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Motorola BLE Series, Инструкция по установке и эксплуатации

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BLE */*  Ins talla tion and  Op eration  Manual 

Section 4 

B e n c h   Te s t i n g  

Motorola’s recommended procedure for placing a new BLE*/* into service is to fully test it on the 
bench before it is field installed. There are specific alignment procedures that ensure proper 
functioning of all components and simplify final installation. If the BLE*/* is properly aligned 
on the bench only minor adjustments may be required in the field. 

The following subsections provide instructions to bench align the BLE*/*. 

B e f o r e   Y o u   B e g i n  

The BLE*/* is shipped with a 20 ampere blade-type fuse for overcurrent protection. 

To avoid 

applying 60/90 Vac to the test equipment during testing, remove the fuse illustrated in 
Figure 2-9

. 

Open the housing and remove the chassis cover. Refer to your system drawings or records to 
confirm the presence of the required options as described in Section 3, “Amplifier Setup,” 
Forward Path. 

T e s t   E q u i p m e n t   a n d   C o n n e c t i o n s  

The equipment typically used for testing the BLE*/* consists of a network analyzer such as the 
HP 8711, 8712 or 8713 series, a model 1076 sweep comparator, and a model 1901C display or 
equivalent. In addition, you need a 60/90 Vac bench power supply, 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: 

Fig ure   4 -1   
Te st equi pmen t co n nections  for bench s weeping 

A

S

S E

M B LE

D

I

N

  M

E

X

I C

O

4

2

6

3

1

5

Sweep

comparator

Network

analyzer

BLE-*/*

under test

Cable

simulator

Display

Power

combiner

117
Vac

AC power

supply

60/90 Vac

Sweep

input

Sweep

output

 

To protect the network analyzer and sweep comparator, you must configure the SSP-PIN power 
combiner to block ac power from the input port. 

Содержание BLE Series

Страница 1: ...B L E B r o a d b a n d L i n e E x t e n d e r I n s t a l l a t i o n a n d O p e r a t i o n M a n u a l S T A R L I N E A S SEMBL E D I N M E X I C O 4 2 6 3 1 5 ...

Страница 2: ...en the equipment is operated in a commercial environment This 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 i...

Страница 3: ... 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 The General Instrument logo STARLINE LIFELINE and OmniStar are registered trademarks ...

Страница 4: ...Supply 2 6 Power Factor Corrected Power Supply 2 7 Forward Amplifier 2 7 Return Amplifier RA Kit H or RA Kit L 2 8 Ingress Control Switch 2 8 Options and Accessories 2 9 Section 3 Amplifier Setup Forward Path Alignment 3 1 Before You Begin 3 1 Cable Equalizer 3 1 Example 1 3 2 Example 2 3 2 Starline Cable Simulators 3 5 Input and Midstage Pads 3 6 Flatness Control 3 6 Directional Coupler Test Poin...

Страница 5: ... 1 Measuring Forward Gain 4 2 Example 4 2 Testing Return Gain and Response 4 3 Completing the Test Procedures 4 3 Section 5 Installation Aerial Installation 5 1 Pedestal Installation 5 3 Section 6 Operating Tips Using the Midstage Pad 6 1 Appendix A Specifications Model BLE87S G A 1 Model BLE87S A 2 Model BLE75S G A 3 Model BLE75S A 4 AC Current BLE75 BLE87 Standard Power Supply A 4 RA Kit L Retur...

Страница 6: ...test points and accessories in the BLE 2 11 Figure 3 1 Equalizer slope versus cable 3 4 Figure 3 2 Frequency versus cable slope 3 6 Figure 3 3 LDR II component layout 3 7 Figure 3 4 Typical flatness and control ranges 3 8 Figure 3 5 TDU cable selector 3 10 Figure 3 6 ADU 3 11 Figure 4 1 Test equipment connections for bench sweeping 4 1 Figure 5 1 Center conductor pin length 5 1 Figure 5 2 Torque s...

Страница 7: ...pecifications for overvoltage testing as recommended by Cable Labs The latest BLE platform is also FCC and CE approved Features of the BLE include 750 MHz or 870 MHz power doubling technology in enhanced gallium arsenide E GaAs or silicon Several different modular diplex filter splits Ease of use ergonomics 60 90 Vac line power option Thermal and auto controlled Bode equalization 20 dB directional...

