RBS 2308 and RBS 2309 User’s Guide Taking the RBS Out of Operation Note: If the PIB is mounted in an extension cabinet, only that cabinet needs to be taken out of operation. 1. Open the sunshields. 2. Contact the OMC operator to obtain permission to temporarily take cells out of service. Wait until the RF off indicator shows a constant light. 3. Press the Local/Remote button on the IXU to set the RBS to local mode.
RBS 2308 and RBS 2309 User’s Guide 7. Remove the MBU cover. RRU 1 0 AC DC 1 1 0 0 P010371A 8. Disconnect the upper AC/DC cables and the applicable power cable at the bottom. P010372A 9. Remove the PIB after loosening the securing screws.
RBS 2308 and RBS 2309 User’s Guide Note: Be careful not to drop the washer attached behind the lower left screw when loosening it. 10. Insert the new PIB and secure it. 11. Ensure that the ground selector switch is in the correct position. Note: Remember to insert the washer behind the lower left screw. 12. Reconnect the upper AC/DC cables. 13. Reconnect the applicable AC/DC cable at the bottom. 14. Reconnect the protection earth cable. 15. Refit the cover. 16.
RBS 2308 and RBS 2309 User’s Guide Taking the RBS Out of Operation 1. Open the sunshields. 2. Contact the OMC operator to obtain permission to take cells out of service temporarily. Wait until the RF off indicator on all RRU interface panels shows a constant light. 3. Press the Local/Remote button on the IXU to set the RBS to local mode. Wait until the local indicator on the IXU shows a constant light. 4. Open the two clasps and pull the RRU to the left to gain access to the power switches.
RBS 2308 and RBS 2309 User’s Guide 5. Switch off the AC power and DC power. AC DC P010517A Replacing the PSTU 6. Open the IXU cover.
RBS 2308 and RBS 2309 User’s Guide 7. Remove the Ethernet cable connectors from the PSTU. The optical connectors must be protected with connection covers. P015756A P015757A 8. Loosen the four screws and remove the PSTU. See figure below.
RBS 2308 and RBS 2309 User’s Guide T20 Torx 4 1.7 Nm ±10% P015875A Figure 86 9. Note: PSTU Removal Put back the new PSTU. Tighten the screws to 1.7 Nm. Do not connect the Ethernet cable connectors to the PSTU yet. If the PSTU contains a configuration from previous use, then connecting the Ethernet cables can generate conflicting IP traffic. 10. Switch on the AC power and DC power. 11. Put the PSTU into remote operation. See chapter PSTU Startup. Putting the RBS into Operation 234 12.
RBS 2308 and RBS 2309 User’s Guide Handling Replaced Units The PSTU should be returned to Ericsson for repair with a repair delivery note, LZF 084 84 (Blue Tag) attached. Include a clear description of the fault found. See Section 10.6 Returning Hardware on page 255 for instructions on completing a repair delivery note. 10.5.8 Replacing an RRU This section describes how to replace a faulty RRU. Note: Do not touch the RBS when any indicators are double-flashing. See Section 10.4.
RBS 2308 and RBS 2309 User’s Guide 5. Switch off the RRU power. RRU P010369A 6. 236 Remove the upper sunshield and, if applicable, any optional units installed on the RRU.
RBS 2308 and RBS 2309 User’s Guide Removing the Fan Unit (if Present) 1. Remove the fan unit cover P011263A 2. Disconnect the fan power cable from the RRU. P010543B 3. Loosen the three screws and remove the fan unit.
RBS 2308 and RBS 2309 User’s Guide Removing the Earth Cable and Protection Cover 1. Disconnect the RRU earth cable. Note: This can only be done on an RBS without an omni antenna installed. P010518A 2. Remove the protection cover (if present). P010565A 3. Remove the MCB protection cover (if present) under the RRU.
