2 RRU,DBS and BTS Introduction and Hardware Installation

Security Level: Internal

2G/3G BTS DBS RRU TMA Installation Introduction

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Quality Department

HUAWEI TECHNOLOGIES CO., LTD.

Huawei Confidential

Objectives  Master the features of the Equipment  Master the hardware installation method of

RRU, DBS, BTS and TMA  Master the hardware installation method of the

cables of the RRU


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Reference

 « Huawei DBS Hardware Installation »  « Huawei BTS Hardware Installation »  « RRU User Guide »


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Appearance of the RRU

Note: The mounting brk position of the RRU can be changed HUAWEI TECHNOLOGIES Co., Ltd.

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RRU Main Function  The RRU receives RF signals from the antenna system, down-converts the RF signals to IF signals, and then transmits them to the BBU or the macro NodeB after amplification, analog-to-digital conversion, digital down-conversion, matched filtering, and Digital Automatic Gain Control (DAGC).  Support 12dB, 24dB gain TMA  RTWP statistic and report  Interference scan function  Standing wave detect and report (VSWR if a problem sweep remove fly lead and sweep to antenna)  Support ASIG (Antenna Interface Standards Group) 2.0  Receiver reference sensitivity typical value -125.5dBm

 Intermodulation sensitivity -115dBm


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Appearance and Panels of RRU


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LEDs on RRUs Label

Color

Status

Description

RUN

Green

ON

The module has power input, yet the module is faulty

OFF

The module has no power input or is reporting alarms

1s on, 2s off

The module is operational

0.5s on, 0.5s off

Software is being loaded to the module

ON

The module is reporting alarms (excluding VSWRrelated alarms

OFF

The module is operational

ON

The module is running

OFF

No specific meaning

ALM

TX_ACT

Red

Green


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LEDs on the RRU Label

Color

Status

Description

VSWR

Red

ON

VSWR-related alarms are reported

OFF

No VSWP-related alarm is reported

ON (green)

The CPRI link is normal

ON (red)

The optical module receives local alarms related to LOS

0.5s ON, 0.5s OFF (red)

The CPRI is out of lock

OFF

The optical module is not in position or is powered off

ON (green)

The CPRI link is normal

ON (red)

The optical module receives local alarms related to LOS

0.5s ON, 0.5s OFF (red)

The CPRI is out of lock

OFF

The optical module is not in position or is powered off

CPRI_ W

CPRI_E

Red/g reen

Red/g reen


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RRU Installation RRU hardware installation consists of:

Installing three RRUs


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RRU Installation • Installation of RRU 1. The RRU replaces the TMA’s 2. Use existing fly leads from Ant to TMA’s 3. Ensure using a torque wrench to connect the fly leads to RR’s 4. Use existing Labels on fly leads 5. Connect the power cable supplied to each RRU 6. Connect the Optical cable supplied to CPRI W port


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RRU Installation


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RRU Installation


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Installing the PGND cable of RRU  Connecting the PGND cable (only RRU is installed)

The green and yellow PGND cable is a single cable with a cross-sectional area of 16 mm2. Both ends of the cable are OT terminals to connect to the grounding

bolt on the RRU module. If you prepare the cable by yourself, it is recommended to use a copper-based cable with a minimum cross-sectional area of 16 mm2.

PGND


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Installing the Power Cable of RRU 1: Measure the length of the cable route It is better to measure the length of power cable before cutting, sometimes the survey info is not correct. You can get the cable length info from the cable marker. Use a measuring tape or first use one power cable and route it to the correct position before cutting the power cable. Then repeat the process over for the remaining two sectors.


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Installing the Power Cable of RRU

2: Put color rings You must put a color ring on the power cable when you are starting to install the power cable. Each ring for every sector to ensure that the sectors are not swapped. One ring for sector one. Two rings for sector two. Three rings for sector Three. This must be done to avoid sector swap at either end of the connection.


