures 2 1 to 2 5 and Table 2 1 identify the user accessible tes
43. Interstage SEQ is specified on the System Map cut out the factory installed jumper from the INTERSTAGE EA plug in area Install the reguired SEO accessory 5 Ifthe amplifier has TLC determine the amount of cable loss preceding the amplifier in dB at the highest system frequency For 104 or less preceding cable loss set the CABLE SELECT Switch to 6dB for greater than 10dB set to 15dB Note Testpoint losses are 25dB for 1 GHz housings 6 Connect the Signal Level Meter SLM to the 25dB FORWARD BALANCING testpoint 7 Measure the signal levels of both forward balancing carriers These levels will be referred to as the Measured High and Low Balancing Carrier Levels Record these levels as shown in the box that follows Calculate System Tilt Measured Tilt and Equalization Value System Forward High System Forward Low System Tilt Balancing Carrier Level Balancing Carrier Level Measured Forward High Measured Forward Low Measured Tilt Balancing Carrier Level Balancing Carrier Level System Tilt Measured Tilt Equalization Value 8 Ifthe Equalization Value is positive an SEQ is needed If negative an SCS is needed Using the appropriate tables in Appendix A Reference Tables select an accessory with a tilt as close to the Equalization Value as possible For a full explanation of the selection process and accessories see Section A 1 2 Using the Insertion Loss in dB at Frequency Columns 9 If ne
44. It is mounted on the RFI filter 2 Although labeled on the faceplate the 862 MHz 117 V E7 line extender does not have a through power fuse 2 8 Physical Identification MX0507 RevE Chapter 3 Housing Instructions The electronic components of the FlexNet E7 Series Line Extender are enclosed in a specialized diecast aluminum housing Proper installation and other housing related procedures are important to ensure the integrity of the electronics in the housing The following sections describe proper opening and closing techniques to be used when accessing the internal components as well as recommended cable attachment procedures Section 3 1 Housing Opening page 3 2 Section 3 2 Preparing for Installation page 3 2 Section 3 3 Housing Mounting page 3 4 Section 3 4 Cable Attachment page 3 8 Section 3 5 Closing and Tightening page 3 11 MX0507 RevE Housing Instructions 3 1 3 1 Housing Opening WARNING Hazardous voltages are present Use approved safety eguipment and procedures CAUTION Amplifier electronic components be damaged by the environment Close the housing whenever it is left unattended to keep moisture out of the station and to protect the network from RF interference 3 2 Loosen the six captive lid bolts with a 7 16 inch 11 mm nutdriver Hand loosen and release the two captive cover bolts next to the cover hinges Hand loosen and release the captive cover bo
45. MEAT 550 Document number 600600 Revision B MEAT 550 0 4 dB P V Return Loss 18 16 dB Table 7 MCS 550 Series Cable Simulators Insertion Loss in dB at Freguency MHz dB of cable simulated at Model Number 50 150 300 330 400 450 500 550 300 330 400 450 500 550 MCS 550 2 1 0 1 3 1 6 1 7 1 8 1 8 1 9 2 0 1 0 1 1 1 2 1 2 1 3 1 4 MCS 550 3 1 0 1 6 2 2 2 8 2 5 2 7 2 8 3 0 2 0 2 1 2 8 2 5 2 6 2 8 MCS 550 4 10 19 28 30 33 35 38 4 0 3 0 32 35 37 4 0 4 2 MCS 550 5 1 0 2 2 3 4 3 6 4 1 4 4 4 7 5 0 4 0 4 2 4 7 5 0 5 8 5 6 MCS 550 6 10 24 40 4 3 49 52 56 6 0 5 0 53 58 6 2 6 6 6 9 MCS 550 7 10 28 4 6 49 56 6 1 6 5 7 0 6 0 64 70 75 79 83 MCS 550 8 10 30 52 56 64 69 75 8 0 70 74 82 87 92 97 MCS 550 9 10 33 58 6 3 72 78 84 90 8 0 84 93 100 106 11 1 Passband Flatness 0 4 dB P V Document number 600569 Revision 50 Return Loss I O 18 16 dB MX0507 RevE Reference Tables A 7 Table 8 65 and 65 Series Cable Egualizers Insertion Loss in dB at dB of cable equalized at Freguency MHz Model Number 5 65 65 300 400 450 550 750 65 02 2 0 1 0 1 3 3 0 3 5 3 7 4 2 5 0 65 03 2 9 1 0 2 7 6 0 7 0 7 5 8 3 9 9 MEQ 65 04 3 9 1 0 4 0 9 0 10 5 11 2 12 5 14 9 MEQ 65 05 5 2 1 0 5 8 13 0 15 2 16 2 18 1 21 5 MEQ 65 06 6 2 1 0 7 1 16 0 18 7 19 9 22 2 26 5 MEQ 65 07 7 1 1 0 8 5 19 0 22 2 23 6 26 4 31 5 MEQT 65 02 4 4 2 5 2 7 6 0 7 0 7 5 8 3 9 9 MEQT 65 03 5 4 2 5 4 0 9 0 10 5 11 2 12 5 14 9 65 04 6 7 2 5 5
46. NTSC channel loading at the are the signal levels actually measured at the amplifier Note System values are the recommended values shown on the system map Measured values 4 4 1 Forward Balancing Requirements Make sure that the following conditions are valid for the amplifier before you start to balance 4 4 2 The system map is marked with amplifier output levels for bandedge frequencies Forward balancing carriers set at the proper levels are injected into the cable network from the headend One forward balancing carrier is available at a lower bandedge One forward balancing carrier is available at a higher bandedge Operating voltages are correct refer to Section 4 1 2 if necessary All tap outlets ends of feeder cables and unused active RF ports are terminated with a 750 impedance Unscrambled ALC carriers are injected into the system at the assigned frequency for the amplifier if ALC is to be used Preceding amplifiers have been properly balanced and provide the desired forward band signals to the amplifier for forward balancing Forward Balancing Procedure Refer to Figures 2 1 to 2 5 and Table 2 1 for control and accessory locations 1 Determine the System Forward High and Low Balancing Levels m If bandedge carriers are used for balancing copy the amplifier bandedge carrier output levels from the system map to the Map Signal Information table on the Amplifier Data Sheet l
47. SEQ 750 19 18 8 17 8 17 4 12 3 9 1 6 9 4 8 2 7 1 0 23 7 SEQ 750 20 19 8 19 0 18 5 13 2 9 5 7 2 5 0 2 8 1 0 25 0 SEQ 750 21 20 8 19 8 19 3 13 4 10 0 7 5 5 2 2 9 1 0 26 3 SEQ 750 2 2 2 8 2 8 2 8 2 5 2 3 2 2 2 1 2 1 2 0 1 1 SEQ 750 4 2 4 5 4 4 4 3 3 6 3 1 2 8 2 5 2 2 2 0 3 3 SEQ 750 4 3 5 5 5 4 5 3 4 7 4 1 3 8 3 5 3 2 3 0 3 3 SEQ 750 5 5 8 9 8 6 8 6 7 6 6 9 6 3 5 8 5 4 5 0 5 0 Passband Flatness 0 3 dB Document number 600563 Revision H Return Loss I O 18 16 dB MX0507 RevE Reference Tables A 5 Table 4 SCS 750 Series Cable Simulators Insertion Loss in dB at Freguency MHz dB of cable simulated at Model Number 54 70 80 222 350 450 550 650 750 350 450 550 650 750 SCS 750 02 1 0 1 0 1 0 1 3 1 5 1 6 1 7 1 8 1 8 0 7 0 8 0 9 1 0 1 1 SCS 750 03 1 0 1 0 1 0 16 20 2 2 2 4 2 6 2 8 1 5 1 7 19 24 2 3 SCS 750 04 1 0 1 0 1 1 19 24 27 30 3 3 3 5 2 2 25 28 30 3 3 SCS 750 05 1 0 1 1 1 2 2 3 3 0 34 39 43 46 3 2 36 40 44 48 SCS 750 06 1 0 1 1 1 3 3 1 3 9 4 5 5 1 5 7 62 46 5 2 5 8 64 7 0 SCS 750 07 1 0 1 1 1 3 3 3 42 4 9 5 6 6 2 6 8 5 0 57 64 7 0 7 6 SCS 750 08 1 0 1 1 1 5 3 4 4 7 5 6 6 3 7 1 7 8 5 9 6 7 7 5 8 2 9 0 SCS 750 09 1 0 1 2 15 40 54 64 7 3 8 2 9 0 6 9 7 9 8 8 9 7 10 5 SCS 750 10 1 0 1 2 15 4 1 5 7 67 77 87 95 7 4 84 94 104 11 2 SCS 750 11 1 0 1 2 15 4 3 64 7 6 8 7 9 8 10 7 8 4 9 6 10 7 11 9 12 8 SCS 750 12 1 1 1 6 2 0 5 1 7 0 8 3 9 5 10 7 11 8 9 4 10 7 11 9 13 2 142 SCS 750 13 1 1 1 6 2 0 54 75 89 102 116 12 7
48. aceplates are shown in a different typeface for example ALC This manual uses the following notes cautions and warnings WARNING Personal injury could result if instructions are not followed N CAUTION Equipment damage may result if instructions are not followed Note Read for added information and reminders A note can tell you when a service interruption could occur MX0507 RevE Introduction 1 1 1 2 Statements of Compliance FCC Compliance This device complies with the Code of Federal Regulations Title 47 Part 15 of the FCC Rules Operation is subject to the following two conditions 1 This device may not cause harmful interference and 2 this device must accept any interference received including interference that may cause undesired operation Changes or modifications to this device not expressly approved by C COR net may cause the operation of this device to be in violation of Part 76 of the FCC Rules voiding the user s authority to operate the equipment CE Compliance This device conforms to the protection requirements of Council Directive 89 336 EEC on the approximation of the laws of the Member States relating to electromagnetic compatibility UL Listed 117 Volt line extender models have met the Professional Video and Audio Equipment safety requirements of UL and cUL Standard 1419 1 3 Warranty C COR net shall at its expense correct any defect in material and workmanship in products
