Powerwave Technologies 922801 Tower Top Power Apmilfier/Booster User Manual manual

Powerwave Technologies Inc. Tower Top Power Apmilfier/Booster manual

manual

ALLGON SYSTEM AB - Proprietary Technical Specification for PCS Tower Top Power Amplifier [Allgon 9256]Preliminary - Subjected to change without notice Rev.pA0File: 93651 Page 1 (19) 29 Mar 00TOWER TOP POWER AMPLIFIERPCS 1900MHZ / 20WSTANDALONETECHNICAL SPECIFICATION
ALLGON SYSTEM AB - Proprietary Technical Specification for PCS Tower Top Power Amplifier [Allgon 9256]Preliminary - Subjected to change without notice Rev.pA0File: 93651 Page 2 (19) 29 Mar 001 INTRODUCTION..........................................................................................................................................31.1 PURPOSE ...............................................................................................................................................31.2 SCOPE...................................................................................................................................................31.3 REVISION HISTORY....................................................................................................................................31.4 RELATED DOCUMENTS .............................................................................................................................31.5 ABBREVIATIONS .......................................................................................................................................31.6 DEFINITIONS ............................................................................................................................................32 PRODUCT VARIANT DEFINITION ................................................................................................................52.1 DEFINITION OF THE AVAILABLE VARIANTS.......................................................................................................52.2 OPTIONAL FUNCTION SELECTION GUIDE ........................................................................................................53 SYSTEM OVERVIEW...................................................................................................................................63.1 GENERAL ...............................................................................................................................................63.2 PRINCIPLE OF OPERATION.........................................................................................................................74 ELECTRICAL SPECIFICATION...................................................................................................................104.1 ABSOLUTE MAXIMUM RATINGS..................................................................................................................104.2 GENERAL PARAMETERS.......................................................................................................................... 104.3 TRANSMIT PATH PARAMETERS.................................................................................................................. 114.4 RECEIVE PATH PARAMETERS...................................................................................................................134.5 FILTER PARAMETERS.............................................................................................................................. 144.6 POWER SUPPLY PARAMETERS ................................................................................................................. 145 MECHANICAL SPECIFICATION..................................................................................................................155.1 PHYSICAL PARAMETERS..........................................................................................................................155.2 INTERFACES .........................................................................................................................................155.3 MOUNTING ............................................................................................................................................166 ENVIRONMENTAL SPECIFICATION...........................................................................................................176.1 OPERATING CONDITIONS.......................................................................................................................... 176.2 STORAGE AND TRANSPORTATION ..............................................................................................................176.3 ELECTROMAGNETIC COMPATIBILITY (EMC) ................................................................................................. 186.4 LIGHTNING PROTECTION........................................................................................................................... 187 RELIABILTIY SPECIFICATION ................................................................................................................... 187.1 OPERATING LIFE .................................................................................................................................... 187.2 THEORETICAL MTBF..............................................................................................................................187.3 FIELD PROVEN MTBF ............................................................................................................................198 SAFETY SPECIFICATION ..........................................................................................................................198.1 TOXIC MATERIALS.................................................................................................................................. 198.2 SAFETY CLASSIFICATIONS........................................................................................................................199 SERVICE AND MAINTENANCE ..................................................................................................................199.1 SERVICE ..............................................................................................................................................199.2 MAINTENANCE.......................................................................................................................................19
ALLGON SYSTEM AB - Proprietary Technical Specification for PCS Tower Top Power Amplifier [Allgon 9256]Preliminary - Subjected to change without notice Rev.pA0File: 93651 Page 3 (19) 29 Mar 001 INTRODUCTION1.1 PURPOSEThis document describes the Technical specification for the Allgon Tower Top Power Amplifier for the PCS1900 cellular band. The product number specified in the header has different variants available. Thesevariants have different bandwidths, gain and options. A definition of the different available variants and aselection guide can be found in chapter 2.1.2 SCOPEThe document details the total Technical performance of the TTPA, with respect to Electrical,Mechanical, Environmental, Safety and Reliability related parameters. Only the mast head mounted unitis described in this document. Other related products, such as APDU and Current Injectors, aredescribed in other documents.1.3 REVISION HISTORYRev. pA0 Draft 990518 M.ÖsterbergRev. Second draft1.4 RELATED DOCUMENTSTIA, PS No 3389Technical Specification for APDU 9209Technical Specification for CI 92191.5 ABBREVIATIONSTTPA Tower Top Power AmplifierPDU Power Distribution UnitAPDU Alarm And Power Distribution UnitCI Current InjectorPCN Personal Cellular NetworkAGC Automatic Gain ControlANT AntennaBTS Base Transceiver StationLED Light Emitting DiodeMTBF Mean Time Between FailuresMTTR Mean Time To ReplacePA Power Amplifier1.6 DEFINITIONS! Normal operating conditions:The full operating performance specified in this document is guaranteed under conditions stated below:Ambient temperature: Acc. to chapter 7 , after 30 min normal operation.Environment: Acc. to chapter 7 , after 30 min normal operation.DC power supply: Acc. to chapter 4.Return loss: > 18dB on all RF ports.
