EN/LZT 720 0229 Uen R2A ACCU-01 AC Connection Unit Unit Description The AC Connection Unit (ACCU) distributes primary power to the Power Supply Units (PSU).
ACCU-01 Contents 2 (6) 1 Product Overview 3 1.1 Main Functions 3 2 Dimensions 3 3 Function Description 3 4 Interfaces 3 4.1 Signal and Power Interfaces 4 4.
ACCU-01 1 Product Overview The ACCU distributes primary power to the PSUs. There is only one ACCU in the cabinet, depending on the type of incoming power. 1.1 Main Functions The ACCU has the following functions: 2 • Terminates incoming AC mains cables • Disconnects incoming AC mains power • Filters ElectroMagnetic Compatibility (EMC) Dimensions The physical characteristics of the ACCU are shown in the table below. Table 1 3 ACCU Size and Weight Height Width Depth Weight 293.
ACCU-01 ACCU P006805A Figure 1 ACCU Interfaces The ACCU has the following external interfaces: 4.1 • Terminal block for incoming AC mains cables • Four connection points for outgoing cables to the PSUs Signal and Power Interfaces Input Data The input data is shown in the table below. Table 2 4 (6) Input Data Frequency 50 – 60 Hz Voltage 120 – 250 AC nominal External Fuses 4 pcs, max. 16 A Cable Diameter 8.5 – 12.5 mm Conductor Area 1.5 – 2.
ACCU-01 Output Data Four cables with connectors (according to IEC 320) and for connection to the PSU AC inlet. 4.2 Operator Interface The operator interface is the mains switch on the ACCU.
ACCU-01 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 0230 Uen R2A ACCU-02 AC Connection Unit Unit Description The AC Connection Unit (ACCU-02) distributes and supervises the incoming AC mains power to the units in the RBS cabinet.
ACCU-02 Contents 2 (8) 1 Product Overview 3 1.1 Main Functions 3 2 Dimensions 3 3 Function Description 4 3.1 Connection Unit 4 3.2 Distribution Unit 5 4 Interfaces 5 4.1 Signal and Power Interfaces 5 4.
ACCU-02 1 Product Overview The ACCU-02 distributes and supervises the incoming AC mains power to the units in the RBS. The ACCU-02 consists of two units, that is a Connection Unit and a Distribution Unit. The units are connected together by a power cable and a signal cable. 1.
ACCU-02 3 Function Description EPC BUS PSU 4 PSU 3 PSU 2 PSU 1 Climate Unit Service outlet The ACCU-02 consists of two units, a Connection Unit and a Distribution Unit. Distribution Unit Control Board = = +24V DC AUX = EMC filter Connection Unit SPD Mains Switch +24V DC +24V DC Internal light AC Mains P008483B Figure 1 3.
ACCU-02 3.
ACCU-02 Table 4 Priority DC Supply to Control Unit Option Max. Current +24 V DC 1A Output Data The output data is summarised in the table below. Table 5 Output Voltage from the ACCU-02 180 – 275 V AC PSU 1 – 4 180 – 275 V AC Climate Unit (1) Service Outlet Same as input (line to neutral) (1) For different market standards. Note: Table 6 The DC output voltages require DC input voltage.
ACCU-02 4.2 Operator Interface The indicators are shown in the table below.
ACCU-02 Ericsson AB SE-164 80 Stockholm Sweden asq.us@ericsson.com 8 (8) 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 0484 Uen R1A ACCU-03 AC Connection Unit Unit Description The AC Connection Unit (ACCU) distributes primary power to the Power Supply Units (PSU).
ACCU-03 Contents 2 (4) 1 Product Overview 3 1.1 Main Functions 3 2 Dimensions 3 3 Function Description 3 4 Interfaces 3 4.
