Page 4 RBS 2401 User’s Guide Due to continued progress in methodology, design and manufacturing, the contents of this document are subject to revision without notice. 2 (180) LZN 302 14 © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 5 RBS 2401 User’s Guide Contents 1 Introduction ....................7 1.1 Competence Requirements for Work with RBS 2401......7 1.2 Release History ..................8 1.2.1 R1A to R2A...................8 1.2.2 R2A to R3A...................8 2 Safety Instructions..................11 2.1 Warnings....................11 2.2 Notes......................12 2.3 Electrical Hazards..................13 2.3.1 Electrostatic Discharge, ESD ...............
Page 6 RBS 2401 User’s Guide 4.2 Installation of Radio Cabinet ..............36 4.2.1 Installation Procedure Overview............36 4.2.2 Unpacking.....................37 4.2.3 Mounting the Radio Cabinet..............38 4.2.4 Connecting Cables ................42 4.2.5 Extension and Reconﬁguration.............56 4.3 Test of Radio Cabinet................57 4.3.1 User Interface ..................57 4.3.2 Test Procedure Overview..............59...
Page 7 RBS 2401 User’s Guide 5.2.2 HDSL Module ..................116 5.2.3 AGW Module ..................118 5.3 Corrective Action ..................119 5.3.1 Replacement of Radio Cabinet ............119 5.3.2 Replacement of Fuses in Radio Cabinet ..........135 5.3.3 Replacement of HDSL Module.............140 5.3.4 Replacement of AGW Module..............148...
Page 9 Introduction Introduction The RBS 2401 is a pico base station intended for indoor installation. It is equipped with two low power transceivers and an optional omnidirectional antenna. The small dimensions mean indoor coverage for GSM 900, GSM 1800 and GSM 1900 with a minimum of space required.
Page 10 Introduction • A basic knowledge of Ericsson materials. • Good understanding of technical English. Release History Except editorial changes such as correction of spelling, grammar, and layout, this manual has been revised as follows: 1.2.1 R1A to R2A • Information affecting several chapters: −...
Page 11 Subsection “HDSL Module” has been revised. − Subsection ”Repair Delivery Note (Blue Tag)” has been modiﬁed − Section “Spare Parts” has been updated. • Chapter “Glossary” has been updated. LZN 302 14 9 (180) © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 13 For certain work, additional training or special training may be required. For more precise information on the amount and content of the general and/or special training required for work on Ericsson products or systems, please contact the supervisor or the local Ericsson company. Warnings Warnings are used to indicate hazardous activities.
Page 14 Notes Note: Notes are used to call the reader’s attention to key points that might otherwise be overlooked. 12 (180) LZN 302 14 © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 17 The resistance value is low enough to discharge the electrostatic voltage. Never replace the cable with any other cable. The ESD wrist strap must be connected to earth. Ericsson recommends wrist strap LYB 250 01/14. Storing and Transporting printed board assemblies and IC Components Use the original packaging.
Page 18 2.4.1 Rules and Advice for the Safe Use of Ladders • Make sure that the ladder is undamaged and has been approved for use. 16 (180) LZN 302 14 © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 19 Never prop up a ladder with boxes, stones or the like. • Extend the ladder completely. • Check that all four anti-slipping treads are ﬁrmly positioned on the base. LZN 302 14 17 (180) © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 20 Radio frequency (RF) radiation from antenna systems can endanger your health. Co-ordinate with all mast users to switch off the transmitters when working with, or near, antennas. 18 (180) LZN 302 14 © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 21 Radio Base Station. Sharp Edges WARNING Wear protective gloves when handling the equipment. There may be sharp metal edges. LZN 302 14 19 (180) © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 24 Antenna System There are two alternatives: • External antenna (if available) • Omnidirectional antenna (optional) P004614B Figure 12 RBS 2401 with omnidirectional antenna (optional) mounted 22 (180) LZN 302 14 © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 25 Site Requirements and Product Data Product Data RBS 2401 3.2.1 Main Units P004753B Figure 13 RBS 2401 main units Front cover Radio cabinet Wall bracket Omnidirectional antenna (Optional) HDSL or AGW module (Optional) LZN 302 14 23 (180) © Ericsson Radio Systems AB 2000-02-18 —...
