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					BTS3012
Hardware Description                                                                            2 BTS3012 Cabinet




                                                                2         BTS3012 Cabinet


About This Chapter

                    The BTS3012 cabinet consists of the common subrack, DAFU subrack, DTRU subrack, FAN
                    subrack, transmission subrack, and cabinet top subrack. The BTS3012 cabinet is designed in
                    compliance with the IEC297 standard, featuring a modular structure. It is used to processes the
                    signals within the BTS.

                    2.1 Structure of the BTS3012 Cabinet
                    The BTS3012 cabinet in designed in compliance with the IEC60297 standard. It is blue in color
                    and vertical in appearance.
                    2.2 Physical Structure of the BTS3012
                    The BTS3012 has the following components: BTS3012 cabinet, antenna system, and Operation
                    and Maintenance (OM) equipment.
                    2.3 Cable Distribution of the BTS3012
                    The cable distribution of the BTS3012 includes the cable distribution on the cabinet front and
                    the internal cable distribution on the cabinet top. The cable distribution on the cabinet front
                    applies to the configuration of DDPU or DFCU in the cabinet.
                    2.4 Engineering Specifications for the BTS3012
                    The BTS3012 engineering specifications are concerned with dimensions, weight, power supply,
                    and power consumption of the BTS3012.




Issue 01 (2007-06-30)                             Huawei Technologies Proprietary                               2-1
                                                                                                      BTS3012
2 BTS3012 Cabinet                                                                           Hardware Description




2.1 Structure of the BTS3012 Cabinet
                    The BTS3012 cabinet in designed in compliance with the IEC60297 standard. It is blue in color
                    and vertical in appearance.
                    Figure 2-1 shows the BTS3012 cabinet.

                    Figure 2-1 BTS3012 cabinet




2-2                            Huawei Technologies Proprietary                              Issue 01 (2007-06-30)
BTS3012
Hardware Description                                                                                 2 BTS3012 Cabinet




2.2 Physical Structure of the BTS3012
                    The BTS3012 has the following components: BTS3012 cabinet, antenna system, and Operation
                    and Maintenance (OM) equipment.


Physical Structure of the BTS3012 Cabinet
                    The BTS3012 cabinet has the following components: DAFU subrack, DTRU subrack, fan
                    subrack, common subrack, top subrack, transmission subrack, and power supply unit.

                    Figure 2-2 shows a fully configured BTS3012 under S4/4/4 cell configuration.

                    Figure 2-2 Fully configured BTS3012 cabinet

                                                        Power
                             7                         and EMC          6




                                 D            D        D                5
                        9U       D            D        D
                                 P            P        P
                                 U            U        U
                                                                 B
                                                                 u
                        1U                    Wiring             s
                        1U                                       b
                                                                 a
                                                                 r
                                 D    D       D   D    D   D
                                 T    T       T   T    T   T
                        9U       R    R       R   R    R   R
                                 U    U       U   U    U   U

                                                                        4

                        1U                Wiring
                        2U                    FAN                       3
                        1U                Air Inlet

                                 D DD          DD D
                        6U       T TE          CC A
                                 M MM          SC T                     2
                                 U UU          UU U

                        1U           Wiring & Air Inlet
                                   Transmission Unit                    1
                        2U
                                   Transmission Unit                    1




                    (1) Transmission subrack                   (2) Common subrack         (3) FAN subrack

                    (4) DTRU subrack                           (5) DAFU subrack           (6) Power supply unit

                    (7) Cabinet top subrack



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                                                                                                         BTS3012
2 BTS3012 Cabinet                                                                              Hardware Description

