HUAWEI BTS3012

23,664 views

Published on

Published in: Business, Technology
4 Comments
24 Likes
Statistics
Notes
No Downloads
Views
Total views
23,664
On SlideShare
0
From Embeds
0
Number of Embeds
13
Actions
Shares
0
Downloads
1,885
Comments
4
Likes
24
Embeds 0
No embeds

No notes for slide

HUAWEI BTS3012

  1. 1. <ul><li>Upon completion of this course, you will be able to: </li></ul><ul><ul><li>Know the functions and features of BTS </li></ul></ul><ul><ul><li>Master the BTS hardware structure </li></ul></ul><ul><ul><li>Master the cable connection of BTS </li></ul></ul>Objectives
  2. 2. <ul><li>Overview </li></ul><ul><li>System Components </li></ul><ul><li>Signal Processing </li></ul><ul><li>Antenna and Feeder System </li></ul><ul><li>Typical Configuration </li></ul>Contents
  3. 3. Location MS: Mobile Station BTS: Base Transceiver Station BSC: Base Station Controller HLR: Home Location Register AUC: Authentication Center EIR: Equipment Identity Register MSC: Mobile Switching Center VLR: Visitor Location Register SMC: Short Message Center VM: Voice Mailbox OMC: Operation and Maintenance Center PSTN ISDN PSPDN Um Interface BTS3012 BTS3012 BTS3012 BTS3012 OMC HLR/AUC/EIR BSC MSC/VLR SMC/VM A Interface MAP MAP TUP,ISUP MS MS MS
  4. 4. Features and Functions <ul><li>Support GSM900M 、 1800M 、 1900M </li></ul><ul><li>Support networking topology includes star, tree, chain and ring </li></ul><ul><li>Support A5/1 and A5/2 encryption/decryption </li></ul><ul><li>Support GPRS and EDGE </li></ul><ul><li>Support dynamic and static power control </li></ul><ul><li>Support the omni-directional coverage and directional coverage </li></ul>
  5. 5. Features and Functions <ul><li>Double Transceiver Unit (DTRU). A single cabinet can support up to 12 carriers. It can smoothly evolve into WCDMA </li></ul><ul><li>Transmit diversity, 4-receive diversity </li></ul><ul><li>Support Power Boost Technology (PBT) </li></ul><ul><li>Support more various transmission mode includes E1, STM-1, microwave, and satellite transmission </li></ul>
  6. 6. Contents <ul><li>Overview </li></ul><ul><li>System Components </li></ul><ul><li>Signal Processing </li></ul><ul><li>Antenna and Feeder System </li></ul><ul><li>Typical Configuration </li></ul>
  7. 7. Hardware structure TMA TMA DTRU DAFU Antenna and feeder subsystem Forepart of RF Subsystem TMA TMA DTRU DAFU TMA TMA DTRU DAFU Double transceiver subsystem DATU Um Interface DATU fiber E1 Abis Interface Common subsystem Metro 100 DTMU DEMU E1 BITS Monitor TBUS/DBUS/CBUS MS FH_BUS Extension cabinet DBUS/ TBUS CBUS CBUS3 CBUS3 CBUS3 CBUS3 CBUS2 CBUS2 CBUS2 CBUS3 CBUS3 Protection for signal Electric tilt antenna & TMA feed Electric tilt antenna & TMA feed Electric tilt antenna &TMA feed CBUS3 FH_BUS FH_BUS RF signal RF signal RF signal
  8. 8. BTS3012 Cabinet and Boards Double transceiver subsystem Common Subsystem Antenna Front-End of the RF Subsystem (DAFU) Cabinet Top Access Subsystem (DCTB) D D D D Wiring & Air Inlet Wiring D D P U D C O M D C O M D D P U D C O M D T R U D T R U D T R U D T R U D T R U D T R U Wiring FAN Air Inlet M L C Power and E MC Transmission Unit D D P U E L C E L C S A C Transmission Unit D T M U D T M U D E M U D C C U D C S U D A T U
