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ALLGON SYSTEM AB -                                   Proprietary
Technical Specification for PCS Tower Top Power Amplifier [Allgon 9256]

Preliminary - Subjected to change without notice                      Rev.pA0




                TOWER TOP POWER AMPLIFIER

                          PCS 1900MHZ / 20W
                                  STANDALONE



                             TECHNICAL SPECIFICATION




File: 93651                            Page 1 (19)                         29 Mar 00


    ALLGON SYSTEM AB -                                                                          Proprietary
Technical Specification for PCS Tower Top Power Amplifier [Allgon 9256]

Preliminary - Subjected to change without notice                                                                                          Rev.pA0



1     INTRODUCTION.......................................................................................................................................... 3
    1.1       PURPOSE ............................................................................................................................................... 3
    1.2       SCOPE................................................................................................................................................... 3
    1.3       REVISION HISTORY.................................................................................................................................... 3
    1.4       RELATED DOCUMENTS ............................................................................................................................. 3
    1.5       ABBREVIATIONS ....................................................................................................................................... 3
    1.6       DEFINITIONS ............................................................................................................................................ 3
2     PRODUCT VARIANT DEFINITION ................................................................................................................ 5
    2.1       DEFINITION OF THE AVAILABLE VARIANTS ....................................................................................................... 5
    2.2       OPTIONAL FUNCTION SELECTION GUIDE ........................................................................................................ 5
3     SYSTEM OVERVIEW................................................................................................................................... 6
    3.1       GENERAL ............................................................................................................................................... 6
    3.2       PRINCIPLE OF OPERATION ......................................................................................................................... 7
4     ELECTRICAL SPECIFICATION................................................................................................................... 10
    4.1       ABSOLUTE MAXIMUM RATINGS.................................................................................................................. 10
    4.2       GENERAL PARAMETERS .......................................................................................................................... 10
    4.3       TRANSMIT PATH PARAMETERS.................................................................................................................. 11
    4.4       RECEIVE PATH PARAMETERS ................................................................................................................... 13
    4.5       FILTER PARAMETERS .............................................................................................................................. 14
    4.6       POWER SUPPLY PARAMETERS ................................................................................................................. 14
5     MECHANICAL SPECIFICATION.................................................................................................................. 15
    5.1       PHYSICAL PARAMETERS .......................................................................................................................... 15
    5.2       INTERFACES ......................................................................................................................................... 15
    5.3       MOUNTING ............................................................................................................................................ 16
6     ENVIRONMENTAL SPECIFICATION........................................................................................................... 17
    6.1       OPERATING CONDITIONS.......................................................................................................................... 17
    6.2       STORAGE AND TRANSPORTATION .............................................................................................................. 17
    6.3       ELECTROMAGNETIC COMPATIBILITY (EMC) ................................................................................................. 18
    6.4       LIGHTNING PROTECTION........................................................................................................................... 18
7     RELIABILTIY SPECIFICATION ................................................................................................................... 18
    7.1       OPERATING LIFE .................................................................................................................................... 18
    7.2       THEORETICAL MTBF .............................................................................................................................. 18
    7.3       FIELD PROVEN MTBF ............................................................................................................................ 19
8     SAFETY SPECIFICATION .......................................................................................................................... 19
    8.1       TOXIC MATERIALS .................................................................................................................................. 19
    8.2       SAFETY CLASSIFICATIONS ........................................................................................................................ 19
9     SERVICE AND MAINTENANCE .................................................................................................................. 19
    9.1       SERVICE .............................................................................................................................................. 19
    9.2       MAINTENANCE ....................................................................................................................................... 19




File: 93651                                                                   Page 2 (19)                                                            29 Mar 00


 ALLGON SYSTEM AB -                                                  Proprietary
Technical Specification for PCS Tower Top Power Amplifier [Allgon 9256]

Preliminary - Subjected to change without notice                                                  Rev.pA0


1        INTRODUCTION
1.1    PURPOSE
      This document describes the Technical specification for the Allgon Tower Top Power Amplifier for the PCS
      1900 cellular band. The product number specified in the header has different variants available. These
      variants have different bandwidths, gain and options. A definition of the different available variants and a
      selection guide can be found in chapter 2.

