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Motorola AW 7390 Portable CD Player User Manual

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1. NAH RF gasket woven wire 100 Installation and Operation Manual Overview 2 7 Port Locations Seven port plugs in the cover enable access to internal test points The input and four output ports provide connection for coaxial cables and are protected by factory inserted threaded plugs or plastic cap plugs Discard the plastic cap plugs when you install the cable connectors Port 2 is used only for connection to an external 60 VAC or 90 VAC power supply Side by side connector fittings are limited to 0 750 inches at ports 1 2 3 and 4 Figure 2 7 illustrates the port locations and the rear view of the housing Figure 2 7 Housing port locations and rear view of housing Port Strand clamp location Port OUT normal IN E imm Im Tapped holes for surface mounting Port Port Strand clamp location Port Port 3 4 optional 2 1 Power Supply The integrated DC power supply of the BT100 is a separate circuit board mounted to the underside of the electronics chassis and is capable of 60 VAC or 90 VAC powering The waveshape of the input voltage can be either squarewave or sinewave The power supply incorporates pow
2. Figure 3 6 ADU x AUTOMATIC DRIVE UNIT Q MOTOROLA ADU P i Pilot frequency Figure 3 7 QADU AUTOMATIC DRIVE UNIT Q MOTOROLA SANU amp 2 Pilot frequency To set up the ADU QADU 1 Position the drive control select jumper Figure 2 13 temporarily to the MAN position and perform the complete procedure described in Manual Gain Control if not already completed 100 Installation and Operation Manual 3 0 Amplifier Setup 2 Verify that the frequency stamped on the ADU QADU control unit is the same as the system pilot frequency For the ADU the pilot frequency is a CW pilot or an available NTSC television channel not scrambled using sync suppression and not a digital channel For the QADU the pilot signal is QAM modulated digital channel 3 Position the drive control select jumper to AUTO 4 Connect a signal level meter to the FWD OUT test point and tune the meter to the high band edge carrier 5 Turn the auto level ADU potentiometer illustrated in Figure 2 13 fully clockwise then reduce to obtain the level obtained in Step 9 under Manual Gain Control ADU QADU Pads and Levels This subsection provides information regarding the proper ADU QADU padding requirements for the BT100 A JXP B pad is installed in the input line to the ADU QADU location This pad adjusts the ADU QADU input level
3. 2 3 Figure 2 4 BT 100 15 dimensions top View nennen nre rennen tester tree rei resa resa 2 4 Figure 2 5 BT 100 15 dimensions side View nennen nre nnne rennes renis rester Figure 2 6 Housing Gaskets rennen Figure 2 7 Housing port locations and rear view of housing Figure 2 8 100 power 5 m KaKaaa Figure 2 9 Fuse locations M 2 9 Figure 2 10 BT100 4 four output block diagram sssrinin 2 10 Figure 2 11 BT100 3 three output block diagram erret nne rennen reinen renis 2 11 Figure 2 12 LL BTA HMS status monitor nnne nennen rennen res reni re resi resi 2 12 Figure 2 13 BT100 Options and Accessories eere rennen tete ree treo rei eii 2 14 Figure 3 1 Equalizer slope versus cable eene nnne nnne rennen restent ree rre resi resi testet nn Figure 3 2 Frequency versus cable slope Figure 3 3 Flatness controls ssnin Figure 3 4 BDR 1G board top left bottom right resins rnnt stein nensi 3 8 Figure 3 5 TDU cable selector eene A A SA ni tette tesi tti tete aa E EE 3 10 Figure 3 6 ADU bp ar WR a E 3 11 LA E Epor 3 11 Figure 4 1 Test equipment connections for b
4. 100 Installation and Operation Manual 2 2 Overview Figure 2 2 illustrates the various output port configurations Figure 2 2 BT100 output port configurations Input gt Active AUX power Active Active gt Active BT100 4 Input Active AUX power Not active Active Active BT100 3 BT100 Installation and Operation Manual Overview 2 3 Ordering Guide Several models of the BT100 are available The BT100 is fully configured in the factory per model requested You can find the model name on labels on the outside of the shipping carton the side of the BT100 housing and the side of the electronics module Figure 2 3 identifies and describes the model strings Figure 2 3 BT100 ordering guide Bandpass Split 100k 100N 5 85 MHz 104 1003 MHz Key Level Control 0 OADU 60909 S Standard Full Station Electronics only 15 amp Notes 1 Not all combinations in the ordering guide are available This is a guide only Please see list of available models in the data sheet located online 2 FTECs are included in all models as standard except for the basic models BT 100 H which contain the standard gas tube surge arrestor 3 20A fuses are included in all amplifiers as standard 4 ICS and status monitor transponders will continue to be customer con
5. 4 3 Completing the Test Procedures 4 4 Section 5 Installation P EnnrHluppmee Pedestal Installation 5 3 Section 6 Operating Tips Using Amplifiers in Lower Frequency Systems eren 6 1 Using Amplifiers in Lower Gain Systems Appendix A Specifications Lun gli UNT RA Kit H Return Amplifier ADU QADU Automatic Drive Unik a a nre rere erre ere re rr n n 2 Appendix Torque Specifications Abbreviations and Acronyms BT100 Installation and Operation Manual Contents iii Figures Figure 1 1 100 e oE a 11 Figure 1 2 ARE X 1 2 Figure 2 1 100 E7ldm Tana a 2 1 Figure 2 2 BT100 output port configurations nennen nnns restes tenerte reote eii resi reiten 2 2 Figure 2 3 BT100 ordering
6. c3 O 1 O 5 95 Wo ull Top view Bottom view To obtain maximum flatness 1 main board adjust the high end flatness adjustment C129 to minimum capacitance to place the peak out of the bandwidth This should not need adjusting as it is properly set during manufacturing 2 Onthe BDR 1G board adjust a R5 and for the response across the lower end of the mid band b C1 and L6 for the mid band response c C3 and R4 for more mid band response adjustment C2 and R3 for response around 100 MHz d C7 and R2 for the response at Fmin e C4 L4 and L5 for the response at the upper frequency range 3 You may adjust tilt by changing the MEQ 100 equalizer value Ifthe module s response is up tilted increase the MEQ 100 value by 1 dB Ifthe module s response is down tilted decrease the MEQ 100 value by 1 dB Directional Coupler Test Points Accurate 20 dB directional coupler test points are available at the input and at the output of the BT100 Because these test points are 75 ohm source impedance they do not require special test probes After the output hybrid a second directional coupler provides signal to the optional ADU or QADU board This signal is used only when the ADU or QADU board is installed It is not necessary to terminate this port when the ADU QADU is not installed Do not remove the ADU pad JXP ADU Removing this pad affects the o
7. 11 12 13 14 15 Apply power to the unit and allocate a few minutes for warm up Check the AC voltage setting Figure 2 8 Jumper position Description 60 v J2 to J4 The voltage must be greater than 38 VAC as read with a true rms voltmeter or 42 VAC when using a conventional average reading AC voltmeter 90 v J2 to J3 The voltage must be greater than 55 VAC when read with a true rms voltmeter or 61 VAC when using a conventional average reading AC voltmeter Check the DC voltage Verify that it is between 23 6 V and 24 4 V and reinstall the input pad If necessary rebalance the amplifier following the instructions in Section 3 Amplifier Setup Check the tightness of the electronics chassis cover screws 10 to 12 in lbs and hold down bolts 18 to 22 in lbs Check the condition of the RF and weather gaskets and replace them if necessary If needed also apply a light coating of silicone grease Ensure that the electronics chassis handles are folded down and that any cables between the base and lid are not pinched Close the housing and use a torque wrench to sequentially and progressively tighten the housing bolts to a final torque of 15 ft Ibs in the sequence specified on the housing cover and illustrated in Figure 5 2 Figure 5 2 Torque sequence 6 2 4 7 8 3 1 5 Torque housing bolts to 15 ft Ibs in sequence shown BT100 Installation and Operation Manual Installation 5 3 Pedestal Instal
8. 3 SCS 3 2 5 SCS 4 8 2 6 SCS 5 _ g7 SCS 6 8 E SCS 7 10 SCS 8 11 SCS 9 12 SCS 10 13 c te N e e e b b iO N w oO e Lo ive ive N N N e t lo e Frequency MHz Input Midstage and Output Pads Install model JXP B pads to attenuate the signal per system design drawings Generally this consists of attenuating excessive input levels You should pad the input to system level for unity gain Select and install the specified pad in the socket labeled JXP IN on the amplifier cover The midstage pad JXP and output pads JXP OUT 1 JXP 3 and JXP 4 can be used to adjust the gain level and achieve the gain specification Refer to Section 6 Operating Tips for midstage output padding information and recommendations BT100 Installation and Operation Manual Amplifier Setup 3 7 Flatness Control amplifiers are factory aligned for optimal station flatness therefore there is usually no need to adjust the BDR board However you can make minor adjustments if necessary to achieve flatness across the passband The BDR 1G board includes flatness controls and a fixed cable equalizer for 1003 MHz This equalizer plus the contribution of the hybrid gain stages produces approximately 14 dB of tilt Adjust the BDR 1G board to correct peak to valley response variations Adjust or replace the equalizer if the response ex