                    l   DAFU Subrack
                        The DAFU subrack can be configured with 4.8 DDPU, 4.5 DCOM, 4.12 DFCU, or 4.11
                        DFCB.
                        For details about the DAFU subrack, refer to BTS3012 RF Front-End Subsystem.
                    l   DTRU Subrack
                        One DTRU subrack supports up to six 4.17 DTRUs.
                        For details about the DTRU subrack, refer to BTS3012 Double-Transceiver Subsystem.
                    l   FAN Subrack
                        The FAN subrack has only one FAN box inside it. The FAN box contains one fan
                        monitoring board and four fans. The fan monitoring board detects the temperature at the
                        air inlets at the bottom of the cabinet, and adjusts the speed and working status of the fans.
                        For details about the fan subrack, refer to 4.18 FAN Box.
                    l   Common Subrack
                        The common subrack is below the fan subrack. It is configured with the following parts:
                            4.15 DTMU
                            4.9 DEMU
                            4.2 DATU
                            4.6 DCSU
                            4.3 DCCU
                        For details about the common subrack, refer to BTS3012 Common Subsystem.
                    l   Cabinet Top Subrack
                        The cabinet top subrack is located at the top of the BTS3012 cabinet. It is configured with
                        the following parts:
                            4.13 DMLC
                            4.10 DELC
                            4.14 DSAC
                        For details about the cabinet top subrack, refer to BTS3012 Signal Protection
                        Subsystem.
                    l   Power Supply Unit
                        The power supply unit consists of the DC lightning arrester, EMI filter, PGND bar, busbar
                        terminal socket on top of the cabinet, and the Busbar in the right of the cabinet.
                        For details about the power supply unit, refer to BTS3012 Power Subsystem.
                    l   Transmission Subrack
                        The transmission subrack is below the common subrack. The transmission subrack reserves
                        space for installing the Baseband Unit (BBU). The SDH and microwave transmission
                        equipment can be installed in the transmission subrack

Physical Structure of the Antenna System
                    For details about the antenna system, refer to Antenna Subsystem of the BTS.

Physical Structure of the Equipment
                    For details about the equipment, refer to OM of the BTS.

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Hardware Description                                                                                                               2 BTS3012 Cabinet




2.3 Cable Distribution of the BTS3012
                    The cable distribution of the BTS3012 includes the cable distribution on the cabinet front and
                    the internal cable distribution on the cabinet top. The cable distribution on the cabinet front
                    applies to the configuration of DDPU or DFCU in the cabinet.

Cable Distribution on the Cabinet Front
                    Figure 2-3 shows the cable distribution on the cabinet front when the DDPU is configured.

                    Figure 2-3 Cable distribution on the cabinet front (configured with the DDPU)

                               S12.1       S12.2         S12.3 S12.4            S12.5         S12.6                P2

                                  DCOM DDPU DCOM DDPU DCOM DDPU                                                         P1


                                                                                                                 BGND

                                                                                                                    -48V

                                                P6.1                           P6.2                      P6.3
                                          R7                      R9                          R11        R5
                                                R1                             R3
                                               R8                        R10                         R12                     P6
                                                                TX 1                         TX 1                            P6
                                               R13 R2                                                  R17R6
                                                                           R15R4
                                               R14                         R16                         R18
                                                                TX 2                        TX 2


                                  DTRU DTRU DTRU DTRU DTRU DTRU                                                              P7
                                    R19             R21     R23                R25           R27       R29
                                                                                                                             P8
                                    R1              R2          R3             R4            R5         R6
                                    R20             R22         R24            R26           R28      R30
                                                                                                                             P9

                                     R7         R8              R9             R10    R11 R12
                                    R13         R14             R15            R16 P9 R17 R18
                                                                                                                             P10
                              D                                                         P8
                              T
                              R                                                                               P7             P11
                              B
                                                      P11            P10
                                  FAN P12                                                                                    P12
                              S14
                                       S9
                                                                                                       P13                   P13
                                               DEMU                     DCSU DCCU       DATU         BBU/
                                                                  S15                             Transmission
                                                          S10                                       subrack

                                               S11                      S16                  S13.1                           P14
                                                                                            S13.2
                                                                                       S9
                                                                                            S13.3

                                                                         S14
                                                                                            S13.4      P15                   P15
                                                                                S17.
                                                                                        S13.5          P15                   P15
                                                                                 2        S13.6
                                                                       S17.1

                             To cabinet top :             S15                       P14
                                   S12 S11                S16
                                          S10             S17
                                   S12 S13

                                    Signal cable                  Power cable                                 RF cable




Issue 01 (2007-06-30)                                                  Huawei Technologies Proprietary                                           2-5
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2 BTS3012 Cabinet                                                                                            Hardware Description


                       NOTE

                        l    As shown in Figure 2-3, the RF cables connected between the DTRU and the DDPU are based on the
                             S4/4/4 cell configuration.
                        l    Normally, the DCOM is not configured in S4/4/4 cell configuration. However, the DCOM is added in
                             Figure 2-3 for easy description of the cable connections between the DCTB and the DAFU subrack.
                        l    The seven signal cables in Figure 2-3, namely, S10-S13 and S15-S17, are connected to the cabinet
                             top.