ACCU-03 1 Product Overview The ACCU distributes primary power to the PSUs. There is only one ACCU in the cabinet, depending on the type of incoming power. 1.1 Main Functions The ACCU has the following functions: 2 • Terminates incoming AC mains cables • Filters ElectroMagnetic Capability (EMC) Dimensions The dimensions of the ACCU are shown in the table below. Table 1 3 Size and Weight Height Width Depth Weight 293.
ACCU-03 4.1 • Terminal block for incoming AC mains cables • Two connection points for outgoing cables to the PSUs Signal and Power Interfaces Input Data The input data for the ACCU is summarised in the table below. Table 2 Input Data Frequency 50 – 60 Hz Voltage 120 – 250 AC nominal External Fuses 2 pcs, max. 16 A Cable Diameter 8.5 – 12.5 mm Conductor Area 1.5 – 2.
EN/LZT 720 0300 Uen R2A ADM-01 Auxiliary Distribution Module Description The Auxiliary Distribution Module (ADM-01) distributes DC power through circuit breakers to the Transport Module (TM) and to the DC-out 100 W in the RBS 2106.
ADM-01 Contents 2 (8) 1 Product Overview 3 1.1 Main Functions 3 2 Dimensions 3 3 Function Description 4 4 Interface 6 4.1 Signal and Power Interfaces 7 4.
ADM-01 1 Product Overview The ADM-01 distributes +24 V DC or -48 V DC to the TM compartment and to the DC-out 100 W connection in the Distribution Frame (DF) box. 1.
ADM-01 3 Function Description The circuit breaker diagram for the ADM-01 is shown in the figure below.
ADM-01 +24 V TM2 +24 V TM1 -48 V TM1 + TM2 OV (24 V) OV (48 V) 1 OV (24 V) +24 V/-48 V OV (48 V) DC out TM1 5 OV (24 V) +24 V/-48 V OV (48 V) 6 DC out TM2 10 +24 V DC +24 V DC Out 100 W -48 V DC P009814A Figure 1 ADM-01 Circuit Breaker Diagram EN/LZT 720 0300 Uen R2A 5 (8)
ADM-01 The ten outputs on the ADM-01 are divided into two groups: DC out TM1 and DC out TM2. The outputs are protected by circuit breakers that function both as fuses and manual disconnect switches. The ADM-01 can be fed with +24 V DC or -48 V DC, or both. The feed used is shown by two indicators on the front panel. One +24 V DC input is connected to the TM1 output group. The second +24 V DC input is connected to the TM2 output group.
ADM-01 ADM-01 6A Fuses -48VDC -48VDC In TM1 & TM2 Max total input power: 500W Max input power: +24VDC: 2x250W, -48VDC: 2x200W 24VDC + 48VDC + DC out TM1 24VDC + 48VDC + 24VDC + 48VDC + 24VDC + 48VDC + 24VDC + 48VDC + +24VDC In TM1 +24VDC In TM2 +24VDC 24VDC + 48VDC + On 6A 24VDC + 48VDC + DC out TM2 Off 24VDC + 48VDC + +24VDC Out 100 W 24VDC + 48VDC + 24VDC + 48VDC + Off -48V On +24V P009813A Figure 2 4.
ADM-01 Table 3 Input Power Nominal Voltages Input Power Input Fuse Rating +24 V DC 2 x 250 W 2 x 15 A -48 V DC 2 x 200 W 2 x 10 A +24 and -48 V DC 250 + 200 W 15 and 10 A Note: The total input power to the ADM-01 must not exceed 500 W. Output Data The output data is shown in the table below. Table 4 4.2 Output Connections Output Connection Fuse DC out TM1, pos. 1 – 5 Screw terminals 0.5 – 2.5 mm2 6A DC out TM2, pos. 1 – 5 Screw terminals 0.5 – 2.