9. 100 Installation and Operation Manual Overview 2 11 Figure 2 11 illustrates the interconnection between these components in the three output 100 3 Figure 2 11 BT100 3 three output block diagram Port 2 FTEC 9 ACIN 5 Plug in module Return Path BT100 main amplifier circuit board includes the return path This equips the BT100 to pass signals in the return or upstream direction The standard circuit board contains all components including the diplex filters with extended return bandwidth for the amplifier input and output Optional SRE return equalizers compensate for cable attenuation and are available in 1 dB increments for S split and 2 dB increments for all other splits from 0 dB through 12 dB You must install a return equalizer to activate the return path There are JXP B pad facilities located at the inputs and output of the return path You can use these pad facilities as test points or signal injection points The output pad value is normally selected to control the return signal level into the next upstream amplifier while the input pad value is selected to attenuate excessive input signal The return input test points and the return output test point are 20 dB directional couplers These test points present 75 ohm source impedance and do not require special test probes Optional return path thermal compensation 1s provided by plug in JXP TH2C or JXP TH3C modules that stabilize g
10. 1003 MHz 18 dB of cable produces approximately 3 6 dB of loss at 54 MHz This suggests that the channel 2 signal input to the BT100 is 14 4 dB greater 18 3 6 14 4 than it is at 1003 MHz Our example assumes that the high end frequency level into the BT100 is 12 dBmV Substituting this information into the above equation provides the following result 11 dB 26 4 dB 12 dBmV 14 dB 11 4 dB The slope of the required equalizer is 11 4 dB Table 3 1 and the graph in Figure 3 1 show that 11 4 dB of slope is caused by approximately 14 dB of cable at 1003 MHz Therefore the correct equalizer is model SFE 100 14 When selecting an equalizer choose the next lower value if the exact value is not available or in cases where the calculated value makes two choices possible 100 Installation and Operation Manual Amplifier Setup Table 3 1 helps you choose the correct equalizers and also lists insertion loss at various frequencies Table 3 1 Starline Forward Equalizers SFE 100 Equalizer Value SFE 100 22 Equalizer Slope 17 1 15 5 14 0 12 4 10 9 9 3 7 8 6 2 4 7 3 1 1 6 50 18 1 16 5 15 0 13 4 11 9 10 3 8 8 7 2 5 7 4 1 2 6 200 13 2 12 1 11 0 9 9 8 7 7 6 6 5 5 4 4 3 3 2 2 1 Frequency MHz versus Insertion Loss dB 300 11 0 10 1 9 2 8 2 7 8 6 4 5 5 4 6 3 7 2 8 1 9 450 8 3 7 6 6 9 6 3 5 6 5 0 4 3 3 6 3 0 2 8 1 7 550 6 7 6 2 5 7 5 2 4
11. 6 4 1 3 6 3 1 2 6 2 0 1 5 650 5 3 4 9 4 5 4 1 3 7 3 3 2 9 2 6 2 2 1 8 1 4 750 4 0 3 7 3 4 3 2 2 9 2 6 2 4 2 1 1 8 1 5 1 3 870 2 5 2 4 2 2 2 1 2 0 1 8 1 7 1 5 1 4 1 3 1 1 Figure 3 1 illustrates a graph of the equalizer slope versus equalizer value information presented in Table 3 1 The amount of cable equals the equalizer value Figure 3 1 Equalizer slope versus cable BT100 Installation and Operation Manual dB of Cable Slope versus Cable A dB of Equalizer Slope 1 GHz 1003 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 Amplifier Setup 3 5 When selecting an equalizer choose the next lower value if the exact value is not available or in cases where the calculated value makes two choices possible To determine the proper cable for bench testing subtract the interstage equalizer value 14 dB from the cable connected to its input The output is flat with a flat signal source Because of errors in cable attenuation slope in passive devices and other independent variables you may need to change the final value of the equalizer before you install the BT100 STARLINE Cable Simulators STARLINE cable simulators model SCS are used in place of fixed equalizers in systems where 1 the amplifiers are located close together 2 there are large amounts of flat loss from passive components or 3 it is necessary to compensate for reverse cable tilt The si
12. Before You E E E E E E AA E A E A 3 2 STARLINE Forward Equalizers eren rers rentes rni resa testet terti aae aaaea 3 3 Example 1 Example 2 STARLINE Cable Simulators un eere nennen rnnt tenetis ti tertio t E o 3 5 Input Midstage and Output Pads 3 6 Flatmess Comtrol 3 7 Directional Coupler Test 5 3 8 Bode Equalization Amplifier Level Control Manual Gain Control BT100 Installation and Operation Manual ii Contents Thermal Drive Unit AE 3 10 Automatic Drive Unit QAM Automatic Drive Unit e i anana 3 11 ADU QADU Pads and 3 12 Return Path Alignment nn nn Before You Begin Alignment Procedure Powering and Surge Protection 3 14 Section 4 Bench Testing Before You Begin M M 4 1 Test Equipment and Connections 4 1 Measuring Forward Gain CJ Testing Return Gain and Response nnne restent rei
13. Set tops Commercial Uplink IRD Encoder PRESS1 55 2 Digital Analog Data Networks e Transmission Products e Products PRESS 3 e PRESS 4 eo ARE aed dana PRESS 1 PRESS 2 PRESS 3 PRESS 4 PRESS 5 PRESS 1 PRESS 2 Cable Router Cable Modems Transmission Network Multiservice Consumer Broadband Products VOIP Products Management Transport Satellite Retail Products C Band Support MBT MWT MEA j PRESS 1 PRESS 2 Bevel Network Network 1 Critical Failure Licensing Management 2 Serious Failure Products 3 Lesser Failure 4 Technical Assistance Issued 04 2005 BT100 Installation and Operation Manual Introduction 1 5 Calling for Repairs If repair 15 necessary call the Motorola Repair Facility at 1 800 227 0450 for a Return for Service Authorization RSA number before sending the unit The number must be prominently displayed on all equipment cartons The Repair Facility is open from 8 00 AM to 5 00 PM Central Time Monday through Friday When calling from outside the United States use the appropriate international access code and then call 956 541 0600 to contact the Repair Facility When shipping equipment for repair follow these steps 1 2 3 4 Pack the unit securely Enclose a note describing the exact problem Enclose a copy of the invoice that verifies the warranty status Ship the unit PREPAID to the following address BCS Nogales Repair Center Attn RSA
14. for the standard application of the BT100 but you can change this pad depending on the operational output of the BT100 In the BT100 analog ADU circuit a JXP 7B pad is generally recommended This 15 the standard ADU pad value as shipped from the factory and is appropriate for an amplifier output level range from 43 dBmV to 49 dBmV at 550 MHz Use a JXP 1B pad for output levels below 43 dBmV and a JXP 11B for output levels above 49 dBmV The standard pad for the QADU is a JXP OB This pad value works for a BT100 output level from 38 dBmV to 47 dBmV at 550 MHz Use a JXP 7B when operating above 47 dBmV at 550 MHz Motorola does not recommend operating the BT100 above 46 dBmV at 550 MHz Use of an ADU or QADU is recommended for improved output level stability although you can operate the BT100 in the manual mode Select manual mode by placing the drive control select jumper illustrated in Figure 2 13 in the MAN position The gain of the BT100 is then determined by the potentiometer marked MAN on the amplifier cover Return Path Alignment The following subsections describe the BT100 alignment procedures required for proper performance in the return path Before You Begin Before you begin to set up the amplifier and perform return path alignment please read the following instructions and recommendations For proper return alignment obtain RF alignment levels and insertion points for all BT100s RF reference output level o
15. highest frequency preceding the BT100 station Low 0 dB to 15 dB of cable medium 15 dB to 37 dB of cable and high 38 dB or more of cable Figure 3 5 TDU cable selector Thermal Medium level o Low High 2 Position the drive control select jumper Figure 2 13 temporarily in the MAN position and perform the complete procedure described in Manual Gain Control if not already completed BT100 Installation and Operation Manual Amplifier Setup 3 11 3 Position the drive control select jumper to AUTO 4 Connect a signal level meter to the FWD OUT test point and tune the meter to the high band edge carrier 5 Turn the thermal level potentiometer on the TDU fully clockwise and then reduce to obtain the level obtained in Step 9 under Manual Gain Control Automatic Drive Unit QAM Automatic Drive Unit ADU and QADU operate by using surface acoustic wave SAW filters to select a pilot frequency and then monitoring the amplitude of this frequency change in signal level 15 fed back to the Bode equalizer It is assumed that the encountered signal level changes are due to changes in cable attenuation and hybrid output associated with a change in temperature The Bode equalizer then changes its insertion loss to maintain a constant output level The ADU illustrated in Figure 3 6 and QADU Figure 3 7 maintain a more precise output level than using the TDU or leaving the BT100 in manual control
16. input port as illustrated in Figure 2 9 WARNING To avoid possible injury to personnel or damage to the equipment remove 60 90 volt AC power from the system before you remove any components from the housing The BT100 is shipped from the factory configured for 38 through 90 VAC powering as described in Section 2 Overview To configure the BT100 for 55 VAC through 90 VAC operation 1 Remove the power supply cover 2 Move the 60 90 V selector on the power supply board from the J2 to J4 60 V position to the J2 to J3 90 V position Figure 2 8 illustrates the 60 90 V selector 3 Reinstall the power supply cover and torque the screws to 10 to 12 in lbs BT100 Installation and Operation Manual Section 4 Bench Testing Motorola s recommended procedure for placing a new BT100 into service is to fully test it on the bench before it 15 installed There are specific alignment procedures that ensure proper functioning of all components and simplify final installation If the BT100 is properly aligned on the bench only minor adjustments may be required in the field The following subsections provide instructions to bench align the BT100 Before You Begin The BT100 is shipped with a 20 ampere blade type fuse in each active port for over current protection CAUTION F3 FA orF5 illustrated in Figure 2 9 Terminate all unused ports To avoid applying 60 90 Vac to the test equipment during testing remove the fuse from t