1.2    SCOPE
         The 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 unit
         is described in this document. Other related products, such as APDU and Current Injectors, are
         described in other documents.


1.3    REVISION HISTORY
              Rev. pA0         Draft                                     990518             M.Österberg
              Rev.             Second draft




1.4    RELATED DOCUM ENTS
         TIA, PS No 3389
         Technical Specification for APDU 9209
         Technical Specification for CI 9219

1.5    ABBREVIATIONS

         TTPA            Tower Top Power Amplifier
         PDU             Power Distribution Unit
         APDU            Alarm And Power Distribution Unit
         CI              Current Injector
         PCN             Personal Cellular Network
         AGC             Automatic Gain Control
         ANT             Antenna
         BTS             Base Transceiver Station
         LED             Light Emitting Diode
         MTBF            Mean Time Between Failures
         MTTR            Mean Time To Replace
         PA              Power Amplifier


1.6    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.
File: 93651                                            Page 3 (19)                                        29 Mar 00


ALLGON SYSTEM AB -                                                Proprietary
Technical Specification for PCS Tower Top Power Amplifier [Allgon 9256]

Preliminary - Subjected to change without notice                                             Rev.pA0


                       Mounting:              Acc. to chapter 5.3

                       The 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 air
        pressure of 1013 mbar, after 30 min warm up, unless otherwise stated. The TTPA is designed for an
        operating life exceeding 10 years.




File: 93651                                         Page 4 (19)                                     29 Mar 00


 ALLGON SYSTEM AB -                                                Proprietary
Technical Specification for PCS Tower Top Power Amplifier [Allgon 9256]

Preliminary - Subjected to change without notice                                               Rev.pA0



2 PRODUCT VARIANT DEFINITION
      The TTPA are available with different frequency bands, together covering all PCS bands. A number of
      optional functions (listed in 2.2) are available depending on configuration. The existing, and preferred
      product 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 Product

2.2    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




File: 93651                                          Page 5 (19)                                       29 Mar 00


 ALLGON SYSTEM AB -                                                   Proprietary
Technical Specification for PCS Tower Top Power Amplifier [Allgon 9256]

Preliminary - Subjected to change without notice                                                Rev.pA0



3 SYSTEM OVERVIEW
3.1    GENERAL
      The PCS Tower Top Power Amplifier (TTPA) is intended for use at sites where it is necessary to improve
      the coverage area. The TTPA boosts both the receive-path signal and the transmit power from one TRx in
      order to preserve site link balance. TX and RX signal paths are separated by means of duplexers. The TX
      Power Amplifier (PA), as well as the RX Low Noise Amplifier (LNA), utilizes balanced architectures to add
      redundancy.

      The TTPA can also be used together with a micro or mini BTS to reach coverage equivalent with a far
      more expensive Macro BTS installation.

      The TTPA has a small and lightweight design, which enables it to be mounted in the antenna tower, near
      the antenna. This means that less costly feeders can be used since the attenuation becomes of less
      concern when the PA and the LNA is situated near the antenna. DC power to the TTPA is supplied , via the
      antenna feeder. The TTPA incorporates an advanced self-supervision system that automatically switches
      the unit into bypass mode in the event of malfunction or power failure.




                              RX/TX      RX      RX/TX




                             MHB                                               KEY PARAMETERS
                                                     MHB
                                                                               TX Gain: 7 dB

                                                                               TX Power: +43 dBm (20W)
                             TTA
                                                                               RX Gain: 13dB




                                                              RX/TX    BTS
                                                              RX
                                                              RX
                                                              RX/TX




                   Figure 1. Typical site configuration with Tower Top Amplifiers.



File: 93651                                            Page 6 (19)                                      29 Mar 00


 ALLGON SYSTEM AB -                                                                             Proprietary
Technical Specification for PCS Tower Top Power Amplifier [Allgon 9256]

Preliminary - Subjected to change without notice                                                                    Rev.pA0



3.2     PRINCIPLE OF OPERATION

3.2.1         General
                       The 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 the
                       BTS rack (e.g. TX-in, RX-out, DC-power). The ANT port will be connected to the antenna. See
                       figure 2 Basic TTPA Block Diagram.




