Bird Technologies Group 5PI616850 SIGAL BOOSTER 2 User Manual 9386S1 1

Bird Technologies Group SIGAL BOOSTER 2 9386S1 1

USERS MANUAL 4

Manual 7-9386-1 Page 18TX RX Systems Inc. 09/30/0461-68-50 UserMan page 18 of 25LED INDICATORSThere are LED indicators for each amplifier in thesystem as well as the +12 and +24 VDC powersupply voltages. The LED indicators for the low,mid, and low gain amplifiers are located on theindividual plug-in module. These are tri-color LED’swith green representing NORMAL operation,orange representing a WARNING condition, andred indicating a FAULT. A warning condition occurswhen the current draw of the amplifier exceedsnominal by +/- 20%. Fault conditions occur whenthe current draw exceeds +/- 30% or the amplifiersoperating temperature exceeds 80° Celsius. TheLED for the attenuator card is green only and indi-cates DC power applied to the card.The LED indicators for the power amplifiers arelocated on the display panel next to the menuselect buttons and are dual color LED’s. Green rep-resents NORMAL operation while red indicates aFAULT condition. Fault conditions occur when thecurrent draw exceeds 900 ma or falls below 200ma. Also, whenever the amplifiers operating tem-perature exceeds 95° Celsius. The power amplifi-ers do not have a warning state.The power supply LED indicators are located ondisplay panel next to the menu selection buttonsand are also dual color. Green representing normaloperation and red a fault condition. A fault conditionfor the +24 VDC supply occurs whenever the volt-age potential drops below +16 VDC (30% belownominal). Likewise, a fault for the +12 VDC supplyoccurs when the potential is below +8 VDC (30%below nominal).FORM-C CONTACTSForm-C contacts are available inside the cabinetnext to the power supply assembly, see figure 2.These screw terminals are intended for connectionto the customers supervisory alarm or data acqui-sition system. One set of terminals supplies notifi-cation of any alarm condition occurring and thesecond set of contacts indicate the system is oper-ating on battery backup power.PERFORMANCE SURVEYIt is a good idea to document the performance ofthe system after installation so that a referenceexists for future comparisons. This information canmake troubleshooting an interference problem orinvestigation of a complaint about system perfor-mance much easier. If there are coverage prob-lems with a system, this survey will usually revealthem allowing corrective measures to be takenbefore the system is put into routine use. The fol-SignalGeneratorZeroReferenceSpectrumAnalyzerGainSampleSampleTest PortTest PortFigure 8: Measuring signal booster gain.
Manual 7-9386-1 Page 19TX RX Systems Inc. 09/30/0461-68-50 UserMan page 19 of 25lowing is an outline of how to do such a survey.Because the nature of each installation can bequite different, only a broad outline is given.1) Measure the gain of the signal booster beingcareful not to exceed the maximum input level.Figure 8 shows this being done using a signalgenerator and spectrum analyzer. Record themeasured values for each passband. We rec-ommend that a 50 ohm load be connected tothe unused RF port on the bottom of the cabinetduring the gain test.2) The spectrum analyzer is connected to the -30dB signal sampler port following the final outputamp. This port will allow the observation of theamplifier output at a considerably reduced out-put level. This decoupling value (-30 dB) needsto be added to any measured signal value inorder to arrive at the actual signal level.3) With a spectrum analyzer connected to the sig-nal sampler port (see Figure 9), have person-nel with handheld radios move to severalpredetermined points and key their radios.Record the level of these signals as observedon the analyzer and also record the location ofthe person transmitting. In this way, a map ofthe systems performance can be generated.4) For signals coming from a fixed antenna or sta-tion, record the level of all the desired incomingsignals for future reference.MAINTENANCE AND REPAIRSignal boosters manufactured by TX RX Systems,Inc. can perform for years with little maintenanceand repair. However, if the amplifiers are subjectedto excessively high signal levels, power surges orlightning strikes, failures may occur. The followingprocedures may be followed for detecting a mal-functioning unit or as part of a periodic mainte-nance program.1) The heatsink area should be cleared of dustand debris.2) Inspect the unit to see that the two power sup-ply LED DC indicators are lit (remove any dustor debris that may obscure the LEDs). This willBoostedRF SignalSignal Distribution SystemSpectrumAnalyzer10 dB PadSampleSampleTest PortTest PortFigure 9: Methodology for doing a performance survey of the signal distribution system.