49. ain listed on a C COR net Amplifier Specification Sheet is the gain at the high bandedge frequency and includes 1dB of loss for the forward equalizer 4 Calculate the true amplifier gain by subtracting the input high balancing carrier signal level measured at Port 1 from the output signal level measured at Port 3 The difference should equal the operational gain of the amplifier at the balancing carrier minus insertion losses from accessories installed in the forward path Refer to Section A 1 2 to determine insertion losses at the high carrier frequency Replace the RF module if the amplifier gain measured at any port is out of tolerance 5 If present reset ALC MAN Switch or TLC MAN Switch to ALC TLC 6 If necessary adjust the ALC SENSITIVITY control as described in Section 4 4 2 5 5 Return Path Field Testing hybrid can damage amplifier active components Do not use test signals greater than CAUTION RF signal levels greater than 30 dBmV 1 NTSC channel loading at the 30dBmV at the hybrid 30dBmV 90 This procedure verifies that the amplifier W 15 balanced to the correct reverse signal levels W provides the specified gain of reverse RF signals The following procedure requires the use of a signal level meter SLM more comprehensive test involves sweeping the entire bandwidth with an appropriate sweep generator receiver especially when response problems at specific frequencies are suspec
50. cessary remove the accessory or stripline from the STATION FWD EQ area and install the selected cable equalizer or cable simulator 10 Measure the new Forward High Balancing Carrier Level and record the adjusted value as shown in the box that follows Calculate the PAD Value MX0507 RevE Configuration 4 11 Measured Forward High System Forward High PAD Value Balancing Carrier Level Balancing Carrier Level 11 12 13 14 15 Select an SPB PAD that has a flat loss within 0 5 dB of the PAD Value If necessary remove the accessory or stripline from the FORWARD PAD and install the selected attenuator PAD Measure both forward balancing carrier levels and verify that the signal level of the Forward High Balancing Carrier is within acceptable tolerance typically 0 5 dB of the specified system level If the signal level is not within tolerance rebalance or troubleshoot the amplifier Record both forward balancing carrier levels in the Internal MAN box of the Forward Signal Levels table on the Amplifier Data Sheet Record the Forward EQ and Forward Pad values on the Amplifier Data Sheet For amplifiers with TLC set the TLC MAN Switch to the TLC position Record both forward balancing carrier levels in the Internal TP ALC TLC Active box in the Forward Signal Levels table on the Amplifier Data Sheet located in Appendix C ALC SENSITIVITY control Several complete rotations of the control can be r
51. crease the ALC pilot carrier to the level initially measured in Step 3a to ensure proper ALC tracking 19 Close the housing and replace the caps on all external testpoints Refer to Section 3 5 Closing and Tightening as necessary Note It may take 15 minutes for the TLC output levels to stabilize after the cover is closed 4 5 Reverse Balancing The reverse path transmission is becoming more important as new services are added For signals on the reverse path to arrive at the headend at the correct level and with as little distortion as possible the reverse path must be properly balanced In a network that is properly reverse balanced the reverse signals on each leg arrive at each succeeding amplifier at the same level and tilt this is called unity gain A cascade with unity gain keeps signal distortions to the lowest levels possible In most systems the reverse band will have a tilt of 0 dB between the low and high reverse bandages The following sections cover the single person and the two person reverse balancing procedures These procedures assume the forward Balancing Requirements of Section 4 4 1 are met When balancing the reverse path keep in mind the following W Balance the forward path first and ensure that it is trouble free W The network must be free of ingress W Youare trying to achieve constant inputs at the reverse input port of each amplifier To do this you must adjust signal level and tilt in the reverse path
52. duction 2 port 1 GHz full lid housing modified for 117 VAC power supply 2 port 1 GHz full lid housing modified for 117 VAC power supply and detachable AC power cord Table 1 3 Housing Dimensions Measurement 9 7 inches 24 5 cm 12 4 inches 31 5 cm 4 8 inches 12 2 cm 3 4 inches 8 64 cm 15 Ibs 6 8 kg MX0507 Rev E 2090XW uononponu 6 1 Table 1 4 E700 Series Line Extender Inputs and Outputs 1 Model Information Forward Reverse Minimum Inputs Outputs Minimum Outputs dBmV dBmV Inputs dBmV dBmV Model Oper 862 750 550 250 54 862 750 550 250 54 dBmV dBmV dBmV dBmV Number ational MHz MHz MHz MHz MHz MHz MHz MHz MHz MHz MHz 5MHz MHz 5MHz max MHz 629 1 31dB 15 8 46 39 42 42 E70CLxKB4Bxxx 21dB 10 9 8 5 8 5 31 28 24 5 21 170 17 350 35 40 40 E70CJxxx4Bxxx 21dB 10 9 8 5 8 5 31 28 24 5 21 170 17 350 35 42 42 E71CLxxx4Bxxx 28dB 11 5 10 5 8 7 5 39 5 36 30 5 27 170 17 350 35 40 40 E71CJxxx4Bxxx 28dB 11 5 10 5 8 7 5 39 5 36 30 5 27 17 17 35 35 42 42 E72CL xx4Cxxx 30dB 17 5 15 10 5 8 47 5 44 38 5 35 17 17 35 35 40 40 E72CL xx5Cxxx 30dB 17 5 15 10 5 8 47 5 44 38 5 35 17 17 37 37 40 40 E72CJ xx4Bxxx 28 dB 11 5 10 5 8 7 5 39 5 36 30 5 27 170 17 350 35 42 42 E72CJ xxACxxx 30dB 17 5 15 10 5 8 47 5 44
53. e housing cannot come off of the strand but is still free for adjustment 5 Position the housing at a location on the strand that is accessible for attaching cables and performing maintenance and balancing and that complies with the requirements of the system 6 Torque both the clamp and EMB bolts to between 40 and 66 in Ibs 4 5 to 7 5 N m 1 inch clamp bolt washer 1 inch clamp bolt 1 clam washer O ring Strand Clamp strand Assembly clamp lt O _ O ring Extension Strand 2 INC said Bracket TF EMB bolt Top Strand Clamp Boss lt lock washer Figure 3 2 Strand Mounting 3 3 3 Direct Wall Pedestal Mounting Using Back Mounting Bosses 1 Measure the thickness of the surface on which the housing will be located 2 Plan the installation to provide enough clearance around the housing to install the cable and cable connectors and to ensure access to all housing testpoints and internal electronic components You may need to shim drill access holes or provide cut outs 3 Drill mounting holes in the mounting surface if required Use a 9 32 inch 7 mm diameter drill for inch diameter bolts See Figure 3 3 for distances between mounting holes for back mounting bosses 4 Select appropriate length 14 20 UNC mounting bolts not supplied washers and a split lock washer to allow a threaded bolt length of 1 4 to 3 8 inch 6 to 10mm to extend into the housing See Table 3 1 Mounting Bolt Select