                                                                                         RX byp ass




                                                                                                                                 ANT port
              BTS port             CI
                                    &
                                   LP                                        dB
                                                                                                             dB       dB


                                                       In pu t Pow er
                                                                                                         Forwa rd    Re ve rse
                                                                                                          Pow er      Pow er

                 EXT.D C
                  op ti on


                                                                                  TX byp ass
                                             SYSTEM
                                           CONTROLLE
                EXT:AL ARM
                  op ti on




                                              26 V                      dB




                             DC /D C 26V




                        Figure 2. Block diagram of the Tower Top Power Amplifier.




3.2.2         Transmit Path
                       The Transmit path incorporates a balanced power amplifier with high linearity. An Automatic
                       Gain Control circuit (AGC) keeps the gain at a constant level from input to ANT output. TX-path
                       Bypass is optional.

3.2.3         Receive Path
                       The Receive path consists of a balanced LNA with very low noise factor. The LNA has a gain
                       change capability in order to compensate for different feeder losses and optimize the link budget
                       on 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 fed
                       into the unit on the BTS input connector through the feeder is standard. Separate DC connector
                       and redundant DC/DC is optional.
File: 93651                                                   Page 7 (19)                                     29 Mar 00


 ALLGON SYSTEM AB -                                                    Proprietary
Technical Specification for PCS Tower Top Power Amplifier [Allgon 9256]

Preliminary - Subjected to change without notice                                                  Rev.pA0


3.2.5         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         Alarming
                The 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 alarms
                that indicates loss of transmission. All alarms can be gated to one by simply connecting the
                contacts 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
File: 93651                                              Page 8 (19)                                       29 Mar 00


ALLGON SYSTEM AB -                                                    Proprietary
Technical Specification for PCS Tower Top Power Amplifier [Allgon 9256]

Preliminary - Subjected to change without notice                                    Rev.pA0


              **** Optional function, not supported in all variant.




File: 93651                                            Page 9 (19)                       29 Mar 00


 ALLGON SYSTEM AB -                                                    Proprietary
Technical Specification for PCS Tower Top Power Amplifier [Allgon 9256]

Preliminary - Subjected to change without notice                                                 Rev.pA0



ELECTRICAL SPECIFICATION
3.3     ABSOLUTE MAXIM UM RATINGS
         The Absolute Maximum Rating is defined as the value of applied signal/power etc. that is guaranteed not
         to 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                -           dBm

3.4     GENERAL PARAM ETERS


3.4.1         Nominal Impedance
                 Nominal impedance of all ports: 50Ω

3.4.2         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 dB

3.4.3         Power Consumption
                 Max:          130W              (2.5A @48V)
                 Primary Fuse: 4 A Slow

3.4.4         Antenna Supervision (VSWR) (option 5)
                 This optionally feature monitors the Forward and Reflected power at the ANT port. If calculated
                 VSWR exceeds the VSWR LIMIT, a VSWR-alarm is issued. The VSWR value below is the
                 default 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 supervision
                 function 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 .


File: 93651                                            Page 10 (19)                                      29 Mar 00


 ALLGON SYSTEM AB -                                                 Proprietary
Technical Specification for PCS Tower Top Power Amplifier [Allgon 9256]

Preliminary - Subjected to change without notice                                               Rev.pA0


3.4.6         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 output
                power 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 kHz


3.5     TRANSM IT PATH PARAM ETERS

3.5.1         TX Operating Frequency
                -See section 2.1


3.5.2         TX Nominal Output Power
                Measured 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 Linearity
                Measured with two CW signals of 37dBm each (43dBm Peak Power) out from the unit in TX
                band, giving 40dBm total average output power. Max 1MHz spacing between tones.

                Level of IM-tones Max: -30dBc


3.5.5         TX Nominal Gain
                Nominal Gain is defined as [MaxGain(inband) + MinGain(inband)] / 2

                7dB

File: 93651                                          Page 11 (19)                                      29 Mar 00


 ALLGON SYSTEM AB -                                                   Proprietary
Technical Specification for PCS Tower Top Power Amplifier [Allgon 9256]

Preliminary - Subjected to change without notice                                                        Rev.pA0


3.5.6         TX Gain Tolerance
                Measured with AGC in operation.
                Nominal gain ± 0.5 dB

3.5.7         TX Gain Ripple
                Ripple is defined as [MaxGain(inband) - MinGain(inband)]

                Max:    1 dB

3.5.8         TX AGC Operation
                The 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 Stability
                The TX-amplifier is unconditionally stable for all passive loads at input and output.