EN/LZT 720 0232 Uen R2A ASU Antenna Sharing Unit Unit Description The Antenna Sharing Unit (ASU) is used in co-siting when a cabinet, operating on another standard, shares antennas with a GSM cabinet in the same sector. Ant. S1 CDU1 RX1 RX1 CXU RX2 CDU1 RX2 Ant. S2 Ant. S3 CDU2 RX1 RX1 CXU RX2 CDU2 RX2 Ant. S4 Ant. S5 CDU3 RX1 RX1 CXU RX2 CDU3 RX2 Ant.
ASU Contents 2 (8) 1 Product Overview 3 1.1 Main Functions 3 2 Dimensions 3 3 Power Consumption and Heat Generation 3 4 Function Description 4 4.1 RX Signal Path 4 4.2 Cable Path and Supervision 6 5 Interfaces 6 5.1 Signal and Power Interfaces 6 5.
ASU 1 Product Overview 1.1 Main Functions Antenna sharing is part of co-siting, that is using a cabinet operating on another standard together with a GSM cabinet in the same sector. It can also be used when sharing antennas with another GSM cabinet. The ASU allows a TDMA (or other) cabinet and a GSM cabinet to share RX antennas. It does this by sharing the RX signals between both cabinets. The ASU is a broadband product, which means that it covers 800 – 1910 MHz.
ASU 4 Function Description The general function of the ASU is to take a portion of the RX signal and send it to the co-sited RBS. The ASU also switches the attenuation according to whether or not a Tower Mounted Amplifier (TMA) is used. It also indicates the attenuation state through an indicator. Ant. S1 Coupler 1 CXU-RX1 (CDU1) CDU1-RX1 Ant. S2 Coupler 2 CXU-RX2 (CDU1) CDU1-RX2 Ant. S3 Coupler 3 CXU-RX1 (CDU2) CDU2-RX1 Ant. S4 Coupler 4 CXU-RX2 (CDU2) CDU2-RX2 Ant.
ASU TX/RX TX TX/RX CDU ASU CXU RXA TX RXB dTRU RBS 2206/2106 Co-sited RBS P008373A Figure 2 RX Signal Path The figure below shows an example of co-siting between two GSM cabinets.
ASU 4.2 Cable Path and Supervision The RF cables between the ASU and the co-sited RBSs can be supervised by the TMA support function in the corresponding cabinet. 5 Interfaces 5.
ASU Table 3 5.2 Connection Ports 5 CDU1 RX2 CDU 1, port RX2 QMA 6 Ant.S2 Antenna sharing connectors QMA 7 Ant.S3 Antenna sharing connectors QMA 8 CDU2 RX1 CDU2, port RX1 QMA 9 RX1 CXU port 9 QMA 10 RX2 CXU port 10 QMA 11 CDU2 RX2 CDU 2, port RX2 QMA 12 Ant.S4 Antenna sharing connectors QMA 13 Ant.S5 Antenna sharing connectors QMA 14 CDU3 RX1 CDU 3, port RX1 QMA 15 RX1 CXU port 15 QMA 16 RX2 CXU port 16 QMA 17 CDU3 RX2 CDU 3, port RX2 QMA 18 Ant.
ASU Ericsson AB SE-164 80 Stockholm Sweden asq.us@ericsson.com 8 (8) 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 0234 Uen R2A BFU-21 Battery Fuse Unit Unit Description The Battery Fuse Unit (BFU-21) monitors and controls the battery. It cuts off the load to the RBS at low battery voltage, when the temperature of the battery is too high or if there is a short circuit between the distribution cables.
BFU-21 Contents 2 (8) 1 Product Overview 3 1.1 Main Functions 3 2 Dimensions 3 3 Function Description 4 3.1 Contactor 4 3.2 Circuit Breaker 5 3.3 Shunt 5 3.4 TM and EC Supply 5 4 Interfaces 5 4.1 Signal and Power Interfaces 6 4.