17. proper region of the Bode board when it is controlled by the ADU or QADU drive units measure the operational gain and flatness of the amplifier BT100 Installation and Operation Manual Bench Testing 4 3 1 Perform steps 1 through 6 in Measuring Forward Gain above Estimate the ambient temperature and find the required gain reserve by referring to Table 3 3 Reduce the gain at the highest frequency by the amount given in the table Example The ambient temperature is 70 F The table indicates that the required gain reserve is 4 dB Reduce the gain by 4 dB The operational gain is the sum of the measured gain after performing Step 2 plus all losses such as power combiner cable loss equalizer and cable simulator sweep response is essentially flat at this point If the response exhibits tilt the cable equalizer must be changed Install a higher equalizer value if the gain 16 greater at the low frequencies install the next lower equalizer value if the gain is less at the low end frequencies Measure the gain excursions from an average value within the bandpass result is the peak to valley flatness Some improvement is possible by adjusting the flatness controls on the board as described in Section 3 Amplifier Setup Flatness Control Figure 3 4 illustrates the location of these controls on the BDR Testing Return Gain and Response After configuring the return path you can test the return
18. tilt is greater than required install a lower value input equalizer Ifthe high value equalizer provides too much tilt and the low value equalizer provides too little tilt use the lower value equalizer Under equalization is preferred to over equalization If you set up the BT100 using an SCS you must increase or decrease the JXP input pad by the amount of change you made in the SCS value Therefore to maintain a proper gain level it is necessary to adjust the input pad value as follows each increase in SCS value decrease the input pad by 1 dB For each decrease in SCS value increase the input pad by 1 dB Ifyou replace an SFE with an SCS reduce the value of the input pad by the value of the SCS 9 Measure the output level at the highest frequency It should be within 1 dB of the system design level If it is not you must adjust the midstage pad JXP and or the output pads JXP OUT JXP 1 JXP 3 JXP 4 accordingly Refer to Section 6 Operating Tips for midstage output padding information and recommendations Thermal Drive Unit The TDU senses temperature and controls the Bode board It is assumed that the cable is subjected to the same or similar temperature therefore the TDU should not be used for underground installations To set up the TDU 1 Place the jumper on the TDU Figure 3 5 to the LOW MEDIUM or HIGH position to specify the amount of cable for which the TDU compensates at the
19. 100 Installation and Operation Manual Specification 5 through 40 MHz 17 5 dB 0 75 dB Fixed pads JXP B input and output 40 35 flat 6 NTSC 74 dB 86 dB 82 dB 12 5 dB 24 VDC 125 mA Specification See current catalog 6 MHz 36 dBmV 20 3 output change for 3 0 dB input change 24 VDC 75 mA Appendix B Torque Specifications Torque specifications are valid for the BT100 Fastener Strand clamp pedestal mounting Housing lid closure Test point plugs Seizure screw Hybrid Chassis electronics module Chassis electronics module cover Status monitor Power supply cover ScrewSize W ench Size 5 16 18 5 16 18 5 8 24 18 32 1316 32 10 32 6 32 10 32 6 32 1 2 inch 1 2 inch 1 2 inch 3 16 inch or Phillips Phillips 5 16 inch 1 4 inch or Phillips 5 16 inch 1 4 inch or Phillips Inds 120 144 180 25 40 12 10 12 18 22 10 12 24 30 10 12 Torque Felbs 10 12 15 0 2 1 3 3 1 0 0 8 1 0 1 5 1 8 0 8 1 0 2 0 2 5 0 8 1 0 NM 13 6 16 3 20 4 2 8 4 5 1 4 1 1 1 4 2 0 2 4 1 1 1 4 2 7 3 4 1 1 1 4 BT100 Installation and Operation Manual Abbreviations and Acronyms The abbreviations and acronyms list contains the full spelling of the short forms used this manual ADU Automatic Drive Unit c n carrier to noise CSO Composite Second Order CTB Composite Triple Beat cw Continuous wave dB Deci
20. 6908 East Century Park Drive Tucson AZ 85706 US 100 Installation and Operation Manual Section 2 Overview BT100 is a three or four output two way capable amplifier used in Cable Access Television CATV distribution systems All models are high gain three stage hybrid amplifiers designed to drive both a cascade and a local distribution system The BT100 is powered by the 60 90 VAC cable supply and can be configured to pass this power to additional amplifiers and line extenders Installation of the return path enables two way signal flow standard model BT100 includes an amplifier electronics module with an integrated power supply which is furnished complete in the model BT 100 15 housing as shown in Figure 2 1 You may also purchase the electronics module only with no housing Figure 2 1 BT100 open E 9 Q MOTOROLA sal l
21. Installation and Operation Manual MOTOROLA BT100 1 GHz Broadband Amplifier ms TITTITTIT MOTOROLA CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN CAUTION TO REDUCE THE RISK OF ELECTRIC SHOCK DO NOT REMOVE COVER OR BACK NO USER SERVICEABLE PARTS INSIDE REFER SERVICING TO QUALIFIED SERVICE PERSONNEL Caution These servicing instructions are for use by qualified personnel only To reduce the risk of electrical shock do not perform any servicing other than that contained in the Installation and Troubleshooting Instructions unless you are qualified to do so Refer all servicing to qualified service personnel Special Symbols That Might Appear on the Equipment This symbol indicates that dangerous voltage levels are present within the equipment These voltages are not insulated and may be of sufficient strength to cause serious bodily injury when touched The symbol may also appear on schematics The exclamation point within an equilateral triangle is intended to alert the user to the presence of important installation servicing and operating instructions in the documents accompanying the equipment For continued protection against fire replace all fuses only with fuses having the same electrical ratings marked at the location of the fuse Electrostatic discharge ESD can damage the BT100 unit and circuit card assemblies Wear an antistatic wrist
22. JXP level monitor input filter JXP IN select jumper BDR orQADU OUT ADU ADU input e Diplex Return Return Output Return Diplex forward filter output pad pad pad input return filters output JXP JXP JXP 1 pad input JXP 3 Port 3 Return TP Optional Status Return Optional ICS Return Output equalizer return thermal monitor input JXP jumpers shown input pad SRE input pad output pad pad JXP 4 Port 1 JXP JXP 1 JXP 4 THERM If you are not using an ADU QADU or TDU you can select manual control of the Bode board Figure 2 13 illustrates the location of the AUTO MAN jumper on the main circuit board BT100 Installation and Operation Manual Section 3 Amplifier Setup This section provides instructions on how to properly handle and configure the 100 It also describes the proper forward and return path alignment procedures It is recommended that you read this entire section before you install the BT100 Proper Handling Procedures The following information is useful in reducing GaAs RF amplifier failures caused by Electrostatic Discharge ESD or Electrical Over Stress EOS Many electronic components are vulnerable to ESD and EOS Improper handling during service and installation can subject the BT100 to performance degradation or failure All closed operational units are equally
23. N55024 EN55013 EN50083 2 CISPR 22 CISPR 24 CISPR 13 Safety Standards EN60065 EN60825 EN50083 1 EN60950 IEC 60950 A1 1992 A2 1993 1995 4 1996 60065 following the provisions of the Directive s of the Council of the European Union EMC Directive 89 336 EEC Low Voltage Directive 73 23 EEC WEEE Directive 2002 96 EC Copyright O 2007 by Motorola Inc rights reserved No part of this publication may be reproduced in any form or by any means or used to make any derivative work such as translation transformation or adaptation without written permission from Motorola Inc Motorola reserves the right to revise this publication and to make changes in content from time to time without obligation on the part of Motorola to provide notification of such revision or change Motorola provides this guide without warranty of any kind either implied or expressed including but not limited to the implied warranties of merchantability and fitness for a particular purpose Motorola may make improvements or changes in the product s described in this manual at any time MOTOROLA STARLINE LIFELINE and the Stylized M Logo are registered in the US Patent amp Trademark Office All other product or service names are the property of their respective owners Motorola Inc 2007 Contents Section 1 Introduction 5 2 a dalan 13 Relate