ALLGON SYSTEM AB - Proprietary Technical Specification for PCS Tower Top Power Amplifier [Allgon 9256]Preliminary - Subjected to change without notice Rev.pA0File: 93651 Page 4 (19) 29 Mar 00Mounting: Acc. to chapter 5.3The parameters specified are guaranteed over the warranty time.! Typical parameters:All typical parameters are considered to be measured at an ambient temperature of 20 °C, and airpressure of 1013 mbar, after 30 min warm up, unless otherwise stated. The TTPA is designed for anoperating life exceeding 10 years.
ALLGON SYSTEM AB - Proprietary Technical Specification for PCS Tower Top Power Amplifier [Allgon 9256]Preliminary - Subjected to change without notice Rev.pA0File: 93651 Page 5 (19) 29 Mar 002 PRODUCT VARIANT DEFINITIONThe TTPA are available with different frequency bands, together covering all PCS bands. A number ofoptional functions (listed in 2.2) are available depending on configuration. The existing, and preferredproduct configurations, are listen in 2.1.2.1 DEFINITION OF THE AVAILABLE VARIANTS Variant Band / width RX Freq.band TX Freq.band TX Gain Options 9228.01 A+D / 20 MHz 1850-1870 MHz 1930-1950 MHz 7 dB 1,4,6 9228.02 B+E / 20 MHz 1870-1890 MHz 1950-1970 MHz 7 dB 1,4,6 9228.03* C+F / 20 MHz 1890-1910 MHz 1970-1990 MHz 7 dB 1,4,6 *Future Product2.2 OPTIONAL FUNCTION SELECTION GUIDE Option See Section Included in variant # 1. Fixed RX Gain 13dB 3.6.2 01,02,03 2. Separate DC connector 4.2.4 3. Separate Alarm connector 4.2.5 01,02,03 4. Redundant DC/DC 3.8.4 5. Antenna supervision 3.4.4 6. RX bypass 3.6.6 7. TX bypass 3.5.11 01,02,03
ALLGON SYSTEM AB - Proprietary Technical Specification for PCS Tower Top Power Amplifier [Allgon 9256]Preliminary - Subjected to change without notice Rev.pA0File: 93651 Page 6 (19) 29 Mar 003 SYSTEM OVERVIEW3.1 GENERAL The PCS Tower Top Power Amplifier (TTPA) is intended for use at sites where it is necessary to improvethe coverage area. The TTPA boosts both the receive-path signal and the transmit power from one TRx inorder to preserve site link balance. TX and RX signal paths are separated by means of duplexers. The TXPower Amplifier (PA), as well as the RX Low Noise Amplifier (LNA), utilizes balanced architectures to addredundancy. The TTPA can also be used together with a micro or mini BTS to reach coverage equivalent with a farmore expensive Macro BTS installation. The TTPA has a small and lightweight design, which enables it to be mounted in the antenna tower, nearthe antenna. This means that less costly feeders can be used since the attenuation becomes of lessconcern when the PA and the LNA is situated near the antenna. DC power to the TTPA is supplied , via theantenna feeder. The TTPA incorporates an advanced self-supervision system that automatically switchesthe unit into bypass mode in the event of malfunction or power failure. RXRX/TX RX/TXMHBMHBBTSTTARX/TXRXRXRX/TX Figure 1. Typical site configuration with Tower Top Amplifiers. KEY PARAMETERS TX Gain: 7 dB TX Power: +43 dBm (20W) RX Gain: 13dB
