Alcatel Canada 31T28A04A22A Alcatel 7390 LMDS Broadband Wireless System - 31GHz User Manual 3cc12426aaaaTQbja01

Alcatel Canada Inc Alcatel 7390 LMDS Broadband Wireless System - 31GHz 3cc12426aaaaTQbja01

Base Station User Manual 3 0f 14

3CC12426AAAA TQ BJA 01 Issue 01 - April 2001 - Draft 04 81/3461049. Set the DMC crimping tool to position 4 (for 24 AWG wire), and give the positioner a clockwise twistto ensure that it is set properly and will crimp the contact pins on four sides. 10. Place a contact pin on a lead and check that the lead is inserted completely by looking in the hole inthe contact pin; see Figure 51. There should be no more than 1 mm (0.04 in.) of exposed conductorprotruding from the pin.Insert the pin into the DMC tool as far as it can go, and crimp the pin. The DMC tool has a ratchetmechanism that does not release until the pin has been crimped properly.Repeat this step for each lead.Figure 51 – Attaching a contact pin11. Arrange the four pins as indicated in Figure 52, and insert them simultaneously into the insert; thepins enter the side of the insert that has the white marking. The pins must be inserted simultaneouslybecause the conductors are not long enough to be inserted one at a time. Push each pin until it clicksinto position, then confirm that contact is secure by gently pulling on the conductor.The white marking on the insert identifies the pins. The white circle identifies pin 1, and pins 2, 3 and4 follow counterclockwise.Use the removal tool if the pins are in the wrong holes.Figure 52 – Inserting the contact pins12. Put the insert into the insert carrier; see Figure 53. When assembled properly, the tab on the carrier faces towards the pins, the tab on the insert fits inthe cutout in the carrier, and the bevel in the carrier fits on the bevel on the cone washer. The mat-ching bevels pinch the braided shielding when the connector is completely assembled.ContactpinConductorInspectionholeWhitemarkingPin 1Tx+ White (Blue)Pin 4Rx- White (Orange)Pin 2Rx+ OrangePin 3Tx- Blue
82/346 Issue 01 - April 2001 - Draft 04 3CC12426AAAA TQ BJA 01104Figure 53 – .Putting the insert into the insert carrier13. Put the insert carrier into the connector body; see Figure 54. The red dot on the outer shell aligns with the tab on the insert carrier. You should feel a slight clickwhen the carrier locks into place. It may be necessary to gently push the cable while carefully rotatingthe connector body until the click is felt. Figure 54 – Inserting the insert carrier into the outer shell14. Tighten the connector by turning the collet nut to 6.9 Nm (5 ft-lb) of torque; see Figure 55. Do notrotate the connector body. Figure 55 – Tightening the connector15. Push the bend relief on to the collet nut.InsertcarrierBevelCutout in carrierPins Tab oninsertTab oncarrierInsertTab on insert carrierRed dotDo not turn
3CC12426AAAA TQ BJA 01 Issue 01 - April 2001 - Draft 04 83/3461042.9 – Installing an L4PNM Heliax connector2.9.1 – OverviewThe following parts are required:– Heliax LDF4 cable.– Heliax L4PNM connector (solder-connect or ring-flare variant).All tools and hardware required for this procedure except wrenches and soldering tools should beordered from Heliax. See Appendix A for details.2.9.2 – To add a solder-connect L4PNM connector1. Strip 51 mm (2 in.) or more of the cable jacket from the IF cable, ending at the lowest point of a valleybetween two corrugations, as shown in Figure 56. Figure 56 – Removing the insulation2. Install the O-ring on the first corrugation valley as shown in Figure 57.Figure 57 – Installing the small O-ringNote - Newbridge Broadband Wireless equipment should only be installed by qualifiedindividuals who are trained and certified for the type of installation task assigned to them.Note - This step can be done more accurately and quickly if Heliax cable tool 207886 is usedto score the cable jacket and cut the outer conductor.51 mm (2 in.) or greaterOuterconductorLowest pointbetween corrugationsO-ringCablejacket
84/346 Issue 01 - April 2001 - Draft 04 3CC12426AAAA TQ BJA 011043. Use a small grease brush to lubricate the O-ring with the silicone grease shipped with the connector.4. Install the clamping nut on the cable by sliding it over the cable end until it is stopped by the O-ring.The fingers of the clamping nut should stop exactly half-way through a corrugation peak, as shownin Figure 58.Figure 58 – Installing the clamping nut5. Remove the portion of outer conductor that is not covered by the clamping nut.1. Use a fine-tooth saw to cut through the outer conductor flush with the clamping nut fingers. Donot cut deeper than the outer conductor, and make sure that the cut is made along the entirecircumference where the clamping nut fingers meet the outer conductor; see Figure 59.Figure 59 – Cutting the outer conductor2. Grasp the outer conductor with pliers, and carefully pull it off. When removed, the foam dielectricis exposed, as seen in Figure 60.Figure 60 – Foam dielectricNote - Substep i is unnecessary if Heliax cable tool 207886 was used in step 1 to score thecable jacket, and cut the outer conductor. If the Heliax cable tool was used, proceed tosubstep 2.Clamping nutFoam dielectric
3CC12426AAAA TQ BJA 01 Issue 01 - April 2001 - Draft 04 85/3461046. Remove the foam dielectric from the inner conductor. 1. Use a knife to cut the foam dielectric flush with the outer conductor, to the depth of the innerconductor, then cut along the length of the inner conductor several times until all the foamdielectric is removed from the inner conductor; see Figure 61.Figure 61 – Removing the foam dielectric2. Use a knife to carefully scrape any remaining dielectric foam adhesive from the inner conductor.Be careful not to damage the inner conductor.7. Trim the inner conductor.1. Use a fine-tooth saw to trim the inner conductor to 5 mm (7/32 in.) from the outer conductor andclamping nut fingers, as shown in Figure 62.2. Use a small file to remove any burrs on the end of the inner conductor.3. Use a clean wire brush to remove any debris from the foam dielectric.