RBS 2308 and RBS 2309 User’s Guide Removing the Sector Antenna or Omni Antenna (if Present) 1. If a sector antenna is used then disconnect the antenna cables from the RRU. See figure below. P010579B Figure 87 Sector Antenna Cable Disconnection 2. Loosen the four screws and remove the sector antenna. See figure below. P011293A Figure 88 Sector Antenna Removal 3. If an omni antenna is used then disconnect the antenna cables from the RRU. See figure below.
RBS 2308 and RBS 2309 User’s Guide P016114A Figure 89 Omni Antenna Cable Disconnection 4. Remove the omni antenna including the antenna bracket on top of the RRU. See figure below.
RBS 2308 and RBS 2309 User’s Guide 5. Disconnect the RRU earth cable (if present). P010518A Removing the MCB (if Present) 1. Remove the MCB cable connected to the RRU and the cables connected to the antennas. Loosen the two screws and remove the MCB. TX(/RX) ANT 1 ANT 2 TX(/RX) LOAD MCB P010375A Note: The figure shows an example of an MCB configuration.
RBS 2308 and RBS 2309 User’s Guide Removing the RXBP (if Present) 1. Remove the RXBP cables from the RRU. Loosen the screws and remove the RXBP. RXBP RX 2 RX 1 RXBP 2 RXBP1 P010376A Removing the Y-Link Cable 1. Disconnect the Y-link cable and the power cable from the RRU.
RBS 2308 and RBS 2309 User’s Guide Replacing the RRU 1. Loosen the screw under the RRU and unhook the RRU. P010378B 2. Hang the new RRU onto the upper hinge. Position the lower hinge and tighten the screw. Connecting the Cables and Optional Units 1. Connect the earth cable, power cable, and Y-link cable. 2. Install the RXBP (if present) and connect all cables. 3. Install the MCB (if present) and connect all cables. 4.
RBS 2308 and RBS 2309 User’s Guide 5. Press the Local/Remote button on the RRU to set the unit to remote mode. Wait until the RF off indicator on the RRU interface panel goes off and the Operational indicator shows a constant light. 6. Close the sunshields. Handling Replaced Units The RRU should be returned to Ericsson for repair with a repair delivery note, LZF 084 84 (Blue Tag) attached. Include a clear description of the fault found. See Section 10.
RBS 2308 and RBS 2309 User’s Guide Replacing the RXBP 4. Remove all cables connected to the RXBP and remove it after loosening the screws securing it. RXBP RX 2 RX 1 RXBP 2 RXBP1 P010376A 5. Mount the new RXBP and connect all cables. Putting the RRU into Service 6. Inform the OMC operator that the TRXs connected to the RRU are to be put into service. 7. Press the Local/Remote button on the RRU to set the unit to remote mode.
RBS 2308 and RBS 2309 User’s Guide P010232D 3. If a fan unit is used, then install the fan unit cover on top of the RRU, see figure below.
RBS 2308 and RBS 2309 User’s Guide 4. Attach the front sunshield to the left sunshield. 5. Close the front sunshield and attach it to the top shield (fan unit cover) and to the right sunshield. 6. Lock the shield. Handling Replaced Units The sunshield should be returned to Ericsson for repair with a repair delivery note, LZF 084 84 (Blue Tag) attached. Include a clear description of the fault found. See Section 10.6 Returning Hardware on page 255 for instructions on completing a repair delivery note.
RBS 2308 and RBS 2309 User’s Guide 4. Open the two clasps and pull the RRU to the left to gain access to the power switches. P010396A 5. Switch off the AC power and DC power.
RBS 2308 and RBS 2309 User’s Guide Replacing the TIM 6. Open the IXU cover. P010357B 7. Loosen the three screws and remove the faulty TIM. (x 3) P010374B 8. Install the new TIM and tighten the screws to 1.7 Nm. 9. Set the impedance switch positions on the TIM in accordance with the installed transmission cables. 10. Close the IXU cover and fasten the screws. Putting the RBS into Operation 11. Switch on the AC power and DC power. 12. Close the RRU. 13.
