EN/LZT 720 0311 Uen R2A Heat Exchanger Climate Unit Climate Unit for RBS 2106 Unit Description The Heat Exchanger Climate Unit heats or cools the RBS 2106 in order to keep the cabinet’s operating temperature within specified limits. The unit contains a heat exchanger, a heater, air-ducts and fans.
Heat Exchanger Climate Unit Contents 2 (8) 1 Product Overview 3 1.1 Main Functions 3 2 Dimensions 3 3 Power Consumption 3 4 Function Description 3 4.1 Heat Exchanger 5 4.2 Heater 5 4.3 CCU 5 4.4 AC/DC Converter 6 4.5 Autotransformer 6 5 Interfaces 7 5.1 Signal and Power 7 5.
Heat Exchanger Climate Unit 1 Product Overview 1.1 Main Functions The Heat Exchanger Climate Unit maintains the cabinet operating temperature within specified limits by heating or cooling. 2 Dimensions The physical characteristics of the Heat Exchanger Climate Unit are shown in the table below.
Heat Exchanger Climate Unit Heat Exchanger RBS CCU DC/DC AC/DC Transformer Return Air Sub Racks Heat Exchanger Heater Supply Air P008418A Figure 1 Block Diagram The Heat Exchanger Climate Unit consists of the following units: 4 (8) • Heat exchanger • Heater • Climate Control Unit (CCU) • AC/DC Converter • Transformer EN/LZT 720 0311 Uen R2A
Heat Exchanger Climate Unit 4.1 Heat Exchanger The heat exchanger consists of a cross-flow heat exchanger and internal and external air circuit fans. Outside (ambient) air is forced through one side of the heat exchanger by DC-powered fans. Once there it cools the inside air, which circulates through the other side of the heat exchanger. Ambient air is used on the ’cool’ side of the heat exchanger, and therefore cooling capacity is limited to the temperature outside the cabinet.
Heat Exchanger Climate Unit • AC power • Fans • Temperature sensors • Other equipment The front panel contains the following: 4.4 • Indicators • Connectors for the Environmental and Power Control (EPC) bus • Connectors for test and control AC/DC Converter The AC/DC converter is used when +24 V DC power supply is shut off. It changes the mains voltage to +24 V DC to supply the internal air circuit fan, the external circuit fan in the heat exchanger, and the CCU. 4.
Heat Exchanger Climate Unit 5 Interfaces 5.1 Signal and Power The Heat Exchanger Climate Unit has the following external interfaces: 5.
Heat Exchanger Climate Unit EPC Bus Connectors The EPC bus is an optional communication bus used for RBS communication. Table 4 EPC Bus Connectors Connector Function TD Transmit RD Receive Test Button The test button on the front panel of the CCU activates the test function. After the test has been completed, the indicators present the status for two minutes. No alarm is sent if there is a malfunction. The total test time is approximately 6.5 minutes.
EN/LZT 720 0247 Uen R2A IDM Internal Distribution Module Unit Description The Internal Distribution Module (IDM) distributes +24 V DC to all DC-powered units in the RBS. IDM-0 1 DC ou t Clim ate 15A 30A Fan 1 5A Fan 2 5A Fan 3 5A Fan4 5A TRU 1 30A TRU 2 30A CDU 1 5A TRU 3 30A TRU 4 30A CDU 2 5A TRU 5 30A TRU 6 30A CDU 3 CXU 1-2 5A DXU/S DXU 5 ys. OX U1 Volt.S ens.
IDM Contents 2 (6) 1 Product Overview 3 1.1 Main Functions 3 2 Dimensions 3 3 Function Description 3 4 Interface 3 4.1 Signal and Power Interfaces 3 4.
IDM 1 Product Overview The IDM distributes +24 V DC to all DC powered units in the RBS. Distribution circuits are protected by circuit breakers. 1.1 Main Functions The IDM consists of a unit with 21 circuit breakers, four PSU cables and connectors to the different DC powered units. 2 Dimensions The physical characteristics of the IDM are shown in the table below.