Manual 7-9386-1 Page 20TX RX Systems Inc. 09/30/0461-68-50 UserMan page 20 of 25verify that DC power is flowing properly. Checkall hardware for tightness.3) Compare system performance to initial perfor-mance levels measured when the system wasfirst installed. The lack of signal can be traced toa malfunctioning amplifier by progressive signalmonitoring from the output (far end) to the inputend of the system noting the area where thesignal returns to normal level. The next amplifiertoward the output end of the system will proba-bly be the one that failed.orMeasure the gain at any convenient frequencyin the working frequency band to verify that theperformance is still within specifications.Power Amplifier ReplacementThe SB II power amplifiers are field replaceable.Follow the steps listed below in sequential order.The required tools are a #1 Phillips screwdriverand a 5/16” open-ended wrench.Figure 10: Remove 14 mounting screws to detach amplifier assembly from cabinet.Remove ScrewsRemove ScrewsRemoveScrewsRemoveScrewsFigure 11: Slide amplifier towards bottom of cabi-net to remove upper cable.
Manual 7-9386-1 Page 21TX RX Systems Inc. 09/30/0461-68-50 UserMan page 21 of 25Note: Power to the SB II cabinet mustbe turned OFF during the poweramplifier replacement process.1) Remove the Phillips screws which hold theamplifier into place, refer to Figure 10. The nutsholding the screws are pressed into the cabinetand will remain in place when the screws areremoved.2) Slide the amplifier towards the bottom of thecabinet as far as it will go. This will allow the topRF connector to clear the opening. Tilt the topof the amplifier outwards and remove the topRF cable at the SMA connector using the 5/16”wrench. See Figure 11.3) Slide the amplifier assembly towards the top ofthe cabinet as far as it will go. This will allow thebottom RF connector and grey control cable toclear the opening. Tilt the bottom of the ampli-fier outwards and remove the bottom RF cableat the SMA connector and the grey controlcable. To remove the grey cable from the socketon the amplifier it is necessary to squeeze thetop and bottom of the connector together torelease a hold down tab. When properlysqueezed the grey cable will disconnect easilyfrom the amplifier. Refer to Figure 12.4) To replace the amplifier assembly repeat steps1 through 3 in reverse order. When replacingthe RF cables do not overtighten the SMA con-nectors. They should be tightened just slightlymore than hand tight or to the specification of 7in/lbs. The replacement amplifier comes with anattached gasket which must press up againstthe outside of the cabinet firmly and squarely inorder to provide a correct moisture seal.Module ReplacementThe SB II modules are field replaceable. Follow thesteps listed below in sequential order. The requiredtools are a #1 Phillips screwdriver. Two thumbscrews hold each module into place.Note: Power to the SB II cabinet mustbe turned OFF during the modulereplacement process except for theamplifier modules which are “HOT”switchable.1) Loosen the two thumb screws which hold themodule into place. Phillips screws are incorpo-rated into the thumbscrews and they may needto be loosened first.2) Grasping the two loosened thumb screws pullthe module straight out of the card cage.3) To install the replacement module place themodule into the guide-rails of the slot and pressdown firmly into place. Each type of module iskeyed uniquely to fit in only one slot within thecard cage. Once the card is seated into placeproperly tighten the thumb screws.The SB II low level and mid level amplifier stagesare field replaceable by simply removing the mod-ule and plugging in a replacement. These modulesare HOT switchable meaning they can be swappedwithout powering down the system. RF cablesattached to the modules must be removed (5/16”wrench) prior to swapping the modules and mustbe re-attached after the new module is in place.when replacing the RF cables do not overtightenthe SMA connectors. They should be tightened justslightly more than hand tight or to the specificationof 7 in/lbs.NOTENOTEFigure 12: Slide amplifier towards top of cabinet toremove lower cables.