Страница 8: ...XP IN JXP IN BLE 55 87 75 J G MAN AUTO JXP MID TDU MAN ADU ADU M T RCB87 FUSE FUSE REFER TO MANUAL FOR FUSE VALUES ASSEMBLED IN MEXICO ICS OUT CHECK VOLTAGE SELECTOR REFER TO MANUAL BODE IN L L H H CAUTION CONTAINS PARTS AND ASSE MBLIES S US CE PTIBLE TO DAMAG E BY E LE CTRO STATIC DIS CHARGE ESD 20dB Align Dots 20dB 20dB 16dB 20dB STATUS MONITOR 24V DC TEST POINT STATUS MONITOR AC TEST POINT ADU ...

Страница 9: ...tions for the screws clamps connectors and bolts used in the BLE Abbreviations and Acronyms The Abbreviations and Acronyms list contains the full spelling of the short forms used in this manual This installation 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 o...

Страница 10: ...creation tracking 24 hours per day 7 days per week Calling for Repairs If repair is necessary call the Motorola Repair Facility at 1 800 227 0450 for a Return for Service Authorization RSA number before sending the unit The RSA 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 outsi...

Страница 11: ...integrated dc power supply which is normally furnished complete in the model BLE HSG 15 housing as shown in Figure 2 1 Figure 2 1 BLE line extender LDR FWD EQ RTN EQ JXP THERM E JXP OUT S A K JXP IN JXP IN BLE 55 87 75 J G MAN AUTO JXP MID TDU MAN ADU ADU M T RCB87 FUSE FUSE REFER TO MANUAL FOR FUSE VALUES ASSEMBLED IN MEXICO ICS OUT CHECK VOLTAGE SELECTOR REFER TO MANUAL BODE IN L L H H CAUTION C...

Страница 12: ...MHz 5 42 MHz 54 750 MHz 5 30 MHz 47 750 MHz 5 80 MHz 108 750 MHz 10 47 MHz 54 750 MHz 10 47 MHz 54 870 MHz 5 40 MHz 52 870 MHz 5 55 MHz 70 870 MHz 5 65 MHz 85 870 MHz 5 42 MHz 54 870 MHz 5 30 MHz 47 870 MHz 5 80 MHz 108 870 MHz 75J 75A 75K 75E 75M 75T 87S 87J 87A 87K 87E 87M 87T Frequency Range BLE Key X Standard Deep lid for status monitor None Electronics only D N Housing Size Key X 20AAuto Fuse...

Страница 13: ...0 6 8 0 4 7 A S SEMBL E D I N M E X I C O 4 2 6 3 1 5 Coaxial cable connections to the housing are made using conventional 5 8 inch 24 threads per inch stinger type connectors Four port plugs in the cover enable access to internal test points without opening the housing The BLE HSG 15 differs from the housing of the 10A BLE model BLE 75SH and BLE 75JH and the JLX series of line extenders However t...

Страница 14: ...ches center to center Use these holes and the bolts from the messenger clamps for pedestal and surface mounting installations Gaskets Each housing is equipped with a recessed woven wire RF gasket and a silicone rubber gasket to provide a seal between the housing base and lid These gaskets provide efficient ground continuity RF shielding and weather protection Both gaskets must be in place and in g...

Страница 15: ...NUAL BODE IN L L H H CAUTION CONTAINS PARTS AND ASSE MBLIES SUS CE PTIBLE TO DAMAG E BY E LE CTRO STATIC DIS CHARGE ESD 20dB Align Dots 20dB 20dB 16dB 20dB STATUS MONITOR 24V DC TEST POINT STATUS MONITOR AC TEST POINT ADU JXP Weather gasket silicone rubber RF gasket woven wire Port Locations Two housing ports provide connection for coaxial cables Four port plugs in the cover enable access to inter...

Страница 16: ...6 6 6 O v e r v i e w BLE Installation and Operation Manual Figure 2 5 illustrates the housing port locations Figure 2 5 Housing ports A S SEMBL E D I N M E X I C O 4 2 6 3 1 5 Test ports Test ports Port 1 Port 2 ...

Страница 17: ... PROTECTOR X1 D1 L8 P1 1 R25 Surge protector or FTEC LO HI selector The power supply also contains a two position LO HI selector that sets the start up voltage for 38 Vac or 55 Vac The BLE is shipped with the selector in the LO position which is the standard configuration The selector should be switched to the HI position only for a 90 Vac system This sets the start up voltage at 55 Vac Because th...