  9. 9. BTS3012 Cabinet and Boards Double transceiver subsystem Common Subsystem Antenna Front-End of the RF Subsystem (DAFU) Cabinet Top Access Subsystem (DCTB) D D D D Wiring & Air Inlet Wiring D D P U D C O M D C O M D D P U D C O M D T R U D T R U D T R U D T R U D T R U D T R U Wiring FAN Air Inlet M L C Power and E MC Transmission Unit D D P U E L C E L C S A C Transmission Unit D T M U D T M U D E M U D C C U D C S U D A T U
  10. 10. Structure of DTMU MCK OML DBUS CBUS2 Clock BIU DTRU DTMU BSC MCU MMI LMT Abis External synchronized clock Subrack number and clock
  11. 11. Indicators on DTMU Indicator Color Description Status Meaning RUN Green Indicates operation Slow flash (0.25 Hz) OML is blocked Slow flash (0.5 Hz) Normal Fast flash at uncertain intervals BSC data loading Off Power failure of the board ACT Green Indicates whether the board is active or standby Off Standby On Active PLL Green Indicates the clock status Off Abnormal On Free-run Fast flash (4 Hz) Pull-in Fast flash (1 Hz) Lock LIU1 Green Indicates the transmission status of E1 port 1 and port 5 Off <ul><li>E1 port 1 is normal when SWT is out </li></ul><ul><li>E1 port 5 is normal when SWT is on </li></ul>On <ul><li>E1 port 1 near end alarm occurs when SWT is out </li></ul><ul><li>E1 port 5 near end alarm occurs when SWT is on </li></ul>Fast flash (4 Hz) <ul><li>E1 port 1 remote end alarm occurs when SWT is out </li></ul><ul><li>E1 port 5 remote end alarm occurs when SWT is on </li></ul>
  12. 12. Indicators on DTMU Indicator Color Description Status Meaning LIU2 Green Indicates the transmission status of E1 port 2 and port 6 Off <ul><li>E1 port 2 is normal when SWT is out </li></ul><ul><li>E1 port 6 is normal when SWT is on </li></ul>On <ul><li>E1 port 2 near end alarm occurs when SWT is out </li></ul><ul><li>E1 port 6 near end alarm occurs when SWT is on </li></ul>Fast flash (4 Hz) <ul><li>E1 port 2 remote end alarm occurs when SWT is out </li></ul><ul><li>E1 port 6 remote end alarm occurs when SWT is on </li></ul>LIU3 Green Indicates the transmission status of E1 port 3 and port 7 Off <ul><li>E1 port 3 is normal when SWT is out </li></ul><ul><li>E1 port 7 is normal when SWT is on </li></ul>On <ul><li>E1 port 3 near end alarm occurs when SWT is out </li></ul><ul><li>E1 port 7 near end alarm occurs when SWT is on </li></ul>Fast flash (4 Hz) <ul><li>E1 port 3 remote end alarm occurs when SWT is out </li></ul><ul><li>E1 port 7 remote end alarm occurs when SWT is on </li></ul>LIU4 Green Indicates the transmission status of E1 port 4 and port 8 Off <ul><li>E1 port 4 is normal when SWT is out </li></ul><ul><li>E1 port 8 is normal when SWT is on </li></ul>On <ul><li>E1 port 4 near end alarm occurs when SWT is out </li></ul><ul><li>E1 port 8 near end alarm occurs when SWT is on </li></ul>Fast flash (4 Hz) <ul><li>E1 port 4 remote end alarm occurs when SWT is out </li></ul><ul><li>E1 port 8 remote end alarm occurs when SWT is on </li></ul>SWT Green Indicates handover status of E1 Off LIU1 to LIU4 indicate the transmission status of E1 port 1 to 4. On LIU1 to LIU4 indicate the transmission status of E1 port 5 to 8. ALM Red Alarm indicators Off No hardware alarm On Hardware alarm