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Installing the Power Cable of RRU

3: Surge Protection Straps Make sure that the surge protection straps are installed correctly. Seal the connection correctly according to the connector sealing specification. If the kits are not supplied write it in the Site file for follow up and retrofit. Inform the QA department for monitoring process.


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Installing the Power Cable of RRU  RRU only support the -48V DC power cable Step 1: Route the power cable. One end of the cable is two OT terminals, and the other end is bare. The OT terminals need to be made on site. Use the correct crimping tool. Take a photo of the procedure.


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Installing the Power Cable of RRU Step 2: Add two OT terminals to one end of the power cable A. Determine l the lengths of power cable for different operation according to the scales on the cover plate of the cabling cavity as shown:

B. Based on the determined lengths, remove the jacket and shielding layer from the power cable. Then remove the jacket of a specified length from each wire.

D. Remove about 15mm jacket from the power cable

C. Add an OT terminals to each wire


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Installing the Power Cable of RRU Step 3: Remove the waterproof fillers from the cable troughs of the cabling cavity. Route the power cable along its dedicated cable trough. Place the waterproofing fillers not used back into the openings. Take a photo..


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Installing the Power Cable of RRU Step 4: Open the cover over the terminals for the power cable


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Installing the Power Cable of RRU Step 5:Remove the screw on the strap labeled PGND. Step 6: Press the strap on the exposed shielding layer of the power cable, then tighten the screw.

Step 7: Connect the OT terminal on the blue -48V DC wire to the terminal labeled NEG(-). Connect the OT terminal on the black or brown GND wire to the terminal labeled RTN(+). Then tight the screw. Step 8: Close the cover. Step 9: Bind the -48V DC power cable to the binding slot in the lower angle piece.


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Installing the Power Cable of RRU Step 10: Connect the other end of the power cable grounding. a. Remove about 50mm jacket from the power cable. b. Twist the shielding layer of the power cable into one strand, and then wrap the strand with heatshrinkable tube of Ф5.

d. Wrap the power cable with the heatshrinkable tube of Ф14 at the point where the shielding layer is removed . f. Connect the PGND cable to the shielding grounding bar of power supply equipment. g. Add OT terminals to the blue –48 V wire and the black GND wire, and then connect the OT terminals to the wiring terminals on the power supply.

C. Add a OT terminal to the other end of the PGND cable.


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Installing the Power Cable of RRU Step 11. DCDU-03 Connect the RRU power cable to one of the LOAD0 to LOAD6 (12amp) terminals on the DCDU-03.


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Installing the Power / Optic Cable of RRU


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Installing the Power / Optic Cable of RRU 1.Opening and Closing the Cover Plate of the RRU Cabling Cavity


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Opening and Closing of the lid


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RF Jumper of the RRU  The RF jumper of the RRU is of two types  Antenna jumper: transmits and receives RF signals. Both ends of the antenna jumper have DIN connectors.  Ensure to seal the connectors according to the TMA and RRU specification.

Waterproofed Joints


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Installing the Optic Cable of RRU 1: Put color rings You must put a color ring on the fiber cable when you are starting to install the fiber cable. Each ring for every sector to ensure that the sectors are not swapped.

2: Protect the connector We must place protection for fiber cable, because it is easy to damage the fiber connectors. Do not bend the fiber pig tail it will get damaged.


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Installing the Optic Cable of RRU

3: Clamp Installation Clamps has to be installed inside a tower unless specified and all ways on a lattice tower from the RRU to the entry plate.


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Installing the Optic Cable of RRU

4: Fiber / Clamp Installation All ways ensure that the rubber insulation is installed taking great care. Fasten the clamps as firmly as possible. It must be installed in a straight line.


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Installing the Optic Cable of RRU 5: Fiber entry plate All ways ensure that the cables are sealed correctly at the entry plate. It needs to be fed through a coupling. When removing the feeders from the gland plate ensure to seal them correctly.

6: Fiber Preparation Ensure that the optic Fiber is pulled up the tower at the same rate. Do not allow it to kink or twist. The fiber needs to be installed in the clamps in a straight line without any twists.


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After Photos Photos 1. 2. 3. 4. 5.