Manual 7-9386-1 Page 22TX RX Systems Inc. 09/30/0461-68-50 UserMan page 22 of 25Modules can be swapped between the uplink anddownlink branches for troubleshooting purposes. Ifa problem exists in one branch and the problemmoves to the other branch when modules areswapped around this indicates a defective module.Note: After an amplifier module isreplaced use the Calibrate Currentssoftware function to properly set theamplifiers alarm trip point, see page10. Due to slight differences in compo-nent tolerances the trip point must be reset for anynew amplifier assemblies introduced into the sys-tem.Display/User Interface Assembly ReplacementThe SB II Display/User Interface assembly is fieldreplaceable. Follow the steps listed below insequential order. No tools are required.Note: Power to the SB II cabinet mustbe turned OFF during the display/userinterface replacement process.1) Loosen the two thumb-nuts which hold the dis-play/user interface assembly to the card cage.2) Gently tilt only the top of the assembly up fromthe card cage. Keep the bottom of the assemblyin place. The bottom mounting plate (part of thecard cage) has an overhang on it to support thedisplay/user interface board. If the assembly islifted straight out the overhang could possiblydamage the interface circuit board.3) With the display/user interface board standingup straight gently move it upwards while lifting itout about an inch or two. This should allow theoverhang to clear the interface circuit boardwithout damage.4) Remove the ribbon cable that connects the dis-play/user interface assembly to the card cage,see Figure 13.5) To replace the display/user interface assemblyrepeat steps 1 through 4 in reverse order.NOTENOTEFigure 13: Disconnecting the display/user interface assembly from the card cage.Disconnectribbon cablehere
Manual 7-9386-1 Page 23TX RX Systems Inc. 09/30/0461-68-50 UserMan page 23 of 25Power Supply ReplacementThe SB II power supply assembly is field replace-able. Follow the steps listed below in sequentialorder. The required tools are a #1 Phillips screw-driver.1) Turn off AC power at the junction box.2) Disconnect the 3 conductor cable that bringsAC power to the supply from the junction box.3) Disconnect the red and black leads from thepower supply that connect to the card cage.4) Remove the Phillips screws that hold the powersupply mount bracket to the back plate andremove the assembly from the cabinet.5) Reverse steps 4 through 2 to install the replace-ment power supply.Duplexer / Filter ReplacementThe component assemblies of the duplexer arefield replaceable. Follow the steps listed below insequential order. The required tools are a #1 Phil-lips screwdriver with an extended shaft to reachdown far enough into the unit to loosen mountingscrews.Note: Power to the SB II cabinet mustbe turned OFF during the assemblyreplacement process.1) All RF cables attached to the assembly must beremoved.2) Remove the Phillips screws that hold theassembly mount brackets to the back plate andremove the assembly from the cabinet.3) Reverse steps 2 and 1 to install the replace-ment assembly. When replacing the RF cablesdo not overtighten the SMA connectors. Theyshould be tightened just slightly more than handtight or to the specification of 7 in/lbs.Card Cage ReplacementTo replace the card cage follow the steps listedbelow in sequential order. The required tools are a#1 Phillips screwdriver with an extended shaft toreach down far enough into the unit to loosen themounting screws.Note: Power to the SB II cabinet mustbe turned OFF during the card cagereplacement process.1) Disconnect the display/user interface assembly.2) Disconnect 4 cables