  13. 13. Functions of DEMU <ul><li>The DEMU is placed in slots 2 to 4 and slot 7 of the common subrack with the DATU. The DEMU is an optional module. There is maximum one DEMU under full configuration. </li></ul><ul><li>Monitoring variations in the smoke, water, temperature, humidity, infrared, and access control ,Handling alarms </li></ul><ul><li>Output of 6-route Boolean value and input of 32-route main node alarms </li></ul>DMLC DEMU CBUS3 Monitor signal
  14. 14. Functions of DCSU <ul><li>The Combined Cabinet Signal Connection Unit for DTRU BTS (DCSU) is placed in slot 5 of the common subrack, which is located in the lower part of the cabinet. There is only one DCSU and it is mandatory </li></ul><ul><li>The DCSU transfers signals for the combined cabinet and cabinet group between the common subrack and the cabinet top subrack </li></ul>DCMB DTMU DCSU DTRB DCTB DCCU DEMU DATU
  15. 15. Functions of DCCU <ul><li>The DCCU is placed in slot 6 of the common subrack. There is only one DCCU and it is mandatory </li></ul><ul><li>Converting the input and output signals of the common subrack. </li></ul><ul><li>Inputting the power of the common subrack </li></ul>DCMB DTMU DCCU NFCB DCTB DCSU DEMU DATU
  16. 16. The interfaces on the DCCU panel Silk-Screen Type Description TRAN MD64 (female) For E1 signal input To_FAN DB26 (female) Connects to the fan panel through cables TO_TOP1 MD64 (female) Connects to the cabinet top subrack through cables POWER 3V3 For power input of the common unit
  17. 17. Functions of DATU <ul><li>The DATU is placed in slots 2 to 4 and slot 7 of the common subrack with the DEMU. It is optional and there are maximum two DATUs </li></ul><ul><li>Transmitting the remote electrical tilt unit (RET) control signals </li></ul><ul><li>Feeding the TMA </li></ul><ul><li>Communicating with the DTMU through CBUS3 for control and alarm report </li></ul>
  18. 18. BTS3012 Cabinet and Boards Double transceiver subsystem Common Subsystem Antenna Front-End of the RF Subsystem (DAFU) Cabinet Top Access Subsystem (DCTB) D D D D Wiring & Air Inlet Wiring D D P U D C O M D C O M D D P U D C O M D T R U D T R U D T R U D T R U D T R U D T R U Wiring FAN Air Inlet M L C Power and E MC Transmission Unit D D P U E L C E L C S A C Transmission Unit D T M U D T M U D E M U D C C U D C S U D A T U
  19. 19. Cabinet Top Access Subsystem <ul><li>DMLC( Monitor Signal Lightning-Protection Card for DTRU BTS) </li></ul><ul><li>DELC(E1 Signal Lightning-Protection Card for DTRU BTS) </li></ul><ul><li>DSAC(Signal Access Card for DTRU BTS) </li></ul>D M L C D E L C D E L C D S A C DCF CKB2 CKB1
  20. 20. Function of DMLC <ul><li>The DMLC is placed in slots 0 to 2 of the cabinet top subrack with the DELC. There is only one DMLC and it is optional DMLC </li></ul><ul><li>Smoke/water/access control/infrared/humidity/temperature sensor signal input </li></ul>
  21. 21. Function of DELC <ul><li>The DELC is placed in slots 0 to 2 of the cabinet top subrack with the DMLC </li></ul><ul><li>The DELC is mandatory and there is one DELC under minimum configuration </li></ul><ul><li>Without the DMLC, there are maximum three DELCs, supporting up to 12 routes of protected E1 signals </li></ul>
  22. 22. Function of DSAC <ul><li>The DSAC is placed in slot 3 of the cabinet top subrack. There is only one DSAC and it is mandatory </li></ul><ul><li>Six-route Boolean value input. </li></ul><ul><li>Two-route CBUS3 output </li></ul><ul><li>Two-route input of lightning protection arrester failure alarm </li></ul><ul><li>Access protection of BITS clock input </li></ul>