BFU-21 1 Product Overview The BFU-21 supplies battery backup system voltage to the RBS and disconnects the battery when it has reached its lower discharge limit. The contactor can disconnect and reconnect the battery with a control signal from the Supervision Module (SM). 1.1 Main Functions The BFU-21 has the following functions: • Supplies priority power to transmission equipment. Power to transmission equipment can be distributed even if a battery is not present.
BFU-21 3 Function Description The block diagram of the BFU-21 is shown in the figure below. Circuit breaker Shunt Contactor 200A Battery RBS DC distribution TM and EC supply Relay 15A 15A 2A Supervision Module TM1 TM2 EC EPC bus (opto) P008643A Figure 1 Block Diagram of BFU-21 The BFU-21 consists of the following blocks: 3.
BFU-21 3.2 Circuit Breaker The circuit breaker disconnects the batteries if the current becomes too high. It can also be manually operated on the front of the BFU-21 to connect or disconnect the batteries from the DC distribution. 3.3 Shunt The shunt is used to sense the input current. The SM senses the value, which is used for control of the BFU-21. 3.
BFU-21 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 negative ground Permitted Variation Input Voltage +18.0 to +29.0 V DC Non-destruction Input Voltage 0.0 to +32.0 V DC Power 4800 W Nominal Input Current 185 A Maximum Input Current 205 A Maximum Current Ripple (20 Hz – 20 kHz) 24 Arms Output Data The output data is shown in the table below.
BFU-21 4.2 Operator Interface There are four indicators and four switches on the front panel, see the table and list below.
BFU-21 Ericsson AB SE-164 80 Stockholm Sweden asq.us@ericsson.com 8 (8) 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 0276 Uen R2A BFU-22 Battery Fuse Unit Unit Description The Battery Fuse Unit (BFU-22) monitors and controls the battery. It cuts off the load to the RBS at low battery voltage, when the temperature of the battery is too high or if there is a short circuit between the distribution cables.
BFU-22 Contents 2 (6) 1 Product Overview 3 1.1 Main Functions 3 2 Dimensions 3 3 Function Description 3 3.1 Contactor 4 3.2 Circuit Breaker 4 3.3 Shunt 5 3.4 TM Supply 5 4 Interfaces 5 4.1 Signal and Power Interfaces 5 4.
BFU-22 1 Product Overview The BFU-22 supplies battery backup system voltage to the RBS and disconnects the battery when it has reached its lower discharge limit. The contactor can disconnect and reconnect the battery with a control signal from the Supervision Module (SM). 1.1 Main Functions The BFU-22 has the following functions: • Supplies priority power to transmission equipment. Power to transmission equipment can be distributed even if a battery is not present.
BFU-22 Shunt Contactor 200A Battery RBS DC distribution TM and EC Contactor supply 50A Supervision Module TM EPC bus (opto) P008644B Figure 1 Block Diagram of BFU-22 The BFU-22 consists of the following blocks: 3.1 • Contactors • Circuit breakers • Shunt • Transport Module (TM) and EC supply • Supervision module Contactor The contactor is used to disconnect the batteries from the system. The SM controls the contactor. 3.
BFU-22 3.3 Shunt The shunt is used to sense the input current. The SM senses the value, which is used for control of the BFU-22. 3.4 TM Supply There is one high-power TM output for supply of transmission equipment. 4 Interfaces The BFU-22 has the following interfaces: 4.1 • Battery • RBS DC distribution • TM supply 50 A • EPC bus Signal and Power Interfaces Input Data The input data is shown in the table below.
BFU-22 Output Data The output data is shown in the table below. Table 3 4.2 Output Data RBS DC Distribution (Nominal) 160 A RBS DC Distribution (Maximum) 180 A (during a 3 hour period) TM Supply 40 A Operator Interface Indicators There are four indicators and four switches on the front panel , see the table and list below.
EN/LZT 720 0237 Uen R3A CDU-F Combining and Distribution Unit Description The Combining and Distribution Unit (CDU-F) is the interface between the TRansceiver Units (TRU) and the antenna system.