24. Performance reference frequency MHz At typical output dBmV Channels Crossmod worst case CTB worst case CSO worst case Noise figure At 52 MHz At 1003 MHz Interstage equalizer BDR 1G Hum modulation Return loss input output Test points input output Housing dimensions Weight Forward Amplifier 52 through 1003 MHz 46 dB with SFE 42 dB with SFE and slope reserves 50 70 dB maximum Bode board using ADU QADU TDU Fixed pads JXP B 1003 550 52 45 44 37 79 analog 320 MHz digital suppressed by 6 dB 66 dB 5 dB 71 dB 10 dB with SFE 1 10 dB with SFE 1 14 1 dB 70 dB 16 dB at operational level 20 1 0 dB 21 6 L x 10 6 Wx 7 7 D inches 54 9 x 26 9 x 19 6 cm 27 pounds 12 25 kg BT100 Installation and Operation Manual A 2 Specifications AC Current AC Voltage One way With RA Kit 90 VAC 0 75 A 0 80A 75 VAC 0 91A 0 96 A 60 VAC 115A 1 22 53 1 31 1 39 45 1 57 1 66 38 1 90 2 00 Return Amplifier Parameter Passband S split Gain station minimum Flatness Level control Performance reference frequency MHz At typical output Channels Crossmod worst case CTB worst case CSO worst case Noise figure Power requirements ADU QADU Automatic Drive Unit Parameter Pilot channel Adjacent channel frequency Minimum BT100 output at pilot frequency ALC stiffness Power requirement BT
25. accessories Model Description ADU Automatic Drive Unit QADU QAM Automatic Drive Unit TDU Thermal Drive Unit SFE 100 STARLINE Forward Equalizer SRE STARLINE Return Equalizer SCS STARLINE Cable Simulator JXP B Fixed attenuator JXP TH C Thermal attenuators FTEC 230 R Fast Transfer Electronic Crowbar ICS II Ingress Control Switch Function By monitoring changes in level of the selected pilot carrier this board automatically controls amplifier output levels that change with cable attenuation and hybrid output for the sensed temperature This board automatically controls amplifier output levels that change with cable attenuation and hybrid output The selection of a pilot frequency QAM modulated digital channel is required This board controls amplifier output levels that change with cable attenuation for the sensed temperature This 1GHz equalizer compensates for cable properties in 1 dB increments from 0 dB through 22 dB You must install the appropriate value This bandwidth specific equalizer compensates for cable attenuation in 1 dB increments from 0 dB to 12 dB for S split 2 dB increments for all other splits You must install the appropriate value This simulator compensates for cable properties You must install the appropriate value This pad is used to attenuate excessive input signal and can be used to adjust amplifier gain It is available in 1 dB increments from 0 dB to 26 dB You must insta
26. ain and match over temperature extremes 100 Installation and Operation Manual 2 12 Overview Ingress Control Switch ingress control switches ICS provide return path signal attenuation or cutoff in the BT100 An ICS is required for each output port Therefore the standard four output BT100 requires four ICS s Switching 16 accomplished through the frequency agile LIFELINE status monitoring transponder which you can purchase directly from Networks Figure 2 12 illustrates the LL BTA HMS and the required cable connections to the electronics chassis Figure 2 12 LL BTA HMS status monitor Status monitor output cable G to F type adapter S Status monitor input cable Status z monitor 8 control cable LL BTA HMS transponder du du The ICS provides a means of isolating sources of ingress from a centralized location Using a downstream command through the LIFELINE status monitoring system you can attenuate the return path throu
27. ation and forward and return path alignment Section 4 Bench Testing describes the bench test procedures that are recommended before you install the BT100 Section 5 Installation provides instructions for installing the BT100 and performing field alignment Section 6 Operating Tips provides suggestions for handling field encountered variables and addressing maintenance tasks Appendix A Specifications lists the applicable technical specifications for the BT100 and options Appendix B Torque Specifications provides the appropriate torque specifications for the screws clamps connectors and bolts used in the BT100 Abbreviations The Abbreviations and Acronyms list contains the full spelling of the short forms used in and Acronyms _ this manual This Installation and Operation Manual assumes that all channels are standard National Television Standards Committee NTSC analog channels Refer to catalog specifications for further details pertaining to signal levels of digital channels above 550 MHz This Installation and Operation Manual also uses 1003 MHz as the reference frequency unless another frequency is given For example quoted cable loss is understood to be at 1003 MHz Related Documentation This Installation and Operation Manual is complete and you should not require any additional documents to install test or operate the BT100 amplifier Document Conventions Before you begin using the BT100 familiarize yourself with the s
28. bandpass to ensure compliance with specifications When testing the return path remember that it is a flat response Therefore the cable simulator must remain in the test set up and must remain set to the same cable equivalent as in the forward sweep test This provides an approximate indication of the frequency response which you can achieve in the field To test for return gain and response 1 Reconnect the test equipment and switch the sweep input and sweep output leads of the 100 under test to be opposite of the connection shown in Figure 4 1 Remove the 20 A fuse F1 at the input port and replace the 20 A fuse F2 F3 F4 or F5 at the output port Figure 2 9 before you apply power Re adjust the test equipment to sweep from 4 MHz through the maximum return band frequency plus 10 MHz Example 50 MHz for S split expected response is flat Any tilt which is due to the return equalizer must average out to a flat response in a cascade of amplifiers A slope adjustment is not available in the return bandpass Measure the gain at the maximum return band frequency example 40 MHz for S split The amplifier gain is the sum of the measured gain the insertion loss of the return cable equalizer at the maximum return band frequency the insertion loss of the power combiner any pads installed in either the input or output pad locations plus the cable simulator loss at the maximum return band frequency The amplifier ga
29. bel dBmV Decibels referenced to one millivolt E GaAS Enhanced Gallium Arsenide FTEC Fast Transfer Electronic Crowbar GHz Gigahertz ICS Ingress Control Switch MEQ mid stage equalizer MHz Megahertz NTSC National Television Standards Committee QADU Quadriture Amplitude Modulated QAM Automatic Drive Unit rms root mean square RSA Return for Service Authorization SAW Surface Acoustic Wave SCS STARLINE Cable Simulator SFE STARLINE Forward Equalizer SRE STARLINE Return Equalizer TDU Thermal Drive Unit TRC Technical Response Center BT100 Installation and Operation Manual Visit our website at www motorola com MOTOROLA 527550 001 a 2 07
30. bolts for strand aerial mounting The bottom of the housing also contains two 5 16 inch x 24 threaded holes located on the horizontal center line separated by eleven inches center to center Figure 2 7 Use these holes and the bolts from the messenger clamps for pedestal and surface mounting installations 100 Installation and Operation Manual 2 6 Overview Housing Gaskets Each housing is equipped with a recessed woven wire RF gasket and a silicone rubber weather gasket to provide a seal between the housing base and lid Figure 2 6 These gaskets provide efficient ground continuity RF shielding and weather protection Both gaskets must be in place and in good condition to ensure proper operation and protection of the station The weather gasket should be lightly coated with silicone grease each time the amplifier 15 opened Replace this gasket if it becomes damaged or deformed Figure 2 6 illustrates the housing gaskets Figure 2 6 Housing Gaskets Weather gasket silicone rubber 9 Q MOTOROLA gt p BOE rs AMPLIFIER
31. d 13 Document 13 Need o ia Sasi 14 Calling for ond nno aov i ana 1 5 Section 2 Overview Ordering Guide hnnc hdc q AR 2 6 Port LOCATIONS 2 7 Power 5 2 7 Forward 2 9 Return 2 11 Ingress Control Switch asa dni na a a ei vn 2 12 Options and Accessories eere eit Ho 2 13 Section 3 Amplifier Setup Proper Handling Procedures EE RE du ok cai rov pad 3 1 Field Practice Bench Setup Forward Path Alignment 3 2
32. d by one of the following methods For aerial metal strand installations the metal strand clamp normally provides adequate grounding However if additional grounding is needed you may attach a wire from earth ground to a 5 16 x 24 bolt that is tightly secured to one of the pedestal mounting holes on the bottom of the housing base For pedestal installations the BT100 should be adequately grounded by routine mounting to the pedestal However if additional grounding is needed attach a ground wire to a 5 16 x 24 bolt and tighten it into one of the strand clamp holes BT100 Installation and Operation Manual Section 6 Operating Tips This section describes using amplifiers in lower frequency systems and in lower gain systems Using Amplifiers in Lower Frequency Systems When using the BT100 in 870 MHz or 750 MHz systems you must consider the best method for handling the reduced bandwidth and channel loading requirement The following information helps you determine the best approach For distribution systems designed and installed as 1 GHz systems but carrying a reduced channel load there are no further concerns You can add or remove channels at your discretion If the system operates with ADUs QADUs the pilot channel cannot be disturbed Reduced channel loading improves distortion For lower frequency systems such as 870 MHz or 750 MHz you will need to take into account the reduced gain from 1 GHz Due to the amplifier