  23. 23. BTS3012 Cabinet and Boards Double transceiver subsystem Common Subsystem Antenna Front-End of the RF Subsystem (DAFU) Cabinet Top Access Subsystem (DCTB) D D D D Wiring & Air Inlet Wiring D D P U D C O M D C O M D D P U D C O M D T R U D T R U D T R U D T R U D T R U D T R U Wiring FAN Air Inlet M L C Power and E MC Transmission Unit D D P U E L C E L C S A C Transmission Unit D T M U D T M U D E M U D C C U D C S U D A T U
  24. 24. Double transceiver subsystem <ul><li>DTRU ( Double Transceiver Unit ) </li></ul><ul><li>DTRB </li></ul>DTRB DTRU DTRU DTRU DTRU DTRU DTRU
  25. 25. Functions of DTRU <ul><li>RF subsystem transmit part. </li></ul><ul><li>RF subsystem receive </li></ul>
  26. 26. Functional structure of DTRU <ul><li>DTRU Baseband and RF Unit (DBRU) </li></ul><ul><li>DTRU Power Amplifier Unit (DPAU) </li></ul><ul><li>DTRU Power Supply Unit (DTPS) </li></ul>DTMU DTPS DTRU - 48V DC DPAU DBRU DAFU
  27. 27. Indicators on DTRU Indicator Color Description Status Meaning RUN Green Indicates the running and power-on of the DTRU On There is power supply or the board is faulty. Off There is no power supply and the board is faulty. Slow flash (0.25 Hz) The board is starting. Slow flash (0.5 Hz) The board is running. Fast flash (2.5 Hz) The DTMU is sending configuraiton parameters to the DTRU. ACT Green Indicates the TRX is working On The board is running (the DTMU sends configuration parameters to the DTRU correctly and the cell is starting). All the channels on the two carriers can work normally. Off Communication between DTRU and DTMU is not set up Slow flash (0.5Hz) Only parts of the logic channels are working normally (including after TRX mutual aid). ALM Red Indicates alarm On (including high-frequency flash) Critical alarm occurs to the board. Off The board is normal. RF_IND Red RF interface indicators On Standing wave alarm Off Normal Slow flash (0.5 Hz) RL alarm
  28. 28. Connectors on DTRU Interface Type Description TX1 N (male) <ul><li>TX1 output signals: </li></ul><ul><li>Output to the forepart of the RF when not in combiner </li></ul><ul><li>Output to IN1 in combiner </li></ul>IN1 SMA (female) Connects to TX1 in combiner TCOM N (male) Combines and outputs IN1 and IN2 or implements PBT combined output IN2 SMA (female) Connects to TX2 in combiner TX2 N (male) <ul><li>TX2 output signals: </li></ul><ul><li>Output to the forepart of the RF when not in combiner </li></ul><ul><li>Output to IN2 in combiner </li></ul>RXM1 SMA (female) Main or diversity 1 receive port of carrier 1 RXD1 SMA (female) Diversity 1 or 2 receive port of carrier 1 RXM2 SMA (female) Main receive port of carrier 2 or Diversity 3 receive port of carrier 1 RXD2 SMA (female) Diversity receive port of carrier 2 or Diversity 4 receive port of carrier 1 PWR 3V3 Power supply
  29. 29. DTRU transmit mode <ul><li>No combining </li></ul><ul><li>Diversity transmitter </li></ul><ul><li>Power booster technology </li></ul><ul><li>Wide band combining </li></ul>
  30. 30. No combining TCOM TRX0 TX TRX1 TX TX1 IN1 IN2 TX2 RXM1 RXD1 RXM2 RXD2 combiner
  31. 31. Diversity transmitter TRX1 TRX0 TX TX TX1 IN1 TCOM IN2 TX2 Man made multi way combiner
  32. 32. Power booster technology TRX1 TRX0 TX TX TX1 IN1 TCOM IN2 TX2 Same phase combiner