CDU-F Contents 2 (6) 1 Product Overview 3 1.1 Main Functions 3 1.2 Variants 3 2 Dimensions 3 3 Power Consumption and Heat Generation 3 4 Function Description 4 4.1 TX Part Description 4 4.
CDU-F 1 Product Overview This document describes the CDU-F. A range of CDU types have been developed to support different configurations. The choice depends on the operator’s initial and future requirements. The CDU-F handles one to six double TRansceiver Units (dTRU). It is used in high capacity, medium output power configurations. The CDU-F supports baseband frequency hopping. 1.1 Main Functions The CDU-F has the following main functions: 1.
CDU-F Table 2 4 Power Consumption and Heat Generation Max. Power Consumption Max. Heat Generation 70 W 70 W Function Description Prin1 Prin2 This section describes the functions of the TX and RX parts of the CDU-F. TX1-1 CNU TX1-1+TX1-2 TXLP FC TX1-2 MCU Pr1out Pr2out Pf1out Pf2out TXBP-DPX TX/RX TX2-1 RXBP-DPX RXBP TX2-1+TX2-2 TX2-2 MR RX2 RX1 LNA TXin CDU bus DC in Pfin1 Pfin2 CPU Power supply supervision RX DC CXU P007451B Figure 1 4.
CDU-F The Measurement Receiver (MR) and the Central Processor Unit (CPU) control the tuning of the filter cavities. A small part of the output and reflected power is distributed by the Measurement Coupler Unit (MCU) to four outputs. The signals are then connected to the MR in the same CDU-F, or the MR in another CDU-F, depending on the configuration. The MR measures the input signal to the filter combiners and also the outgoing signal to the antenna.
CDU-F CDU-F Fault Oper. Fault Oper. CNU P008386B Figure 2 CDU-F Front Panel Indicators The table below lists the various indicators on the CDU-F.
EN/LZT 720 0236 Uen R3A CDU-G Combining and Distribution Unit Description The Combining and Distribution Unit (CDU-G) is the interface between the TRansceiver Units (TRU) and the antenna system. CDU-G 900 Fault Oper.
CDU-G Contents 2 (6) 1 Product Overview 3 1.1 Main Functions 3 1.2 Variants 3 2 Dimensions 3 3 Power Consumption and Heat Generation 3 4 Function Description 4 4.1 TX part description 4 4.
CDU-G 1 Product Overview This document describes the CDU-G. A range of CDU types have been developed to support different configurations. The choice depends on the operator’s initial and future requirements. The CDU-G handles one or two double TRansceiever Units (dTRU). Connected to one dTRU, it provides a low capacity, high output power configuration. Connected to two dTRUs it provides a high capacity, low output power configuration. The CDU-G supports both synthesizer and baseband frequency hopping. 1.
CDU-G Table 2 4 Power Consumption and Heat Generation Max. Power Consumption Max. Heat Generation 30 W 30 W Function Description This section describes the functions of the TX and RX parts of the CDU-G. TXLP DPX Tx 1 MCU TX/RX 1 Filter unit 1 CDU Bus Rx 1 MR Rx 2 DC in Filter unit 2 TX/RX 2 Tx 2 TXLP MCU DPX P007449C Figure 1 4.1 Block Diagram of CDU-G TX part description A CDU-G consists of two identical TX chains (the top and bottom parts in the diagram above).
CDU-G 4.2 RX Part Description A CDU-G consists of two identical RX chains (the middle part in the above diagram). The RX part consists of a filter and a Low Noise Amplifier (LNA). The receiver filter is included in the duplex filter. Distribution of RX signals is performed in the CXU. 5 Interfaces The external interfaces of CDU-G are listed in the table below.
CDU-G CDU-G 900 Fault Oper. Fault Oper. CDU bus P008387A Figure 2 CDU-G Front Panel Indicators The table below lists the various indicators on the CDU-G.