ALLGON SYSTEM AB - Proprietary Technical Specification for PCS Tower Top Power Amplifier [Allgon 9256]Preliminary - Subjected to change without notice Rev.pA0File: 93651 Page 7 (19) 29 Mar 003.2 PRINCIPLE OF OPERATION3.2.1 GeneralThe TTPA has the RX and the TX signal paths separated by means of duplex filter or isolators. All circuitry for power supply and supervision are included inside the unit.The TTPA has two ports designated BTS and ANT. The BTS port carries the signals to/from theBTS rack (e.g. TX-in, RX-out, DC-power). The ANT port will be connected to the antenna. Seefigure 2 Basic TTPA Block Diagram. 3.2.2 Transmit Path The Transmit path incorporates a balanced power amplifier with high linearity. An AutomaticGain Control circuit (AGC) keeps the gain at a constant level from input to ANT output. TX-pathBypass is optional.3.2.3 Receive Path The Receive path consists of a balanced LNA with very low noise factor. The LNA has a gainchange capability in order to compensate for different feeder losses and optimize the link budgeton each site. RX bypass, which will cut in at power failure or LNA failure, is an optional function.3.2.4 Power Supply The Power Supply filters and regulates the input DC power to suit the amplifiers. DC power fedinto the unit on the BTS input connector through the feeder is standard. Separate DC connectorand redundant DC/DC is optional. Figure 2. Block diagram of the Tower Top Power Amplifier.EXT.DCop ti onCI&LPdBIn pu t Pow erBTS portDC /D C 26V26 VdB dBANT portForwardPowerRe ve r sePowerTX by p assdBRX byp assSYSTEMCONT ROLLEEXT:ALARMop ti on
ALLGON SYSTEM AB - Proprietary Technical Specification for PCS Tower Top Power Amplifier [Allgon 9256]Preliminary - Subjected to change without notice Rev.pA0File: 93651 Page 8 (19) 29 Mar 003.2.5 Supervision A number of parameters are constantly supervised. TX Power Amplifier: Output power, VSWR (when input power within specified limits), transistor currents, voltages,temperature and power supply. VSWR supervision optional. RX LNA: Transistor currents and power supply. Control unit: The system controller at startup and at certain intervals makes a system self-test.3.2.6 AlarmingThe TTPA has an alarm connector with two independent relay contacts and an auxillary input.The Relays are assigned to different alarms depending on whether it is a Major or Minor alarm(Relay 1=Major, Relay 2=Minor).This facilitates differentiation of minor alarms (not interrupting transmission) from major alarmsthat indicates loss of transmission. All alarms can be gated to one by simply connecting thecontacts in parallel. ALARM Cause Action in TTPA Relay # Overtemp Cooling flange above 80°C** RX_bypass****/TX Bypass**** 1 DC-Minor One DC/DC-converter failed none 2 DC-Major**** No DC power to TTPA * TX Bypass 1 TX-Minor One PA Transistor failed None 2 TX-Major PA Failure, No Gain PA shutdown & TX Bypass 1 RX-Minor One LNA Transistor failed None 2 RX-Major LNA Failure none 1 VSWR Alarm**** VSWR > 2.5:1*** none 2 OP-Alarm Output Power over Limit none 2 IP-Alarm Input Power over Limit none 2 RP-Alarm**** Reflected Power over Limit none 2 AGC-Alarm Gain control failed Gain accuracy reduced 2 AUX-Alarm**** Auxillary input shorted none1 2 TTA_Minor**** Diversity TTA minor failure none 2 TTA_Major**** Diversity TTA major failure none 2 SYS_Minor CPU System test failed none 2 SYS_Major CPU System test failed TX Bypass**** 1* Either due to failure of both DC/DC converters, or no DC power applied to the unit.** restart at +60°C*** Default value. Software changeable level 2:1 to 5:1 is optional
ALLGON SYSTEM AB - Proprietary Technical Specification for PCS Tower Top Power Amplifier [Allgon 9256]Preliminary - Subjected to change without notice Rev.pA0File: 93651 Page 9 (19) 29 Mar 00**** Optional function, not supported in all variant.