Page 26 -40 to +70 -25 to +55 Rel. humidity 10 to 85 %RH Soundless Operation RBS 2401 does not make any noise when in operation. Resistance against Vibrations The RBS 2401 withstands vibrations below 0.2 g. 24 (180) LZN 302 14 ©...
Page 27 200 - 250 V AC ±10 %, 50 Hz ±10 % 200 V AC ±10 %, 60 Hz ±8 % RBS 2401 is automatically adapted to any voltage within the operating range 100 - 127 V AC, and 200 - 250 V AC.
Page 28 60 Hz max. 60 A < 5 kA 3.2.3 Transmission Transmission Cables RBS 2401 can be connected to transmission interface type E1, using two coaxial cables 75 , or E1/T1 using four-wire twisted pair 100/120 75 W 100/120 W P004592B...
Page 29 Max 1,5 mm PCM B PCM A P004640B Figure 18 Cable glands and clamp terminal for transmission cables The RBS 2401 is equipped with two transmission ports, PCM-A and PCM-B, with separate input and output pairs: • PCM-A IN • PCM-A OUT •...
Page 30 HDSL or AGW module, due to the risk of interference. If an HDSL or AGW module is installed, an external antenna should be used. Both TRXs of the RBS 2401 are connected to both antenna outputs. Antenna connectors: 2 x TNC, coaxial. P004614B Figure 20...
Page 31 Product Data HDSL Module Dimensions and Weight See Section 3.2.2 Technical Data on page 24. Temperature and Humidity Limits Same limits as for RBS 2401. Soundless operation The HDSL module does not make any noise when in operation. Resistance against vibrations Same limits as for RBS 2401.
Page 33 Product Data AGW Module Dimensions and Weight See Section 3.2.2 Technical Data on page 24. Temperature and Humidity Limits Same limits as for RBS 2401. Soundless operation The AGW module does not make any noise when in operation. Resistance against vibrations Same limits as for RBS 2401.
Page 35 Cordless hammer drill machine tool set: - 220 V LTT 601 12/2 - 115 V LTT 601 12/1 (1) Included in LTT 601 96/1, Personal Installation Tool Kit. LZN 302 14 33 (180) © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 36 LPP 11212/1 The TEMS Kit includes: - Test Mobile Phone - User’s Manual for TEMS SW - TLL Converter - MS Cable - Connector Cable 34 (180) LZN 302 14 © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 37 In order to minimise the tools required at site, a PC with the following minimum capacity is required: • Intel 486 processor • 66 MHz • 16 MB RAM • Microsoft Windows version 95/NT LZN 302 14 35 (180) © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 38 Positioning the Wall Bracket Mounting the Wall Bracket Mounting of Cabinet Connecting Cables Setting the Transmission Switch(es) Mounting the Fuses Mounting the Antenna P004974A Figure 26 36 (180) LZN 302 14 © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 40 Units of measurements: mm P004707A Figure 29 Deﬁning the position of the radio cabinet in relation to the wall bracket reference screw 38 (180) LZN 302 14 © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 41 Marking out the position of the reference screw for the wall bracket Place the wall bracket in position with the reference screw. P004709 Figure 31 LZN 302 14 39 (180) © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 42 Installation and Tests Level the wall bracket, and mark the holes for the four fastening screws. P004710A Figure 32 Mount the wall bracket. P004711A Figure 33 40 (180) LZN 302 14 © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 43 Mount the radio cabinet on the wall bracket. P004525B Figure 34 Secure the radio cabinet on the wall bracket with the two screws. Tx20 P004526A Figure 35 LZN 302 14 41 (180) © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 44 CAUTION Sensitive components such as Integrated Circuits (IC) can be damaged by discharges of static electricity. 42 (180) LZN 302 14 © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 45 Installation and Tests Remove the installation box cover. Tx20 P004877A Figure 36 Connect the ESD wrist strap. P004712A Figure 37 LZN 302 14 43 (180) © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 46 Dismount the cable gland plate Tx20 P004718A Figure 38 Dismount the earth clamp (if used). Tx10 P004719A Figure 39 Unplug the terminal blocks. P004720B Figure 40 44 (180) LZN 302 14 © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 47 Thread on the cable gland parts on the PCM cable. 100 / 120 W P004860B Figure 41 Strip the cable and the wires. Unit of measurement: mm P004861C Figure 42 LZN 302 14 45 (180) © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 48 2. Mount the cable gland sealing nut. 3. Adjust the cable length to suit the position of the terminal. 