86/346 Issue 01 - April 2001 - Draft 04 3CC12426AAAA TQ BJA 01104Figure 62 – Trimming the inner conductor8. Use a knife to compress the foam dielectric away from the outer conductor as shown in Figure 63.Figure 63 – Compressing the foam dielectric9. Flare the outer conductor:1. Use a flaring tool to flare the outer conductor, as shown in Figure 64. The flared outer conductorshould not extend past the clamping nut fingers.2. Use a small file to remove any burrs or irregularities on the end of the inner conductor.3. Use a clean wire brush to remove any debris from the foam dielectric.5 mm(7/32 in.)CompressedfoamBefore foam compressionUncompressedfoamAfter foam compressionOuter conductorFoam dielectric2 mm(3/32 in.)
3CC12426AAAA TQ BJA 01 Issue 01 - April 2001 - Draft 04 87/346104Figure 64 – Flaring the outer conductor10. Solder the pin to the inner conductor:1. Cut 1 mm (0.040 in.) diameter solder to a length equal to the depth of the pin cup, roll the lengthinto a ball, and insert it into the pin cup. When the pin cup is heated by the soldering iron, thissolder will melt and provide a even solder bond on the inside of the pin cup.2. Use the heat shield, soldering pliers and soldering iron to solder the pin to the inner conductor,as shown in Figure 65. Apply extra solder to the holes in the pin cup if required.3. Remove excess solder from the solder holes using wire cutters and/or emery paper. Flaring toolBefore flaring After flaring
88/346 Issue 01 - April 2001 - Draft 04 3CC12426AAAA TQ BJA 01104Figure 65 – Soldering the pin11. Verify that the pin is installed at a 90° angle with respect to the clamping nut, as shown in Figure 66.If the pin is not straight, and cannot be corrected, remove it, and start the procedure again.Figure 66 – Checking the pin12. Add the large O-ring to the clamping nut, as shown in Figure 67.Pin cupDeburred innerconductorSolderholeSolderbeadSolderingpliersHeatshield90°
3CC12426AAAA TQ BJA 01 Issue 01 - April 2001 - Draft 04 89/346104Figure 67 – Adding the large O-ring13. Use a small grease brush to lubricate the O-ring with the silicone grease included with the connector.14. Add the outer connector body to the clamping nut and pin. Hold the clamping nut stationary with onewrench, and thread the connector body onto the clamping nut with another wrench; see Figure 68.Do not turn the clamping nut, only turn the connector body. Tighten to 1.9 to 2.4 Nm (16.8 to 20.8 in.-lb) of torque.Figure 68 – Assembling the connector2.9.3 – To add a ring-flare L4PNM connector1. Strip 51 mm (2 in.) or more of the cable jacket from the IF cable, ending at the lowest point of a valleybetween two corrugations, as shown in Figure 69. Note - This step can be done more accurately and quickly if Heliax cable tool 207886 is usedto score the cable jacket and cut the outer conductor.O-ring Stationary wrench
90/346 Issue 01 - April 2001 - Draft 04 3CC12426AAAA TQ BJA 01104Figure 69 – Removing the cable jacket2. Install the O-ring on the first corrugation valley as shown in Figure 70.Figure 70 – Installing the small O-ring3. Use the small brush to lubricate the O-ring with the silicone grease included with the connector.4. Install the connector body on the cable by sliding it over the cable end until it is stopped by the O-ring, as shown in Figure 71. Install the spring ring on the first corrugation valley after the cable body,as shown in Figure 71.Figure 71 – Installing the connector body and spring ring5. Slip the outer conductor cutting guide over the cable and onto the spring ring, as shown in Figure 72.51 mm (2 in.) or greaterOuterconductorLowest pointbetween corrugationsCablejacketO-ringConnector body Spring ring
3CC12426AAAA TQ BJA 01 Issue 01 - April 2001 - Draft 04 91/346104Figure 72 – Adding the cutting guide6. Remove the outer conductor: 1. Use a fine-tooth saw to cut through the outer conductor flush with the cutting guide. Do not cutdeeper than the outer conductor, and make sure that the cut is made along the entirecircumference where the cutting guide meets the outer conductor corrugation peak; see Figure73. Remove the cutting guide when the cut is complete.2. Grasp the outer conductor with pliers and carefully pull it off, exposing the foam dielectric, asshown in Figure 74.Figure 73 – Cutting the outer conductorFigure 74 – Foam dielectricNote - Substep 2 is unnecessary if Heliax cable tool 207886 was used in step 1 to score thecable jacket, and cut the outer conductor. If the Heliax cable tool was used, proceed tosubstep 2.Cutting guideFoam dielectric