RBS 2308 and RBS 2309 User’s Guide 14. Press the Local/Remote button on the IXU to set the RBS to remote mode. Wait until the RF off indicator on the RRU interface panel goes off and the Operational indicator shows a constant light. 15. Close the sunshields. Handling Replaced Units The TIM should be returned to Ericsson for repair with a repair delivery note, LZF 084 84 (Blue Tag) attached. Include a clear description of the fault found. See Section 10.
RBS 2308 and RBS 2309 User’s Guide 4. Open the two clasps and pull the RRU to the left to gain access to the power switches. P010396A 5. Switch off the RRU power. RRU P010369A Replacing the Y-Link Cable 6. Remove the faulty Y-link cable from the RRU by opening the Y-link cover and disconnecting it. RRU IXU P010379A 7. Connect the new Y-link cable to the RRU and close the cover.
RBS 2308 and RBS 2309 User’s Guide 8. Open the IXU cover and remove the faulty Y-link cable from the IXU. P010357B 9. Connect the new Y-link cable to the IXU and close the cover. 10. Switch on the RRU power and close the RRU. Putting the RRU into Service 10.5.13 11. Inform the OMC operator that the RRU is to be put into service. 12. Press the Local/Remote button on the RRU to set the unit to remote mode.
RBS 2308 and RBS 2309 User’s Guide Table 69 Objects to be Recycled or Disposed of After Cabinet Maintenance Item Sort or recycle? Cable insulation from crimping, brazing or welding Sorted with plastics Packing chips Foam Polystyrene Bubble plastic Cable tie clippings Paper and wood Paper recycling Waste metal from cable ladders Recycled or sorted as metals.
RBS 2308 and RBS 2309 User’s Guide RRU Indicator State DC power on On RRU temp. Off (1) (1) Depending on power system configuration. Table 71 IXU Indicators After Maintenance IXU Indicator State Fault Off Operational On Local Off RBS fault Off External alarm Off AC power on On (1) DC power on On (1) IXU temp. Off Transmission OK On (2) (1) Depending on power system configuration. (2) A, B, C and/or D, depending on transmission configuration.
RBS 2308 and RBS 2309 User’s Guide Table 73 Checklist Check the following: 1. The indicators on the RRU, IXU and PSTU, if used, are in the approved status. 2. The test equipment has been disconnected from the RBS 3. The RBS cabinet and the mounting base are free from foreign objects. 4. All cabinets and cables are free of damage. 5. All EMC sealants and cable penetrations are intact. 6. Top and bottom of cabinet are free of obstructions (for airflow). 7.
RBS 2308 and RBS 2309 User’s Guide Instructions on reverse side REPAIR DELIVERY NOTE 1) Prepared 5) Country code 2) Telephone No. Eric Ericsson 6) Exchange code 7) State code H W S S E 11) Product No. +46 8 757 3285 KRC 123 456/1 8) Consecutive No. 12) R-state R1A 15) Function description 17) Factory code 19) Manufact. (year, week) A5304AQ41B 21) Superior product No. 22) R-state 9714 23) Serial No. LZF 084 84/1EN R1A RBS 2102 24) Sender 1999-08-16 9) Cellsite No. 13) Channel No.
RBS 2308 and RBS 2309 User’s Guide It is the customer’s responsibility to ensure that products are cleaned and labelled according to instructions from Ericsson. Products received without a proper label or that are not cleaned from, for example, bird dropping, soil, or soot, are subject to being returned without being repaired. Cleaning Procedure When cleaning the unit always follow the instructions from the supplier of the cleaning product, for example, use of gloves and ventilation requirements.
RBS 2308 and RBS 2309 User’s Guide Hatch and cable gland Connectors Disinfection label P016240A Figure 92 258 RRU Protection Before Cleaning EN/LZT 720 0027 Uen R8A 2006-06-27
RBS 2308 and RBS 2309 User’s Guide GPS/AUX Disinfection label Cable glands Covers Connector GPS/AUX P016241A Figure 93 EN/LZT 720 0027 Uen R8A 2006-06-27 IXU Protection Before Cleaning 259
RBS 2308 and RBS 2309 User’s Guide 260 EN/LZT 720 0027 Uen R8A 2006-06-27
RBS 2308 and RBS 2309 User’s Guide 11 Reconfiguring the RBS for IP Transmission 11.1 Introduction This chapter describes how to reconfigure the RBS 2308 for IP Transmission. Installing a Packet-Switched Termination Unit (PSTU) enables the RBS to carry traffic over an Internet Protocol (IP) network. When an RBS 2308 is configured with a PSTU for IP-based transmission, a maximum of four Transceivers (TRX) can be used. Reconfiguration can be done either in-house or on-site.