ALLGON SYSTEM AB - Proprietary Technical Specification for PCS Tower Top Power Amplifier [Allgon 9256]Preliminary - Subjected to change without notice Rev.pA0File: 93651 Page 10 (19) 29 Mar 00ELECTRICAL SPECIFICATION3.3 ABSOLUTE MAXIMUM RATINGS The Absolute Maximum Rating is defined as the value of applied signal/power etc. that is guaranteed notto damage the unit permanently. This applies over the full operating temperature range of the unit. Parameter MAX MIN Unit 3.1.1 Input DC Voltage (low imp. Source) - -70 V 3.1.2 Reverse Input DC Voltage 75 - V 3.1.3 Input Power on BTS port (TX-band) 40 - dBm 3.1.4 Input Power on ANT port (TX-band) 43 - dBm 3.1.5 Input Power on BTS port (RX-band) 20 - dBm 3.1.6 Input Power on ANT port (RX-band) 20 - dBm 3.1.7 Input Power on ANT port (other bands) 43 - dBm 3.1.8 Input Power on BTS port (other bands) 40 - dBm3.4 GENERAL PARAMETERS 3.4.1 Nominal Impedance Nominal impedance of all ports: 50Ω3.4.2 Return Loss Measured over the tuned Rx and Tx band. Normal operation: Bypass: BTS port: > 18 dB BTS port > 12 dB ANT port: > 18 dB Ant port: > 12 dB3.4.3 Power Consumption Max: 130W (2.5A @48V) Primary Fuse: 4 A Slow3.4.4 Antenna Supervision (VSWR) (option 5) This optionally feature monitors the Forward and Reflected power at the ANT port. If calculatedVSWR exceeds the VSWR LIMIT, a VSWR-alarm is issued. The VSWR value below is thedefault value and is optionally software changeable from 2:1 to 5:1. VSWR Return Loss VSWR LIMIT: 2.5:1 ~7.4 dB The VSWR-alarm is active down to an average output signal power > 20 dBm.3.4.5 Reflected Output Power Supervision If the reflected power from the antenna exceeds +38 dBm, the reflected power supervisionfunction will decrease the TX gain in order to limit the reflected power to a level less than+38dBm. An RP_Alarm alarm will be issued in this condition .
ALLGON SYSTEM AB - Proprietary Technical Specification for PCS Tower Top Power Amplifier [Allgon 9256]Preliminary - Subjected to change without notice Rev.pA0File: 93651 Page 11 (19) 29 Mar 003.4.6 Total Feeder DC Resistance and Maximum Feeder Length Maximum length: 250 m (833 ft) Maximum feeder DC resistance: 2Ω Measured between the inner and outer connector with the other feeder end short circuited. **Note: Only valid when using feeder cable for DC-feed. 3.4.7 Intermodulation Distorsion The measurements are made on both ports with the TTPA operating at its nominal rated outputpower and with:Two interfering signals in the PCS-RX band at a power level of -40 dBm at ANT port.One interfering signals in the PCS-TX band at a power level of +13 dBm at ANT port.Maximum IMD level: Band ANT port BTS port Meas BW RX -128 dBm -114 dBm 100 kHz TX -70 dBc -70 dBc 100 kHz3.5 TRANSMIT PATH PARAMETERS3.5.1 TX Operating Frequency-See section 2.13.5.2 TX Nominal Output PowerMeasured at the ANT port, within the tuned TX band.Min: +43 dBm (20W)3.5.3 TX Overload Supervision When the average Output Power exceeds 43 dBm with: > 1.0 dB an TX-OP Minor Alarm (TX Over Power) alarm is issued> 2.0 dB the TX power is soft limited by the AGC circuitry not to exceed this value.and a TX-OP Major Alarm is issued.3.5.4 TX Two Tone LinearityMeasured with two CW signals of 37dBm each (43dBm Peak Power) out from the unit in TXband, giving 40dBm total average output power. Max 1MHz spacing between tones.Level of IM-tones Max: -30dBc3.5.5 TX Nominal GainNominal Gain is defined as [MaxGain(inband) + MinGain(inband)] / 2 7dB