3.5.10        TX Spurious Emissions and Broadband Noise
                Measured 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 / Bandwidth
                                   RX band                                      - 128 dBm / 100 kHz
                              1850-1910 MHz                                       - 98 dBm / 100 kHz
                               824 - 849 MHz                                      - 98 dBm / 100 kHz
                             100 kHz - 50 MHz                                     - 36 dBm / 10 kHz
                                 50-1000 MHz                                      - 36 dBm / 100 kHz
                  1 – 12.75 GHz, outside TX band >+     2 MHz                     - 30 dBm / 30 kHz
                               “                        >+ 5                      - 30 dBm / 100 kHz
                                     MHz
                              “                          >+ 10                    - 30 dBm / 300 kHz
                                     MHz
                              “                          >+ 20                    - 30 dBm /      1 MHz
                                     MHz
                              “                          >+ 30                    - 30 dBm /      3 MHz
                                     MHz

                Inside TX band:

                                   Frequency band                              Max peak power / Bandwidth
                           Carrier offset > + 1.8 MHz                            - 36 dBm / 30 kHz
                           Carrier offset > + 6 MHz                              - 36 dBm / 100 kHz



File: 93651                                            Page 12 (19)                                          29 Mar 00


 ALLGON SYSTEM AB -                                                    Proprietary
Technical Specification for PCS Tower Top Power Amplifier [Allgon 9256]

Preliminary - Subjected to change without notice                                                    Rev.pA0


3.5.11        TX Bypass Loss (option 7)
                 TX bypass function is optional.
                 Measured from ANT to BTS port
                 Typ.   2.0 dB
                 Max: 2.6 dB

3.5.12        TX Redundancy & Bypass Operation
                 In the event of failure of one of the transistors in the power amplifier the gain will drop by
                 approx. 6dB. In this condition a TX-minor alarm will be generated. If both transistors fail and the
                 TX Bypass option is installed, the TX-path will be switched to bypass mode and a TX-major
                 alarm will be issued. Bypass mode will automatically be initiated if DC power to the PA fails.


3.6     RECEIVE PATH PARAM ETERS

3.6.1         RX Operating Frequency

                 -See section 2.1

3.6.2         RX Gain
                 Nominal Gain is defined as [MaxGain(inband) + MinGain(inband)] / 2

                 13 dB

                 Optionally reduced in 1 dB steps from 13 to 7 dB.

3.6.3         RX Gain Tolerance
                 ±0.6 dB

3.6.4         RX Gain Ripple
                 Ripple is defined as [MaxGain(inband) - MinGain(inband)]

                 ±0.5 dB

3.6.5         RX Noise Figure
              Measured at Nominal RX gain.
                Typ:    1.9 dB
                Max: 2.9 dB

3.6.6         RX Bypass Loss ( option 6 )
                 RX bypass function is optional.
                 Measured from ANT to BTS port
                 Typ.   2.2 dB
                 Max    2.9 dB

3.6.7         RX Input Intercept Point IIP3
                 Min:      +6dBm


File: 93651                                             Page 13 (19)                                        29 Mar 00


 ALLGON SYSTEM AB -                                                   Proprietary
Technical Specification for PCS Tower Top Power Amplifier [Allgon 9256]

Preliminary - Subjected to change without notice                                                    Rev.pA0


3.6.8         RX Stability
                The RX-amplifier is unconditionally stable for all loads at input and output of the TTPA.

3.6.9         RX Redundancy
                In 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 be
                generated.