IDM Table 2 Input Data Nominal Input Voltage Range 24 V DC Input Voltage +20.0 to +29.0 V DC Non-destructive Range 0.0 to +32.0 V DC Input Power 4800 W Output Data The maximum voltage drop from the input to the output of the IDM is 0.3 V DC.
IDM Power Distribution Connectors The connectors are shown in the table below. Table 4 4.2 Connectors Connector Function P3 DC out P4 Climate unit P5 Fan 1 – 4 P6 TRU 1 P7 TRU 2 P8 CDU 1 P9 TRU 3 P10 TRU 4 P11 CDU 2 P12 TRU 5 P13 TRU 6 P14 CDU 3 P15 CXU 1 P16 CXU 2 P17 OXU 5 P18 DXU/System voltage sensor/OXU 1 – 4 P19 Test connector P20 Indicator Operator Interface Indicator The indicator is shown in the table below.
IDM Ericsson AB SE-164 80 Stockholm Sweden asq.us@ericsson.com 6 (6) No part of this document may be reproduced in any form without the written permission of the copyright owner. The contents of this document are subject to revision without notice due to continued progress in methodology, design and manufacturing. Ericsson shall have no liability for any error or damage of any kind resulting from the use of this document.
EN/LZT 720 0380 Uen R1B IDM-02 Internal Distribution Module Unit Description The Internal Distribution Module (IDM-02) distributes +24 V DC power supply to all DC powered units in the RBS. Operation al Sys.
Internal Distribution Module IDM-02 Contents 2 (6) 1 Product Overview 3 1.1 Main Functions 3 2 Dimensions 3 3 Function Description 3 4 Interface 3 4.1 Signal and Power Interfaces 3 4.
IDM-02 1 Internal Distribution Module Product Overview The IDM-02 distributes +24 V DC power supply to all DC-powered units in the RBS. Distribution circuits are protected by circuit breakers. 1.1 Main Functions The IDM consists of a unit and the following: 2 • Seven circuit breakers • Two Power Supply Unit (PSU) cables • Connectors to the different DC powered units Dimensions The physical characteristics of the IDM-02 are shown in the table below.
Internal Distribution Module Table 2 IDM-02 Input Data Nominal Input Voltage Range 24 V DC Non-destructive Voltage 0.0 – 32.0 V DC Output Data The output data for the IDM-02 is shown in the table below. Table 3 IDM-02 Circuit Breaker Capacity Circuit Breaker Capacity Quantity Fan 1 – 2 5A 1 Fan 3 – 4 5A 1 DXU 5A 1 TMA-CM 5A 1 TRU 1, CDU 1 30 A 1 TRU 2, CDU 2 30 A 1 TRU 3, CDU 3 30 A 1 Power Distribution Connectors The connectors for the IDM-02 are shown in the table below.
IDM-02 4.2 Internal Distribution Module Operator Interface Indicator The indicator for the IDM-02 is shown in the table below.
Internal Distribution Module Ericsson AB SE-164 80 Stockholm Sweden implementation.GSMsupport@era.ericsson.se 6 (6) IDM-02 No part of this document may be reproduced without the written permission of the copyright owner. The contents of this document are subject to revision without notice due to continued progress in methodology, design and manufacturing. Ericsson shall have no liability for any error or damages of any kind resulting from the use of this document.
EN/LZT 720 0249 Uen R2A PSU AC Power Supply Unit Unit Description This document describes the function of the Power Supply Unit AC (PSU AC). PSU-AC OUTPUT +27.
PSU AC Contents 2 (6) 1 Product Overview 3 1.1 Main Functions 3 2 Dimensions 3 3 Power Consumption and Heat Genereation 3 4 Function Description 3 4.1 Input Filter 4 4.2 Bridge 4 4.3 Boost Converter 4 4.4 DC/DC Converter 4 4.5 Output Filter 4 5 Interfaces 4 5.