Take photos of the installation of the RRU’s. Take photos of the Optic Cable in the CPRI W position and power cable installation. Take Photos of the earth cable. Take photos of the sealing of the fly leads. Take photos of the labels.


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DBS Hardware Installation Cabinet Placement 3G expansion will be mostly software license expansion, but if a new cabinet has to be installed, the second 3G NodeB cabinet will be stacked up on the first 3G cabinet.


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DBS Hardware Installation 1:Move the Node B Move the Node B forward after it has been loosened from the u rail.

2: Move the U Rail Move the u rail to fit the template provided.


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DBS Hardware Installation 3: 3G Cabinet Installation Before installing the cabinet make sure that the grid are installed correctly and firmly as specified by the site supervisor and as per photo.

4: 3G Cabinet Installation After assembling the cabinet according to the assembly instructions. Place the cabinet in the correct position as specified by the Site Supervisor and site installation standard. Ensure that the cabinet is fastened securely to the C Profile. HUAWEI TECHNOLOGIES CO., LTD.

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DBS Hardware Installation 5: CB Connection Connect the power cable in the correct manner to the CB. Always double check electrical installations.

6: Cable routing inside DB Board Routing to be done neatly and according to the electrical specifications. Use the correct tools when working on the DB board.


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DBS Hardware Installation 7: Cable routing inside trunking Rooting to be done neatly and according to the electrical specifications.

8: Cable routing Routing to be done neatly and according to the electrical specifications. Route it neatly down the cable tray in the correct position.


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DBS Hardware Installation 9: OT Connection Clean the wire correctly. Place the correct lug 25mm Power Cable. Use the correct crimping tool and crimp the lug and pull for security. No exses copper wire may be seen.

10: Connection safe Use the black heat shrink to secure and cover the open connections.


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DBS Hardware Installation Equipment Placement

• • •

•


Install the equipment according to the placement indicated in the Photo. BBU installation of DBS NodeB DBS rack has 10U space. BBU3900 will occupy 2U space and DC box will occupy another 1U space. 5U space can be used future expansion. indicates the BBU installation position or as specified by the standards.

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DBS Hardware Installation


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DBS Hardware Installation Power Cable Connect the OT terminal of the power cable to the LOAD7 or 8 (6amp) terminal on the DCDU, and then fix the 3W3 connector of the power cable to the PWR port on the BBU

Load 7 or 8


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DBS Hardware Installation •

Install the CPRI optical cable  Connect one end of the optical cable to the CPRI0, CPRI1, or CPRI2 port on the GTMU panel of the BBU and the other end to the CPRI_W port on the RRU.  Insert the optical module into the CPRI0, CPRI1, or CPRI2 port, and then turn outwards the puller on the optical module.  Insert one end of the CPRI optical cable into the optical module, and then lead the CPRI optical cable out of the cabinet along the right side of the cabinet.  Wrap the fiber tail with the winding pipe.  The TX port on the BBU is connected to the RX port on the RRU; the RX port on the BBU is connected to the TX port on the RRU


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After Photos Photos 1. 2. 3. 4. 5.

Take photos of the position of the cabinet. Take photo of the equipment. Take photo of the power connection. Take photo of the RRU power connection. Take photo of the BBU optic cable connection.


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E1 Installation •

Install the E1  Connect one end of the E1 cable to the E1/T1 port on the GTMU, and then lead the other end out of the cabinet along the right side of the cabinet.  Fix the DB26 connector of the E1 cable to the E1/T1 port on the GTMU.  Take note that on the 3G installations 2E1 Cables are required at all times. Make sure that it is supplied.

E1 Cable


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E1 Installation 1.Strip the jacket off the E1 cable near the grounding point at the lower right corner of the cabinet to expose the shielding layer. 2.Thread the E1 cable through the grounding clip. Then, tighten the screw on the grounding clip to make the shielding layer of the E1 cable in full contact with the grounding clip. Finally, connect the grounding cable on the grounding clip to the grounding screw on the cage.