Страница 18: ...D5 D4 D7 Q2 Q3 Q1 R7 L3 L4 U3 C27 C15 D3 C4 C24 C11 C25 C16 C14 C3 U4 T2 T1 C1 C2 D8 R14 D1 F1 L1 C23 C28 J1 C26 C18 Surge protector or FTEC LO HI selector R14 Forward Amplifier The operational gain of the 750 MHz silicon version is 29 dB with 15 dB of return loss The 870 MHz silicon version achieves 30 dB operational gain with a return loss of 15 dB All E GaAs BLE amplifiers achieve 28 dB of gain...

Страница 19: ...ifier kit model RA Kit H or RA Kit L includes the return amplifier hybrid and jumpers The standard circuit board contains all components including the diplex filters with extended return bandwidth for the amplifier input and output All items are plug in and easily installed The input and output of the return amplifier include two JXP T pad facilities You can also use either pad socket as a test po...

Страница 20: ...1 Options and accessories for the BLE Model Description Function ADU Automatic Drive Unit This board automatically controls amplifier output levels that change with cable attenuation and hybrid output The selection of a pilot frequency is required TDU Thermal Drive Unit This board controls amplifier gain and slope for changes in cable attenuation for the sensed temperature RA Kit H or L Return Amp...

Страница 21: ...o contain the LIFELINE status monitor module RCB87 Response Correction Board This optional board compensates for system roll off at 870 MHz The BLE is shipped with a jumper in this location which you can replace when additional response correction is required JXP RPC Return Path Correction board This optional board provides additional flatness response correction in the return path for systems tha...

Страница 22: ...e board LDR TP forward output use for status monitor Manual level MAN ADU pad JXP Optional RCB TP return output Diplex filter Return output pad JXP OUT Return equalizer SRE Optional thermal pad JXP therm Status monitor connector Return hybrid 20A fuse From status monitor Return pad JXP IN Auto level ADU Diplex filter TP return input Power block Optional ICS In the event of ADU or TDU board failure...

Страница 23: ...s package E pack or apply power to the BLE Do not use wire jumpers to bypass the SFE location Recognize that actual pad and SFE 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 E pack in the housing and torque to 18 22 in lbs to facilitate heat transfer and a...

Страница 24: ...ing a fiber node with flat output There is 16 dB of cable between the node and the line extender plus passive losses which are assumed to be flat Which is the proper equalizer to achieve the 10 dB of output tilt In this case calculate the equalizer value by using the following method SLOPEeq TILTout SIGlo SIGhi SLOPEieq where SLOPEeq required SFE 87 slope TILTout required amplifier output tilt SIG...

Страница 25: ...4 10 4 11 4 7 8 6 1 4 2 3 0 2 0 1 0 12 8 9 9 9 6 8 5 4 3 7 2 7 1 8 1 0 10 7 4 8 4 5 8 4 7 3 3 2 4 1 7 1 0 8 5 9 6 9 4 9 3 9 2 8 2 1 1 6 1 0 6 4 5 5 5 3 9 3 2 2 4 1 9 1 4 1 0 4 3 0 4 0 2 9 2 5 1 9 1 6 1 3 1 0 2 1 5 2 5 2 0 1 7 1 5 1 3 1 1 1 0 SFE 87 22 16 7 17 7 12 4 10 0 7 1 5 4 3 9 2 5 1 0 20 15 2 16 2 11 4 9 2 6 5 5 0 3 6 2 3 1 0 18 13 7 14 7 10 3 8 4 6 0 4 6 3 4 2 2 1 0 16 12 1 13 1 9 3 7 6 5 4...

Страница 26: ...lope versus equalizer value information presented in Table 3 1 as a graph The amount of cable equals the equalizer value Figure 3 1 Equalizer slope versus cable dB of Cable dB of Equalizer Slope 0 0 2 4 6 8 10 12 14 16 18 20 30 28 26 24 22 20 18 16 14 12 10 6 4 2 8 550 MHz 650 MHz 750 MHz 870 MHz Slope versus Cable ...

Страница 27: ... 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 3 150 MHz 0 2 0 5 0 7 0 9 1 2 1 4 1 6 1 9 2 1 2 3 211 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...

Страница 28: ...ation and recommendations Flatness Control The LDR II circuit board includes flatness controls and a fixed cable equalizer for 750 MHz or 870 MHz This equalizer plus the contribution of the hybrid gain stages produces approximately the dB of slope indicated by the model number 8 dB of tilt with an LDR 8 II The LDR II variable resistors and capacitors can be adjusted to flatten the response from ma...