54. e to expose the circuit board Note After the installation of a Reverse Hybrid amplifier performance should be verified Realignment may be necessary MX0507 RevE Configuration 4 17 4 6 2 2 1 4 6 2 3 4 18 DRM Installation Kits 173342 05 06 For E7 with Passive Reverse only a Locate the capacitor across the Reverse Hybrid location Refer to Figure 4 7 if necessary b Using needle nose pliers remove the capacitor It is not soldered to the circuit board Examine the pins on the reverse hybrid supplied in the kit Ensure that the pins are straight Apply a thin coat of thermal joint compound to the bottom of the reverse hybrid Align the pins of the reverse hybrid with the holes on the motherboard Firmly press the reverse hybrid down to the motherboard Insert the two hybrid mounting screws supplied in the upgrade kit through the bottom of the RF module as shown in Figure 4 3 Using the 2 Phillips screwdriver tighten the screws to secure the reverse hybrid to the RF module Torque to between 15 and 18 in lbs 1 7 and 2 0N m Remove any excess thermal joint compound from the perimeter of the hybrid Reverse RF Module qu r bia Motherboard 4 T eee E pa LEE E i Thermal Joint RF Module Compound Chassis Pad Mounting Screws Figure 43 DRM Installation UX0124 Installation Kits 173342 02 03 07 For E7 with Passive Reverse only a Locate the capacitor across the Reverse Hybrid location
55. eping the entire bandwidth with an appropriate sweep generator receiver especially desirable when response problems are suspected 1 If present set the ALC MAN switch to the MAN position Note All measured signal levels must be temperature compensated to a common temperature before they can be accurately compared Refer to Section 4 3 for information on temperature compensation 5 2 Troubleshooting Test Procedures MX0507 RevE 2 Connect an SLM to the Port external testpoint and measure the input signal levels of both forward balancing carriers Verify that the input signal levels are within reasonable tolerance of the measurements made during the initial balancing procedure If not find the cause of the variation external to the amplifier Correct if necessary then rebalance the amplifier FORWARD FORWARD INTERSTAGE PAD EQ EQ Y v m gt W amp z Figure 5 1 Simplified Forward Path Block Diagram Port 1 3 Connect a SLM to the Port 3 external testpoint and measure the output signal levels of both forward balancing carriers Compare the present levels to the measurements made when the amplifier was previously balanced If the current measurements are unacceptable verify that the proper accessories or striplines are still installed in all forward plug in locations and replace any accessories not in compliance with the Amplifier Data Sheet If necessary rebalance the amplifier Note The Operational G
56. equired to Note The change in output level will not be proportional to the amount of adjustment of the produce an observable change in the output level but when the control setting nears the operating range small adjustments produce large changes in output level 16 17 4 12 For amplifiers with ALC a Setthe ALC MAN switch to the ALC position Wait 30 seconds b Adjustthe ALC SENSITIVITY control while observing the system high carrier on the signal level meter SLM Rotate the control clockwise to decrease the signal level and counterclockwise to increase the signal level Stop adjusting when the output at the high carrier reaches the Forward High Balancing Carrier Level If Temperature Compensation was used balance in ALC mode for the levels calculated before Temperature Correction Values were determined c Record both forward balancing carrier levels in the Internal TP ALC TLC Active box in the Forward Signal Levels table on the Amplifier Data Sheet located in Appendix C Measure the signal levels of both forward balancing carriers at the Port 3 external testpoint and record these levels in the Forward Signal Levels table on the Amplifier Data Sheet located in Appendix C Configuration MX0507 RevE 18 If the ALC pilot carrier level was adjusted in Step 3a it should remain at the set level if the upper and lower adjacent channels are not active If the adjacent channels become active after initial balancing de
57. evision Return Loss l O 18 16 dB MEQT 33 Document number 600686 Revision MX0507 RevE Reference Tables A 9 30 AND 30 Series Cable Egualizers Insertion Loss in dB at dB of cable equalized at Freguency MHz Model Number 5 30 30 300 450 550 750 MEQ 30 2 3 1 1 0 3 4 11 0 13 7 15 3 18 2 MEQ 30 3 3 9 1 0 4 9 16 0 19 9 22 2 26 5 MEQ 30 4 4 8 1 0 6 4 21 0 26 1 29 2 34 8 MEQ 30 5 5 5 1 0 7 6 25 0 31 1 34 7 41 4 MEQ 30 6 6 4 1 0 8 9 29 0 36 1 40 3 48 0 MEQ 30 7 7 1 1 0 10 1 33 0 41 1 45 8 54 7 MEQT 30 2 5 1 2 5 4 3 14 0 17 4 19 4 23 2 MEQT 30 4 6 3 2 5 6 4 21 0 26 1 29 2 34 8 MEQT 30 6 7 6 2 5 8 5 28 0 34 8 38 9 46 4 Passband Flatness 30 0 2 dB p v MEG 30 Document number 600597 Revision MEQT 65 0 4 dB 30 Document number 600599 Revision Return Loss 1 0 18 16 dB Table A 11 SEQPB Series Cable Attenuators PADs Model Number 5 1000 MHz Flat Loss dB SEQPB 01 1 0 SEQPB 1 5 1 5 SEQPB 02 2 0 SEQPB 03 3 0 SEQPB 04 4 0 SEQPB 05 5 0 SEQPB 06 6 0 SEQPB 07 7 0 SEQPB 08 8 0 SEQPB 09 9 0 SEQPB 10 10 0 Passband Flatness 0 3dB Document number 600668 Revision F Return Loss 19dB SEQPB 01 to SEQPB 06 18 5dB SEQPB 07 SEQPB 10 Slope 0 2 to 0 7dB 10 Reference Tables MX0507 RevE Table A 12 SPB Series Cable Attenuators PADs Model 5 1000 MHz Model 5 1000 MHz Model 5 1000 MHz Model 5 1000 MHz Number Flat Loss Number Flat Loss Number Flat
58. g Flow Diagram 1 of 2 Troubleshooting Test Procedures 5 6 sheet 1 FWD RF signal input levels correct Check previous amplifier for output and cable and connectors for damage Verify that all EQs and PADs are securely in place If so and FWD RF signal the outputs are still incorrect output levels replace the RF module and correct rebalance If still not within range replace the housing REV RF Check cable on output port rahe for damage Check next input levels amplifier in chain away from correct headend Verify that the Reverse PAD REV RF and EQ are securely in place signal If so and outputs are still output levels incorrect replace the RF correct module If still not within range replace the housing Troubleshooting procedure has been successfully completed All amplifier voltage and signal levels are correct Figure 5 3 Troubleshooting Flow Diagram 2 of 2 Troubleshooting Test Procedures MX0507 RevE Chapter 6 Maintenance This chapter discusses the installation and or replacement of fuses power supplies RF modules and housings Section 6 1 General Inspection page 6 1 Section 6 2 Fuse Brass Shorting Bar Slug Replacement page 6 1 Section 6 3 RF Module Replacement page 6 2 Section 6 4 H E Power Supply Replacement page 6 3 Section 6 5 Housing Replacement page 6 4 6 1 General I
59. g removal of the RF module and service interruption CAUTION Do not back centerseizure screws out more than two full turns Centerseizure 1 For each port use a 2 Phillips screwdriver to turn the centerseizure screw clockwise until it just seats then loosen it no more than two turns Refer to Figure 3 4 as needed 2 Remove the plastic cap or threaded plug from the cable entry port Refer to Figure 3 3 as needed centerseizure screws Port 3 Figure 3 4 Cable Attachment Ports with RF module removed 3 Ifusing heatshrink tubing prepare a heatshrink boot according to specifications supplied by the manufacturer Be sure that the boot covers the cable entry port insert and the entire connector The boot must also extend at least two inches 5cm beyond the back nut 4 Slide the boot further onto the cable to allow access to the end of the cable Prepare the cable end as recommended by the connector manufacturer 3 8 Housing Instructions MX0507 RevE Figure 3 5 Heatshrink Boot connectors with center conductors exceeding 0 080 inches 2 03 mm in diameter will damage the centerseizure mechanism CAUTION Do not use feed through type connectors Use type connectors only Using 6 Measure the pin length as shown in Figure 3 6 7 If the pin is longer than 1 5 inches 3 81 cm trim it to 1 5 inches 3 81 cm with wire cutters to eliminate the possibility of shorting the signal to ground Bac