33. e design value return equalizer SRE 100 in the location RTN EQ 4 Verify that the return input pad locations JXP JXP 1 JXP 3 and JXP 4 have 0 dB pads or JXP ZX jumpers installed 5 Ifyou require ICSs install them in the ICS locations illustrated in Figure 2 13 If you plan to install the ICSs later install JXP 2Bs to simulate the through loss of the ICSs This eliminates the need to rebalance the return path if you install the ICS later 6 Verify that the return pad JXP location located to the right of the return hybrid has a 0 dB pad or JXP ZX jumper installed Verify that the return thermal pad socket THERM located between the hybrid output and the SRE 100 has a 0 dB pad or JXP ZX jumper or a JXP TH C installed 8 Set the sweep equipment output level to the amplifier s design input level Add insertion point loss 9 Ifrequired change the return output pad and or equalizer to achieve as close as possible match of the reference level as compared to the node 10 Verify the sweep response of all insertion points if applicable 11 Verify that the pad and equalizer values are similar to the map design values For systems that must meet especially stringent return path flatness requirements you may need additional flatness response correction in the return path You can obtain additional flatness by installing the JXP RPC board in one of the return path JXP pad facilities The recommended location
34. e forward path of the amplifier provides an operational gain of 42 dB The operating gain includes provisions for the insertion loss of the input cable equalizer and required reserve gain to operate the Bode equalizer in the middle of its range standard four output forward path s electronics consist of four parallel three stage paths consisting of 1 pre amplifier input hybrid 2 intermediate amplifier midstage hybrid and 3 power doubling output hybrid The first two stages are common to both paths The pre amplifier stage provides a low noise figure while the output stage contributes the preferred power at low distortion The amplifier input provides a facility to install a cable equalizer and a socket for a model JXP B attenuator The attenuator and equalizer are customer installed options Several circuits comprise the mid stage amplifier The Bode equalizer is a voltage controlled device that receives its input from the manual gain control the automatic drive unit ADU the QAM automatic drive unit QADU the thermal drive unit TDU Following the Bode board the BDR controls response flatness and provides equalization and a JXP pad facility adjusts the RF level into the mid stage hybrid amplifier Because these losses are located interstage the noise figure 16 only significantly impacted by the insertion loss of the forward cable equalizer or a broadband cable simulator increase tilt after the midstage amplif
35. e test points Drop in capability of new electronics chassis to older BT housings Figure 1 1 illustrates a closed BT100 Figure 1 1 BT100 closed OH Q MOTOROLA I de D 100 Installation and Operation Manual 1 2 Introduction Figure 1 2 illustrates an open BT100 Figure 1 2 100 open BT100 Installation and Operation Manual Introduction 13 Using This Manual The following sections provide information and instructions to bench test install and operate the BT100 Section 1 Introduction provides a brief description of the product identifies the information contained in this manual and gives the help line telephone number and repair return information Section 2 Overview describes the BT100 and includes details on the various options and their functions Section 3 Amplifier Setup provides instructions for full configur
36. ench sweeping sssrin 4 1 Figure 5 1 Center conductor pin length sssrinin 5 1 Figure 5 2 Torque sequence ener teniente sisi tertii tsi A EA E 226 5 2 Tables Table 2 1 BT100 options and 55 5 Table 3 1 Starline Forward Equalizers SFE 100 Table 3 2 Starline cable simulators nee Table 3 3 Gain reserve versus ambient temperature BT100 Installation and Operation Manual Section 1 Introduction The Motorola 1GHz STARLINE series of Broadband Telecommunications Amplifiers model BT100 accept a single input and provide high operational gain to three or four power doubled bridger outputs in a three stage hybrid design The BT100 amplifier series meets Telcordia GR 1098 core voltage surge requirements using surge waveforms as described in IEEE C62 41 The BT100 is also FCC CE and CCC approved BT100 features include 1003 MHz power doubling technology in enhanced gallium arsenide E GaAs Ergonomics Multiple modular diplex filter frequency split options 16 dB return loss forward path 60 90 VAC line power option Power factor corrected power supply Auto controlled Bode equalization 20 dB directional coupler test points Optional return path ingress control accessories Two way operation capability 15 A AC bypass capability Externally accessibl
37. equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the Installation Manual may cause harmful interference to radio communications Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his her own expense Any changes or modifications not expressly approved by Motorola could void the user s authority to operate this equipment under the rules and regulations of the FCC You may find the following booklet prepared by the Federal Communication Commission helpful How to Identify and Resolve Radio TV Interference Problems Stock No 004 000 0342 4 U S Government Printing Office Washington DC 20402 Changes or modification not expressly approved by the party responsible for compliance could void the user s authority to operate the equipment Canadian Compliance This Class A digital apparatus meets all requirements of the Canadian Interference Causing Equipment Regulations Cet appareil num rique de la classe A respects toutes les exigences du R glement sur le mat riel brouilleur du Canada International Declaration of Conformity Motorola Inc 101 Tournament Drive Horsham PA 19044 U S A declare under our sole responsibility that the STARLINE Model BT100 to which this declaration relates is in conformity with one or more of the following standards EMC Standards EN55022 E
38. er factor correction that presents a near perfect power factor to the input line This reduces the AC current and improves the efficiency of the DC supply system that delivers 2 5 A at 24 VDC The AC input to the power supply is between 38 VAC and 90VACrms in two ranges with a line frequency from 50 Hz through 60 Hz A precision output regulator protects against overcurrent and short circuits If a short circuit is detected the power supply shuts down and the regulator initiates a sequence of line test pulses at approximately one half second intervals The regulator continues these pulses for the duration of the short circuit but returns to normal operation when the fault 15 cleared The power supply contains a two position 60 90 V selector that sets the start up voltage for 38 VAC or 55 VAC The BT100 is shipped with the selector in the 60 V position which 1s the standard configuration The selector should be switched to the 90 V position only for a 90 VAC system This sets the start up voltage at 55 Because this is only 5 V below 60 VAC it 15 100 Installation and Operation Manual 2 8 Overview not practical to switch to 90 V in a 60 VAC system There is no damage to the amplifier if the selector is not changed from the standard 60 V setting However changing the selector ensures that the DC supply does not turn on until the proper input voltage 38 VAC or 55 VAC is reached This prevents excessive loading of the system power sup
39. f the headend optical receivers Equipment required for return path alignment includes Full complement of JXP B pads and STARLINE Return Equalizers SRE 100 BT100 Installation and Operation Manual Amplifier Setup 3 13 Reverse signal generator must produce at least one signal within the return bandpass and have variable output Return sweep or alignment equipment It is recommended that you Do not remove or install the electronics chassis cover when the BT100 is powered Do not use wire jumpers to bypass the SRE 100 location Perform the return optical link set up before performing amplifier set up Specify reverse alignment design levels for a single carrier Consider sweep equipment as a single carrier and operate at design levels Do not include injection point losses in reverse design levels If JXP THERM devices JXP TH C are specified for level control they should be installed in the JXP THERM pad facility illustrated Figure 2 13 prior to alignment Alignment Procedure The return amplifier configuration includes one high gain 30 dB return amplifier hybrid and an appropriate SRE 100 equalizer All components are plug in and are easily installed To align the return path 1 Ifthe BT100 is powered remove all fuses before you perform the following steps 2 Install the design value pad in the return output pad location which is located directly beneath the JXP THERM 3 Install th
40. figurable options 5 For RoHS models add R to the end of the configuration string 100 Installation and Operation Manual 24 Overview Housing The BT100 RF amplifier and DC power supply circuitry are integrated into a single electronics chassis that is furnished in the BT 100 15 housing The housing protects the electronics from weather and dissipates internally generated heat Figure 2 4 illustrates the top view of the BT 100 15 housing and provides its dimensions Figure 2 4 BT 100 15 dimensions top view Ir ce 09 me Q MOTOROLA IRI Figure 2 5 illustrates a side view of the BT 100 15 housing and provides its dimensions 10 6 OQ O L G Figure 2 5 BT 100 15 dimensions side view BERRE Messenger clamp bolts BT100 Installation and Operation Manual Overview 2 5 Coaxial cable connections to the housing are made using conventional 5 8 inch x 24 threads per inch stinger type connectors Seven port plugs in the cover enable access to internal test points without opening the housing Two messenger clamps are attached to the side of the housing Figures 2 5 2 7 and are secured with 5 16 inch x 24 threads per inch stainless steel