4. Tighten the the cable gland sealing nut. 46 (180) LZN 302 14 © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 49 Connect the cable as shown in Figure 46 on page 48. Note: If DC isolation (capacitor) is used, The IN and OUT wire shields and TNC connectors must be isolated from each other. LZN 302 14 47 (180) © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 50 PCM cable with DC isolation of IN wire, and coaxial TNC connectors OUT_GND 100/120 W 75 W OUT_N_LINE OUT_P_LINE IN_GND IN_N_LINE IN_P_LINE P006412A Figure 46 Alternative PCM cable if DC isolation is not required 48 (180) LZN 302 14 © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 51 X4.1-6 P004726A Figure 48 Stand Alone mode: PCM B terminated with a 46.4 resistor PCM B X4.1-6 P004725A Figure 49 PCM B cascade connection LZN 302 14 49 (180) © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 52 6 5 m m P004727B Figure 51 AC mains cable X1.1-2 X1.1-2 230 V AC 115 V AC P004728B Figure 52 AC mains terminal 50 (180) LZN 302 14 © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 53 Installation and Tests Remount the cable gland plate. Tx20 P004729A Figure 53 Connect the protective earth cable. Tx20 P004730A Figure 54 LZN 302 14 51 (180) © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 54 Installation and Tests Plug in the terminal blocks. P004731A Figure 55 Mount the earth clamp (if used). Tx10 P004732B Figure 56 52 (180) LZN 302 14 © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 56 5x20 115V T3,15 A 5x20 230V T2,5 A P004735B Figure 59 Insert the fuse holder in the fuse compartment. P004805B Figure 60 54 (180) LZN 302 14 © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 57 (If the RBS is to be tested now, perform the tests according to Section 4.3 Test of Radio Cabinet on page 57.) P004615A Figure 61 Mount the installation box cover. Tx20 P005034A Figure 62 LZN 302 14 55 (180) © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 59 The last PCM B IN terminated with a 46.4 resistor Test of Radio Cabinet 4.3.1 User Interface Optical Indicators Fault Operational Local Mode Power On P004867B Figure 66 LZN 302 14 57 (180) © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 60 Fault NOT LIT Operational STEADY LIGHT Local Mode FLASHING LIGHT Power On P004986B Figure 67 Switches and Connectors O M T P004738A Figure 68 58 (180) LZN 302 14 © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 61 High voltage is used in the operation of this equipment. Both direct contact with the mains power and indirect contact via damp items or moisture can be fatal. LZN 302 14 59 (180) © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 62 Wait for the start-up to complete. This could take 30 to 120 seconds. Fault Operational Local Mode Power On 30-120 sec. P004855B Figure 71 60 (180) LZN 302 14 © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 63 The BSC simulator, BSCSimII, is shown below, but any PC with OMT software (R7C or later) will do. P004856A Figure 73 Connecting the OMT LZN 302 14 61 (180) © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 64 TEI (Cascade) TEI= 58 TEI= 59 TEI= 60 TEI= 61 TEI= 62 P004883B Figure 74 For further information, see: OMT User’s Manual LZN 302 01 62 (180) LZN 302 14 © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 65 If necessary, press the Local/ Remote button to change mode. The Local/Remote indicator starts ﬂashing, and turns off when contact with the BSC has been established. LZN 302 14 63 (180) © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 66 Request the BSC operator to check the digital path on the active RBLT. If the digital path is OK, disconnect the CB21 connection board, and connect the PCM A terminal to the radio cabinet. 64 (180) LZN 302 14 © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 67 Make two test calls: one to the mobile station, and one from the mobile station. If two ARFCNs are entered, make calls until both ARFCNs are displayed in the Dedicated Channel window. LZN 302 14 65 (180) © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 68 Remove the gland plate on the RBS, and mount the AGW module with six screws, two on each side, and two screws on the cable gland plate. Tx20 P005190B Figure 79 66 (180) LZN 302 14 © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 70 Installation and Tests Plug in the transmission cable. P005194A Figure 82 Strip the AC cable. max 2,5 mm 6 5 m m P004727B Figure 83 68 (180) LZN 302 14 © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 71 Connect the AC cable. X1.1-2 X1.1-2 230 V AC 115 V AC P004728B Figure 85 Connect the earth cable in the RBS. Tx20 P004730A Figure 86 LZN 302 14 69 (180) © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 72 Run the LAN cable through the gland, and shrink on the modular connector. P005463B Figure 87 Plug in the LAN cable. P005258A Figure 88 70 (180) LZN 302 14 © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 73 Installation and Tests Ensure that the cables are not stretched, then tighten the cable glands. P006233A Figure 89 Remount the cover. Tx10 P005461B Figure 90 LZN 302 14 71 (180) © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 74 Note: Omnidirectional antenna is not allowed if AGW/HDSL