                    Figure 2-4 shows the cable distribution on the cabinet front when the DFCU is configured.

                    Figure 2-4 Cable distribution on the cabinet front (configured with the DFCU)

                            S12.1               S12.2                   S12.3              P2
                                                                                                P1
                                 DFCU R1           DFCU                    DFCU
                                                 S18
                                                                                           BGND

                                 R7                                                             -48V
                                        R2                  S19
                            R8
                            R32
                            R9 R31 R3                                                                  P6
                                R10                                                                    P6


                                        R4


                            DTRU        DTRU DTRU DTRU                  DTRU DTRU                      P7


                                                                                                       P8


                                                                                                       P9


                                                                                                       P10


                        D                                         P9
                        T                                                    P8                        P11
                        R
                                                                                     P7
                        B                               P10
                        S
                           FAN P12            P11                                                      P12
                        14
                               S
                               9                                                     P
                                                                                     13                P13
                                       DEMU                 DCSUDCCU DATU       BBU/
                                                      S15                   Transmission
                                              S10                              subrack
                                                                          S13.1                        P14
                                          S11                            S13.2
                                                            S16    S9 S13.3
                                                                         S13.4     P15                 P15
                                                            S14
                                                                  S1     S13.5     P15                 P15
                                                                  7.2    S13.6
                                                        S17.1
                       To cabinet top :         S15
                               S12 S11
                                                                  P14
                                                S16
                               S12 S10          S17
                                    S13
                              Signal cable                  Power cable               RF cable




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Hardware Description                                                                                                                                                            2 BTS3012 Cabinet


                             NOTE

                             As shown in Figure 2-4, the RF cables connected between the DTRU and the DFCU are based on the
                             S4/4/4 cell configuration. As the number of cables is great, for easy recognition, connections of only the
                             RF TX cables are provided in sector 1 and connections of only the power detection cables are provided in
                             sector 2. Actually, the RF signal cables and the power detection cables in every sector should be connected.


Internal Cable Distribution on the Cabinet Top
                    Figure 2-5 shows the internal cable distribution on the cabinet top.

                    Figure 2-5 Internal cable distribution on the cabinet top


                                            S3
                                                           S2.1
                        S6                                                                                                                           P3              GND
                                                                                        P4
                                                                                                                                                          P3




                                                                                                                                              GND
                                            S4




                                                                                              V-
                                                                   S1                   P5                                                          S4


                                                                                              V+
                    S7                        S3                                        P16




                                                                                                                          -48V -48V GND GND
                                                                                              -48V -48V GND GND
                                                                  External connection   P5                                                    P2                 P2
                                                                  of the power cables
                                                                                        P17
                       S8        S5.1S5.2              S2.2                             P4                                                          P1
                                                    S20
                                                                                                                                                                         -48V

                                                    S13.1          Bias          S13.3 Bias                       S13.5
                                                                                                                        Bias
                                                                   Tee                 Tee                              Tee
                                                                   Bias          S13.4 Bias                       S13.6 Bias
                                                   S13.2           Tee                 Tee                              Tee
                                                                                                                                                               S13

                                                             Signal cable                                            Power cable




Description of Cable Distribution on the Cabinet
                    Table 2-1 describes the cable distribution of the cabinet.

                    Table 2-1 Description of Cable Distribution in the Cabinet
                        Cable No.                Cable Name                                                                                                          Quantity

                        R1–R6                    RF TX cable                                                                                                         6

                        R7–R18                   RF RX cable                                                                                                         12

                        R19–R30                  Cable for the combiner on the DTRU                                                                                  12

                        R31                      Cable for the combiner on the DTRU                                                                                  3

                        R32                      Diversity receive short-circuiting cable                                                                            3

                        S1                       Signal cable between combined cabinets                                                                              1

                        S2                       Signal cable between cabinet groups                                                                                 2

                        S3                       Environment monitoring signal cable                                                                                 1