41. gh the amplifier by 6 dB or by 38 dB By reducing the ingress level at the headend or monitoring point you can further isolate the ingress source After you isolate an ingress source to the last possible amplifier node or line extender you can shut the return path off at that location This limits the impact of the ingress on the remainder of the network while eliminating the source of ingress UH lt gt nom fy wii BT100 Installation and Operation Manual Overview 2 13 Options and Accessories The factory ships the BT100 as a fully functional unit but you must configure it appropriately for the field location requirements You must install the correct forward equalizer or broadband cable simulator and input pad to place the unit into service Section 3 Amplifier Setup provides information to assist you in this task Use model JXP B pads to control field signal levels To compensate for temperature install the ADU QADU or TDU before placing the BT100 into service You can install other items such as return thermal attenuators or ICSs at your discretion but these do not render the BT100 inoperative if they are not included Table 2 1 provides a comprehensive list of options and accessories for the BT100 amplifier See Section 8 Amplifier Setup or the Motorola online product catalog for additional information Table 2 1 BT100 options and
42. hassis cover for any reason shut off the AC power first Verify that all chassis cover screws are tightened to 10 12 in lbs Do not use wire jumpers to bypass the SFE 100 location Recognize that actual pad and SFE 100 values may differ slightly from their design values This is caused by factors such as walkout errors worst case data utilization during design and temperature variation from 70 F Secure the electronics chassis in the housing and torque to 18 to 22 in lbs to facilitate heat transfer and avoid damage from overheating Perform a bench alignment Pre aligning the BT100 response on the bench Section 4 Bench Testing for a system signature simplifies field alignment Field sweep the entire bandwidth of the amplifier to correct frequency response for passive signature and roll off Close the housing in accordance with the instructions in Section 5 Installation BT100 Installation and Operation Manual Amplifier Setup 3 3 STARLINE Forward Equalizers Select the appropriate model SFE 100 to compensate for cable attenuation versus frequency and to obtain the proper output tilt The BT100 is equipped with the BDR 1G interstage equalizer and flatness board which compensates for cable attenuation You must compensate for any cable or passive slope beyond that of the BDR 1G by selecting and installing the appropriate SFE 100 cable equalizer Equalizers are available in 1 dB steps from 0 dB to 22 dB The followi
43. he connected output port F2 Open the housing and remove the electronics chassis cover Refer to your system drawings or records to confirm the presence of the required options as described in Section 2 Overview Options and Accessories Reinstall the electronics chassis cover and torque the screws to 10 12 in lbs Test Equipment and Connections The equipment typically used for testing the 100 consists of a network analyzer such as the HP8712 or 8713 series a 60 90 VAC bench power supply a cable simulator a Motorola model SSP PIN power combiner and a variety of jumper cables adapters and fittings Fabricate a cable simulator that you can configure to provide the desired cable loss in 1 dB increments up to approximately 30 dB Then connect the test equipment as shown in Figure 4 1 Figure 4 1 Test equipment connections for bench sweeping BT100 test OUT Network analyzer 117 VAC Cable Power simulator combiner 60 90 VAC 3 BT100 Installation and Operation Manual 4 2 Bench Testing CAUTION To protect the network analyzer you must configure the SSP PIN power combiner to block AC power from the input port preserve signal quality verify that all unused ports are terminated CAUTION Before you begin the following subsection remove the input pad J XP IN before you apply power This is necessary to avoid damage to the hybrids Measuring For
44. hibits tilt Figure 3 3 illustrates the location of the BDR 1G board and the high end flatness adjustment capacitor Figure 3 3 Flatness controls High end flatness adjustment You can adjust the variable resistors and capacitors on the BDR 1G board to flatten the response across the passband Use C1 C2 C3 C4 C6 R2 R3 R4 R5 L4 L5 and L6 on the BDR 1G board illustrated in Figure 3 4 to obtain a flat response 100 Installation and Operation Manual 3 8 Amplifier Setup Figure 3 4 BDR 1G board top left bottom right 2
45. ier there is mid stage equalizer model MEQ 100 Following this MEQ 100 and various splitters there are JXP B pad sockets leading into the power doubling output stage The number of pads depends on the number of outputs configured 100 Installation and Operation Manual 2 10 Overview Accurate 20 dB directional coupler test points are available at the input and at the outputs of the amplifier Because these test points are 75 ohm source impedance they do not require special test probes After the output amplifier a second directional coupler provides signal to the optional ADU board As this signal is used only with the ADU you do not need to terminate this port when the ADU is not installed Figure 2 10 illustrates the interconnection between these components in the four output BT100 4 Figure 2 10 BT100 4 four output block diagram 20 dB TP C 2 RF wu ae 24 dB 2 0 dB 1 7 dB F 2 8 a ax I amp SX 1 0 dB R u 3 20 dB 2 TP Port 4 PEL 1 7 dB F 1 0 dB R 17 dBF Input X A0dBR 1 0 dB ort Pa RFI ac 20 dB E TP o a ar ORE B B x 2 a 1 7 dB F 1 0 dB R 3 20 dB m TP 0 4 FUSE 5 0 4 10 dB b B CN RE a i 7 88 0 4 dB 17 dBF E 1 0 dBR t 10 dB u 2 Port 2 FTEC 9 ACIN 5 module
46. in must meet advertised specifications for the return path 100 Installation and Operation Manual 44 Bench Testing Example 11 2 dB measured gain 1 0 dB equalizer insertion loss 1 1 dB power combiner 0 0 dB pads 4 6 dB cable simulator at 40 MHz 17 9 dB unit gain Completing the Test Procedures The amplifier is now approximately tailored for a specific field location Additional adjustments after installation are minor in nature Re install the fuses removed during testing Complete station records by recording pertinent information Remove test equipment connections and close the housing following instructions provided in Section 5 Installation Closing the Housing BT100 Installation and Operation Manual Section 5 Installation The field installation procedures presented in the following subsections assume that the amplifier was previously tested and bench aligned Cable power and RF signal must be available on the system Although it is preferable to have a full complement of channels available for balancing you can adjust the BT100 adequately with a limited number of channels You can install the BT100 housing on a messenger strand aerial or on a pedestal The following subsections provide details on each application Aerial Installation The housing is normally mounted horizontally below the strand with the electronics chassis removed to avoid possible damage during installati
47. is the JXP THERM pad facility However if you are using JXP THERMS in the return 100 Installation and Operation Manual 3 14 Amplifier Setup path you may install the JXP RPC in the return output pad facility or the common pad facility located prior to the return hybrid You can verify proper return alignment by injecting a carrier at the design level into any amplifier at random Proper alignment is achieved if you observe the reference level at the headend optical receiver output Return levels used for alignment are not necessarily operational system levels These levels vary from system to system due to differences in equipment architectures and design philosophies For an in depth analysis and discussion of the return path refer to Motorola reference guide Return Path Level Selection Setup and Alignment Procedure Powering and Surge Protection In conventional applications BT100s are powered either through the input port Port IN or the powering port Port 2 CAUTION the BT100 IN To avoid damage to the hybrids itis recommended that you remove the input pad XP IN before you apply power to A 20 ampere blade type fuse is furnished in each active port of the amplifier module and provides overcurrent protection for AC power applied to the input You can power the BT100 from the output without passing power through to the input port block power from the input port remove the 20 amp fuse located in the
48. lation Pedestal installation 15 similar to the aerial installation with the exception of temperature and mounting procedure In an aerial installation the cable and amplifier are subject to the same temperature In contrast pedestal installation provides a stable temperature environment for the buried cable while subjecting the elevated amplifier to higher temperatures The ADU QADU if installed functions the same as in an aerial installation and does not require further attention See Section 3 Amplifier Setup Amplifier Level Control for additional information Manual thermal compensation provided by the TDU can be inaccurate and result in signal level changes with ambient temperature change One approach to this problem is to select the least amount of cable setting low the This results in minimal gain change with temperature preferred approach is to install a JXP TH C thermal attenuator while operating the BT100 in the manual mode mount the 100 on a pedestal 1 Remove two 5 16 inch messenger clamp bolts located on the long sides of the BT100 housing 2 Locate the two 5 16 inch holes Figure 2 7 eleven inches center to center cast in the lower housing 3 Usethe two 5 16 inch bolts to install the BT100 to the pre drilled pedestal mounting plate and torque to 10 to 12 ft Ibs Grounding the BT100 The BT100 housing requires a good earth ground to function properly You can establish a good earth groun