is used. P005230C Figure 91 Remount the front cover on the AGW module. P005443B Figure 92 72 (180) LZN 302 14 © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 76 Installation and Tests Insert the fuse holder in the fuse compartment. P005456B Figure 95 Mount the installation box cover. Tx20 P005439A Figure 96 74 (180) LZN 302 14 © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 77 Remove the gland plate on the RBS, and mount the HDSL module with six screws, two on each side, and two screws on the cable gland plate. Tx20 P005334B Figure 98 LZN 302 14 75 (180) © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 78 Installation and Tests Remove the cover. Tx10 P005337B Figure 99 Connect the DC cable, and the internal transmission cables to the radio cabinet. P005336A Figure 100 76 (180) LZN 302 14 © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 79 Run the transmission cables from the radio cabinet through the opening up to the HDSL module. P005362A Figure 101 Strip the AC cable. max 2,5 mm 6 5 m m P004727B Figure 102 LZN 302 14 77 (180) © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 80 230 V AC 115 V AC P004728B Figure 104 AC mains terminal Connect the protective earth cable in the RBS. Tx20 P004730A Figure 105 78 (180) LZN 302 14 © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 81 US UPSTREAM (TOWARDS BSC) DS DOWNSTREAM (TOWARDS NEXT RBS) NC NOT CONNECTED P005352A Figure 106 Run the transmission cable through the cable gland. P006255A Figure 107 LZN 302 14 79 (180) © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 82 Connect the PCM A and PCM B cable on the HDSL connection board, according to Figure 112 on page 82. P006260A Figure 109 The PCM cable prepared for connection 80 (180) LZN 302 14 © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 83 Installation and Tests P006264A Figure 110 PCM terminal in the HDSL connection board m a x 3 P004909B Figure 111 Recommended method when connecting wires LZN 302 14 81 (180) © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 85 RBS number 6 RBS number 7 RBS number 8 SW 7 Reserved in chain mode Not applicable SW 8 Usage of external alarm Not applicable LZN 302 14 83 (180) © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 86 1 + 1 protection used SW 7 Modem role in point-to-point mode HDSL Master HDSL Slave SW 8 Not applicable Usage of external alarm 84 (180) LZN 302 14 © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 87 To reset the HDSL, put all DIP switches to OFF position and then back to a new setting. Ensure that power is on during the reset. Switching power Off/On will not enable the DIP switches. LZN 302 14 85 (180) © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 88 Ensure that the cables are not stretched, then tighten the cable glands. P006233A Figure 113 Remount the cover on the module. Tx10 P005338B Figure 114 86 (180) LZN 302 14 © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 89 Note: Omnidirectional antenna is not allowed if AGW/HDSL is used. P005230C Figure 115 Remount the front cover on the HDSL module. P005443B Figure 116 LZN 302 14 87 (180) © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 90 1 0 0 / 1 2 0 P005457A Figure 117 Install the fuses. 5x20 115V T3,15 A 5x20 230V T2,5 A P004735B Figure 118 88 (180) LZN 302 14 © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 91 Installation and Tests Insert the fuse holder in the fuse compartment. P005456B Figure 119 Mount the installation box cover. Tx20 P005439A Figure 120 LZN 302 14 89 (180) © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 92 HDSL Upstream - PCM Downstream, one or two pairs. • HDSL Upstream - HDSL Downstream, one pair only. • HDSL Downstream, one or two pairs 90 (180) LZN 302 14 © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 93 (Middle) Green Power Power ON Power OFF (Right) (1) All three LEDs ﬂashing simultaneously indicate a faulty conﬁguration (inconsistent setting of the DIP switches). LZN 302 14 91 (180) © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 94 PCM upstream - 1 x 2 Master P_to_P HDSL downstream, one pair PCM upstream - 2 x 1 Master P_to_P HDSL downstream, two pairs 92 (180) LZN 302 14 © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 96 Test Setup: HDSL Upstream, one or two pairs Ad21x3 HDSL BSCSim adapter BSCSim II RBS 2401 P006191A Figure 124 Test Setup: HDSL Upstream, one or two pairs 94 (180) LZN 302 14 © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 97 The antenna connector that is not used must be terminated with a 50 resistor. Switch on the RBS, the HTU and the BSC simulator. LZN 302 14 95 (180) © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 98 Test Setup: HDSL Upstream, one or two pairs - PCM Downstream, Ad21x3 HDSL BSCSim adapter BSCSim II RBS 2401 number 1 Ad21x3 RBS 2401 number 2 P006192A Figure 125 Test Setup: HDSL Upstream, one or two pairs - PCM Downstream...
