RBS Installation Instructions RRU-N Second Generation INSTALLATION INSTR.
Copyright © Copyright Ericsson AB 2008. All Rights Reserved Disclaimer 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.
Contents Contents 1 Introduction 1 2 Tools and Documentation 1 2.1 Tools for Installation of RRU-N 1 2.2 Documentation 2 3 Installation RRU-N 2 3.1 Preconditions 3 3.2 Installation Procedure 4 4 Optional Installation External Splitter/Highway Function 23 Optional Installation External Hybrid Combining Unit (EHCU) 25 6 Performing Concluding Routines 27 6.1 Updating the Site Installation Documentation 28 6.
RBS Installation Instructions 50/1531-LZA 701 0001 Uen PA4 2008-07-31
Tools and Documentation 1 Introduction This chapter describes the installation of the RRU-N Second Generation, and the connection of the RRU-N to other existing site products. The RRU-N Second Generation consists of the following RRUs: 2 • RRUN8-22 • RRUN9P-22 • RRUN9E-22 • RRUN18-22 • RRUN19-22 Tools and Documentation This chapter contains lists of all tools and instruments recommended for the complete installation of the RRU-N. 2.
RBS Installation Instructions 2.2 Product Name Description Product Number Other tools needed Torque set, 0.5 – 4 Nm for bits LTT 601 145/1 Torque Set, 5 – 25 Nm LTT 601 140/1 Torque Set, 20 – 100 Nm LTT 601 141/1 Open-ended torque head (U-key) 16 mm LSB 107 12/6 Documentation The following documentation is referenced in this document.
Installation RRU-N Target Group The target group for this instruction is personnel involved in the installation of an RRU-N. 3.1 Preconditions This section provides preconditions that must be met before starting the installation work. General Preconditions Before starting site work, ensure the following has been implemented: • Site access permission received. • Ordered RRU-N, equipment, specified tools and other necessary facilities have been delivered. • Site power is available.
RBS Installation Instructions • Jumper cables • Optical fiber cable (for connection to Main Unit) If any of the above preconditions cannot be complied with, contact the site supervisor or person responsible for activity that has been missed. 3.2 Installation Procedure This section describes the installation procedure for the RRU-N.
Installation RRU-N 3.2.1 Unpacking and Checking the Material Unpack the RRU-N on-site. To avoid damage, the RRU-N should not be unpacked elsewhere and then transported to site. In order to avoid damage to the components due to electrostatic discharges during unpacking, personnel must not come in contact with the connectors of the RRU-N. Ensure that the correct material has been delivered. If the material is damaged, complain the supervisor or the transport company immediately. 3.2.
RBS Installation Instructions 1. Place the upper mounting fixture in the correct position on the pole. Note: The washers and nuts for the studs indicated in the figure must be saved for later use. P012095A 2. Fasten the washers and nuts by screwing them finger tight to the clamp bolts. Adjust the mounting fixture so that the clamp bolts run parallel on each side of the pole. Tighten the inner M10 nuts to a torque of 41 Nm using a torque wrench fitted with a 16 mm open-ended torque head.
Installation RRU-N 4. Place the lower mounting fixture on the pole, 500 mm below the upper mounting fixture. Note: The washers and nuts for the studs indicated in the figure must be saved for later use (step 8). B000087A 5. Fasten the washers and nuts until fingertight to the clamp bolts. B000088A 6. Hoist the RRU-N up to its position on the mast or pole. Attach a rope to the eyes of the RRU-N for lifting it up.
RBS Installation Instructions 7. Hook the RRU-N onto the stud bolts of the upper mounting fixture. Mount the washers and nuts on the stud bolts, and tighten them fingertight. 8. Loosen the clamp on the lower mounting fixture and lift the mounting fixture to the lower support of the RRU-N. Mount the washers and nuts on the stud bolts, and tighten them fingertight. Tighten the clamp on the lower mounting fixture fingertight.