Страница 29: ...peration Manual C3 produces a peak that is centered at approximately 400 MHz and varied in amplitude by R3 Air coils on the bottom of the LDR II board may slightly tune the upper portion of the response Figure 3 3 LDR II component layout R1 C1 R2 C2 R3 C3 R8 C7 C8 C6 ...

Страница 30: ...ble at the input and at the output of the BLE 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 board This signal is used only when the ADU board is installed It is not necessary to terminate this port when the ADU is not installed Bode Equalization The Bode board wh...

Страница 31: ... design adjust accordingly For example the design level is 19 dBmV at the highest frequency and the design pad value is JXP 3T If the actual measured level is 21 dBmV then you must change the pad to a JXP 5T 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 t...

Страница 32: ... within 1 dB of the system design level If it is not change the input pad JXP IN to a higher or lower value to achieve the proper level The midstage pad JXP MID normally remains at 0 dB but can be used to adjust the gain level and achieve the gain specification Refer to Section 6 Operating Tips for midstage padding information and recommendations Thermal Drive Unit The TDU senses temperature and c...

Страница 33: ...arily to the MAN position and perform the complete procedure described in Manual Gain Control if not already completed 2 Verify that the frequency stamped on the ADU control unit is the same as the system pilot frequency The pilot frequency is a CW or an available NTSC television channel not scrambled using sync suppression and not a digital channel 3 Position the drive control select jumper to AU...

Страница 34: ... 56 13 13 13 13 49 53 57 The use of the ADU or TDU is recommended for improved output level stability although you can operate the BLE in the manual mode Select manual mode by placing the drive control select jumper illustrated in Figure 2 9 in the MAN position The gain of the BLE is then determined by the potentiometer marked MAN on the amplifier cover Return Path Alignment The following subsecti...

Страница 35: ...in and are easily installed To align the return path 1 If the BLE is powered remove all fuses before you perform the following steps 2 Carefully install a reverse hybrid amplifier if necessary and install the design value pad and equalizer in the output locations 3 Ensure that both hybrid screws are tight Torque the screws to 10 to 12 in lbs Over torque can damage the hybrid 4 Verify that there is...

Страница 36: ...ustrated 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 BLE is shipped from the factory configured for 38 through 90 Vac powering as described in Section 2 Overview To configure the line extender for 55 Vac through 90 Vac operation 1 Remove the E pack from the ho...

Страница 37: ...ired options as described in Section 3 Amplifier Setup Forward Path Test Equipment and Connections The equipment typically used for testing the BLE consists of a network analyzer such as the HP 8711 8712 or 8713 series a model 1076 sweep comparator and a model 1901C display or equivalent In addition you need a 60 90 Vac bench power supply a Motorola model SSP PIN power combiner and a variety of ju...

Страница 38: ...50 MHz 0 6 dB at 750 MHz or 0 7 dB at 870 MHz 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 12 5 dB with a BLE75S and the cable simulator is set to 20 dB 0 8 dB power combiner 1 0 dB cable equalizer 20 0 dB cable simulator 12 5 dB measured gain 34 3 dB unit gain The re...

Страница 39: ... Reconnect the test equipment and switch the sweep input and sweep output leads of the BLE under test to be opposite of the connection shown in Figure 4 1 2 Remove the power block and replace the 20 A fuse both illustrated in Figure 2 9 before you apply power 3 Re adjust the test equipment to sweep from 4 MHz through the maximum return band frequency plus 10 MHz The expected response is flat Any t...

Страница 40: ... n g BLE Installation and Operation Manual 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 ...

Страница 41: ...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 To 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 5 16 inch ...

Страница 42: ...eter 9 Check the dc voltage Verify that it is between 23 6 V and 24 4 V and reinstall the input pad 10 If necessary rebalance the amplifier following the instructions in Section 3 Amplifier Setup 11 Check the tightness of the chassis cover screws 10 to 12 in lbs and E pack hold down bolts 18 to 22 in lbs 12 Check the condition of the RF and weather gaskets 13 Close the housing and use a torque wre...

Страница 43: ...trast pedestal installation provides a stable temperature environment for the buried cable while subjecting the elevated amplifier to higher temperatures The ADU if installed functions the same as in an aerial installation and does not require further attention Manual thermal compensation provided by the TDU can be inaccurate and result in signal level changes with ambient temperature change One a...