60. ge Testine IUS 4 2 Calculating Balancing Carrier Levels for Linear Output Tilt Operation 4 3 Temperature 44 Forward 4 4 1 Forward Balancing 4 4 2 Forward Balancing 4 5 Reverse Balancing eene app suwaqa SRM ee MEHR 4 5 1 Single Person Reverse Balancing 4 5 2 Two Person Reverse Balancing 4 6 Active Reverse Kit Installation Instructions Introduction s ope e al lae 4 6 2 Installation 224 0655 oh eo gene hapet TS MX0507 RevE 1 1 1 1 1 2 1 2 1 3 1 9 Chapter 5 Chapter 6 Appendix A Appendix B Appendix C vi Troubleshooting Test Procedures 5 1 Field Testing Requirements 5 2 Quick Forward Outage 5 3 Power 5 4 Forward Path Field 5 5 Return Path Field Maintenance 6 1 General Inspection 1 6 2 Fuse Brass Shorting Ba
61. ge to the seizure block or connector pin Torque the centerseizure screw to no more than 8 in lbs 0 9 N m 13 Tighten the centerseizure screw down to the pin Torque to between 6 and 8 in Ibs 0 7 and 0 9 N m The centerseizure screw must be tight enough to ensure good electrical contact 14 Connect cable to the remaining cable entry ports by repeating steps 1 through 13 CAUTION The Teflon strap securing the testpoint cap to the housing will melt if exposed to an open flame Shield the strap from the flame when heating the heatshrink boot 15 Apply the weathersealing tape or compound to each connector and cable entry port or if using heatshrink slide each heatshrink boot over the entire connector and cable entry port Heat the boot to shrink it securely around the insert connector and cable as specified by the shrink tubing manufacturer 3 10 Housing Instructions MX0507 RevE 3 5 Closing and Tightening N CAUTION Ensure that no wire scraps or foreign materials remain within the housing Note Close the housing whenever it is left unattended to keep moisture out of the unit and protect the network from RF interference 1 Examine the rubber gasket and mesh seal Remove any foreign material that could interfere with proper sealing Dry any moist areas 2 Close the lid until itis flush with the rubber gasket Thread all six bolts finger tight to hold the lid in place Ensure that the lid seats
62. ies Tools Equipment Required Characteristic Use Signal Level Meter 5MHz to 1 GHz 35 to 60dBmV 25 to 1204 V Input and output signal testing Signal Generator 5 to 1GHz 10 to 60dBmV 70 to 1204 Signal input during reverse balancing Multimeter True rms AC coupled Ranges including 0 to 200 VpC 0 to 200 VAC 0 to 200mVAC Power supply testing Fixed Slope Feed thru MEQ Stripline Zero slope adjustment P N MEQ 550 0 Amplifier alignment if EQ jumpers are cut Fixed Attenuator Feed thru PAD Stripline Zero gain adjustment P N SPB 0 Amplifier alignment if PAD jumpers are cut Clamps and Bolts C COR net HB0214 or HB0216 Supplied with the amplifier Amplifier installation Extension Mounting Brackets EMBs 3 2 or 6 inch 8 or 15cm length with mounting hardware P Ns 172187 01 and 172187 03 Installation application Heat gun or approved torch and heatshrink tubing or weathersealing tape or compound Tuning Wand Non conductive Weatherproofing RF cable and fiber optic stub cable connectors ALC alignment Fuse puller Non conducting fuse puller P N FP 1 Fuse installation and removal Socket 7 16 inch 11 mm socket for torque wrench Housing closing Dust Cap C COR net P N MX0008 Cover unused ports Torque Wrench Range including 0 to 40 in Ib 4 5 N m Close housing Nutdriver 7 16 inch 11mm Open and Close
63. ion for several examples N thread engagement Any less and the bolt may not hold Bolts extending more than 3 8 inch CAUTION Bolts must be installed with at least three but not more than nine full turns of 10mm into the housing could damage the housing Do not torque mounting bolts more than 66 in lbs 7 5 N m 5 Install as shown in Figure 3 3 MX0507 RevE Housing Instructions 3 5 3 3 4 3 6 Tighten the mounting bolts Use no more than 66in lbs 7 5 N m torque The amount of torque required will depend on the mounting surface used Wall Pedestal Mounting With EMBs Place the lock washers on the bolts supplied with the EMBs and bolt the EMBs to the top bosses as shown in Figure 3 3 Tighten the bolts until the EMBs are snug but not fully torqued Measure the thickness of the surface on which the housing will be located Plan the installation to leave enough clearance around the housing to install the cable and cable connectors and to ensure access to all housing testpoints and internal electronic components Drill mounting holes in the mounting surface as required Use a 9 32 inch 7mm diameter drill for 14 inch diameter bolts See Figure 3 3 for distances between mounting holes Select appropriate length 14 20 UNC mounting bolts and nuts not supplied washers and a split lock washer to allow a threaded bolt length of 1 4 to 3 8 inch 6 to 10mm to extend into the housing See Table 3 1 Mounting Bo
64. ion sheet 1 Note the amount of cable loss the amplifier is designed to accommodate at the highest system frequency as listed under Factory Alignment Cable Loss on the Amplifier Specification sheet 2 determine the actual system cable loss at the highest frequency Refer to the System Map and note the cable insertion loss in dB preceding the amplifier being balanced or calculate the cable loss using cable length and the Manufacturer s Cable Loss Charts Either method will give the system cable loss 3 Subtract the amplifier s factory installed alignment from the system cable loss to determine the dBs of cable equalization simulation required at the highest frequency System Cable Loss Factory Alignment Cable Loss XdB 4 If XdB is positive refer to the SEQ table that lists the accessories being used in the system Select the SEO having a value as close to XdB as possible as listed in the dB of cable equalized at highest frequency column MX0507 RevE Reference Tables 1 5 If XdB is negative refer to the SCS table that lists the accessories being used in the system Select the SCS with a value as close to XdB as possible as listed in the dB of cable simulated at highest frequency column A 1 2 Using the Insertion Loss in dB at Frequency Columns A 1 2 1 Equalizer Selection positive Equalization Value Select the equalizer from the appropriate equalizer table in Section A 3 that has a tilt as
65. iplines PADs or accessories are installed 1 Obtain the Reverse High and Low Balancing Carrier Levels from the System Map for both amplifiers Record these levels in the corresponding boxes on the Amplifier Data Sheet and as indicated in the calculation boxes of Steps 3 4 and 7 2 Atthe Balancing Amplifier ensure that factory jumpers stripline or SPB 0 SEQ 0 accessories are installed in the REVERSE PAD and REVERSE EQ locations If present remove the plug in terminator SPB 99 3 At the Balancing Amplifier connect a signal generator to the Port 3 testpoint Calculate the Signal Generator Levels as shown in the following calculation box Set the signal generator to these levels and frequencies System Reverse High Testpoint Loss Signal Generator Level Balancing Carrier Level Reverse High Balancing Carrier Balancing Amp System Reverse Low Balancing Testpoint Loss Signal Generator Level Reverse Carrier Level Balancing Amp Low Balancing Carrier MX0507 RevE Configuration 4 15 4 Atthe Measuring Amplifier connect a Signal Level Meter SLM to the external testpoint for that port Measure the Reverse High and Low Balancing Carrier Levels and record them as shown in the following calculation box System Reverse High Balancing System Reverse Low Balancing System Tilt of Carrier Level Measuring Amp Carrier Level Measuring Amp Measuring Amp Measured Reverse High Measured Reverse Low Measured Tilt