EN/LZT 720 0469 Uen R1A CDU-J Combining and Distribution Unit Description The Combining and Distribution Unit (CDU) is the interface between the transceiver units (TRUs) and the antenna system.
CDU-J Contents 2 (6) 1 Product Overview 3 1.1 Main Functions 3 1.2 Variants 3 2 Dimensions 3 3 Power Consumption and Heat Generation 4 4 Function Description 4 4.1 TX Part Description 4 4.
CDU-J 1 Product Overview This document describes the CDU-J. A range of CDU types have been developed to support different configurations. The choice depends upon the operator’s initial and future requirements. The CDU-J handles one dTRU and provides a low capacity, high output power configuration. The CDU-J supports both synthesizer and baseband frequency hopping. 1.1 Main Functions The CDU-J has the following main functions: 1.2 • Enables connection of two transmitter (TX) signals to two antennas.
CDU-J 3 Power Consumption and Heat Generation Table 2 4 Power Consumption and Heat Generation Max Power Consumption Max Heat Generation 30 W 30 W Function Description This section describes the functions of the TX and RX parts of the CDU-J. TXLP DPX Tx 1 MCU TX/RX 1 Filter unit 1 CDU Bus Rx 1 MR Rx 2 DC in Filter unit 2 TX/RX 2 Tx 2 TXLP MCU DPX P007449C Figure 1 4.
CDU-J 4.2 RX Part Description A CDU-J consists of two identical RX chains – the middle part in the Figure 1 on page 4. The RX part consists of a filter and a low noise amplifier (LNA). The receiver filter is included in the duplex filter. The CDU-J has lower RX amplification than CDU-G. The CDU-J is used in RBSs without a Configuration Switch Unit (CXU). 5 Interfaces The external interfaces of CDU-J are listed in the table below.
CDU-J Figure 2 CDU-J Front Panel Indicators The table below lists the various indicators on the CDU-J. Table 4 Indicators on CDU-J Colour, Label Mode Indication Red, Fault Off No fault is localised in the unit. On One or more faults are localised in the unit. Flashing The unit has detected lost communication to a superior unit. Off The unit is not operational. On The unit is operational. Green, Operational Ericsson AB SE-164 80 Stockholm Sweden asq.us@ericsson.
EN/LZT 720 0239 Uen R2A Combined Climate Unit Unit Description The combined climate unit maintains internal cabinet temperature within the specified ranges for internal units. The combined climate unit is mounted in the door of the cabinet.
Combined Climate Unit Contents 2 (10) 1 Product Overview 3 1.1 Main Functions 3 2 Dimensions 3 3 Power Consumption 3 4 Function Description 3 4.1 Heat Exchanger 4 4.2 Active Cooler 5 4.3 Heater 5 4.4 CCU 6 4.5 DC/DC Converter 6 4.6 AC/DC Converter 6 4.7 Transformer 6 5 Interfaces 7 5.1 Signal and Power Interfaces 7 5.
Combined Climate Unit 1 Product Overview 1.1 Main Functions The main function of the combined climate unit is to provide the RBS 2106 cabinet with cooling or heating to maintain the operating temperature within specified limits. Variants The following variants exist: 2 • Manual voltage selection using the voltage selector switch • Automatic voltage selection (the voltage selector switch is excluded) Dimensions The physical characteristics of the combined climate unit are shown in the table below.
Combined Climate Unit Combined Climate Unit RBS CCU DC/DC AC/DC Transformer Return Air Sub Racks Heat Exchanger Heater Active Cooler Condensor Evaporator Supply Air P008419A Figure 1 Combined Climate Unit Block Diagram The combined climate unit consists of the following units: 4.