Page 99 The antenna connector that is not used must be terminated with a 50 resistor Switch on the RBS, the HTU and the BSC simulator. LZN 302 14 97 (180) © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 100 Test Setup: HDSL Upstream, one pair - HDSL Downstream, one pair Ad21x3 HDSL BSCSim adapter BSCSim II RBS 2401 number 1 Ad21x3 HDSL RBS 2401 number 2 P006193A Figure 126 Test Setup: HDSL Upstream, one pair- HDSL Downstream, one pair...
Page 101 The antenna connector that is not used must be terminated with a 50 resistor Switch on the RBS, the HTU and the BSC simulator. LZN 302 14 99 (180) © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 102 4.6.6 Test Setup: PCM Upstream - HDSL Downstream, one or two pairs Ad21x3 HDSL BSCSim adapter BSCSim II RBS 2401 number 1 Ad21x3 HDSL RBS 2401 number 2 P006194A Figure 127 Test Setup: HDSL Downstream, one or two pairs 100 (180) LZN 302 14 ©...
Page 103 A21 to the antenna connector on the RBS. Note: The antenna connector that is not used must be terminated with a 50 resistor. Switch on the RBS, and the BSC simulator. LZN 302 14 101 (180) © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 104 TRX. When the test is completed, disconnect the test equipment and reconnect the HDSL/PCM socket on the HDSL module. 102 (180) LZN 302 14 © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 105 1. LED indicator FAULT is OFF. 2. LED indicator OPERATIONAL is ON. 3. RBS 2401 is in Remote mode (Local mode indicator OFF). 4. Backup copy of the RBS IDB saved on a diskette. 5. LED status on HDSL/AGW module checked.
Page 106 - Fault Status Reading - MS Test Call using simulator IDB Status CRC-4 (E1) TNOM USE TNOM TIMESLOT TNOM NODE ID (1) R7 and later 104 (180) LZN 302 14 © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 108 Installation and Tests Antenna Installation Test Installation check Remarks Visual check Antenna system used: - RBS 2401 omnidirectional - External MS Test Call using BSC Simulator (Optional test) RX Level RX Quality TRX 1 RX-A TRX 2 Mobile used for this test Model Rev.
Page 109 MS Terminated Remarks PSTN TO MS CALL Failed Remarks HDSL module AGW module 4.8.3 Signatures Responsible for Test Record Name Date Customer Acceptance Name Date LZN 302 14 107 (180) © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 110 The trouble report should be sent to the nearest FSC (Field Support Center) for resolution and registration in the Ericsson trouble report system MHS (Modiﬁcation Handling System). The FSC should forward the trouble report via the node MHO ERA BTS.