66. is present at fuse input but not at the outputs right fuseclip output check for a blown or misaligned fuse Replace or reinsert the fuse If the fuse blows when reinserted check the distribution system for short circuits Port 3 Centerseizure Screw See Table 4 3 If power is acceptable at the THRU POWER FUSE if thru powering 1 Attach the ground lead to the amplifier housing 2 Notapplicable to units with a 117 VAC linear power supply output but unacceptable at the Port 3 centerseizure screw replace the RF module Table 4 3 AC Test Values Powering Option 60 Volt Linear Power Supply 90 Volt Linear Power Supply Multimeter Setting Acceptable Range AC voltage 0 200 VAC 40 60 VAC AC voltage 0 200 VAC 60 95 VAC AC voltage 0 200 VAC 40 95 VAC 90 Volt H E Power Supply 4 4 Configuration 0507 Rev E Table 4 4 DC Testpoints and Test Values Testpoint Multimeter Power Acceptable Troubleshooting when Setting Supply Range Unacceptable RAW DC T P DC voltage Linear P S 28 35VDC Adjust the Raw DC selector switch 0 200 VDC Only Replace the RF module DC voltage Linear P S 22 8 25 2VDC Replace the RF module 200V ZNO VDE H E P S 23 5 24 5 VDC Replace the power supply REV DC voltage Linear P S 22 8 25 2VDC Replace the RF module 0 200 VDC Only B T P AC voltage Linear P S lt 20mVAC Replace the RF module AC Ripple 0 200mVAC H E P S lt 15
67. k Nut Nut Connector Body m E Back Nut Main Nut Connector Body not more than 0 080 inches 2 03 diameter Minimum 1 50 in 3 81 Maximum 1 70 in 4 32cm External threads located on back nut Variations Figure 3 6 Cable Connector Assembly 8 Apply anti seize compound to threads and O ring Do not use spray lubricant beyond the centerseizure screw but does not touch the RF chassis or housing Ensure that no wire scraps or foreign materials remain within the housing CAUTION Avoid contact of the connector pin to the chassis Be certain the pin extends 9 Thread the connector body into the cable entry port Be sure that the pin extends through the centerseizure block but does not touch anything else inside the housing MX0507 RevE Housing Instructions 3 9 10 Slide the back nut onto the cable and away from the end Make sure the threaded end of the nut is facing the cable entry port 11 Slide the cable into the main nut with the outer conductor shield outside the radiation sleeve Make sure the end of the cable shield bottoms against the main nut 12 Thread tighten and torque the cable connector assembly according to specifications supplied by the manufacturer Hold the cable firmly in position while tightening the connector hardware CAUTION Avoid dama
68. lt Selection for several examples Use flat washers on the back side of any mounting surface that is made of compressible material Align the EMB flange holes with the wall mounting holes Insert the bolts through the aligned holes slip a lock washer over the end of each bolt and thread and finger tighten the nuts onto the bolts Tighten the mounting bolts Use no more than 66in lbs 7 5 N m torque The amount of torque required will depend on the mounting surface used Housing Instructions MX0507 RevE Wall Mount Bosses 9 0 inches 22 86 cm External Testpoint Top Strand Clamp Bosses External Testpoint 5 5 inches 14 0 cm Jm Y inch EMB bolt lock washer Table 3 1 Mounting Bolt Selection port insert washer mounting bolt Minimum Wall Thickness Bolt Length 1 16 inch 1 6mm 3 8 inch 10mm Extension 1 4 inch 6mm 5 8 inch 16mm Mounting 1 2 inch 13mm 7 8 inch 22mm Bracket P i Nu Top Strand SS Clamp Boss Figure 3 3 Wall Pedestal Mounting MX0507 RevE Housing Instructions 3 7 3 4 Cable Attachment WARNING Hazardous voltages are present Use approved safety procedures Turn off all power sources feeding into the unit before installing the cable and connectors screws are not captive If backed out more than two full turns the screws may fall out into the housing and under the RF module possibly causing short circuits and definitely requirin
69. lts at the ends of the unit 3 While holding the cover closed with one hand release the last two captive cover bolts and open lower the cover Preparing for Installation Note Check the unit for damage If there is shipping damage contact the shipping company and the C COR net Shipping Department 3 2 Ensure that the following are included with each housing 1 mounting hardware kit P N HB0214 consisting of two strand clamps two split lock washers two l inch long 4 x20 bolts two rubber O ring retaining dust caps P N MX0008 for each unused port 2 Inspect the outside of the housing a Check the convection fins cable entry ports cover bolts and all testpoint connectors for damage refer to Figure 3 1 b Make sure that each port hole is plugged with a plastic insert 3 Open the housing instructions in Section 3 1 4 Inspect the rubber gasket on the housing base and the metal mesh gasket on the lid Be certain they are firmly seated and unbroken Housing Instructions MX0507 RevE 629 E7 w Linear Power Supply aO lil flat lid housing full lid housing optional va E73C E7 E77 862 MHz with 117 w 90 with 117 Power Power Supply Power Supply Supply
70. manufactured by C COR net which may appear within the warranty period as set forth herein C COR net MAKES NO OTHER REPRESENTATION OR WARRANTY OF ANY OTHER KIND EXPRESS OR IMPLIED WITH RESPECT TO THE GOODS WHETHER AS TO MERCHANTABILITY FITNESS FOR A PARTICULAR PURPOSE OR ANY OTHER MATTER The warranty period is as follows 1 Distribution electronics such as amplifiers main line passives and power supplies five 5 years from date of shipment 2 AM fiber optic products three 3 years from date of shipment 3 Cable Network Manager CNM network management software and associated equipment fifteen 15 months from date of shipment Network Management Transponders NMT warranted as unit in which they are installed for a maximum of three 3 years When installed in units already in the field NMT will have remaining warranty of that unit up to three 3 years and no less than one 1 year 4 Terminal modem and translator products one 1 year from date of shipment 5 Specialty goods manufactured in the C COR net Equipment Service Center CATV products three 3 years from date of shipment DATA products one 1 year from date of shipment 6 Allother goods ninety 90 days from date of shipment The C COR net warranty shall not cover fuses batteries and lamps It does cover transistors and integrated circuits to the extent that C COR net is warranted by the original manufacturer Modifications or alterations of C
71. nspection Inspect the entire unit for the following each time maintenance and adjustments are done W damaged missing gaskets rubber in the base or metal mesh in the lid loose modules or assemblies missing open blown loose or misaligned fuses heat damage burn marks charred components water damage 6 2 Fuse Brass Shorting Bar Slug Replacement WARNING Hazardous voltages are present Use approved safety equipment and procedures Do not energize any station until all other stations in the power supply group have been installed CAUTION Improper fuse installation can m damage the amplifier m fail to power the amplifier m fail to distribute thorugh power Damaged fuseclips or misaligned fused can cause heat damage Do not force or misalign the fuse when installing MX0507 RevE Maintenance 6 1 Removal 1 Remove the fuse slug using a fuse puller In 117 VAC powered units remove the fuse cap by turning the cap counter clockwise about turn using your fingers or a screw driver as needed The fuse will pop up for easy removal Refer to Chapter 2 Figures 2 1 to 2 5 for fuse locations 2 Inspect for the following W fatigue cracks or corrosion in both leaves of the fuseclips broken connections between the fuseclips and the circuit board heat damage on the circuit board 3 Ifpower supply damage is evident replace the damaged power supply see Section 6 4 Installation For non 117 VAC