RBS 2308 and RBS 2309 User’s Guide 11.3.1 Taking the RBS Out of Operation 1. Open the sunshields. 2. Contact the Operation and Maintenance Centre (OMC) operator to obtain permission to take cells out of service. Wait until the RF off indicator on all Remote Radio Unit (RRU) interface panels shows a constant light. 3. Press the Local/Remote button on the Interface and Switching Unit (IXU) to set the RBS to local mode. Wait until the local indicator on the IXU shows a constant light. 4.
RBS 2308 and RBS 2309 User’s Guide 5. Switch off the AC power and DC power. AC DC P010517A 11.3.2 Removing the TIM Note: 1. This section is applicable only for RBSs equipped with an IXU with revision state lower than R5A. For IXUs with revision state R5A or higher, the TIM is integrated in the IXU and cannot be removed. Open the IXU cover.
RBS 2308 and RBS 2309 User’s Guide 2. Remove the connection frame and all cables from the Interface Board (IFB). P010358A 3. Loosen the three screws and remove the TIM. ( 3) P010374D 11.3.3 Unpacking the PSTU Unpack the PSTU and its accompanying installation parts on-site. To avoid damage, do not unpack the equipment elsewhere and then transport it to the site. Caution! Stop! This product contains components sensitive to ESD.
RBS 2308 and RBS 2309 User’s Guide To prevent components being damaged by electrostatic discharges during unpacking, avoid contact with the connectors of the PSTU. Ensure that the correct equipment has been delivered. If it is damaged, then immediately inform the supervisor or the transport company. 11.3.4 Installing the PSTU 1. Connect the PSTU to the IXU connector and fasten the four screws. See figure below. T20 Torx 4 1.7 Nm ±10% P015753B Figure 94 11.3.
RBS 2308 and RBS 2309 User’s Guide Note: Do not connect the Ethernet cable connectors to the PSTU yet. If the PSTU contains a configuration from previous use, then connecting the Ethernet cables can generate conflicting IP traffic. 2. Reinstall the connection frame. 3. Optical Ethernet: Pass the optical Ethernet cable through the most suitable cable inlet, so that about 20 mm of the cable sleeve protrudes into the PSTU, and tighten the cable gland.
RBS 2308 and RBS 2309 User’s Guide Connecting the OMT 1. Remove the lid from the OMT port on the IXU. 2. Connect the OMT cable from the PC serial port to the OMT port on the right-hand side of the IXU. If an extended OMT cable is connected to the OMT port, then connect the OMT cable to the end of the extended OMT cable. Local/Remote AC power on DC power on IXU temp. Transmission OK Port A Port C Port B Port D OMT Cable P010276B Figure 96 OMT Connection 3. Start the OMT.
RBS 2308 and RBS 2309 User’s Guide 5. In the Final Configuration Selection window, confirm that the cabinet and antenna sector parameters are correct and click OK. 6. In the OMT dialog box asking Do you want to reuse data in the previous configuration?, click Yes. 7. In the Reuse Site Specific Data window, select All Parameter and click OK. Note that transmission parameters are not highlighted because IP is selected as the transmission interface. 8.
RBS 2308 and RBS 2309 User’s Guide 11.3.8 Setting the RBS to Remote Mode 1. Inform the OMC operator that the PSTU configuration can be completed from the Operations Support System (OSS). 2. Press the Local/Remote button on the IXU to set the RBS to remote mode. Wait until the RF off indicator on the RRU interface panel goes off and the Operational indicator comes on. 3. Close the sunshields. 4. Coordinate the RBS integration with the OMC operator.