Page 111 Product number or Document number: R-state Site name: Site status: Site id: Trouble symptoms: Trouble Desciption: Comments: 03_0179A Figure 128 Example of ﬁlled-in trouble report LZN 302 14 109 (180) © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 112 Heading: Product number or Document number: R-state Site status: Site id: Site name: Trouble symptoms: Trouble Desciption: Comments: 02_0179A Figure 129 Trouble report, blank 110 (180) LZN 302 14 © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 113 24 Sender Customer, Company, Corporate ID 26 Remarks/special Information about installation date, logfiles and modification requirements instructions P005537C Figure 130 Repair delivery note “Blue Tag” LZN 302 14 111 (180) © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 115 In order to minimise the tools required at site, a PC with the following minimum capacity is required: • Intel 486 processor • 66 MHz • 16 MB RAM • Microsoft Windows version 95/NT LZN 302 14 113 (180) © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 116 Local Mode FLASHING LIGHT Power On P004986B Figure 132 RBS 2401 Operational Fault Operational Local Mode Power On P004867A Figure 133 “RBS 2401 operational” indicated 114 (180) LZN 302 14 © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 117 ﬂashing, try to reload BTS Operational software manually or replace Local Mode the cabinet. Power On P005394A Software fault IDB is corrupt. Reinstall IDB. LZN 302 14 115 (180) © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 118 Upstream -DC Power On P005399B 2 Pair (2p) Pair 1/Downstream Pair 2/Upstream -Pair 1 Downstream -Pair 2 Upstream DC Power -DC Power On P005401B 116 (180) LZN 302 14 © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 119 • Pair 2 or Upstream link • Check transmission Line missing PAIR 1/Downstream link -Pair 1 Downstream -Pair 2 Upstream -DC Power On P005399B LZN 302 14 117 (180) © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 120 Section 5.3.4 on Operational page 148. Lan Link Fault P005404B LAN connection missing. Check LAN connection, or possible network problem. Operational Lan Link Fault P005403B 118 (180) LZN 302 14 © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 121 Sensitive components such as Integrated Circuits (IC) can be damaged by discharges of static electricity. 5.3.1 Replacement of Radio Cabinet Remove the front cover. P004858A Figure 134 LZN 302 14 119 (180) © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 122 R e m o t Operational R e s e t Local Mode Power On P005318A Figure 136 Switch off the AC mains power. P004888A Figure 137 120 (180) LZN 302 14 © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 123 Maintenance and Spare Parts Connect the ESD wrist strap. P004712A Figure 138 Remove the antenna P004897A Figure 139 LZN 302 14 121 (180) © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 125 P C M A P004899A Figure 142 Disconnect the protective earth wire. LO O P B A C K PC M A Tx20 P004900A Figure 143 LZN 302 14 123 (180) © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 127 Loosen the two cabinet securing screws. Tx20 P004953A Figure 146 Lift the faulty cabinet to unhook it from the mounting bracket, and mount a new cabinet. P004901B Figure 147 LZN 302 14 125 (180) © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 128 Maintenance and Spare Parts Secure the cabinet by tightening the two securing screws. Tx20 P005049A Figure 148 Remove the installation box cover. Tx20 P005053A Figure 149 126 (180) LZN 302 14 © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 129 Tx20 P004718A Figure 151 Mount the cable gland plate, with its cables, on the new cabinet. Tx20 P004931A P004931A Figure 152 LZN 302 14 127 (180) © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 130 Mount the fuses in the fuse holder. Be sure to use the fuses intended for the actual mains voltage. 5x20 115V T3,15 A 5x20 230V T2,5 A P004735B Figure 154 128 (180) LZN 302 14 © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 131 Maintenance and Spare Parts Insert the fuse holder in the fuse compartment. P004805B Figure 155 Mount the antenna. P004615A Figure 156 LZN 302 14 129 (180) © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 133 TNOM USE • TNOM NODE ID • TNOM TIMESLOT • TEI (Cascade) TEI= 58 TEI= 59 TEI= 60 TEI= 61 TEI= 62 P004883B Figure 160 LZN 302 14 131 (180) © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 134 10 seconds, otherwise the PCM line will be lost. LO O P B A C K P004932A Figure 161 Fasten the earth clamp. Tx10 P004933B Figure 162 132 (180) LZN 302 14 © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 136 P004922A Figure 165 Mount the front cover. P004859A Figure 166 To ﬁnish the work, continue with section Section 5.5 Concluding Routines on page 170. 