72. ocated in Appendix C m Ifotherthan the bandedge carriers are used for balancing calculate the balancing carrier levels see Section 4 2 if not already done Record these levels in the Map Signal Information table on the Amplifier Data Sheet located in Appendix C MX0507 RevE Configuration 4 9 2 Temperature correct the System Forward High and Low Balancing Carrier Levels a Record the current air temperature on the Amplifier Data Sheet b Follow the procedure outlined in the following table Need Procedure Temperature Compensation Perform temperature correction according to Section 4 3 Record the corrected values in the System High and Low above 90 32 Balancing Carrier Levels calculation boxes as shown in steps 5 and 7 below 50 F 10 If the air temperature changes more than 20 F 11 C while balancing the amplifier recalculate the temperature compensation Copy the Forward High Low Balancing Carrier Levels from the Map Signal Information table on the Amplifier Data Sheet 10 and 32 to the calculation boxes in steps 5 and 7 Note The carriers adjacent to the ALC pilot carrier affect the performance of the ALC circuit If these adjacent carriers will be used in the active system ensure that either the adjacent carriers are on during ALC circuit adjustment or the ALC carrier level has been adjusted to compensate for the absence of these carriers Otherwise the
73. on MX0507 RevE 4 6 Active Reverse Kit Installation Instructions CAUTION Modifications or alterations of C COR net products except as performed by C COR net or its authorized representative will void the product warranty Contact the C COR net Equipment Service Center for more information 1 814 231 4437 or 4444 4 6 1 Introduction These installation instructions provide bench procedures for installing the following Active Reverse Upgrade Kits Table 4 5 Active Reverse Upgrade Kits Part Models Covered Reverse Reverse Number Gain Hybrid 173342 02 E729B with linear power supply 18 dB UX0124 173342 03 E7xx with linear power supply 18 dB UX0124 173342 05 E7xx with linear power supply 20 dB DRM 173342 06 E7xx with H E power supply 20 dB DRM 173342 07 E7xx with H E power supply 18 dB UX0124 1 E729B line extenders require the installation of diplex filters Diplex filters are not provided with reverse upgrade kits and must be purchased separately Contact your C COR net sales representative for details 4 6 2 Installation CAUTION Observe electrostatic discharge precautions when handling electronic components 4 6 2 1 Preparation for Reverse Kit Installation All Reverse Kits 1 Open the housing and remove the RF module referring to the instructions in Sections 3 1 and 6 3 as necessary 2 Using a 42 Phillips screwdriver remove the eight screws securing the faceplate to the RF module Remove the faceplat
74. ower Passing 10A maximum continuous current for units with 60 VAC Supplies 13A for 90VAC and 117 VAC Supplies Operating 40 to 140 F 40 to 60 C Temperature Range ALC Automatic level control TLC Thermal level control NLC No level control passive no amplification 11dB loss 5dB loss for E77 passive 18dB active standard reverse gain 20dB active high reverse gain 1 The listed characteristics are for current and previous models Some models and characteristics may no longer be available Contact your C COR net sales representative for specific information 2 To reduce the risk of fire or electrical shock do not expose this appliance to rain or moisture MX0507 RevE Introduction 1 3 Table 1 2 Line Extender Power Supplies and Housings Line Extender Powering Housing E77D 117 VAC d 70 a b e f g h E71C a b e f g h E72C a b c e f g h E73C a b c e f g h E73C 117 VAC d i E729 a b f g h E629 a b f g h Powering Housing a 60 60Hz linear power supply f 4 port 1 GHz full lid housing b 60VAc 50 60 Hz linear power supply g 2 port 1 GHz full lid housing 60 Hz linear power supply h 2 port 1 GHz flat lid housing d 117 60Hz linear power supply e 90 60Hz H E power supply transformerless reguires a full lid housing Dimension Height Width Depth full lid Depth flat lid Weight full lid 1 4 Intro
75. r Slug 63 Module Replacement 6 4 Power Supply 6 5 Housing Reference Tables Use Of Accessory Tables A 1 1 Using the dB of cable equalized at highest frequency Column A 1 2 Using the Insertion Loss in dB at Frequency Columns A 2 Installing Plug in A 3 Accessoty TADIES Soe BAe EAS Functional Block Diagrams FlexNet amp 700 Series Line Extender Amplifier Data Sheet 5 1 5 2 5 2 5 2 5 3 6 1 6 1 6 1 6 2 6 3 6 4 1 1 1 2 2 3 1 1 MX0507 RevE Chapter 1 Introduction Table 1 1 Line Extender RF Module Characteristics Table1 3 Housing Table 1 2 Line Extender Power Supplies Housings Table 1 4 E700 Series Line Extender Inputs and Outputs Table 1 5 E7 FlexNet 700 Series LE P N Designators Model Options Table 1 6 Equipment Tools and Supplies List of Tables Chapter 2 Physical Identification Table 2 1 Testpoints Plug in Locations Connections and Parts
76. re Correction If available historical Amplifier Data Sheets will aid in troubleshooting a faulty amplifier Verify the following prior to beginning any test procedure the amplifier is grounded tap outlets active unused ports ends of cables and branch points are terminated with a 750 impedance atrue RMS AC coupled voltmeter is available for AC voltage measurements Non true RMS AC voltmeters will read up to 10 higher than actual value DC voltage measurements will not be affected MX0507 RevE Troubleshooting Test Procedures 5 1 5 2 Quick Forward Outage Check This check is not a comprehensive test of all amplifier functions The steps listed here can help you quickly determine whether or not an amplifier is causing a signal outage to subscribers downstream in the forward path especially when no automated status monitoring is used Do the following at a suspect amplifier 1 Measure the output signal from Port 3 at the external testpoint using a signal level meter Measure an active frequency channel that has historical or designed values to compare against 2 Ifthe output signal is at a reasonable level check devices further down the signal path If not check the input signal level at the Port 1 external testpoint 3 If the input signal is at a reasonable level but the output signal is not use the following troubleshooting sections in the book to see if this amplifier is the source of the outage If the
77. rn loss at input and output ports Amplifier realignment is required after installing diplex filters to meet factory specifications and to prevent these problems Note Contact the C COR net Equipment Service Center for more information tel 1 814 231 4437 or 4444 1 Referring to Figure 4 7 locate the two capacitors and one inductor installed at each diplex filter location Input Diplex Filter location C55 L19 and C54 m Output Diplex Filter location C59 L22 and C60 circuit board 4 CAUTION When installing diplex filters do not disturb any components on the diplex filter 2 Carefully cut away these capacitors and inductors Do not disturb or remove any other components 3 Orient the diplex filters so that their pins align with receptacles on the module motherboard Firmly press the diplex filters down onto the motherboard 4 6 2 6 Completing Reverse Kit Installation all kits Note Marking the faceplate of a modified amplifier may assist future maintenance efforts Position the faceplate on the RF module and secure it using the screws removed in Section 4 6 2 1 2 Install the RF module and close the housing referring to the instructions in Sections 3 5 and 6 3 as necessary 3 Verify the performance of the amplifier on both the forward and reverse paths Field test procedures are provided in Sections 5 4 and 4 4 MX0507 RevE Configuration 4 21 Input Forward Forward Ou