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RBS 2308 and RBS 2309 User’s Guide 12 Glossary This glossary lists terms and abbreviations used in documentation for RBS 2000 cabinets. It includes some terms and abreviations needed for cross-reference purposes. Terms and Abbreviations An arrow ⇒ is used to indicate a reference to another entry in the list. 1-P One-pair connection with echo cancellation (= two wires). 2-P Two-pair connection with echo cancellation (= four wires).
RBS 2308 and RBS 2309 User’s Guide AIS Alarm Indication Signal ALBO Automatic Line Build-Out ALNA Antenna Low-Noise Amplifier ALPU Antenna Lightning Protection Unit AMR Adaptive Multi-Rate AO Application Object ARAE Antenna-Related Auxiliary Equipment ARFCN Absolute Radio Frequency Channel Number ARP Antenna Reference Point ARU Active Replaceable Unit ASD Acceleration Spectral Density ASIC Application-Specific Integrated Circuit ASU Antenna-Sharing Unit AT Alphanumeric Terminal
RBS 2308 and RBS 2309 User’s Guide BDM Battery Distribution Module IDM with a battery and local processor. BEP Bit Error Probability BER Bit Error Rate BFF Bit Fault Frequency BFI Bad Frame Indication BFU Battery Fuse Unit BI Base Interval bias injector Unit that injects DC power for the TMA into the coaxial cable and isolates such power from the RF signal to the CDU. Bm Full-rate traffic channel.
RBS 2308 and RBS 2309 User’s Guide cabinet Physical housing of a base station. cascading Connection of several cabinets by a PCM cable; similar to serial connection. CBCH Cell Broadcast Channel Downlink-only channel used by the GSM-defined SMSCB function.
RBS 2308 and RBS 2309 User’s Guide CM Control Module [for TMA] CMCN Central Main CPU Node CMD Digital Radio Communication Tester CME 20 Cellular Mobile Europe CMRU • CME 20 Ericsson digital land mobile telecommunication system based on the GSM standards • CME 201 Ericsson GSM system consisting of Ericsson equipment only Central Main Replaceable Unit A DXU- or IXU-equipped RBS is physically connected to the BSC through a single CMRU. An RBS without a DXU or IXU is regarded as a CMRU.
RBS 2308 and RBS 2309 User’s Guide CPU Central Processing Unit CRC Cyclic Redundancy Check CRCE CRC errors from far end.
RBS 2308 and RBS 2309 User’s Guide DIP Digital Path Function used to supervise connected PCM lines. DM Degraded Minute Distribution Module DMCN Distributed Main CPU Node DMRU Distributed Main Replaceable Unit Main RU subordinated to the CMRU. downlink System-to-MS signalling direction.
RBS 2308 and RBS 2309 User’s Guide DXU Distribution Switch Unit DXX Digital Cross-Connect E1 2 Mbps transmission link.
RBS 2308 and RBS 2309 User’s Guide ESF Extended Superframe Format ESO Ericsson Support Office ETS European Telecommunications Standard ETSI European Telecommunications Standards Institute EXT External FACCH Fast Associated Control Channel Main signalling channel in association with a TCH.
RBS 2308 and RBS 2309 User’s Guide G.704 Synchronous frame structures used at 1544, 6312, 2048, 8448, and 44 736 kbps, as defined by the ITU. GPRS General Packet Radio Services GPS Global Positioning System GPS-OVP GPS Overvoltage Protection GPSS GPS-based Synchronization Source GS General Specification GSL GPRS Signalling Link GSM Global System for Mobile Communications International standard for a TDMA digital mobile communications system.
RBS 2308 and RBS 2309 User’s Guide HPT High-Power Terminator HTU HDSL Terminating Unit hum Humidity HW Hardware HWU Hardware Unit Functional unit in an RBS; consists of one or more SEs and is either active (has a processor) or passive (has no processor). I1A Class 1A internal fault map. I1B Class 1B internal fault map. I2A Class 2A internal fault map.