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E1 Installation

E1 Installation Ensure that the connection is done correctly and to the correct Krone Block according to the connection diagram.


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2G hardware Installation Cabinet Placement 1.

2.


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2G expansion cabinet will be stacked on the first 2G BTS cabinet. In the scenario the two 2G BTS cabinets can’t meet the requirement of huge capacity expansion, the third 2G cabinet will be near the 3G Node B.

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2G hardware Installation Possible Installation 1.

2G installation could be stacked one on top of the first cabinet.

2. shows the cabinet position. The 150mmdistance shall be remaining for heat loading and easyoperation of future cabinet expansion.


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2G hardware Installation 1: Free Equipment Un fasten all ancor screws on the equipment specified to be swapped.

2: Free B mon’s Un fasten the B mon’s and pull away from the mounting grid.


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2G hardware Installation 3: Move Equipment Pull the equipment away from the wall and of the U rails.

4: U rail Installation Place the template on the U rails and fasten the U rails to the floor.


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2G hardware Installation 5: Base plate Installation Place the BTS base plate on the U rail and secure it tightly with the correct bolts supplied are the correct torque.

6: Wire Grid Fit the grid against the wall as specified with all swaps.


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2G hardware Installation 7: BTS Placement Place the BTS 3900 on the base plate.

8: Cable routing Run the power cables to the DB board secure the cables according to the specification for installation of a CB. Do not use the cable indiscriminately and measure the correct length before cutting.


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2G hardware Installation 9: CB Connection Connect the power cable in the correct manner. Always double check electrical installations.

10: Power Cable Routing Routing to be done neatly and according to the electrical specifications. Use the correct tools when working on the DB board.


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2G hardware Installation 11 : OT Connection Clean the wire correctly. Place the correct lug 25mm Power Cable. Use the correct crimping tool and crimp the lug and pull for security. No exes copperware may be seen.

12: Connection Safe Use the black heat shrink to secure and cover the open connections.


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2G hardware Installation 13: Routing Do not bend the cables to tight around the sharp edges of the cabinet.

14:DCDU Power Connect the power to the DCDU securely and according to the specification.


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2G hardware Installation 15 a: 2G BBU Continue with the power connections until all is correctly completed. Switch the power on in the correct sequence.

15 b: 3G BBU Continue with the power connections until all is correctly completed. Switch the power on in the correct sequence.


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2G Hardware Installation 16: a Install the EMUA monitoring signal cable If the MON1 port on the BBU is available, fix the RJ45 connector of the EMUA monitoring signal cable to the MON1 port on the UPEU and the DB9 connector to the corresponding port on the EMUA.

BBU


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2G Hardware Installation 16: b Alarm cables Connect the alarm cable as in the photo. Connect connector 1,2,3 and 4 for as follow. 1: in Ext Alm 0 2: in Ext Alm 1 3: in Ext Alm 2 4: in Ext Alm 3


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2G hardware Installation 17: Jumper Installation for BTS On certain sites, the indoor jumper will be between BTS and combiner, while some sites the jumper directly connects BTS with B mon. The actual connection and jumper length will be decided based on survey result.


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2G hardware Installation Connector

Type

(A) Connector of Feeder/Bom/Combiner

DIN-7/16’-Straight-Female

(B) Connector of jumper

DIN-7/16’-Straight-Male.

(C) Connector of BTS/NodeB

DIN-7/16-Female

(D) Connector of jumper

DIN-7/16’-Right Angle-Male.


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2G hardware Installation 18: RF Connection Ensure that the tools used are correct or calibrated to spec to ensure that the connectors will be assembled correctly. Do the connection on the BTS side first. Double check that the length is correct before cutting the Rf cable. Place the connectors on the Radio’s and do the feed to the Bmon’s to secure position.

19: RF Connection Now do the B mon side of the RF connection. Ensure that the tools used are correct or calibrated to spec to ensure that the connectors will be assembled correctly.


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2G hardware Installation 20:Preperation The Cut and clean must be done correctly. This will ensure that the connection of the connector is done correct the first time.