92/346 Issue 01 - April 2001 - Draft 04 3CC12426AAAA TQ BJA 011047. Remove the foam dielectric from the inner conductor: 1. Use a knife to cut the foam dielectric flush with the outer conductor, to the depth of the innerconductor, then cut along the length of the inner conductor several times, until all the foamdielectric is removed; see Figure 75.2. Use a knife to carefully scrape any remaining dielectric foam adhesive from the inner conductor.Be careful not to damage the copper coating on the inner conductor.Figure 75 – Removing the foam dielectric8. Trim the inner conductor:1. Add the inner conductor cutting guide, as shown in Figure 76.2. Use a fine-tooth saw to trim the inner conductor flush with the cutting guide, as shown in Figure77.3. File the outer conductor to the specifications shown in Figure 77.4. Use a clean wire brush to remove any debris from the foam dielectric.Figure 76 – Adding the inner conductor cutting guideCuttingguideInnerconductor
3CC12426AAAA TQ BJA 01 Issue 01 - April 2001 - Draft 04 93/346104Figure 77 – Trimming the inner conductor9. Use a knife to compress the foam dielectric away from the outer conductor as shown in Figure 78.6-8 mm(1/4’’-5/16’’)1 mm(1/32’’)
94/346 Issue 01 - April 2001 - Draft 04 3CC12426AAAA TQ BJA 01104Figure 78 – Compressing the foam dielectric10. Flare the outer conductor:1. Use a flaring tool to flare the outer conductor, as shown in Figure 79.2. Examine the flare, and use the small file to remove any burrs or irregularities from the flared outerconductor.3. Use a clean wire brush to remove any debris from the foam dielectric.Figure 79 – Flaring the outer conductor11. Add the large O-ring to the end of the connector, as shown in Figure 80. CompressedfoamUncompressedfoamBefore foam compressionAfter foam compressionOuter conductorFoam dielectric2 mm(3/32 in.) Flaring toolBefore flaring After flaring
3CC12426AAAA TQ BJA 01 Issue 01 - April 2001 - Draft 04 95/346104Figure 80 – Adding the large O-ring12. Use the small grease brush to lubricate the O-ring with the silicone grease shipped with theconnector.13. Add the end of the connector to the connector body. Hold the end of the connector stationary withone wrench, and thread the connector body onto the connector end by turning it with another wrench;see Figure 81. Do not turn the connector end, only turn the connector body. Tighten to 1.9 to 2.4 Nm(16.8 to 20.8 in.-lb) of torque.Figure 81 – Assembling the connector2.10– BT system loss calibration2.10.1– OverviewThis chapter demonstrates how to measure and calibrate the system according to the required upstreamand downstream losses.In both upstream and downstream loss calculations, losses due to connectors and connections, cableruns, and passive devices, such as the Bias-T or 12:2 Combiner/Splitter, are part of the measured loss.O-ringStationary wrench
96/346 Issue 01 - April 2001 - Draft 04 3CC12426AAAA TQ BJA 01104The downstream path loss is measured from the IBS-TLX card Tx SMA cable to the end of the IF cablethat connects to the X-Pol RBS Tx. The upstream path is measured from the IBS-TLX card Rx SMAcable to the end of the IF cable that connects to the X-Pol RBS Rx. If the measured upstream ordownstream loss is less than the value required, an attenuator is installed between the 12:2 Combiner/Splitter and the Bias-T.Table 27 lists the equipment required to calibrate the upstream and downstream IF cable losses.Figure 82 shows the equipment setup used to measure upstream or downstream cable loss.Measurements should be made at the lowest and highest frequencies of the upstream and downstreamIF bands for your system. The average of the pair of measurements is used to determine the nominalamount of attenuation needed in the upstream and downstream paths.Table 27: Test equipment required for BS IF system loss calibrationFigure 82 – BS IF cable calibration equipment setup2.10.2– To calibrating the upstream and downstream cable runsPerform the following procedure for the downstream and upstream cable runs.1. Ensure the dc power to the surge protector is disconnected.2. Disconnect the dc power cables from the Bias-Ts.3. Disconnect the SMA cables from the IBS card.4. Disconnect the IF cables from the X-Pol RBS Tx and X-Pol RBS Rx.Equipment SupplierSignal generator capable of generating a sine wave at 2050 MHz Hewlett Packard: Model ESG-4000A50 W power meter Hewlett Packard: Model E4419AIf dc power is not disconnected from the IF cables, the test equipment will be damaged. Toremove dc power, switch off the appropriate circuit breaker on the power distribution systemto isolate the individual IF channel.