Installation RRU-N 9. Tighten the two M10 nuts on the lower support to a torque of 41 Nm, using a torque wrench fitted with a 16 mm socket. 41 Nm 10. On each clamp bolt of the lower mounting fixture, tighten the inner M10 nuts to a torque of 41 Nm, using a torque wrench fitted with 16 mm open end head.
RBS Installation Instructions 11. If necessary, adjust the position of the RRU-N before tightening the outer nuts. Tighten the outer nuts using both a torque wrench and an open end wrench (both 16 mm), as shown in the picture. Tighten the outer nut on each clamp bolt to a torque of 41 Nm. The wrench holding the inner nuts must stay still while the outer nuts are being tightened. 41 Nm K000207A 12.
Installation RRU-N UP RBS 2111 V2 RRUN 316 20 20 36.5 36.5 20 wall mounting drill template 1:2 10x 3 HOLE K000347A Figure 2 Note: Measurements for Hole Positions Bolts or plugs, for securing the wall brackets to the wall are not delivered with the unit. These must be specified and purchased by the site engineering department.
RBS Installation Instructions 2. Drill the mounting holes in the wall, and insert a plug into each hole. Use the depth restrictor, fitted to the hammer drill, to regulate the depth of each hole. Note: An industrial vacuum cleaner should be used for removing dust and debris created during drilling. 3. Position the upper and lower bracket over the drilled holes and insert the bolts or nuts.
Installation RRU-N 5. Mount the washers and the nuts onto the stud bolts on the upper bracket. Tighten the M10 nuts to a torque of 41 Nm, using a torque wrench fitted with a 16 mm socket. Note: Due to restricted space, use a 3/8-inch 250 mm extension bar. 6. Insert the bolts into the nuts on the lower brackets. Tighten the bolts to a torque of 41 Nm, using a torque wrench fitted with a 16 mm socket. Note: Due to restricted space, use a 3/8-inch 250 mm extension bar. 3.2.
RBS Installation Instructions 1. Route the grounding cable from the site grounding system to the RRU-N grounding point. 2. Loosen the M8 nut and connect the ground cable according to the figure below. The washer must be placed between the bolt and the cable lug of the grounding cable. Tighten the nut to 15 Nm, using a torque wrench fitted with a 13 mm socket. K000352C 3.2.
Installation RRU-N 3. Cut the power supply cables to the appropriate length. 4. Strip approximately 60 mm of the outer layer of insulation from the power cable, as shown in the picture. Leave approximately 10 mm of the inner conductors. 5. Remove the cable gland nut from the cable gland using a 24 mm open-ended wrench. Remove the protective plug and the inner seal from the cable gland (marked PWR).
RBS Installation Instructions 6. Route the cable through the nut, the inner seal and the gland of the RRU-N. Wrap the cable shield around the lower part of the inner seal as shown in the picture. Turn the inner seal so that the guide lines up with the grove, and then insert it into the gland. Do not tighten the gland yet. PW R K000475B Note: Ensure that the cable has already been attached to the pole, mast or wall with cable ties or straps.
Installation RRU-N 8. Fasten the cable gland nut and tighten it properly using a 20 mm or 24 mm open-ended wrench. Ensure that the cable gland is sealed. PW R 5 Nm K000351C 9. Fit the RRU-N panel into position and tighten the captive screws to a torque of 1.7 Nm, using a torque driver fitted with a Torx bit T20. ! K000348B 3.2.6 Connecting Optical Fiber Cable and Setting RRU-N Configuration Caution! Stop! This product contains components sensitive to ESD.
RBS Installation Instructions 1. Loosen the four captive screws on the right panel of the RRU-N, and release the panel. Note: The right panel is attached to the RRU-N by means of a short cord, so the panel can be released and allowed to hang free. ! K000348B 2. Loosen the optical fiber cable gland nut from the cable gland, using 18 mm open-ended wrenches. Note: The available cable end to be used is labeled RRU-N. 3.