49. ll the appropriate value This option compensates for gain changes with temperature in the return path This surge arrestor is used for overvoltage protection This option enables remote monitoring isolation and reduction of ingress on the return path by providing signal attenuation of 6 dB or cutoff of 38 dB typical The unit is shipped with jumpers in these locations The ICS can be ordered separately and customer installed To control the ICS you must install the LIFELINE status monitor available from AM Networks 100 Installation and Operation Manual 2 14 Overview Model Description Function MEQ 100 Cable equalizer This unit is selected to provide the desired station slope It is used in conjunction with the BDR board to provide additional tilt in the interstage section of the amplifier JXP RPC Return Path Correction This optional board provides additional flatness response Board correction in the return path for systems that must meet especially stringent return path flatness requirements Figure 2 13 illustrates the location of options and accessories in the BT100 Figure 2 13 BT100 Options and Accessories Forward Return TP TP equalizer or Manual Mid stage input return TP return Cable simulator level Bode pad pad input Diplex forward output SFE 100 or SCS board JXP JXP PortOUT filter outputs Output ADU TP Input AUTO MAN pad pad Auto Status forward Diplex pad Drive control ADU
50. mulators fit in the same location as the equalizers Table 3 2 and Figure 3 2 help you choose the correct simulators Table 3 2 Starline cable simulators SCS 1 2 3 4 5 6 7 8 9 10 Frequency Cable slope in dB 40 MHz 0 0 0 1 0 1 0 1 0 2 0 2 0 3 0 3 0 3 0 4 45 MHz 0 0 0 0 0 1 0 1 0 1 0 1 0 1 0 1 0 2 0 2 50 MHz 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 72 MHz 0 1 0 2 0 2 0 3 0 4 0 4 0 5 0 6 0 7 0 7 108 MHz 0 1 0 3 0 4 0 5 0 6 0 8 0 9 1 0 1 2 1 8 150 MHz 0 2 0 5 0 7 0 9 1 2 1 4 1 6 1 9 2 1 2 8 211 MHz 0 3 0 7 1 0 1 4 1 7 2 1 2 4 2 8 3 1 3 5 250 MHz 0 4 0 8 1 2 1 7 2 1 2 5 2 9 3 3 3 7 4 1 300 MHz 0 5 1 0 1 5 1 9 2 4 2 9 3 4 3 9 4 4 4 9 350 MHz 0 6 1 1 1 7 2 2 2 8 3 3 3 9 4 4 5 0 5 5 400 2 0 6 1 2 1 8 2 5 3 1 3 7 4 3 4 9 5 5 6 2 450 MHz 0 7 1 4 2 0 2 7 3 4 4 1 4 7 5 4 6 1 6 8 550 MHz 0 8 1 6 2 4 3 2 4 0 4 8 5 5 6 3 7 1 7 9 750 MHz 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 0 9 0 10 0 870 MHz 1 1 2 2 3 3 4 4 5 5 6 7 7 8 8 9 10 0 11 1 1003 MHz 1 2 2 5 3 7 4 9 6 2 7 4 8 7 9 9 11 1 12 4 50 MHz loss typical 1 0 1 0 40 40 40 40 10 1 0 1 0 10 BT100 Installation and Operation Manual 3 6 Amplifier Setup The information in Table 3 2 is shown as a graph in Figure 3 2 Figure 3 2 Frequency versus cable slope 1 1 D SCS 1 E SCS 2
51. ng examples describe how to choose the correct equalizer Example 1 The amplifier location includes 20 dB of cable at 1 GHz between its input and the preceding amplifier Consider cable loss only Exclude any flat loss due to splitters or other passive devices The internal equalizer model BDR 1G compensates for approximately 14 dB of cable Subtract this cable length from the 20 dB of this example 20 14 6 The SFE 100 6 is the proper equalizer in this case With this equalizer installed the amplifier reproduces the output tilt of the last upstream amplifier When selecting an equalizer choose the next lower value if the exact value is not available or in cases where the calculated value makes two choices possible Example 2 The BT100 amplifier is used in a link following a fiber node The fiber receiver output is flat and connects to the input of the amplifier through 18 dB of cable plus passive loss Determine which is the proper equalizer to achieve 11 dB output tilt from the 100 Calculate the equalizer value using the following equation TILT yt 810 SLOPE leq where required SFE 100 slope TILTout required amplifier output tilt SIG o signal input level at 54 MHz channel 2 SIGH signal input level at 1 GHz SLOPEieg interstage equalizer slope 14 dB From various references such as manufacturer s catalogs you can determine that at an operating frequency of
52. on Connections are made using standard pin type connectors with a nominal center conductor diameter of 0 067 inches The minimum length of the center conductor pin is 1 5 inches and the maximum length is 1 65 inches Longer pins can extend past the center conductor seizure mechanism and degrade the match Extremely long pins can result in a short circuit Figure 5 1 Center conductor pin length 1 65 Max 1 50 Min install the unit 1 Power down the cable before you install the housing This avoids blown fuses tripped circuit breakers and possible personal injury 2 Mount the housing and torque the two 5 16 inch messenger clamp bolts located on the long sides of the housing illustrated in Figures 2 5 and 2 7 to 12 ft lbs 3 Form the customary expansion loops and make all cable connections according to system design 4 Tighten the center conductor seizure screw using a Phillips head screw driver An alternative method is to use a 3 16 inch socket and a torque wrench The recommended torque is 12 in lbs maximum 5 To avoid water ingress ensure that aluminum connectors are torqued to the specifications recommended by the connector manufacturer 6 If previously removed re install the electronics chassis and fasten it to the housing with the six captive bolts Torque to 18 to 22 in lbs 7 Remove the input pad JXP IN to avoid damage to the hybrids BT100 Installation and Operation Manual 5 2 Installation 10
53. otection options BT100 Installation and Operation Manual 32 Amplifier Setup Forward Path Alignment You must perform the following BT100 alignment procedures for proper performance in the forward path Select the appropriate cable equalizer or cable simulator Select the appropriate input midstage and output pads Verify proper flatness control Verify proper level control Before You Begin Before you begin to set up the amplifier and perform forward path alignment please read the following instructions and recommendations For proper forward alignment obtain RF output levels and tilts of all BT100s in the forward or return path RF input level for the BT100 being set up from system design or as built map A carrier at the system s highest frequency It can be modulated or continuous wave CW and should be inserted in the headend at standard video levels This carrier is used to simplify field set up It is recommended that you Install the system design value SFE 100 and a high value 20 dB or above forward input pad JXP IN before you install or remove the electronics chassis or apply power to the BT100 Leave the forward input pad location open if a high value pad is not available more accurate forward input test point reading 1s achieved with a high value pad installed Do not remove or install the electronics chassis cover while the BT100 is powered If you need to remove or install the electronics c
54. ply during turn on after system shutdown power supply also includes the fast transfer electronic crowbar FTEC BTA surge protector except for the basic models BT 100 H which include a gas discharge tube The FTEC BTA fires at approximately 245 V and presents a short circuit to the line during periods of over voltage After the AC input voltage returns to normal the FTEC BTA resumes its open state Although the power supply is located under the electronics chassis you can access the gas discharge tube or FTEC BTA through the cover on the top side of the electronics chassis Figure 2 8 illustrates the location of the 60 90VAC voltage selector on the power supply circuit board Figure 2 8 BT100 power supply Power supply 60 or 90 VAC circuit board voltage selector shown in 60 V position You must remove the power supply cover to access the selector illustrated in Figure 2 8 Section 3 Amplifier Setup explains changing the setting of this selector to meet system requirements BT100 Installation and Operation Manual Overview 2 9 The factory provides 20 ampere fuses to power additional amplifiers Figure 2 9 illustrates the location of these fuses Power to each output port is also provided through 20 ampere fuses You can remove the fuses to eliminate power at any of the ports Figure 2 9 Fuse locations F7 F1 F6 F5 F4 ilr F3 FTEC F2 Forward Path Th
55. protected Compliance with proper handling procedures can significantly reduce ESD and EOS related failures To avoid excessive signal level which causes EOS follow the procedures listed below Field Practice Proper field procedures include Installing the system design value forward equalizer and a high value 20 dB or above input pad before you install or remove the electronics chassis or activate the system This significantly reduces RF signal level and avoids possible EOS which can damage the hybrids Leaving the input pad location open if a high value pad is not available A more accurate forward input test point reading 15 achieved with a high value pad installed Avoiding handling of the hybrids If you need to remove or install the hybrids follow proper ESD grounding practices as stated under Bench Setup Bench Setup Proper bench handling practices include Grounding of the test bench with ESD matting on the work surface and wearing a wrist strap connected to a continuous ground monitor checker These practices are particularly important when handling hybrids Terminating all unused ports with a 75 ohm load Securing all electronics module cover screws or removing the cover completely Loose screws can cause the 100 to oscillate and degrade performance To successfully setup the BT100 you need to perform the following tasks Forward path alignment Return path alignment Check powering and surge pr