3.7     FILTER PARAM ETERS

                Rx and Tx bands according to paragraph 2.1

                Isolation ANT to LNA input

                             DC – 1000                                 90 dB
                   1000 – {35 MHz below Rx Band}                       30 dB
                            1910 – 1990                                50 dB
                       Tx Band (20 MHz wide)                           85 dB
                            1990 – 5970                                40 dB
                           5970 – 12750                                20 dB


3.8     POWER SUPPLY PARAM ETERS

3.8.1         Supply Voltage
                - 48 Volts DC

3.8.2         Supply Voltage Tolerance
                Measured at BTS port.
                Max:          -60V
                Min:          -40 V

3.8.3         Supply Voltage Noise Tolerance
                ! Ripple and noise 10Hz to 100 MHz:                       100 mV p-p
                ! Wideband noise 4kHz to 20 MHz, any 3kHz band:           1V p-p

3.8.4         DC/DC Redundancy (option 4)
                The power supply consists of two DC/DC converters in parallel, sharing the current. In the case
                off 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 to
                the 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



File: 93651                                            Page 14 (19)                                         29 Mar 00


 ALLGON SYSTEM AB -                                                  Proprietary
Technical Specification for PCS Tower Top Power Amplifier [Allgon 9256]

Preliminary - Subjected to change without notice                                              Rev.pA0


3.8.6         Inrush Current
                Measured at power on with nominal supply voltage.
                Max peak:             15A
                Max after 10ms:        3A

4 MECHANICAL SPECIFICATION
4.1     PHYSICAL PARAM ETERS

4.1.1         Height
                350 mm              (±20mm)

4.1.2         Width
                220 mm              (±20mm)

4.1.3         Depth
                230 mm              (±20mm)

4.1.4         Volume
                        3
                17 dm

4.1.5         Weight - Clamping Unit
                3 kg

4.1.6         Weight - Amplifier Unit
                12 kg       (26.5 lb)

4.1.7         Color
                RAL 7035 and Nature Anodized Aluminum, non reflective.

4.1.8         Wind Load
                ~155 N @ 150 km/h (41.67 m/s)

4.1.9         Materials
                All plastic materials are characterized according to ISO 1043.

4.1.10        Weatherproofing
                UL50/IP 65


4.2     INTERFACES
         The TTPA has total of two (2) ports designated BTS and ANT. The BTS Connector carries the signals
         to/from the BTS rack (e.g. TX-in, RX-out, DC-power and Alarm signaling). The ANT connector should be
         connected to the antenna.




File: 93651                                           Page 15 (19)                                    29 Mar 00


 ALLGON SYSTEM AB -                                                   Proprietary
Technical Specification for PCS Tower Top Power Amplifier [Allgon 9256]

Preliminary - Subjected to change without notice                                                   Rev.pA0


4.2.1         BTS Connector
                7/16 Female

4.2.2         ANT Connector
                7/16 Female

4.2.3         Earthing
                Earthing stud:   M8 x 15mm

4.2.4         DC Connector (option 2)
                Optional DC connector for separate DC, see 2.2
                Type: Binder series 623 , 6 poles, male

4.2.5         Alarm Connector (option 3)
                Optional alarm connector, see 2.2
                Type: Binder series 623 , 12 poles, male

4.2.6         Power ON LED
                Optional LED, indicating POWER ON
                Color: Green

4.3     MOUNTING
                NOTE: DC power must be connected to the TTPA within one day after mounting to prevent
                damage due to moisture.

4.3.1         Mounting method
                The TTPA is equipped with a pole clamping unit. This enables the installation personnel to first
                install the relatively light mast clamp, and then easily hook on the actual amplifier. This feature
                reduces 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 than
                20 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 BOTTOM
                  sides, 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         MTTR
                Less than 15 min (excluding commissioning )




File: 93651                                            Page 16 (19)                                        29 Mar 00


 ALLGON SYSTEM AB -                                                     Proprietary
Technical Specification for PCS Tower Top Power Amplifier [Allgon 9256]

Preliminary - Subjected to change without notice                                                       Rev.pA0


5 ENVIRONMENTAL SPECIFICATION
5.1     OPERATING CONDITIONS
         ( Conditions: The unit mounted in free air, DC power applied at all times.)

5.1.1         Ambient Air Temperature Full Performance
                 Max:     + 50 °C
                 Min:     - 35 °C

5.1.2         Survival Operational Temperature
                 Max: + 80 °C
                 Min:    - 40 °C
                 When the internal temperature exceeds +80°C the power is reduced and the transmission path
                 goes into bypass mode. Resets automatically when the temperature decreases.