RBS 2308 and RBS 2309 User’s Guide IP Internet Protocol IR Infrared IS Interface Switch ITU International Telecommunication Union IWD Interwork Description IXU Interface and Switching Unit JTC Joint Technical Committee kbps Kilobits per Second LAN Local Area Network LAPD Link-Access Procedures on D-Channel LAPD is the data link layer (layer 2) protocol used for communication between the BSC and BTS on the Abis interface. Abis layer 2 is sometimes used as a synonym for LAPD.
RBS 2308 and RBS 2309 User’s Guide • CCH – for control signalling ⇒ physical channel ⇒ channel combination logical RU Can be referred to but is not a single physical unit. LOS Loss of Signal LVD Low Voltage Directive LSB Least Significant Bit LVF Low Voltage Filter MAC Media Access Control MADT Mean Accumulated Downtime magazine Reserved space in a cabinet that can hold one or more RUs. main RU Contains one or more processors, to which software can be downloaded from the BSC.
RBS 2308 and RBS 2309 User’s Guide MSC Mobile Services Switching Centre GSM network unit for switching, routing, and controlling calls to and from the PSTN and other networks. MSTP Mobile Station Test Point MTBF Mean Time Between Failures MTBCF Mean Time Between Critical Failures MTU Maximum Transmission Unit multidrop Two or more RBSs connected in a chain to the same transmission system. All the relevant time slots are dropped out by each RBS (also sometimes called cascading).
RBS 2308 and RBS 2309 User’s Guide Layer 2 communication link for operation and maintenance services on Abis. OMT Operation and Maintenance Terminal PC application for RBS O&M. operation The normal everyday fully functional running of an RBS. OPI Operational Instructions OSS Operations Support System OTU Outdoor Terminating Unit OVP Overvoltage Protection OXU Space for optional expansion.
RBS 2308 and RBS 2309 User’s Guide PGW Packet Gateway physical channel Air interface physical channel that carries one or more logical channels. It uses a combination of frequency and TDMA and is defined as a sequence of radio frequency channels and time slots.
RBS 2308 and RBS 2309 User’s Guide Uplink-only CCCH subchannel for MS requests to allocate dedicated channels. ⇒ 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 stations. ⇒ BTS RCB Residual Current Breaker RD Receive Data remote mode When an RU is in RU remote mode, a link is established between the BSC and CMRU.
RBS 2308 and RBS 2309 User’s Guide RRU Remote Radio Unit RSL Radio Signalling Link R-state Release state RS-232 American standard for term/MODEM interconnection. rTMA Receiver TMA RTN Return RTS Request to Send RU Replaceable Unit Consists of one or more HWUs and can be replaced by another RU of the same type. The smallest unit that can be handled on-site.
RBS 2308 and RBS 2309 User’s Guide SCU Switching and Combining Unit SDCCH Stand-Alone Dedicated Control Channel Main dedicated signalling channel on the air interface, used mainly for call locating and establishment.
RBS 2308 and RBS 2309 User’s Guide Note that an RU with a processor, which cannot be loaded, is classified as a sub-RU. SVS System Voltage Sensor SW Software SWR Standing Wave Ratio SYNC Synchronous T1 1544 kbps PCM link (G.703 transmission standard) TA Timing Advance Signal sent by the BTS to an MS, where it is used to advance transmission timing to the BTS to compensate for propagation delay.
RBS 2308 and RBS 2309 User’s Guide TF Timing Function TG Transceiver Group TIM Transmission Interface Module timing bus Carries air-timing information from the timing unit in the DXU to the TRUs. TLS Terrestrial Link Supervision TM Time Measurement Transport Module Non-RBS equipment belonging to the transport network.
RBS 2308 and RBS 2309 User’s Guide TT Total Time TU Timing Unit TX Transmitter TXA Transmitter Antenna A TXB Transmitter Antenna B TXBP Transmitter Bandpass Filter TXD Transmitted Data TXU Radio Transmitter Unit UAS Unavailable Seconds UAST Unavailable State supervision UL Underwriter Laboratories uplink MS-to-system signalling direction.