56. put level at the input test point 750 MHz channel 116 870 MHz channel 136 1003 MHz channel 158 This carrier should be at standard analog level non scrambled 5 Verify that the input level agrees with the design specification input If the level is different from design adjust accordingly For example the design level is 19 dBmV at the highest frequency and the design pad value is JXP 3B If the actual measured level is 21 dBmV then you must change the pad to a JXP 5B If the actual levels are significantly different from the design levels it is recommended that you investigate or consult system management before proceeding 6 Connect the signal level meter to the output test point and tune the meter to the high end channel 7 Turn the manual gain reserve MAN control illustrated in Figure 2 13 to maximum fully clockwise and then reduce the output as noted in Table 3 3 below Table 3 3 Gain reserve versus ambient temperature Temperature Gain Reserve Above 110 F 43 C 3 dB 32 F 0 C to 110 F 43 C 4 dB Below 32 F 0 C 5 dB 8 Check the amplifier output tilt by measuring the high band and low band edge carriers High channel 116 745 25 MHz channel 136 865 25 MHz or channel 158 997 25 MHz BT100 Installation and Operation Manual 3 10 Amplifier Setup Low channel 2 55 25 MHz or channel 3 61 25 MHz Ifthe tilt is less than required install a higher value input equalizer Ifthe
57. strap attached to a chassis ground to prevent ESD damage This equipment operates over the marked Voltage and Frequency range without requiring manual setting of any selector switches Different types of line cord sets may be used for connections to the mains supply circuit and should comply with the electrical code requirements of the country of use It is recommended that the customer install an AC surge arrestor in the AC outlet to which this device is connected This is to avoid damaging the equipment by local lightning strikes and other electrical surges Caring for the Environment by Recycling When you see this symbol on a Motorola product do not dispose of the product with residential or commercial waste Recycling your Motorola Equipment Please do not dispose of this product with your residential or commercial waste Some countries or regions such as the European Union have set up systems to collect and recycle electrical and electronic waste items Contact your local authorities for information about practices established for your region If collection systems are not available call Motorola Customer Service for assistance FCC Compliance This equipment has been tested and found to comply with the limits for a Class A digital device pursuant to Part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment This
58. t has no effect on the overall performance of the BT100 If necessary to achieve the amplifier gain specification you can use the midstage pad JXP or output pads JXP OUT JXP 1 JXP 3 and 4 to reduce the gain of the BT100 However this will affect amplifier performance Output padding degrades the station distortion performance while having minimal effect on the carrier to noise performance Midstage padding 13 the opposite and therefore has little effect on distortions but degrades the carrier to noise performance In general we recommend you pad to the amplifier gain specification on the output However if you are unsure about the optimal padding technique for your system we recommend you split the required padding evenly between the midstage and output pads It is recommended that you contact Motorola s TRC or your account representative for more specific information regarding use of the midstage and output pads 100 Installation and Operation Manual Appendix A Specifications Specifications are valid over the given bandpass and operating temperature range of 40 F to 140 F 40 C to 60 C Specifications are stated typical unless otherwise noted and are subject to change Refer to the Motorola CHS web site or contact your account representative for the latest specifications Model BT100 Specification Passband Gain Full Operational Flatness 52 through 1003 MHz Level control automatic Gain control
59. tilt there will be some loss in gain from the published operational specification at 1 GHz For example 42 dB 1 GHz 100 with 14 dB of output tilt will lose approximately 1 3 dB of gain at 870 MHz resulting in approximately 40 7 dB of gain at 870 MHz If you need to adjust tilt you may accommodate by changing the forward equalizer SFE value Also to avoid any additional loss in gain it is optimal to use the equalizers that match the system frequency For an 870 MHz system the SFE 87 s are the best choice even in a 1 GHz amplifier Note also that the equalizer cuts off at the frequency value for which it is designed For example an SFE 87 cuts off frequencies above 870 MHz Therefore if you have a 1 GHz system and need the equalizer to perform to 1 GHz you must use an SFE 100 Using Amplifiers in Lower Gain Systems There are three pad facilities in the forward path 1 1s the pad location JXP IN at the input to the amplifier 2 16 the midstage pad JXP located between the pre amplifier and the interstage hybrid and 3 are the output pads JXP OUT JXP 1 JXP 3 and JXP 4 located between the interstage hybrid and the output hybrids The input pad JXP IN is normally changed to accommodate excessive input levels When operating at the same output levels a BT100 with an input pad has the same carrier to noise c n and distortion performance as a BT100 without the input pad Because it only attenuates excess signal i
60. tylistic conventions used in this manual Bold type Indicates text that you must type exactly as it appears or indicates a default value SMALL CAPS Denotes silk screening on the equipment typically representing front and rear panel controls input output 1 connections and LEDs asterisk Indicates that several versions of the same model number exist and the information applies to all models when the information applies to a specific model the complete model number is given Italic type Denotes a displayed variable or is used for emphasis BT100 Installation and Operation Manual 14 Introduction If You Need Help If you need assistance while working with the BT100 contact the Motorola Technical Response Center Inside the U S 888 944 HELP 1 888 944 4357 Outside the U S 215 323 0044 Motorola Online http ousinessonline motorola com The TRC is on call 24 hours a day 7 days a week In addition Motorola Online offers a searchable solutions database technical documentation and low priority issue creation and tracking Technical Response Center Qo MOTOROLA Telephone Menu Options Connected Home Solutions 888 944 HELP 215 323 0044 A http businessonline motorola com p seins ee e e frase e e Video Products e Satellite IRD or PRESS 1 e Encoder Products e PRESS 2 e 2 pore PRESS 1 PRESS 2 PRESS 3 PRESS 1 PRESS 2 Controllers Headend
61. utput test points Bode Equalization The Bode board which is an electronically controlled equalizer receives its control input from the ADU or QADU control boards The response of the Bode board compensates for cable BT100 Installation and Operation Manual Amplifier Setup 3 9 attenuation changes due to temperature If necessary you can control the Bode board manually using the potentiometer labeled manual level MAN in Figure 2 13 Amplifier Level Control Signal levels vary in a cable system primarily because cable attenuation changes with temperature Other components such as passives and amplifier hybrids are also affected by temperature changes To automatically compensate for these signal level fluctuations and control output level you must select the optional ADU QADU or TDU The use of the ADU QADU or TDU is recommended for improved output level stability When necessary and appropriate you can also use manual gain control The gain of the BT100 13 then determined by the potentiometer marked MAN on the electronics chassis cover Manual Gain Control To use manual gain control 1 Verify that the electronics chassis is installed correctly 2 Ensure that there is continuity in the forward path by installing the design value forward equalizer and design value input JXP B attenuator 3 Ensure that the drive control select jumper is in the MAN position 4 Usea signal level meter to measure the high band edge carrier in
62. ward Gain This subsection provides instructions for measuring the full gain and the operational gain and flatness of the BT100 To measure the full gain of the amplifier 1 Determine whether the power supply jumper is positioned for 60 V or 90 V operation 2 Connect the BT100 to the test equipment as illustrated in Figure 4 1 and apply power 3 Verify that the DC voltage is 24 V 0 4 V and re install the input pad 4 Apply the sweep signal and adjust test equipment as needed 5 Select manual gain by placing the drive control select jumper in the MAN position and turn the MANUAL LEVEL control MAN Figure 2 13 fully clockwise 6 Measure the gain at mixed forward frequency using the procedure outlined in the operator manual provided with the test equipment in use To correct this number add the insertion loss of the SSP PIN power combiner 0 6 dB at 750 MHz 0 7 at 870 MHz or 1 1 dB at 1 GHz the loss of the cable simulator at mixed forward frequency and the loss of the cable equalizer 1 0 dB if it is installed Example The test equipment indicates a measured gain of 24 dB with a BT100 and the cable simulator is set to 20 dB 1 1 dB power combiner 1 0 dB cable equalizer 20 0 dB cable simulator 24 0 dB measured gain 46 1 dB unit gain The result must meet advertised specifications for the unit The operational gain of the BT100 provides reduced gain capability This enables the unit to operate in the

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