PSU AC 1 Product Overview The PSU AC converts incoming AC power to DC. The PSU AC rectifies the incoming AC power and delivers 1200 W power over the whole output range from 22 – 29 V DC. 1.1 Main Functions The PSU AC does the following: 2 • Communicates with the Distribution Switch Unit (DXU) • Adjusts voltage • Performs sharing between parallel units • Indicates alarms Dimensions The physical characteristics of the PSU AC are shown in the table below.
PSU AC 4.1 • Output filter (EMC filter) • Control and supervision circuits Input Filter The incoming sine voltage first passes through an internal fuse and then the input filter, where it is filtered to prevent unwanted signals from being radiated from the PSU AC. 4.2 Bridge The bridge rectifies the incoming AC. 4.
PSU AC Table 3 Input Data Nominal Input Voltage 120 – 250 V AC Frequency 45 – 65 Hz Non-destructive Voltage 0 – 300 V AC Output Data The output data for the PSU AC is shown in the table below. Table 4 Output Data Nominal Output Data 24 V DC Default Output Voltage 27.2 V DC Voltage Range 22.0 – 29.0 V DC Output Power 1200 W Note: The PSU AC does not have any backplane connections. Indicators The indicators for the PSU AC are shown in the table below.
PSU AC Ericsson AB SE-164 80 Stockholm Sweden asq.us@ericsson.com 6 (6) No part of this document may be reproduced in any form without the written permission of the copyright owner. The contents of this document are subject to revision without notice due to continued progress in methodology, design and manufacturing. Ericsson shall have no liability for any error or damage of any kind resulting from the use of this document.
PSU DC Power Supply Unit Unit Description This document describes the function of the Power Supply Unit DC (PSU DC). PSU-DC OUTPUT +27.
Contents 2 (6) 1 Product Overview 3 1.1 Main Functions 3 2 Dimensions 3 3 Power Consumption and Heat Genereation 3 4 Function Description 3 4.1 Input Filter 4 4.2 DC/DC Converter 4 4.3 Output Filter 4 5 Interfaces 4 5.1 Signal and Power Interfaces 4 5.
1 Product Overview The PSU DC converts incoming voltage ranging from -39 to -72 V DC to the regulated DC voltage of 27.2 V DC. The maximum output power is 1200 W. 1.1 Main Functions The PSU DC has the following functions: 2 • Communicates with the Distribution Switch Unit (DXU) • Indicates alarms Dimensions The physical characteristics of the PSU DC are shown in the table below. Table 1 3 PSU DC Dimensions Height Width Depth Weight 262 mm 61 mm 225 mm 3.
4.1 Input Filter The incoming voltage first passes through the input filter (EMC filter), where it is filtered to prevent unwanted signals from being radiated from the PSU DC. 4.2 DC/DC Converter The DC/DC converter is a phase-shifted, full-bridge converter that converts the DC voltage into a square wave. This is then fed into the primary side of the transformer. The converter limits the current in case of overload. In the transformer, the voltage is converted to a 24 V AC square wave.
Table 4 5.2 Output Data Default Output Voltage +27.2 V DC Output Power 1200 W Operator Interface The PSU DC has the following interfaces, all located on the front panel: • Power supply DC • Power control bus (opto) Indicators The indicators for the PSU DC are shown in the table below.
Ericsson AB SE-164 80 Stockholm Sweden asq.us@ericsson.com 6 (6) No part of this document may be reproduced in any form without the written permission of the copyright owner. The contents of this document are subject to revision without notice due to continued progress in methodology, design and manufacturing. Ericsson shall have no liability for any error or damage of any kind resulting from the use of this document.
EN/LZT 720 0250 Uen R2A TMA-CM Tower Mounted Amplifier - Control Module Unit Description The Tower Mounted Amplifier Control Module (TMA-CM), together with the bias injectors, supplies power to the TMA. It also monitors and controls the TMAs. TMA CM-01 Fault Oper. TMA oper.