5.1.3         Relative Humidity
                 Max:     100 %
                 Min:     8%

5.1.4         Absolute Humidity
                                  3
                 Max:     30 g/m
                                  3
                 Min:     0.26 g/m

5.1.5         Rate of Temperature Change
                 Max:     1°C/min (ambient)

5.1.6         Air Pressure
                 Max:     106 kPa
                 Min:     70 kPa

5.1.7         Solar Radiation
                                       2
                 Max:     1125 W/m (with solar cover)

5.1.8         Vibration
                 According to:        ETS 300 019-2-4

5.1.9         Applicable Test Standards
                 ETS 300 019-2-4 class T4.1
                 80 / 85 environmental test

5.2     STORAGE AND TRANSPORTATION
         ( Conditions: 6 months storage of unit in original shipping container with intact sealing )

5.2.1         Ambient Air Temperature
                 Max:     + 85 °C
                 Min:     - 45 °C


File: 93651                                              Page 17 (19)                                       29 Mar 00


 ALLGON SYSTEM AB -                                                 Proprietary
Technical Specification for PCS Tower Top Power Amplifier [Allgon 9256]

Preliminary - Subjected to change without notice                                                   Rev.pA0


5.2.2        Relative Humidity
                 Max:    100 %
                 Min:    8%

5.2.3        Absolute Humidity
                                 3
                 Max:    30 g/m
                                 3
                 Min:    0.26 g/m

5.2.4        Rate of Temperature Change
                 Max:    2°C/min (ambient)

5.2.5        Air Pressure
                 Max:    106 kPa
                 Min:    50 kPa

5.2.6        Vibration
                 According to:       ETS 300 019-2-1
                                     ETS 300 019-2-2
                                     IEC 68-2-6
                                     IEC 68-2-36
                                     IEC 68-2-29
                                     IEC 68-2-32

5.2.7        Applicable Test Standards
                 Transport:          ETS 300 019-2-2 class T2.3
                 Storage:            ETS 300 019-2-1 class T1.2


5.3     ELECTROM AGNETIC COM PATIBILITY (EMC)
         Complies to:    ETS 3000 342-2
                         IEC 1000-4-5
                         FCC Part 24
                         FCC Part 15


5.4     LIGHTNING PROTECTION
         According to IEC 1000-4-5 extended to 10 kA short circuit current.

         ANT port DC grounded

6 RELIABILTIY SPECIFICATION
6.1     OPERATING LIFE
         The TTPA is designed for an operating life exceeding 10 years.

6.2     THEORETICAL MTBF
          Theoretical 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 is
          used in place of statistical in the calculation. This calculation yields an MTBF of > 25000 hours.
File: 93651                                                 Page 18 (19)                                     29 Mar 00


 ALLGON SYSTEM AB -                                                    Proprietary
Technical Specification for PCS Tower Top Power Amplifier [Allgon 9256]

Preliminary - Subjected to change without notice                                             Rev.pA0


         Note: the calculated MTBF gives a very conservative value. Especially when the components MTBF is
         based on the default data specified in MIL-HDBK-217F and not from an accelerated life time test. If
         such data was available on every component then a result close to the field proven MTBF could be
         calculated.

6.3    FIELD PROVEN MTBF
         The TTPA is designed to demonstrate a field proven MTBF of over 200000 hours, calculated over a
         period exceeding one (1) year.



7 SAFETY SPECIFICATION
7.1    TOXIC MATERIALS
         No toxic materials is used within the unit.

7.2    SAFETY CLASSIFICATIONS
      CE-Recognition: EN 60950
      UL-Classification: UL 1950



8 SERVICE AND MAINTENANCE
8.1    SERVICE
         No field serviceable parts inside. Failed unit must be returned to Allgon.
         Service only by qualified personnel authorized by Allgon.


8.2    MAINTENANCE
         No periodic maintenance necessary.




File: 93651                                             Page 19 (19)                                 29 Mar 00



Document Created: 2000-03-29 12:12:18
Document Modified: 2000-03-29 12:12:18

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