ALLGON SYSTEM AB - Proprietary Technical Specification for PCS Tower Top Power Amplifier [Allgon 9256]Preliminary - Subjected to change without notice Rev.pA0File: 93651 Page 12 (19) 29 Mar 003.5.6 TX Gain ToleranceMeasured with AGC in operation.Nominal gain ± 0.5 dB3.5.7 TX Gain RippleRipple is defined as [MaxGain(inband) - MinGain(inband)]Max: 1 dB3.5.8 TX AGC OperationThe AGC system continuously holds the TX-gain at nominal value.If the system fails to regulate the power a PA-fail alarm is generated.The AGC time constant is chosen to compensate for thermal and other long term drift.Minimum average input power level for AGC operation: +20 dBm.TX gain tolerance with AGC not operating: ±1.5dB.3.5.9 TX StabilityThe TX-amplifier is unconditionally stable for all passive loads at input and output.3.5.10 TX Spurious Emissions and Broadband NoiseMeasured at ANT port, with the TTPA operating at nominal output power.Peak power and measurement bandwidth as listed in table.Outside TX band:Frequency band Max peak power / BandwidthRX band - 128 dBm / 100 kHz1850-1910 MHz - 98 dBm / 100 kHz824 - 849 MHz - 98 dBm / 100 kHz100 kHz - 50 MHz - 36 dBm / 10 kHz 50-1000 MHz - 36 dBm / 100 kHz1 – 12.75 GHz, outside TX band >+ 2 MHz - 30 dBm / 30 kHz “ >+ 5 MHz - 30 dBm / 100 kHz “ >+ 10MHz - 30 dBm / 300 kHz “ >+ 20MHz - 30 dBm / 1 MHz “ >+ 30MHz - 30 dBm / 3 MHzInside TX band:Frequency band Max peak power / Bandwidth Carrier offset > + 1.8 MHz - 36 dBm / 30 kHzCarrier offset > + 6 MHz - 36 dBm / 100 kHz
ALLGON SYSTEM AB - Proprietary Technical Specification for PCS Tower Top Power Amplifier [Allgon 9256]Preliminary - Subjected to change without notice Rev.pA0File: 93651 Page 13 (19) 29 Mar 003.5.11 TX Bypass Loss (option 7)TX bypass function is optional.Measured from ANT to BTS portTyp. 2.0 dBMax: 2.6 dB 3.5.12 TX Redundancy & Bypass OperationIn the event of failure of one of the transistors in the power amplifier the gain will drop byapprox. 6dB. In this condition a TX-minor alarm will be generated. If both transistors fail and theTX Bypass option is installed, the TX-path will be switched to bypass mode and a TX-majoralarm will be issued. Bypass mode will automatically be initiated if DC power to the PA fails.3.6 RECEIVE PATH PARAMETERS3.6.1 RX Operating Frequency-See section 2.13.6.2 RX GainNominal Gain is defined as [MaxGain(inband) + MinGain(inband)] / 213 dBOptionally reduced in 1 dB steps from 13 to 7 dB.3.6.3 RX Gain Tolerance±0.6 dB3.6.4 RX Gain RippleRipple is defined as [MaxGain(inband) - MinGain(inband)]±0.5 dB3.6.5 RX Noise FigureMeasured at Nominal RX gain.Typ: 1.9 dBMax: 2.9 dB3.6.6 RX Bypass Loss ( option 6 )RX bypass function is optional.Measured from ANT to BTS portTyp. 2.2 dBMax 2.9 dB3.6.7 RX Input Intercept Point IIP3Min: +6dBm
ALLGON SYSTEM AB - Proprietary Technical Specification for PCS Tower Top Power Amplifier [Allgon 9256]Preliminary - Subjected to change without notice Rev.pA0File: 93651 Page 14 (19) 29 Mar 003.6.8 RX StabilityThe RX-amplifier is unconditionally stable for all loads at input and output of the TTPA.3.6.9 RX RedundancyIn the event of failure of one of the transistors in the balanced LNA the gain will drop by approx.6dB. An RX-minor alarm will be generated. If both transistors fail, an RX-major alarm will begenerated.3.7 FILTER PARAMETERSRx and Tx bands according to paragraph 2.1Isolation ANT to LNA