TMA-CM Contents 2 (6) 1 Product Overview 3 1.1 Main Functions 3 2 Dimension 3 3 Function Description 3 4 Interface 5 4.1 Signal and Power Interfaces 5 4.
TMA-CM 1 Product Overview 1.1 Main Functions The TMA-CM has the following functions: 2 • Supplies power to the TMAs through bias injectors • Monitors the TMAs • Controls the TMAs • Supplies power for up to six TMAs • Measures DC and voltage • Supervises indicators • Provides short circuit protection • Supervises cables Dimension The physical characteristics of the TMA-CM are shown in the table below.
TMA-CM IOM Bus Indicator Control TMA Support x x x x x x x x Fault Oper. TMA1 TMA2 TMA3 TMA4 TMA5 TMA6 DC/DC Converter Indicators TMA1 TMA2 TMA3 TMA4 TMA5 TMA6 Measurement +24V DC P008456B Figure 1 TMA-CM Block Diagram The TMA-CM supplies up to six TMAs with 15 V DC and a maximum of 500 mA to each TMA. The power output is a 15-pole D-sub connector on the front of the TMA-CM. In general a TMA consumes 70 – 200 mA.
TMA-CM 4 Interface 4.1 Signal and Power Interfaces Input Data The input data is shown in the table below. Table 2 Input Data Nominal Input Voltage +24 V DC Input Voltage Range +20.0 to 29.5 V DC Non-destructive Voltage 0 to +32 V DC Maximum Input Power 60 W Output Data The output data is shown in the table below. Table 3 Output Data (1) Voltage per Output (1 – 6) +15 V DC Current per Output Maximum 500 mA (1) Tolerance ±1.0 V at TMA Current 0 – 300 mA. Tolerance ±1.
TMA-CM Indicators The TMA-CM has eight indicators on the front panel that show the status of each TMA and the status of the TMA-CM. The Fault and Operational indicators show the status of the TMA-CM only, and not the status of the TMAs. Table 4 Ericsson AB SE-164 80 Stockholm Sweden asq.us@ericsson.
EN/LZT 720 0283 Uen R1B RBS 2000 Glossary This document provides a glossary of terms and abbreviations used in RBS 2000 Customer Product Information (CPI).
Glossary RBS 2000 Contents 2 (24) 1 Introduction 3 2 Terms and Abbreviations 3 EN/LZT 720 0283 Uen R1B
RBS 2000 1 Glossary Introduction This glossary lists abbreviations and acronyms used in texts dealing with RBS 2000 cabinets. Some basic terms and acronyms needed for cross-reference are included in the list. An arrow ⇒ is used to indicate a reference to another entry in the list. Where there are several meanings for the same term and the terms are cabinet size dependent, this is indicated using Macro and Micro where applicable..
Glossary 4 (24) RBS 2000 ACB Alarm Collection Board ACCU Alternating Current Connection Unit ACCU-CU ACCU Connection Unit ACCU-DU ACCU Distribution Unit A/D converter Analog to Digital converter AFS AMR Full-rate speech AGW Abis Gateway AHR AMR Half-rate speech Air conditioner One version of the climate unit (Active cooler) AIS Alarm Indication Signal ALBO Automatic Line Build Out ALNA Antenna Low Noise Amplifier ALPU Antenna Lightning Protection Unit AMR Adaptive Multi-Rate A
RBS 2000 Glossary AU Antenna Unit GSM 900 = CEU + Passive Antenna GSM 1800/1900 = AAU BALUN BALance and UNbalance transformer Batt Battery BB Battery Box BBS Battery Back-up System BCCH Broadcast Control CHannel Downlink only broadcast channel for broadcast of general information at a base station, on a base station basis. BCS Block Check Sequence BDM Battery Distribution Module The BDM is an IDM with a battery and a local processor.