78. s a week on the C COR net Technical Support Hotline Technical Support Hotline 888 827 2267 Or call C COR net worldwide headquarters Monday through Friday 8 AM to 5 PM ET 5 and ask for the Applications Engineering and Training Department State College Office 1 814 231 4422 Toll Free 800 233 2267 E Mail Send an e mail including the contact information listed in Contact Information techsupport c cor net Internet Visit us on the World Wide Web at http www c cor net From the C COR net home page you can m Submit your problem or Technical Publication request electronically Services gt Technical Support gt Technical Support Form or m Download a product manual if currently available Services gt Technical Support gt Technical Documentation MX0507 Rev E iii Send fax with a cover sheet including the information listed in Contact Information 814 237 5831 Mail Send your letter including the information listed in Contact Information Attn Applications Engineering and Training Department C COR net Corp 60 Decibel Road State College PA 16801 7580 USA Providing Feedback on this Publication C COR net welcomes your suggestions and assistance in identifying any errors inaccuracies misleading information Please contact our Technical Publications Department with an e mail referencing the document number and page number s to which the feedback applies Send your e mail
79. se Signal Levels Testpoint Forward Forward Testpoint Reverse Reverse High Carrier Low Carrier High Carrier Low Carrier P1 input P1 output P3 dist output P3 input Internal TP MAN Internal TP ALC TLC Active Power Supply Information Power Supply Type Fuse Values Voltages MAIN FUSE AC Volts Raw DC THRU POWER FUSE Ripple Reverse 2 FlexNet amp 700 Series Line Extender Amplifier Data Sheet MX0507 RevE Index A accessories cable egualizer selection A 2 cable simulator selection A 2 installation A 2 accessory tables A 3 MCS 550 series cable simulators A 7 30 series cable egualizers A 10 33 series cable equalizers 9 42 series cable egualizers 9 MEO 55 series cable egualizers A 8 550 series cable egualizers 7 MEO 65 series cable equalizers A 8 MEOT 30 series cable egualizers A 10 MEOT 33 series cable egualizers A 9 MEOT 42 series cable egualizers A 9 MEOT 55 series cable equalizers A 8 MEOT 550 series cable egualizers A 7 MEOT 65 series cable egualizers A 8 SCS 750 series cable simulators A 6 SCS 862 series cable simulators A 4 SEQ 625 series cable equalizers 6 SEQ 750 series cable equalizers A 5 SEQ 862 series cable equalizers A 3 SEQPB series cable attenuators PADs A 10 SPB series cable attenuators PADs A 11 use of A 1 active reverse upgrade kits 4 17 B bandwidth 1 3 1 8 block diagrams B 1 C cable equalization selection
80. sembly The inset in the lower left of Figure 3 3 shows EMBs attached to the Top Strand Clamp Bosses for wall mounting 3 3 1 1 3 3 2 3 4 General Strand Mounting Attach the strand clamp assemblies to the top strand clamp bosses or to the EMBs if used with the 1 inch clamp bolts and washers see Figure 3 2 threading the bolts four or five turns Hoist the housing to the strand and hang itin position Use the hardware kit HB0214 to attach the strand to the Top Strand Clamp Bosses Tighten the clamp bolts enough that the housing cannot come off of the strand but is still free for adjustment Position the housing at a location on the strand that is accessible for attaching cables and performing maintenance and balancing and that complies with the requirements of the system Torque the clamp bolts to between 40 and 66 in lbs 4 5 to 7 5 N m The bolts should tighten at three to four full turns into the housing Strand Mounting With EMBs Attach the EMBs to the top strand clamp bosses with the EMB bolts and lock washers provided with the EMB assembly as shown in Figure 3 2 Finger tighten the bolts against the EMBs Attach the strand clamp assemblies to the EMBs with the 1 inch clamp bolts and washers see Figure 3 2 threading the bolts four or five turns Housing Instructions MX0507 RevE Hoist the housing to the strand and hang it in position 4 Tighten the clamp bolts enough that th
81. sjeusig 4 peurquioo 4 pue 10815 tj pus OV I Figure B 3 E629 Functional Block Diagram MX0507 RevE Functional Block Diagrams B 4 Appendix FlexNet 700 Series Line Extender Amplifier Data Sheet This appendix provides a Data Sheet that can be used for recording specific information for each E7 line extender Keep a copy of the Data Sheet for each line extender in your system Data Sheets are particularly helpful for providing historical information when troubleshooting the line extender 7 e Tip Information collected on the E7 line extender is useful for assembling a database for OS CNM as well as troubleshooting line extender MX0507 RevE FlexNet amp 700 Series Line Extender Amplifier Data Sheet C 1 FlexNet 700 Series Line Extender Amplifier Data Sheet System Map Information Amplifier Model Map Serial Amplifier System P S Cascade Location Air Temp Map Signal Information Forward High Low TCV Reverse High Low Balancing Carriers Balancing Carriers Frequency or Channel n a Signal Levels Pre Selected Accessories INTERSTAGE EQ Measured Data Technician Selected Accessories FORWARD EQ REVERSE EQ FORWARD PAD REVERSE PAD Measured Signal Information Forward Signal Levels Rever
82. ted MX0507 RevE Troubleshooting Test Procedures 5 3 Note measured signal levels must be temperature compensated to temperature before they can be accurately compared Refer to Section 4 3 Connect a signal generator to the Port 3 external testpoint Set the signal generator to output the correct Reverse High Balancing Carrier Level 25dB to overcome testpoint loss at the proper freguency Connect a signal level meter to the Port 1 external testpoint and measure the output signal level of the Reverse High Balancing Carrier Compare the current level to the measurements made when the amplifier was previously balanced If the current measurement is unacceptable verify that the proper accessories or striplines are still installed in all reverse plug in locations and replace any accessories not in compliance with the Amplifier Data Sheet If necessary rebalance the amplifier Note The Operational Gain listed on a C COR net Amplifier Specification Sheet is the gain at the high bandedge frequency and includes 1 dB of loss for the reverse equalizer 5 4 Calculate the true reverse amplifier gain by subtracting the input signal level set in Step 1 from the output level measured at Port 1 The difference should equal the operational gain of the amplifier at the balancing carrier minus insertion losses from accessories installed in the reverse path Refer to Section A 1 2 to determine insertion losses at
83. to techpubs c cor net iv MX0507 RevE Chapter 1 Chapter 2 Chapter 3 Chapter 4 Table of Contents List 96 Tables 5 e x illa CRS A a List Of F1g tes iL nb deem ene rS Introduction ll Conventions e re cox UR DOR 1 2 Statements of 1 37 ARA AUR 1 4 OVERVIEW RE I RR TAE 1 5 Required Equipment Tools and 16 Related Documents Physical Identification Housing Instructions 3 4 Housing 32 Preparing for 4 33 Housing 3 3 1 General Strand Mounting 3 3 0 Strand Mounting With 3 3 3 Direct Wall Pedestal Mounting Using Back Mounting Bosses 3 3 4 Wall Pedestal Mounting With EMBs 4 Cable Attachments as utu Sete ean ee IUE s 3 5 Closing and Tightening Configuration 4 1 Power Supply Configuration 41 1 Power Supply Setup 4 1 2 Volta