  33. 33. Wide band combining TRX0 TX TRX1 TX TX1 IN1 TCOM IN2 TX2 combiner
  34. 34. DTRU receive mode <ul><li>Independent receiver </li></ul><ul><li>Dividing receiver </li></ul><ul><li>Four diversity receiver </li></ul>
  35. 35. Independent receiver TRX1 TRX0 TX TX TX1 IN1 TCOM IN2 TX2 RXM1 RXD1 RXM2 RXD2 divider combiner divider
  36. 36. Dividing receiver TRX0 TX TRX1 TX TX1 IN1 TCOM IN2 TX2 RXM1 RXD1 RXM2 RXD2 combiner divider divider
  37. 37. Four diversity receiver TRX0 TX TRX1 TX divider divider TX1 IN1 TCOM IN2 TX2 RXM1 RXD1 RXM2 RXD2 combiner
  38. 38. Intra structure of DTRU TRX0 TX TRX1 TX TX1 IN1 TCOM IN2 TX2 RXM1 RXD1 RXM2 RXD2 combiner divider divider
  39. 39. Functions of DTRB <ul><li>The DTRB is placed in the DTRU subrack. It has six slots, each holding one DTRU </li></ul><ul><li>The DTRB provides connections between the DCSU and the DTRU. All the onsite signals are provided to the DCSU through the DTRB </li></ul>DTRB DTRU DTRU DTRU DTRU DTRU DTRU
  40. 40. BTS3012 Cabinet and Boards Double transceiver subsystem Common Subsystem Antenna Front-End of the RF Subsystem (DAFU) Cabinet Top Access Subsystem (DCTB) D D D D Wiring & Air Inlet Wiring D D P U D C O M D C O M D D P U D C O M D T R U D T R U D T R U D T R U D T R U D T R U Wiring FAN Air Inlet M L C Power and E MC Transmission Unit D D P U E L C E L C S A C Transmission Unit D T M U D T M U D E M U D C C U D C S U D A T U
  41. 41. Front-End of the RF Subsystem <ul><li>DDPU (Dual Duplexer Unit for DTRU BTS) </li></ul><ul><li>DCOM (Combining Unit for DTRU BTS) </li></ul>
  42. 42. Functions of DDPU <ul><li>The DDPU is intermixed with the DCOM in the DAFU subrack of the forepart of RF subsystem. It is indispensable. Generally, the number of DDPU is one at least and three at most. Without the DCOM, there can be at most six DDPUs </li></ul><ul><li>Sending multi RF signals from the transceiver in the DTRU to the antenna through the duplexer </li></ul><ul><li>Sending signals from the antenna after amplifying and quartering them to the transceiver in the DTRU </li></ul><ul><li>Detecting standing wave alarms in the Antenna Feeder system </li></ul><ul><li>Receiving the gain control of the low noise amplifier </li></ul>
  43. 43. Functional structure of the DDPU ANTB TXA TXB RXA4 duplexer divider duplexer divider ANTA RXA1 RXA2 RXA3 RXB1 RXB2 RXB3 RXB4
  44. 44. Functions of DCOM <ul><li>The DCOM is placed in the DAFU subrack with the DDPU </li></ul><ul><li>The DCOM is optional and there are a maximum three DCOMs. The DTRU combines two carriers into one channel. The DCOM is required when the DTRUs are insufficent </li></ul><ul><li>The DCOM combines the 2-route DTRU transmission signals and outputs them to the DDPU </li></ul>
  45. 45. Contents <ul><li>Overview </li></ul><ul><li>System Components </li></ul><ul><li>Signal Processing </li></ul><ul><li>Antenna and Feeder System </li></ul><ul><li>Typical Configuration </li></ul>
  46. 46. System Signal Flow <ul><li>the signal flow of the service and signaling include </li></ul><ul><ul><li>DL Signal Flow </li></ul></ul><ul><ul><li>UL Signal Flow </li></ul></ul><ul><ul><li>Signaling Processing Signal Flow </li></ul></ul><ul><ul><li>Clock Signal Flow </li></ul></ul>
  47. 47. DL Signal Flow DDPU Um BSC BTS3012 Cabinet MS Antenna Feeder Abis DTRU DTMU