                        S4                       Lightning protection failure alarm cable                                                                            1
                                                 on the cabinet top

                        S5                       E1 cable                                                                                                            2


Issue 01 (2007-06-30)                                                 Huawei Technologies Proprietary                                                                                         2-7
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2 BTS3012 Cabinet                                                                                       Hardware Description


                     Cable No.             Cable Name                                            Quantity

                     S6                    Boolean value input cable                             1

                     S7                    Boolean value output cable                            1

                     S8                    Dedicated monitoring signal cable                     1

                     S9                    FAN subrack signal transfer cable                     1

                     S10                   E1 signal transfer cable                              1

                     S11                   Boolean value signal transfer cable                   1

                     S12                   Signal cable between the DCTB and the                 2
                                           DAFU subrack

                     S13                   RET control signal cable                              6

                     S14                   Signal cable between the DCSU and the                 1
                                           DTRB

                     S16/S15               Signal transfer cable for combined                    1
                                           cabinets

                     S17                   Signal cable between the DCCU/DCSU                    1
                                           and the DCTB

                     S18-S19               Power detection cable                                 6

                     S20                   EAC signal cable                                      1

                     P1–P2                 Power cable                                           1

                     P3                    PGND cable                                            1

                     P4–P5                 Power cable                                           1

                     P6–P15                Busbar power cable

                     P16–P17               Power cable                                           2


                       NOTE

                          Use the combination mode in the DFCU first when the cabinet using the DFCU is configured in S4/4/4
                          cell configuration. Because the combination mode in the DTRU is not used, the cables for the combiner
                          on the DTRU (R19-R30) are not required.



2.4 Engineering Specifications for the BTS3012
                    The BTS3012 engineering specifications are concerned with dimensions, weight, power supply,
                    and power consumption of the BTS3012.




2-8                               Huawei Technologies Proprietary                                       Issue 01 (2007-06-30)
BTS3012
Hardware Description                                                                                  2 BTS3012 Cabinet


Dimensions

                    Table 2-2 Dimensions (appearance)
                        Item                              Width (mm)            Depth (mm)           Height (mm)

                        Cabinet                           600                   450                  1600

                        Cabinet+top subrack               600                   450                  1680

                        Cabinet+top subrack+base          600                   450                  1750


Weight

                    Table 2-3 Weight of the cabinet
                        Configuration Type                                       Weight of the Cabinet (Kg)

                        Empty cabinet (including the boards in the common        120
                        subrack)

                        Full configuration (S4/4/4)                              200

                        Full configuration (S4/4/4 cell configuration            220
                        including the transmission modules and the
                        DCOMs)


Power Supply

                    The BTS3012 uses the —48 V DC that complies with the specification ETS 300 132-2. Table
                    2-4 lists specifications for the input power.

                    Table 2-4 Specifications for the input power
                        Power Type                    Rated Value                        Specifications

                        -48 V DC                      -48 V DC                           -40 V DC to -60 V DC


                          NOTE

                           The BTS3012 cabinet supports 110 V AC, 220 V AC, and +24 V DC through an external power subrack.


Power Consumption
                    Table 2-5 lists the typical power consumption value of the BTS3012 when the DTRU (type A)
                    is used.




Issue 01 (2007-06-30)                                 Huawei Technologies Proprietary                                  2-9
                                                                                                     BTS3012
2 BTS3012 Cabinet                                                                          Hardware Description

                    Table 2-5 Power consumption
                     Parameter              Configuration Type                               Power
                                                                                             Consumption

                     Mean value             Normal temperature, 900 MHz 40 W TRX,            1.6 kW
                                            S4/4/4 full configuration, DC power
                                            consumption in mean traffic volume (–48 V DC
                                            used)


                    Table 2-6 lists the typical power consumption value of the BTS3012 when the DTRU (type B)
                    is used.

                    Table 2-6 Power consumption
                     Parameter              Configuration Type                               Power
                                                                                             Consumption

                     Mean value             Normal temperature, 900 MHz 40 W TRX,            0.95 kW
                                            S4/4/4 full configuration, DC power
                                            consumption in mean traffic volume (–48 V DC
                                            used)




2-10                           Huawei Technologies Proprietary                             Issue 01 (2007-06-30)

				
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