Document No.Product NameBTS3012A

Document UsersCustomer/engineer/cooperation partnerProduct Version

Written byWireless Product Engineering DepartmentDocument VersionV2.0

Preparation Guide for BTS3012A Outdoor Base Station Installation

Huawei Technologies Co., Ltd.All rights reserved

Table of Contents

1Chapter 1 Foreword

2Chapter 2 Brief Introduction to Huawei Installation Procedure

3Chapter 3 Requirements of BTS3012A Installation

33.1 Introduction to BTS3012A

53.2 Hardware Configuration of BTS3012A

7Chapter 4 Preparation Guide for BTS3012A Engineering Construction

74.1 Selecting Location for the BTS3012A

84.2 Preparation for BTS3012A Engineering Construction

84.2.1 Preparation for Groundwork of BTS Installation Position

104.2.2 Preparation for Grounding & Lightning Arresting System

124.2.3 Introduction of External Power Supply

134.2.4 Transmission Import

144.2.5 Installing Preparation for ( Type Support

Chapter 1 Foreword

Dear customers, thank you for choosing Huaweis product--BTS3012A Outdoor Base Station (BTS). In order to achieve a better cooperation and to make the work go on smoothly, we compile the Preparation Guide for the BTS3012A Outdoor Base Station Installation to help you finish the preparation. We hope you can make all the preparations according to the guide before the engineers and technicians of Huawei reach the site and begin to work. So that we can put the equipment into operation as soon as possible, and achieve good social and economic returns.

Before the concrete installation, you should get to know the following proceedings:

After you have finished all the installation preparation, please contact the Huawei Regional Office. Then Huawei will arrange related engineers and technicians for the installation.

For some reason, in case the concrete installation has been carried out while the installation preparation has not been completed, you are responsible for arranging related personnel to finish the unfinished part as soon as possible to ensure that the project goes on wheels.

For some reason, in case the concrete installation has been carried out while the installation preparation has not been completed, Huawei, according to the concrete situation, has the right to suspend the project if the project cant be carried on because of the inadequate preparation., Then both parties can negotiate to continue the engineering, after full preparation has been made You can consult the local (local province or local region) Huawei Regional Office anytime, if you have any question during the installation preparation period.Local Huawei office address___________________________Local Huawei office Tel/Fax____________________________Local Huawei office person in charge/Tel__________________

Chapter 2 Brief Introduction to Huawei Installation Procedure

In order to get a better understanding and cooperation for both sides, here is a brief introduction to Huaweis equipment installation procedure. The procedure will be taken into operation once the contract takes effect and will be carried on into the equipment final acceptance test, and then shifted into maintenance procedure. Procedures are as follows: This shows that a successful engineering needs close cooperation between Huawei and its customer. Here lets celebrate our successful completion of the project in advance.

Chapter 3 Requirements of BTS3012A Installation

3.1 Introduction to BTS3012A

BTS3012A, based on the mature technology of the Indoor Base Station BTS3012, integrates the air-conditioner/heat exchanger, storage battery, transmission mode and monitoring system into one cabinet, forming a complete BTS system which can meet the outdoor equipment protection standards and can work independently. The whole system structure of BTS3012A is illustrated in the figure bellow

Figure 3-1 Overall structure of BTS3012A system

BTS3012A has the following features besides those the indoor BTS has.

Adopting the dedicated outdoor cabinet, which meets the IP55 protection requirements and can work under various outdoor environments.

Adopting anti-theft design for the cabinet, which bears good anti-theft performance.

Reserving installation space for the transmission equipment inside the BTS3012A cabinet, supporting built-in microwave, HDSL or SDH transmission equipment, which can meet customers transmission requirements under various external condition.

According to the operating requirements, built-in storage battery and external storage battery cabinet are available. The built-in battery can provide 100AH discharging capacity, while large capacity battery of 650AH can be configured for the external battery cabinet to prolong the electricity backup time after power-off. The electricity backup time may surpass 4 hours if the BTS3012A is in full configuration.

Supporting remote software loading, and remote and near-end software maintenance.

With the environment monitoring function, built-in smoke sensor, temperature sensor, water control sensor and access control sensor, whether there is alarm can be monitored at the remote end.