  48. 48. DL Signal Flow <ul><li>The DL signal flow includes the following steps: </li></ul><ul><ul><li>The DTMU receives the service data from the BSC, exchanges and processes it, and then transfers it to the DTRU </li></ul></ul><ul><ul><li>The DTRU performs digital filtering, up conversion, and filter amplification of the signals and sends the signals to the DDPU </li></ul></ul><ul><ul><li>The duplexer in the DDPU filters the signals sent from the DTRU and transmits the signals through antennas and feeders </li></ul></ul>
  49. 49. UL Signal Flow DAFU Um BSC BTS3012 Cabinet MS Antenna Feeder Abis DTRU DTMU
  50. 50. UL Signal Flow <ul><li>The UL signal flow includes the following steps: </li></ul><ul><ul><li>The antenna receives the signals transmitted from the MS. After being amplified by the TMA, the signals are transmitted to the DDPU through the feeder.The TMA is optional. It is used to compensate the feeder loss and enhance receiver sensitivity of the DDPU antenna port </li></ul></ul><ul><ul><li>The DDPU receives the signals and transmits the signals to the DTRU after they are filtered by the duplexer and amplified by the LNA </li></ul></ul><ul><ul><li>The DTRU receives the signals and transmits the signals to the DTMU after amplification and down conversion. The DTMU then transmits the signals to the BSC through the Abis interface </li></ul></ul>
  51. 51. Signaling Processing Signal Flow BTS3012 DDPU DTRU DTMU BSC Abis
  52. 52. Signaling Processing Signal Flow <ul><li>The signaling processing signal flow includes the following steps: </li></ul><ul><ul><li>The Abis interface board receives the signaling data from the BSC and transmits the data to the DTMU </li></ul></ul><ul><ul><li>The DTMU performs decision and processing on the signaling and transmits the signaling to the DTRU and DDPU </li></ul></ul><ul><ul><li>The DTRU and DDPU report board status to the DTMU </li></ul></ul><ul><ul><li>The DTMU obtains the status of the BTS3012 by collecting and analyzing the status of all boards and transmits the information to the BSC through the Abis interface </li></ul></ul>
  53. 53. Clock Signal Flow DTMU Boards in main cabinet Boards in slave cabinet A-bis Clock distribution cable between cabinets
  54. 54. Clock Signal Flow Description <ul><li>The clock signal flow includes the following steps: </li></ul><ul><ul><li>The external reference clock is transmitted to the clock module in the DTMU through the Abis interface </li></ul></ul><ul><ul><li>The clock module performs phase lock and frequency division on the clock signals to generate different clock signals for BTSs </li></ul></ul><ul><ul><li>The clock signals are transmitted to the modules in the main cabinet such as the DTRU and the DDPU </li></ul></ul><ul><ul><li>The clock signals are transmitted to the modules in the slave cabinets through the clock distribution cable </li></ul></ul>
  55. 55. Contents <ul><li>Overview </li></ul><ul><li>System Components </li></ul><ul><li>Signal Processing </li></ul><ul><li>Antenna and Feeder System </li></ul><ul><li>Typical Configuration </li></ul>
  56. 56. Antenna Feeder subsystem Antenna Feeder Jumpers TMA
  57. 57. Antenna <ul><li>BTS3012 antennas are classified: </li></ul><ul><ul><li>By radiation features in horizontal directions: omnidirectional antennas and directional antennas </li></ul></ul><ul><ul><li>By polarization features: single polarization antennas and dual polarization antennas </li></ul></ul>