inputDC – 1000 90 dB1000 – {35 MHz below Rx Band} 30 dB1910 – 1990 50 dBTx Band (20 MHz wide) 85 dB1990 – 5970 40 dB5970 – 12750 20 dB3.8 POWER SUPPLY PARAMETERS3.8.1 Supply Voltage - 48 Volts DC3.8.2 Supply Voltage Tolerance Measured at BTS port. Max: -60V Min: -40 V3.8.3 Supply Voltage Noise Tolerance! Ripple and noise 10Hz to 100 MHz: 100 mVp-p! Wideband noise 4kHz to 20 MHz, any 3kHz band: 1V p-p3.8.4 DC/DC Redundancy (option 4) The power supply consists of two DC/DC converters in parallel, sharing the current. In the caseoff one converter failing, the remaining converter will power the unit to full operation. An alarm(DC-minor) will be signaled to the PDU. If both DC/DC converters fails, or no power is applied tothe unit, the APDU detects this automatically and raises an alarm.3.8.5 DC Input Protection! Reverse Voltage Protection ! Over voltage Protection ( see lightning spec.)! Over current protection
ALLGON SYSTEM AB - Proprietary Technical Specification for PCS Tower Top Power Amplifier [Allgon 9256]Preliminary - Subjected to change without notice Rev.pA0File: 93651 Page 15 (19) 29 Mar 003.8.6 Inrush CurrentMeasured at power on with nominal supply voltage.Max peak: 15AMax after 10ms: 3A4 MECHANICAL SPECIFICATION4.1 PHYSICAL PARAMETERS4.1.1 Height350 mm (±20mm)4.1.2 Width220 mm (±20mm)4.1.3 Depth230 mm (±20mm)4.1.4 Volume17 dm34.1.5 Weight - Clamping Unit3 kg4.1.6 Weight - Amplifier Unit12 kg (26.5 lb)4.1.7 ColorRAL 7035 and Nature Anodized Aluminum, non reflective.4.1.8 Wind Load~155 N @ 150 km/h (41.67 m/s)4.1.9 MaterialsAll plastic materials are characterized according to ISO 1043.4.1.10 WeatherproofingUL50/IP 654.2 INTERFACESThe TTPA has total of two (2) ports designated BTS and ANT. The BTS Connector carries the signalsto/from the BTS rack (e.g. TX-in, RX-out, DC-power and Alarm signaling). The ANT connector should beconnected to the antenna.
ALLGON SYSTEM AB - Proprietary Technical Specification for PCS Tower Top Power Amplifier [Allgon 9256]Preliminary - Subjected to change without notice Rev.pA0File: 93651 Page 16 (19) 29 Mar 004.2.1 BTS Connector7/16 Female4.2.2 ANT Connector7/16 Female4.2.3 EarthingEarthing stud: M8 x 15mm4.2.4 DC Connector (option 2)Optional DC connector for separate DC, see 2.2Type: Binder series 623 , 6 poles, male4.2.5 Alarm Connector (option 3)Optional alarm connector, see 2.2Type: Binder series 623 , 12 poles, male4.2.6 Power ON LEDOptional LED, indicating POWER ONColor: Green4.3 MOUNTINGNOTE: DC power must be connected to the TTPA within one day after mounting to preventdamage due to moisture.4.3.1 Mounting methodThe TTPA is equipped with a pole clamping unit. This enables the installation personnel to firstinstall the relatively light mast clamp, and then easily hook on the actual amplifier. This featurereduces the risk of accidents during installation.! Pole mounting with clamps. Pole diameter: 50 - 120 mm! Wall mounting by means of mounting plate.4.3.2 Mounting Time The unit is designed to be easily mounted by normally skilled installation personnel in less than20 minutes. (Not including commissioning )4.3.3 Mounting Requirements! The unit must have non obstructed free air to a distance of 0.5m from TOP and BOTTOMsides, and 0.2 m from all other sides, except BACK side.! Mounting angle: Vertically ±10° (Applies to completed mounting, TTPA in operation)4.3.4 MTTRLess than 15 min (excluding commissioning )