134 (180) LZN 302 14 © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 137 Replacement of Fuses in Radio Cabinet Checking the Fuses Remove the front cover. P004858A Figure 167 Remove the installation box cover. Tx20 P004869A Figure 168 LZN 302 14 135 (180) © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 138 Ensure that the AC mains power is switched on. Measure on the AC terminal to verify that the RBS has voltage. P004853A Figure 169 Switch off the AC power. P004887A Figure 170 136 (180) LZN 302 14 © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 139 Replacing Fuses Remove the blown fuse, and insert a new in the fuse holder. 5x20 115V T3,15 A 5x20 230V T2,5 A P004735B Figure 172 LZN 302 14 137 (180) © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 140 Maintenance and Spare Parts Insert the fuse holder in the fuse compartment. P004805B Figure 173 Switch on the AC power. P004889A Figure 174 138 (180) LZN 302 14 © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 141 Section 5.3.1 on page 119. Fault Operational Local Mode Power On P004867A Figure 175 Mount the installation box cover and tighten the screws. Tx20 P004922A Figure 176 LZN 302 14 139 (180) © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 142 To ﬁnish the work, continue with section Section 5.5 Concluding Routines on page 170. 5.3.3 Replacement of HDSL Module Remove the front cover on the radio cabinet. P005441A Figure 178 140 (180) LZN 302 14 © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 143 R e m o t Operational R e s e t Local Mode Power On P005436A Figure 180 Switch off the AC mains power. P004888A Figure 181 LZN 302 14 141 (180) © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 144 Maintenance and Spare Parts Connect the ESD wrist strap. P005437A Figure 182 Remove the front cover on the module. P005443B Figure 183 142 (180) LZN 302 14 © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 145 Remove the installation box cover on the module. Tx10 P005337B Figure 184 Disconnect the cables to the PCM terminals from the module (PCM M1 and HDSL M3). P005471B Figure 185 LZN 302 14 143 (180) © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 146 Disconnect the conﬁguration and transmission cable from the radio cabinet (depending on conﬁguration M2, M4 or M5). P005458A Figure 186 Loosen the two ﬂange plates. Tx10 P006404A Figure 187 144 (180) LZN 302 14 © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 147 For further information on DIP-switch settings, refer to chapter Installation and Tests. Install the new HDSL module (follow the steps above in reverse order). LZN 302 14 145 (180) © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 149 Maintenance and Spare Parts Remount the front cover on the module. P005443B Figure 192 Remount the installation box cover on the radio cabinet. Tx20 P005439A Figure 193 LZN 302 14 147 (180) © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 150 Check the status of the RBS, see Table 21 on page 170. 5.3.4 Replacement of AGW Module Remove the front cover on the radio cabinet. P005441A Figure 195 148 (180) LZN 302 14 © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 152 Maintenance and Spare Parts Switch off the AC mains power. P004888A Figure 198 Connect the ESD wrist strap. P005437A Figure 199 150 (180) LZN 302 14 © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 153 Remove the front cover on the AGW module. P005443B Figure 200 Remove the installation box cover on the AGW module. Tx10 P005192C Figure 201 LZN 302 14 151 (180) © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 154 Disconnect the transmission cable from the radio cabinet (E1/T1). P005434A Figure 203 Disconnect the DC cable from the AGW module (7 V DC). P005433A Figure 204 152 (180) LZN 302 14 © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 155 Loosen the two ﬂange plates. Tx10 P005445C Figure 205 Loosen the six screws, two on each side, and two on the cable gland plate. Tx10 P005432B Figure 206 LZN 302 14 153 (180) © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 156 P006272B Figure 207 Install the new AGW module (follow the steps above in reverse order). Switch on the AC mains power. P004870A Figure 208 154 (180) LZN 302 14 © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 157 R e m o t R e s e t Local Mode Power On P005472A Figure 209 Remount the front cover on the AGW module. P005443B Figure 210 LZN 302 14 155 (180) © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 158 Remount the front cover on the radio cabinet. P005440A Figure 212 Check the status of the RBS with the new AGW module, refer to Table 21 on page 170. 