21: Connector assembly Place the connector firmly on the RF cable. Screw it in clock wise about three turns. Feel connector should be firmly in place.

22: Connector Secure Tighten the nut in the back of the connector. Then tighten the locknut. The connector should be firm.


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2G hardware Installation 23: Sweep Preparation Now you power down the equipment and loosen the RF connectors.

24: Equipment Movement Remove the equipment from the container. Do not damage any equipment at any stage.


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2G hardware Installation 25: Before Sweeps Do the sweeps of the old equipment and save every sweep.

26: Old RF Disconnect Disconnect the old RF cables at the B mon side after the sweeps are complete.


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2G hardware Installation 27: New RF Connection Connect the new RF cables to the B mon.

28: After Sweeps After the connectors had been torque do the sweeps again to ensure correct installation. Save the Before and after sweeps as this must be handed in with the Site File.


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2G hardware Installation 29: Power on Radios Ensure that the connector torques are done at the radio side. Then switch the radios on from sector 0 1 2.

30:Alarm Cable Make sure that the alarm cable connection on the EMUA has been don correctly. Connect the alarm cables to the existing plugs and correct connection will be verified as soon as the alarms are tested.


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3G TMA hardware Installation Fly lead Connection None of the existing TMA’s will be re-used, the connectors of new TMA’s will also be Female and the existing outdoor jumper will be re-used.


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3G TMA hardware Installation Connector

Type

(A) Connector of jumper (antenna side)

DIN-7/16’-Straight-Male

(B) Connector of TMA (antenna side)

DIN-7/16’-Female

(C) Connector of TMA (Equipment side)

DIN-7/16-Female

(D) Connector of jumper(Equipment side)

DIN-7/16’-Straight-Male.


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3G TMA hardware Installation 1: Waterproof and Airproof for outdoor connector Installation team should apply the waterproofing and airproof treatment to the outdoor connectors immediately after the installation.

2:Materials: 1. PVC insulation tape; 2. Rubber tape (3M 1.6mm*50mm rubber tape or Bishop [Plymouth] 1.65mm*51mm rubber tape)


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3G TMA hardware Installation 3: Installation specification 1. Clean the feeder and connectors. 2. Wrap 2 layers of PVC tape before wrapping the waterproof tape for the convenience of removing the tapes. 3. Uncoil the waterproof-insulating tape. Stick the end of the tape to the feeder at the point 2 to 5 cm above the connector. Note that the glued side should face the feeder. 4. Stretch the tape until it is as 3/4 to 1/2 wide as its original shape. Make sure that the stretched width is at least 1/2 of the original width, otherwise over-stretching may damage the molecular structure of the tape and lower its reliability. 5. Wrap up the feeder spirally upward while maintaining this stretching strength. Make sure that the overlapping area of adjacent tape layers is 1/2 of the stretched width, as shown below. 6. When wrapping to the point 2 to 5 cm under the connector, reverse the direction to let the wrapping goes back towards starting point. In this way, the feeder is wrapped up with 2 layers of waterproof tape. 7. After wrapping, squeeze the tape stuck to the feeder to make sure no air remains between the tape layers. 8. After wrapping the waterproof-insulating tape, it is necessary to wrap it up with PVC tape to prevent the wearing and aging of the waterproof-insulating tape. 9. The wrapping of PVC tape is similar to that of waterproof-insulating tape. Start wrapping spirally upward with 1/2 width of overlapping between adjacent layers. Reserve the wrapping direction to make 2 layer PVC tape cover. Make sure to maintain the stretching strength.


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Labels Ensure that the labeling on the B mon’s are fitted and correct.

Ensure that the Labeling on the Radios are fitted and correct.


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Labels Ensure that the labels leading into the DB Board are done and correct.

Ensure that the labels on the PDCA is done and correct on the DBS side.


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Labels Ensure the labels are correct and fitted at the Power connection at the cabinet.

Ensure the labels are correct and fitted on the optics.


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Thank you www.huawei.com

2 RRU,DBS and BTS Introduction and Hardware Installation

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