Glossary RBS 2000 BSCSim Base Station Controller Simulator BSS Base Station System GSM network logical unit comprising one BSC and one or more BTSs. BTS Base Transceiver Station GSM network unit operating on a set of radio frequency channels in one cell. burst A portion of digital information, the physical content, that is transferred within the time interval of one time slot. cabinet The physical housing of a base station Cascade connections Connection of several cabinets by the PCM cable.
RBS 2000 Glossary CEU Coverage Extension Unit CF Central Functions channel The common term channel denotes the virtual connection, consisting of physical and logical channels, between BSS and MS, during a call in progress. ⇒ Logical Channel ⇒ Physical Channel Channel Combination A physical channel on an air interface carrying a defined set of logical channels. Channel group A channel group is a group of dedicated logical channels to a specific MS.
Glossary RBS 2000 CPU Central Processing Unit CRC Cyclic Redundancy Check CS Coding Scheme CSA Canadian Standards Association CSES Consecutive Severely Errored Second CSU Macro = Channel Service Unit Micro = Customer Service Unit CU Combining Unit (RU in CDU_D) CXU Configuration Switch Unit Dannie ASIC in the TRU DB DataBase DC Direct Current DCC Digital Cross Connector DCCH Dedicated Control CHannel Dedicated control channels carry signalling data.
RBS 2000 Glossary DM Distribution Module DM Micro = Differential Mode DMRU Distributed Main Replaceable Unit If a Main RU is subordinated to the CMRU, it is said to be distributed. downlink Signalling direction from the system to the MS.
Glossary RBS 2000 EACU External Alarm Connection Unit EC1 External Condition Map Class 1 EC2 External Condition Map Class 2 ECU Energy Control Unit EDGE Enhanced Data rate for Global Evolution EDGE dTRU EDGE double TRansceiver Unit ⇒ EDGE EDT Electrical Down Tilt EEPROM Electrically Erasable Programmable Read-Only Memory EIRP Effective Isotropic Radiated Power EMC ElectroMagnetic Compatibility EMF ElectroMotive Force EMF ElectroMagnetic Field EMI Electromagnetic Interference ENV
RBS 2000 Glossary FCC Federal Communications Commission FCCH Frequency Correction CHannel FCOMB Filter COMBiner FCU Fan Control Unit FDL Facility Data Link FDU Feeder Duplexer Unit FER Frame Erasure Ratio FIU Fan Interface Unit FS Function Specification FSC Field Support Centre FU Filter Unit (RU in CDU-D) FUd Filter Unit with duplexer (RU in CDU-D) FXU Future Expansion Unit G01 MO model for RBS 200 G12 MO model for RBS 2000 G.
Glossary RBS 2000 GSM 800 GSM system 800 MHz (generic) GSM 900 GSM system 900 MHz (generic) GSM 1800 GSM system 1800 MHz (generic) GSM 1900 GSM system 1900 MHz (generic) HCE HDSL Central Equipment HCOMB Hybrid COMBiner HDLC High level Data Link Control HDSL High bit rate Digital Subscriber Line Heat Exchanger A version of the climate unit HEU Heat Exchanger Unit HISC Highway Splitter Combiner HLIN High Level IN HLOUT High Level OUT HMS Heat Management System Hum Humidity HW
RBS 2000 Glossary ID IDentification IDB Installation DataBase IDM Internal Distribution Module IEC International Electric Commission IF Box Interface Box IMSI International Mobile Subscriber Identity INIT Initial INT Internal IOG Input/Output Group IOM Internal Operation and Maintenance bus IR InfraRed IS Interface Switch IWD InterWork Description JTC Joint Technical Committee LAN Local Area Network LAPD Link Access Procedures on D-channel LAPD is the data link layer (layer
Glossary RBS 2000 Local mode When the RU is in Local mode, it is not communicating with the BSC. Local/Remote switch A switch used by the operator to order the RU to enter Local or Remote mode. LOF Loss Of Frame Logical Channel A logical channel represents a specified portion of the information carrying capacity of a physical channel.