156 (180) LZN 302 14 © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 159 Remove the front cover on the radio cabinet. P005441A Figure 213 Remove the installation box cover on the radio cabinet. Tx20 P005442A Figure 214 LZN 302 14 157 (180) © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 160 R e m o t Operational R e s e t Local Mode Power On P005436A Figure 215 Switch off the AC mains power. P004887A Figure 216 158 (180) LZN 302 14 © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 161 Figure 217 Remove the 3.15 A fuse and replace it with a new one. Use a nose cutting plier, or similar. P005423A Figure 218 LZN 302 14 159 (180) © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 163 Remount the front cover on the radio cabinet. P005440A Figure 222 Check the status of the RBS, refer to Table 21 on page 170. LZN 302 14 161 (180) © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 164 Replacement of the CPI board Remove the front cover on the radio cabinet. P004858A Figure 223 Removing the front cover 162 (180) LZN 302 14 © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 165 R e m o t Operational R e s e t Local Mode Power On P005318A Figure 225 Switch off the AC mains power. P004888A Figure 226 LZN 302 14 163 (180) © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 166 Maintenance and Spare Parts Connect the ESD wrist strap. P004712A Figure 227 Remove the protective cover. Tx10 P005198B Figure 228 164 (180) LZN 302 14 © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 167 Maintenance and Spare Parts Disconnect the cables from the CPI board. Unscrew the distance screw. P005203A Figure 229 Unscrew all screws. Tx10 P005201B Figure 230 LZN 302 14 165 (180) © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 169 5x20 115V T3,15 A 5x20 230V T2,5 A P004735B Figure 233 Insert the fuse holder in the fuse compartment. P004805B Figure 234 LZN 302 14 167 (180) © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 170 Maintenance and Spare Parts Disconnect the ESD wrist strap. P004712A Figure 235 Switch on the AC mains power. P004870A Figure 236 168 (180) LZN 302 14 © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 171 R e s e t Local Mode Power On P005319A Figure 237 Remount the installation box cover on the radio cabinet. Tx20 P004922A Figure 238 LZN 302 14 169 (180) © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 172 1. LED indicator FAULT is OFF. 2. LED indicator OPERATIONAL is ON. 3. RBS 2401 is in Remote mode (Local mode indicator OFF). 4. Backup copy of the RBS IDB saved on a diskette. 5. LED status on HDSL /AGW module checked.
Page 173 The “Blue tag” OMT Fault Log If there is a OMT fault log, it should be sent in with the “Blue Tag” on the faulty unit. LZN 302 14 171 (180) © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 175 Recommended for customer stock (Repairable) These parts that are intended to be replaced on site, and sent to an Ericsson Repair Centre for repair. Recommended for customer stock (Not repairable) These parts that are not repairable, intended to be replaced on site and then disposed.
Page 176 Maintenance and Spare Parts 5.6.2 Recommended Spare Parts Exploded View Loca l/ Rese t Rem ote P004923C Figure 242 174 (180) LZN 302 14 © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 177 SEB 114 110/1 SDD 513 0095/1 Cover lid Cover lid for test connection. RTK 994 368 Packing set Packing set for RBS 2401 RTK 994 471 Packing set Packing set for HDSL/AGW module LZN 302 14 175 (180) © Ericsson Radio Systems AB 2000-02-18 —...
Page 179 Glossary Glossary This glossary lists abbreviations and acronyms used in texts dealing with RBS 2401. Some basic terms and acronyms needed for cross-references are included in the list. In the RBS manuals, terminology deﬁned by Ericsson GSM System is used.
Page 180 GSM 900 GSM system 900 MHz (generic). GSM 1800 (GSM-based) Digital Communication System 1800 MHz (generic). GSM 1900 (GSM-based) Digital Communication System 1900 MHz (generic). 178 (180) LZN 302 14 © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...
Page 181 RU to enter Local or Remote mode. Modiﬁcation Handling System. Ericsson trouble report database. Mobile Station Ericsson Network Management System in DXX. Operation and Maintenance Centre. Operation and Maintenance Terminal. The OMT is a terminal that supports functions for handling the RBS on site.
Page 182 LAPD frame as a terminal connection endpoint within a Service Access Point (SAP). TEMS TEst Mobile Station. Transceiver Group. Transceiver (combined transmitter and receiver). 180 (180) LZN 302 14 © Ericsson Radio Systems AB 2000-02-18 — All Rights Reserved —...

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