Страница 44: ...d There are two pad facilities in the forward amplifier One is the conventional pad location at the input to the amplifier JXP IN and the other location is between the pre amplifier and the output stage JXP MID The input pad JXP IN is normally changed to accommodate excessive input levels When operating at the same output levels a BLE with an input pad has the same carrier to noise c n and distort...

Страница 45: ...m Level control automatic Bode board using ADU TDU Gain control Fixed pads JXP T Performance reference frequency MHz 870 750 52 870 550 52 870 550 52 at typical output dBmV 43 47 37 47 5 48 5 41 5 43 44 37 Channels 112 analog 120 MHz digital suppressed by 6 dB 79 analog 320 MHz digital suppressed by 6 dB 79 analog 320 MHz digital suppressed by 6 dB Crossmod worst case 59 dB 54 dB 63 dB CTB worst c...

Страница 46: ...eference frequency MHz 870 750 52 870 550 52 at typical output dBmV 43 47 37 43 44 37 Channels 112 analog 120 MHz digital suppressed by 6 dB 79 analog 320 MHz digital suppressed by 6 dB Crossmod worst case 58 dB 63 dB CTB worst case 61 dB 70 dB CSO worst case 66 dB 73 dB Noise figure at 52 MHz 9 dB with SFE 1 at 870 MHz 9 dB with SFE 1 Interstage equalizer 8LDR 8 II 8 1 dB Hum modulation 70 dB Ret...

Страница 47: ...0 52 750 550 52 750 550 52 at typical output dBmV 47 37 45 5 48 5 41 5 41 44 37 Channels 112 analog 79 analog 200 MHz digital suppressed by 6 dB 79 analog 200 MHz digital suppressed by 6 dB Crossmod worst case 59 dB 54 dB 63 dB CTB worst case 65 dB 63 5 dB 74 dB CSO worst case 68 dB 69 5 dB 74 dB Noise figure at 52 MHz 9 dB with SFE 1 at 750 MHz 9 dB with SFE 1 Interstage equalizer 7LDR 7 G II 7 1...

Страница 48: ... dB 63 dB CTB worst case 57 dB 69 dB CSO worst case 59 dB 68 dB Noise figure at 52 MHz 9 dB with SFE 1 at 750 MHz 9 dB with SFE 1 Interstage equalizer slope 7LDR 7 II 7 1 dB Hum modulation 70 dB Return loss input output 15 dB at operational level Test points input output 20 0 5 dB Housing dimensions 10 6 L 8 0 W 4 7 D inches 26 9 20 3 11 9 cm Weight 7 2 pounds 3 2 kg AC Current BLE75 BLE87 Standar...

Страница 49: ...Fixed pads JXP T input and output Performance at typical output 41 dBmV flat Channels 4 NTSC Crossmod 74 dB Single triple beat 82 dB Single second order 77 dB Noise figure 6 dB Power requirements 24 Vdc 125 mA ADU Automatic Drive Unit Parameter Specification Pilot channel See current catalog Adjacent channel frequency 6 MHz Minimum BLE output at pilot frequency 36 dBmV ALC stiffness 0 3 output cha...

Страница 50: ... 12 13 6 16 3 Housing lid closure 1 4 20 7 16 inch 72 6 0 8 1 Test point plugs 5 8 24 1 2 inch 25 40 2 1 3 3 2 8 4 5 Seizure screw 8 32 3 16 inch or Phillips 12 1 0 1 4 Hybrid 6 32 Phillips 10 12 0 8 1 0 1 1 1 4 Chassis E pack 10 32 5 16 inch 18 22 1 5 1 8 2 0 2 4 Chassis cover 6 32 1 4 inch or Phillips 10 12 0 8 1 0 1 1 1 4 Status monitor 10 32 triple lead 5 16 inch 24 30 2 0 2 5 2 7 3 4 Power su...

Страница 51: ...econd Order CTB Composite Triple Beat cw Continuous wave dB Decibel dBmV Decibels referenced to one millivolt FTEC Fast Transfer Electronic Crowbar ICS Ingress Control Switch MHz Megahertz NTSC National Television Standards Committee rms root mean square RSA Return for Service Authorization SAW Surface Acoustic Wave SCS Starline Cable Simulator SFE Starline Forward Equalizer SRE Starline Return Eq...

Страница 52: ...475100 001 99 8 01 ...

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