Installation RRU-N 4. Route the fiber optical cables to the connectors inside the RRU-N as shown in the picture. Remove the protective caps on the fibers and the connectors. Insert the cable into the specified connectors of the RRU-N. Test Local Reset TX Note: Don't touch the end of the optical connectors after the protective caps are removed. RX R T Note: The cables are fiber optic and must be handled with care. The minimum allowed bending radius for the fiber optical cables is 50 mm. 5.
RBS Installation Instructions 3.2.7 Connecting Antenna Cables Caution! Stop! This product contains components sensitive to ESD. Use an approved ESD wrist strap, connected to the product grounding point, to avoid damaging these components. Note: The antenna system must have been tested. For more information, see Verifying Antenna Systems, 1/1532-LZA 701 0001.
1. Remove the protective caps of the antenna connectors (marked ANT1 and ANT2) at the bottom of the RRU-N. Connect the antenna cables to the connectors. Tighten them to a torque of 2.7 Nm, using a torque wrench. l a n lt o u ti de Fa era o p m O al c o L off F R Installation RRU-N PWR OPT K000356B Start to apply the self-amalgamating (self-fusing) tape approximately 50 mm below the lower edge of each connector. Overlap each turn by 50%. Proceed all the way up to the edge of the RRU-N. l a 2.
RBS Installation Instructions 1. Attach the cord from the RRU-N to the inside of the front sunshield as shown in the picture. K000365B 2. Attach the front sunshield by pressing it carefully on both sides and slide down into the fixed position. K000362D 3. Push the buttons of the rear sunshield forward to lock the RRU-N.
Optional Installation External Splitter/Highway Function 4 Optional Installation External Splitter/Highway Function Caution! Stop! This product contains components sensitive to ESD. Use an approved ESD wrist strap, connected to the product grounding point, to avoid damaging these components. Note: The antenna system must have been tested. For more information, see Verifying Antenna Systems, 1/1532-LZA 701 0001.
RBS Installation Instructions 3. Remove the protective caps of the antenna connectors (marked ANT1 and ANT2) on the RRU-N and on the splitters. Connect the antenna cables to the connectors of the splitters. Note: The allowed minimum bending radius must be taken into consideration when installing and connecting the antenna cables.
Optional Installation External Hybrid Combining Unit (EHCU) 4. Start to apply the self-amalgamating (self-fusing) tape approximately 50 mm below the lower edge of each connector. Overlap each turn by 50%. Proceed all the way up to the edge of the splitters. Vary the stretching of the tape and avoid spaces. 5. 5 Apply two, half-overlapped, slightly-stretched layers of electrotape.
RBS Installation Instructions 1. Enter the free ends of the clamps into the openings in the mounting bracket and pass them through as shown. The diameter of the pole may very between 40 and 160 mm. Note: The two pieces of pole clamps must be ordered separately. K000418B Apply the clamps around the pole. Insert the free end of the clamp into and trough the screw-nipple. Tighten the screw to 5.5 Nm. ANT A 2.
Performing Concluding Routines 3. Connect four jumper cables between the RRU-Ns and the EHCU. K000423C 4. Install the two jumper cables to the EHCU antenna connectors. Antenna 1 C+D Antenna 2 A+B EHCU A B C D K000423D 6 Performing Concluding Routines This chapter describes the routines to be completed before leaving the site. Note: Ericsson strongly advises that when cleaning up after installing the RBS, the personnel performing the installation pay particular attention to the environment.
RBS Installation Instructions Table 2 Objects to Be Recycled or Disposed of After RBS Installation 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 Pieces of cable Nuts, bolts, washers and screws Note: 6.
Verifying the Installation Check the following: 7 3. The site is clear of waste materials. 4. The Site Installation Documentation is updated. 5. The modified Site Installation Documentation has been handed over to the person responsible for the site. 6. The RBS is powered up if the surrounding temperature changes between hot and cold and the RBS installation is not completed within 48 hours.