84. tpoints plug in locations connections and parts for FlexNet 700 Series Line Extenders Identical items in the same location as in Figure 2 1 are not identified again in Figures 2 2 2 3 2 4 and 2 5 Figure 2 1 E7 Line Extender w H E Power Supply page 2 2 with Automatic Level Control ALC or no level control and an H E Power Supply Figure 2 2 E7 Line Extender w Linear Power Supply page 2 3 with Thermal Level Control TLC and a Linear Power Supply Figure 2 3 E7 Line Extender w 117 Vac Linear Power Supply page 2 4 with no level control NLC and a 117 VAC Linear Power Supply Figure 2 4 E629 Line Extender page 2 5 Figure 2 5 E7 862MHZ117V Line Extender page 2 6 862MBHBz with NLC and 117 Vac Linear Power Supply MX0507 RevE Physical Identification 2 1 HOLD DOWN PORT MODULE HOLD DOWN COR za LINE EXTENDER REV a SPACING 4 BALANCING Y DANGER EI VOLTAGE e ALC SENSITIVITY REVERSI 17 CURRENT PASSING PAPABILITY VA N POWER PLUG 16 11 CCO ELECTRONICS amp 4 SWITCHING REGULATOR POWER SUPPLY KK gt No gt SES 029 CC 9191510101019 119551019 29 29 9 95 9 9 59 9 O KP O Figure 2
85. tput Diplex Filter Input Hybrid Output Hybrid Diplex Filter Location Location Reverse Hybrid Location Capacitor only on models with passive reverse Transformer linear power supply or Regulator Installation Area Power Plug connector for H E power supply not present on models with H E power supply Figure 4 7 E7 Motherboard 4 22 Configuration MX0507 RevE Chapter 5 Troubleshooting Test Procedures This chapter contains procedures that check all operational characteristics of an E7 FlexNet line extender amplifier that is suspected of being faulty Section 5 1 Field Testing Requirements page 5 1 Section 5 2 Quick Forward Outage Check page 5 2 Section 5 3 Power Troubleshooting page 5 2 Section 5 4 Forward Path Field Testing page 5 2 Section 5 5 Return Path Field Testing page 5 3 5 1 Field Testing Requirements The following are required for Forward and Reverse field testing W the operational gain of the amplifier see C COR net Amplifier Specification Sheets W System Forward and Reverse High and Low Balancing Carrier Levels for the amplifier being tested see the System Map or Amplifier Data Sheet established for 68 F 20 C If necessary refer to Section 4 2 Calculating Balancing Note Most System Maps list the input and output signal levels at bandedge frequencies Carrier Levels for Linear Output Tilt Operation and Section 4 3 Temperatu
86. ture correction only applies to aerial coaxial cable Use OdB Temperature Correction Value for all underground cable Typically only the forward balancing carriers require temperature correction The effect of temperature on the cable attenuation associated with the low frequency reverse balancing carriers is minimal except in extreme conditions If the temperature surrounding an amplifier is between 50 F and 90 F 10 and 32 C balancing carrier levels do not require temperature correction If the temperature is below 50 F 10 or above 90 F 32 perform temperature correction as follows 1 Record the System Forward High and Low Balancing Carrier levels from the Amplifier Data Sheet below Perform the calculation to get the adjusted output levels System Forward High TCV For High Adjusted Forward High Balancing Carrier Level Carrier Balancing Carrier Level System Forward Low TCV For Low Adjusted Forward Low Balancing Carrier Level Carrier Balancing Carrier Level 2 For both forward balancing carriers note the loss in dB at the carrier frequency due to the cable preceding the unit under test Also note the air temperature Use these values and the TCV temperature correction value chart on page 4 8 to obtain a temperature correction value for this section of cable for each balancing carrier Record both TCVs in the calculation box in Step 1 and on the Amplifier Data Sheet Note To obtain the temperat
87. turn Loss I O 18 16dB A 6 Reference Tables MX0507 RevE Table A 6 MEQ 550 and MEQT 550 Series Cable Equalizers dB of cable Insertion Loss in dB at Freguency MHz egualized at Model Number 54 70 80 222 300 400 450 500 550 ighestfreguency MEQ 550 02 2 0 2 0 1 9 1 4 1 4 1 2 1 1 1 1 1 0 1 4 MEQ 550 03 3 0 3 0 3 0 2 2 1 8 1 4 1 3 1 1 1 0 2 8 MEQ 550 04 4 0 3 9 3 7 2 6 2 2 1 7 1 4 1 2 1 0 4 2 MEQ 550 05 4 9 4 5 4 4 3 1 2 6 1 9 1 6 1 3 1 0 5 6 MEQ 550 06 5 9 5 6 5 5 3 7 2 9 2 1 1 7 1 3 1 0 6 9 MEQ 550 07 6 9 6 5 6 3 4 0 3 3 2 3 1 9 1 4 1 0 8 3 MEQ 550 08 7 8 7 4 7 1 4 7 3 7 2 6 2 0 1 5 1 0 9 7 MEQ 550 09 8 9 8 4 8 1 4 6 4 1 2 8 2 2 1 6 1 0 11 1 MEQ 550 10 9 8 9 3 9 1 6 1 4 5 3 0 2 8 1 6 1 0 12 5 MEQ 550 11 10 8 10 2 9 9 6 0 4 9 3 2 2 4 1 7 1 0 13 9 MEQ 550 12 11 7 11 1 10 7 6 6 5 3 3 5 2 6 1 8 1 0 15 3 MEQ 550 13 12 7 12 0 11 5 7 1 5 7 3 7 2 7 1 8 1 0 16 7 MEQ 550 14 13 8 13 0 12 6 7 8 6 1 3 9 2 9 1 9 1 0 18 1 MEQ 550 15 14 6 14 0 13 5 8 8 6 5 4 1 3 0 2 0 1 0 19 5 MEQ 550 16 15 3 14 5 14 1 9 0 6 8 4 3 3 2 2 0 1 0 20 8 MEQ 550 17 16 7 15 9 15 4 10 3 7 8 4 6 3 3 2 1 1 0 22 2 MEQ 550 18 17 5 16 8 16 3 10 4 7 7 4 8 3 5 2 2 1 0 23 6 MEAT 550 4 7 0 6 9 6 8 5 3 4 5 3 9 3 7 3 4 3 0 5 5 MEQT 550 8 10 9 6 8 6 6 5 8 6 1 4 8 4 1 3 7 3 0 11 1 MEQT 550 11 13 7 13 0 12 7 8 9 7 2 5 4 4 6 4 0 3 0 15 2 Passband Flatness MEG 550 02 thru 09 0 3 dB P V 550 Document number 600564 Revision 550 10 thru 18 0 4 dB P V
88. ulator leads are straight 3 Place sleeves on the regulator pins as shown in Figure 4 6 4 Orient the regulator as shown Insert the regulator pins into the holes labeled U8 until the regulator mounting screw hole lines up with the hole in the insulator pad and chassis MX0507 RevE Configuration 4 19 5 Insert the binder head Phillips screw from the outside of the RF module as shown in Figure 4 6 Secure the regulator with the neoprene washer then the metal washer and nut CAUTION Overtightening the regulator mounting screw can short the regulator to the chassis Torque to between 4 6 in lbs 45 and 68N m 6 Use the 1 Phillips screwdriver to keep the screw from turning while tightening the nut Torque to between 4 and 6 in lbs 45 and 68 N m CAUTION Solder bridges will short the regulator Do not allow solder to bridge between N leads 7 Solder the regulator leads being very careful that the solder does not bridge between leads Nylon Shoulder Washer Metal Washer Regulator Pin Sleeve i Insulator Pad Regulator Binder Head Phillips Screw 4 20 Configuration MX0507 RevE Figure 4 6 Regulator Installation 4 6 2 5 Diplex Filter Installation for E729B Note Installing diplex filters without realigning the amplifier may degrade signal quality Diplex filters add insertion loss which decreases spacing Installing diplex filters may also cause bandedge rolloff and degrade retu
89. ure correction value on the TCV Chart page 4 8 Find the point on the chart corresponding to your cable loss and temperature values Then find the TCV line nearest this point The dB value label on that line is your TCV Note Example Your cable loss is 25dB The air temperature is 25 F 5 C The point on the graph corresponding to these two values is between the 0 5 and 1 0dB lines but closer to the 1 0dB line The dotted lines mark the halfway between lines points on the graph The TCV is then 1 0dB 4 6 Configuration MX0507 RevE 1 Use the temperature corrected forward balancing carrier levels for Forward Balancing or Forward Field Testing 2 Optional repeat Steps 2 and 1 for the reverse balancing carriers Use these temperature corrected levels for Reverse Balancing or Reverse Field Testing MX0507 RevE Configuration 4 7 aunyesoduiay 43 TCV 0 5 dB 0 5 TCV a gt O r LO LL N KS 2 o a G a o o N 130 110 90 1 30 49 Figure 4 1 Temperature Correction Value Chart 4 8 Configuration 0507 Rev E 4 4 Forward Balancing hybrid can damage amplifier active components Do not use test signal levels that will be greater than 30dBmV at the hybrid 30dBmV 90dBuV CAUTION RF signal levels greater than 30dBmV 1

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