ALLGON SYSTEM AB - Proprietary Technical Specification for PCS Tower Top Power Amplifier [Allgon 9256]Preliminary - Subjected to change without notice Rev.pA0File: 93651 Page 17 (19) 29 Mar 005 ENVIRONMENTAL SPECIFICATION5.1 OPERATING CONDITIONS( Conditions: The unit mounted in free air, DC power applied at all times.)5.1.1 Ambient Air Temperature Full PerformanceMax: + 50 °CMin: - 35 °C5.1.2 Survival Operational TemperatureMax: + 80 °CMin: - 40 °CWhen the internal temperature exceeds +80°C the power is reduced and the transmission pathgoes into bypass mode. Resets automatically when the temperature decreases.5.1.3 Relative HumidityMax: 100 %Min: 8 %5.1.4 Absolute HumidityMax: 30 g/m3Min: 0.26 g/m35.1.5 Rate of Temperature ChangeMax: 1°C/min (ambient)5.1.6 Air PressureMax: 106 kPaMin: 70 kPa5.1.7 Solar RadiationMax: 1125 W/m2 (with solar cover)5.1.8 VibrationAccording to: ETS 300 019-2-45.1.9 Applicable Test StandardsETS 300 019-2-4 class T4.180 / 85 environmental test5.2 STORAGE AND TRANSPORTATION( Conditions: 6 months storage of unit in original shipping container with intact sealing )5.2.1 Ambient Air TemperatureMax: + 85 °CMin: - 45 °C
ALLGON SYSTEM AB - Proprietary Technical Specification for PCS Tower Top Power Amplifier [Allgon 9256]Preliminary - Subjected to change without notice Rev.pA0File: 93651 Page 18 (19) 29 Mar 005.2.2 Relative HumidityMax: 100 %Min: 8 %5.2.3 Absolute HumidityMax: 30 g/m3Min: 0.26 g/m35.2.4 Rate of Temperature ChangeMax: 2°C/min (ambient)5.2.5 Air PressureMax: 106 kPaMin: 50 kPa5.2.6 VibrationAccording to: ETS 300 019-2-1ETS 300 019-2-2IEC 68-2-6IEC 68-2-36IEC 68-2-29IEC 68-2-325.2.7 Applicable Test StandardsTransport: ETS 300 019-2-2 class T2.3Storage: ETS 300 019-2-1 class T1.25.3 ELECTROMAGNETIC COMPATIBILITY (EMC)Complies to: ETS 3000 342-2IEC 1000-4-5FCC Part 24FCC Part 155.4 LIGHTNING PROTECTIONAccording to IEC 1000-4-5 extended to 10 kA short circuit current.ANT port DC grounded6 RELIABILTIY SPECIFICATION6.1 OPERATING LIFEThe TTPA is designed for an operating life exceeding 10 years.6.2 THEORETICAL MTBFTheoretical MTBF is calculated according to MIL-HDBK-217F, part stress method, ground fixed,uncontrolled environment, 40°C ambient temperature. If available, practically derived reliability data isused in place of statistical in the calculation. This calculation yields an MTBF of > 25000 hours.
ALLGON SYSTEM AB - Proprietary Technical Specification for PCS Tower Top Power Amplifier [Allgon 9256]Preliminary - Subjected to change without notice Rev.pA0File: 93651 Page 19 (19) 29 Mar 00Note: the calculated MTBF gives a very conservative value. Especially when the components MTBF isbased on the default data specified in MIL-HDBK-217F and not from an accelerated life time test. Ifsuch data was available on every component then a result close to the field proven MTBF could becalculated.6.3 FIELD PROVEN MTBFThe TTPA is designed to demonstrate a field proven MTBF of over 200000 hours, calculated over aperiod exceeding one (1) year.7 SAFETY SPECIFICATION7.1 TOXIC MATERIALSNo toxic materials is used within the unit.7.2 SAFETY CLASSIFICATIONSCE-Recognition: EN 60950UL-Classification: UL 19508 SERVICE AND MAINTENANCE8.1 SERVICENo field serviceable parts inside. Failed unit must be returned to Allgon.Service only by qualified personnel authorized by Allgon.8.2 MAINTENANCENo periodic maintenance necessary.

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