3CC12426AAAA TQ BJA 01 Issue 01 - April 2001 - Draft 04 97/3461045. Measure the losses at the lowest and highest frequencies in the frequency band used by the system.1. Set the signal generator frequency to the Llow frequency and the RF output power level to0dBm.2. Connect the signal generator to the appropriate SMA cable (IBS-TLX). Connect the power meterto the X-Pol RBS Tx/X-Pol RBS Rx IF cable. Figure 82 shows the test setup.3. Measure the RF power level with the power meter. Record this value as the upstream ordownstream Llow value.4. Repeat this step at the Lhi frequency.6. Use the equation below to calculate the mean attenuation. Record the result as the downstream orupstream LA nom value.LA nom= ((Llow + Lhi)/2)whereLA nom represents the required attenuation value (nominal)Llow represents the loss measurement at the lowest frequencyLhi represents the loss measurement at the highest frequencyLR represents the required loss value (27 dB ±1 dB for the downstream path, 24 ±1 dB for the ups-tream path)7. Enter in 7390LT radiolink intallation screen recorded attenuation value for downstream andupstream cables.8. Reconnect the SMA and IF cables.9. Reconnect the Bias-T power cables.10. Reapply the dc power.
98/346 Issue 01 - April 2001 - Draft 04 3CC12426AAAA TQ BJA 011042.11– Simplified description of the Base Station (7390BS)The A7390 system Base Station (7390BS) consists of the following main elements:– one or more (up to eight) external transceivers, comprising the radio and the antenna part anddesignated "X-Pol RBS" (Radio Base Station);– one modem rack, including the power supply unit and interfaces; this is the "indoor" part and de-signated DBS (Digital Base Station);–a cables linking the X-Pol RBS and the DBS ("X-Pol RBS/DBS link");– a network management and configuration station (7390LT), based on the use of a PC with appro-priate software.Click on the arrow to select the bandwidth: 14/4 Us*3.5,28/4 Us*7 MHz (by default: not configured)No. of the AMD board associated with the sectorClick here to cancel the modificationsClick here to activate the upstream. Click here to return to the BS details screenClick here to enter the central trequencies of the upstream (reception) and downstream (emission) channels (see radio scheduler)Click here to apply the modificationsEncryption activation: No
3CC12426AAAA TQ BJA 01 Issue 01 - April 2001 - Draft 04 99/3461042.12– Technical specifications of the Base Station (7390BS)2.12.1– X-Pol RBS specificationsDesignation Description Standards ObservationsMechanical specifications of the X-Pol RBS assembly (antenna + pole mounting)HxLxD 644(mm)x221(mm)x720(mm) D taken from axial tube 11,43 to 7,3cm(4 1/2 into 2 1/2 in)Weight 15 kg -Physical interfaces: X-Pol RBS/DBS indoor-outdoor cableConnector type N/female weatherproofMedium 50W coaxial cable -Environmental specificationsX-Pol RBS Classi-fication -equipment for premi-ses not sheltered from the weatherOperatingtemperature -33°C to + 55°C -Relative humidity at 30°C 100% -
100/346 Issue 01 - April 2001 - Draft 04 3CC12426AAAA TQ BJA 011042.12.2– DBS specificationsNote: Power supplies are floating level voltages; the ground cable can be connected to + 48V or - 48Vaccording to the country standards.Designation Description Standards ObservationsMechanical specifications: Rack-mounted DBS assembly standard 19"HxLxD 1250(mm)x600(mm)x600(mm) cf. diagram in§ 3 InstallationWeight <135 kg (including 85 kg for empty rack) -Mechanical specifications: DBS shelf without rackHxLxD 844.55(mm)x482.6(mm)x540(mm) 19-inch cf. diagram in § 3 InstallationWeight < 50 kg -Power supply and consumptionPrimary voltage range 36 V to 60 V 48 V rated voltageMaximum con-sumption 750W including 8 X-Pol RBSProtection overvoltage, short-circuit(40 A fuse), polarity inversion, thermal protection(ventilation failure)-

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