Combined Climate Unit The outside air circulates through one side of the heat exchanger and the inside air circulates through the other side. DC-powered fans force the air through the heat exchanger. The inside air is cooled by the outside air. 4.2 Active Cooler This unit consists of the following: • compressor • reducing valve • condenser • evaporator • AC-powered condenser fan The liquid coolant passes through a reducing valve, where it evaporates to a cold low-pressure gas.
Combined Climate Unit The heater is powered by mains voltage, and heats the inside air if the startup temperature inside the cabinet is below -5 C. The heater has a capacity of 2 kW. The CCU measures the return air temperature and controls the heater. 4.4 CCU The Climate Control Unit (CCU) is a processor-based plug-in unit, controlling and supervising the climate unit. The CCU provides the following main functions: 4.
Combined Climate Unit 5 Interfaces 5.1 Signal and Power Interfaces The combined climate unit has the following external interfaces: 5.2 • DC power • AC mains power • Environmental and Power Control (EPC) bus (on the CCU) • Test and general signals (25-pole D-sub on the CCU) Operator Interfaces The CCU operator interfaces are shown in the figure below.
Combined Climate Unit CCU FAUL T View of Backplane OPER ATION HEAT FAUL T INT.FA N EXT.F AN PWR.F AULT EPC BU S ACT.C OOLFAN ACT.C OOL TEST P008423A Figure 2 CCU Operator Interfaces The CCU front panel has the following Man-Machine Interfaces (MMI): • Indicators • Test button • Test and control connector Indicators The indicators are shown in the table below.
Combined Climate Unit Table 3 Indicators Indicator Colour CCU Fault Red Operation Green Heater fault Yellow Heat exchanger internal fan fault Yellow Heat exchanger external fan fault Yellow Power fault Yellow EPC bus fault Yellow Active cooler fan fault Yellow Active cooler fault Yellow Manual Voltage Selector The figure below shows the combined climate unit with a manual voltage selector switch.
Combined Climate Unit Ericsson AB SE-164 80 Stockholm Sweden asq.us@ericsson.com 10 (10) 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 0240 Uen R2A CXU-10 Configuration Switch Unit Unit Description The Configuration Switch Unit (CXU-10) distributes the Reciever (RX) signals from the Combining and Distribution Unit (CDU) to the double TRansceiver Unit (dTRU) within the same RBS.
CXU-10 Contents 2 (6) 1 Product Overview 3 1.1 Main Functions 3 2 Dimensions 3 3 Power Consumption 3 4 Function Description 3 4.1 Functions 4 5 Interfaces 5 5.1 Signal and Power Interfaces 5 5.
CXU-10 1 Product Overview The CXU-10 cross-connects the CDU and the dTRU in the RX path. The CXU-10 makes it possible to expand or reconfigure a cabinet with minimum movement or replacment of RX cables. The CXU is a multi-band product for GSM 800, GSM 900, GSM 1800 and GSM 1900. 1.
CXU-10 CXU CDU bus Powersupply RX1_TRU1 RX2_TRU1 RX1_CDU1 RX2_CDU1 RX1_TRU2 RX2_TRU2 RX1_CDU2 RX1_TRU3 RX2_TRU3 RX2_CDU2 RX1_TRU4 RX2_TRU4 RX1_TRU5 RX2_TRU5 RX1_CDU3 RX2_CDU3 RX1_TRU6 RX2_TRU6 P007459A Figure 1 4.1 Block Diagram of the CXU-10 Functions The CXU has six different switches. By setting the switches in different positions, the CXU can be configured to connect radio signals from a specific CDU to a specific RX input on a dTRU. The CXU is also connected to a CDU bus.
CXU-10 5 Interfaces 5.1 Signal and Power Interfaces The connectors are shown in the table below. Table 2 5.2 Connectors Function Quantity Input for RX signal from CDU 6 Output for RX signal to dTRU 12 CDU Bus connector for alarm and configuration setting 1 Power supply connector 1 Operator Interface The indicators are shown in the table below.
CXU-10 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.