RBS 2000 Glossary MCB MultiCasting Box MHS Modification Handling System Ericsson trouble report database MMI Man-Machine Interface MO Managed Object MR Measurement Receiver MRT Mean Repair Time MS Mobile Station MSC Mobile services Switching Centre GSM network unit for switching, routing and controlling calls to and from the Public Switched Telephone Network (PSTN) and other networks.
Glossary RBS 2000 O&M Operation and Maintenance General term for activities such as configuration, utilization of channels (frequency bands), cell planning, system supervision, hardware and software maintenance, subscriber administration, and so on. OMC Operation and Maintenance Centre OML Operation and Maintenance Link Layer 2 communication link for operation and maintenance services on Abis.
RBS 2000 Glossary PCH Paging CHannel Downlink only subchannel of CCCH for system paging of MSs. ⇒ CCCH PCM Pulse Code Modulation PCU Packet Control Unit PDCH Packet Data Channel PE terminal Protective Earth terminal in an AC mains connection PFWD Power Forward Physical Channel An air interface physical channel carries one or more logical channels.
Glossary RBS 2000 RACH Random Access CHannel Uplink only subchannel of CCCH for MS request for allocation of a dedicated channel. ⇒ CCCH RAI Remote Alarm Indication RAM Random Access Memory RBER Radio Bit Error Ratio RBS Radio Base Station All equipment forming one or more Ericsson base station. ⇒ BTS RCB Radio Connection Box RD Receive Data Remote mode When the RU is in RU Remote mode, a link is established between the BSC and the Central Main RU (CMRU).
RBS 2000 Glossary RTN Return RU Replaceable Unit An RU consists of one or more HWUs. An RU may be replaced by another RU of the same type. The RU is the smallest unit that can be handled on site. RX Receiver RX1 Receiver antenna branch 1 RX2 Receiver antenna branch 2 RXA Receiver antenna branch A RXB Receiver antenna branch B RXD Receiver Divider RXDA Receiver Divider Amplifier RXDP Receiver Distribution Plane RXLEV Measure of signal strength as defined in GSM:05.08:8.1.
Glossary RBS 2000 SIR Small Indoor RBS SMS Short Message Service (point to point) A short message, up to 160 alphanumeric characters long, can be sent to or from an MS (point to point). SO Service Object SS Swedish Standard Sub-RU A sub-replaceable unit is always connected to a superior Main RU. This connection is used for example for retrieval of the RU identity. A sub-RU normally does not have a processor. Note that an RU with a processor, which cannot be loaded, is classified as a sub-RU.
RBS 2000 Glossary TD Transmit Data TDMA Time Division Multiple Access Multiplexing of several channels in a common frequency band. Each channel is assigned a certain time division, a time slot. TDMA frame GSM air interface time frame comprising eight time slots. TEI Terminal Endpoint Identifier TEI is an identification code carried by a LAPD frame as a terminal connection endpoint within a Service Access Point (SAP).
Glossary RBS 2000 TRA Transcoder Rate Adapter The TRA Unit (TRAU) in BSC performs transcoding of speech information and rate adaptation of data information. Tracy ASIC in the TRU TRS Transceiver System TRU Transceiver Unit TRX Transceiver (combined transmitter and receiver) TRXC Transceiver Controller TS Time Slot A 0.577 ms period (TDMA frame subunit) corresponding to 156.25 raw bits of information. The eight time slots of each TDMA frame are numbered 0...7.
RBS 2000 Glossary X bus The X bus carries transmit air data frames between transceivers. Y link The interface between the DXU and each DSP System in core based TRUs.
Glossary Ericsson AB SE-164 80 Stockholm Sweden implementation.GSMsupport@era.ericsson.se 24 (24) RBS 2000 The contents of this document are subject to revision without notice due to continued progress in methodology, design and manufacturing. Ericsson shall have no liability for any error or damages of any kind resulting from the use of this document.