  58. 58. Lightning Arrester Lightning Arrester is used to prevent the equipment from being damaged by the lightening current inducted by the core line of the feeder f eeder jumper Lightning Arrester
  59. 59. Antenna Pattern <ul><li>The antenna pattern describes the radiating abilities of antennas in all directions </li></ul>Omni Antenna Directional antenna
  60. 60. Polarization <ul><li>Two main types of polarization </li></ul><ul><ul><li>Vertical polarization </li></ul></ul><ul><ul><li>Horizontal polarization </li></ul></ul><ul><li>The types of antenna divided by polarization </li></ul><ul><ul><li>Single polarized antenna </li></ul></ul><ul><ul><ul><li>Vertical polarization for GSM </li></ul></ul></ul><ul><ul><ul><li>One port for one feeder </li></ul></ul></ul><ul><ul><li>Dual polarized antenna </li></ul></ul><ul><ul><ul><li>+45 degree and -45 degree </li></ul></ul></ul><ul><ul><ul><li>Two ports for two feeders </li></ul></ul></ul>
  61. 61. Contents <ul><li>Overview </li></ul><ul><li>System Components </li></ul><ul><li>Signal Processing </li></ul><ul><li>Antenna and Feeder System </li></ul><ul><li>Typical Configuration </li></ul>
  62. 62. Configuration Principles <ul><li>The configuration principles of the BTS3012 cabinet are as follows: </li></ul><ul><ul><li>The minimum antenna rule </li></ul></ul><ul><ul><li>The minimum cabinet rule </li></ul></ul><ul><ul><li>The complete synchronous cell rule </li></ul></ul><ul><ul><li>The basic cabinet priority rule </li></ul></ul>
  63. 63. Typical configuration S1/1/1 ( Diversity transmitter ) <ul><li>S1/1/1 Diversity transmitter / Four diversity receiver mode , each cell is configured one DTRU and two DDPU </li></ul><ul><li>BSC data configuration should be </li></ul><ul><ul><li>Diversity transmitter mode </li></ul></ul><ul><ul><li>Four diversity receiver mode </li></ul></ul>DTRU DDPU TX B RXB1 RXA1 RXA2 RXA3 RXA4 RXB2 RXB3 RXB4 TX A DDPU TX B RXB1 RXA1 RXA2 RXA3 RXA4 RXB2 RXB3 RXB4 TX A TX 1 TCOM RXM 1 RXM 2 RXD 1 RXD 2 TX 2 IN2 IN 1
  64. 64. Typical configurationS2/2/2 ( No combining mode ) <ul><li>S2/2/2 transmit independence mode , each cell is configured one DTRU and one DDPU </li></ul><ul><li>The connection for one cell is showed in the right slide </li></ul><ul><li>BSC data configuration should be </li></ul><ul><ul><li>No combining mode </li></ul></ul><ul><ul><li>Dividing receiver mode </li></ul></ul>DDPU TX B RXB1 RXA1 RXA2 RXA3 RXA4 RXB2 RXB3 RXB4 TX A DTRU TX 1 TCOM RXM 1 RXM 2 RXD 1 RXD 2 TX 2 IN2 IN 1
  65. 65. Combined Cabinet Signal Cables <ul><li>The connection of the signal cables of the combined cabinet is as follows: </li></ul><ul><ul><li>The main and slave cabinets are connected by the data cables, control cables, and clock cables </li></ul></ul><ul><ul><li>The main and slave combined cabinets are connected by the clock cables and control cables </li></ul></ul><ul><ul><li>The main and slave cabinets and combined cabinets require the DIP switches </li></ul></ul>Slave cabinet of main cabinet group Main cabinet of main cabinet group Main cabinet of slave cabinet group Slave cabinet of slave cabinet group Data cable Clock cable Control cable Clock cable Control cable Data cable Clock cable Control cable
  66. 66. Thank You

×