at the backplane of thecard cage which are assessable with the dis-play/user interface board out of the way.3) Remove the row of Phillips screws which holdthe card cage to the back plate. There is a rowof screws at the top and bottom of the cage.4) To install a replacement cage perform steps 3through 1 in reverse order.RECOMMENDED SPARESIt is recommended that one spare of each of thefollowing assemblies be kept on hand for emer-gency repair purposes; Power Supply 8-20667,Uplink/Downlink Power Amplifier either 3-20806, 3-20807, 3-20303, or 3-20628 (depending on thespecific model of UHF SB II), Mid Level AmplifierCard 3-19576, Low Level Amplifier Card 3-19935,Low Gain Amplifier Card 3-20294, Attenuator Card3-20208, Power Distribution Card 3-19833, Con-troller Card 3-19832, and the Display/User Inter-face Assembly 3-19831.NOTENOTE
Manual 7-9386-1 Page 24TX RX Systems Inc. 09/30/0461-68-50 UserMan page 24 of 25 Part Number 61-70-50-A2.0-G1 61-71-50-A0.5-G1 61-72-50-A0.5-G1Maximum Gain: +80 dB +80 dB +80 dBGain Adjustment: Programmable attenuation,0-30 dB, 0.5 dB stepsProgrammable attenuation,0-30 dB, 0.5 dB stepsProgrammable attenuation,0-60 dB, 0.5 dB steps3rd Order Output Intercept Point: +50 dBm minimum,with no attenuation+50 dBm minimum,with no attenuation+50 dBm minimum,with no attenuationMax RF Power Output +32 dBm (single carrier) +32 dBm (single carrier) +32 dBm (single carrier)RF Sampler: PA Output sampler ports PA Output sampler ports PA Output sampler portsNoise Figure (without attenuation): 5.0 dB maximum 8.0 dB maximum 8.0 dB maximum,Operating Temperature Range: -30°C to +50° C -30°C to +50° C -30°C to +50° CNominal Impedance: 50 ohms, <1.5:1 VSWR 50 ohms, <1.5:1 VSWR 50 ohms, <1.5:1 VSWRInput/Output Connectors: N female N female N femaleRF Sampler Connectors: BNC female BNC female BNC femaleAC Power Input: 100-240 VAC; 50-60 Hz 100-240 VAC; 50-60 Hz 100-240 VAC; 50-60 HzDC Input Voltage: +24 to +30 VDC +24 to +30 VDC +24 to +30 VDCUnit Power Consumption (AC/DC): <100 VA <100 VA <100 VAHousing: NEMA 4, NEMA 4XRack MountNEMA 4, NEMA 4XRack MountNEMA 4, NEMA 4XRack MountNominal Size: 36" x 30" x 12" 30" x 24" x 12" 30" x 24" x 12”Net Weight: < 100 lbs. < 100 lbs. < 100 lbs.
Manual 7-9386-1 Page 25TX RX Systems Inc. 09/30/0461-68-50 UserMan page 25 of 25CELCIUS FARENHEIT105 221.0104 219.2103 217.4102 215.6101 213.8100 212.099 210.298 208.497 206.696 204.895 203.094 201.293 199.492 197.691 195.890 194.089 192.288 190.487 188.686 186.885 185.084 183.283 181.482 179.681 177.880 176.079 174.278 172.477 170.676 168.875 167.074 165.273 163.472 161.671 159.870 158.069 156.268 154.467 152.666 150.865 149.064 147.263 145.462 143.661 141.860 140.059 138.258 136.457 134.656 132.855 131.054 129.253 127.452 125.651 123.850 122.049 120.248 118.447 116.646 114.845 113.044 111.243 109.442 107.641 105.840 104.039 102.238 100.437 98.636 96.835 95.034 93.233 91.432 89.631 87.830 86.029 84.228 82.4CELCIUS FARENHEIT27 80.626 78.825 77.024 75.223 73.422 71.621 69.820 68.019 66.218 64.417 62.616 60.815 59.014 57.213 55.412 53.611 51.810 50.0948.2846.4744.6642.8541.0439.2337.4235.6133.8032.0-1 30.2-2 28.4-3 26.6-4 24.8-5 23.0-6 21.2-7 19.4-8 17.6-9 15.8-10 14.0-11 12.2CELCIUS FARENHEIT-12 10.4-13 8.6-14 6.8-15 5.0-16 3.2-17 1.4-18 -0.4-19 -2.2-20 -4.0-21 -5.8-22 -7.6-23 -9.4-24 -11.2-25 -13.0-26 -14.8-27 -16.6-28 -18.4-29 -20.2-30 -22.0-31 -23.8-32 -25.6-33 -27.4-34 -29.2-35 -31.0-36 -32.8-37 -34.6-38 -36.4-39 -38.2-40 -40.0-41 -41.8-42 -43.6-43 -45.4-44 -47.2-45 -49.0-46 -50.8-47 -52.6-48 -54.4-49 -56.2-50 -58.0CELCIUS FARENHEITCELSIUS TO FAHRENHEIT CONVERSION TABLE

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