3.2 Hardware Configuration of BTS3012A

12 TRX, 6 CDU/SCU, 6 PSU, 1 TCU, 1 TMU, 1 ABB, 1 PMU and a group of 100Ah storage batteries can be configured for BTS3012A single cabinet. Inside the cabinet, there is also a reservation space (W19"(H5U) for the transmission equipment.

Figure 3-2 Front view of BTS3012A

Figure 3-3 BTS3012A installation top (left) view

Chapter 4 Preparation Guide for BTS3012A Engineering Construction

4.1 Selecting Location for the BTS3012A

When selecting a location, the first thing to come is to guarantee that the station has a good coverage effect, then to guarantee that the station can function stably in long terms. Though BTS3012A can work outdoors under all weather, in order to prolong its working life, the BTS should be kept in a good operation environment.

1) The operator should select the location within the permission of the network planning, and should be responsible for negotiating with the owner on the selected location to get the site construction and use right. Usually, the location is selected near to the covering target. Open place like village, town and roadside, is easier to rent and it also can meet the mounting-height requirement of the coverage.

2) The BTS should be located in a place where the traffic is convenient, the commercial power is easy to import, the environment is safe and fertile land should be less occupied. The location should be far away from high power radio launcher, radar station or other interference sources, and the interference field strength should not surpass the equipment the shielding indices toward the unwanted radiation.

3) The BTS must be in good connection with the transmission link of the Base Station Controller (BSC). When installing the wire tower, microwave transmission can be adopted, but the tower must be high enough to see each other with the opposite end.

4) The installation position of the BTS must be flat (the flat area should be no less than 5*5 m) and have certain bearing capacity to bear concrete groundwork construction. It cant be located at low-lying, humid and water-leaking place and its also not suitable if the position is located at a place where landslide is easy to happen, rocks lies underground or the ground is uneven.

5) The BTS should not be located at the environment where the temperature is high, the air contains poisonous gas or is full of dust, or nearby the tindery and easy-exploded goods or the air pressure is low. The BTS should also be far away from the place where shocking shakes or deafening noises often take place. Nearness to transformer substation should be avoided, too.

6) The BTS adopts 220VAC power supply. Though a big range of the voltage variation is permitted, its also better to select a place where the power supply is stable.

7) As to the BTS planning to install on the building, considering there may be some difficulties in transporting, hoisting, installing the BTS, and the bearing capacity of the building, we recommend to rent the equipment room in the selected building and choose Huawei BTS312 indoor BTS for the construction.

4.2 Preparation for BTS3012A Engineering Construction

4.2.1 Preparation for Groundwork of BTS Installation Position

When installing BTS3012A outdoors, a concrete pedestal on the ground is necessary for the installation of the TBS3012A cabinet and storage battery cabinet. Its recommended that the area of the concrete pedestal be 3200mm*2000mm. See figure below:

Figure 4-1 Schematic drawing of BTS3012A outdoor installation

Figure 4-2 Schematic drawing of BTS3012A cement pedestal

Explanations towards the construction sequence of the concrete pedestal:

1) Digging the footing groove: select a firm groundwork and dig the footing groove at 5m*4m*0.4m(L*W*H)

2) Leveling and tamping: fill the bottom of the groove with gravel, then level and tamp it.

3) Concrete casting: cast the pedestal after prepared and fully mixed the concrete according to the mixing percentage. The surface of the pedestal should be even and smooth. If the soil of the groundwork isnt good enough, a 14@200 bi-directional steel bar should be added to the bottom of the pedestal.C20 concrete mixing percentage bellow is for reference

MaterialsWater(kg)325# cement(kg)Middle sand0.5~4.0cm gravel(kg)

Material usage for each m 1803836061231

4) Pedestal maintenance: the upper construction on the pedestal should be carried out after 28 days maintenance towards the pedestal. If the engineering is urgent, high-early reagent can be used to shorten the maintenance period.

5) In order to prevent sluicing around the pedestal, barrel-drains should be dug around the pedestal after it was cast.

4.2.2 Preparation for Grounding & Lightning Arresting System

The ground system of the BTS3012A BTS is very important. In order to guarantee the equipment runs safely, the basic grounding facilities must be laid out before the installation begins to guarantee smooth engineering. Because the BTS3012A adopts outdoor installation, usually a concrete pedestal should be cast on the ground. If the soil is loose, wet or the ground resistance rate is low, its recommended to lay the grounding grid under the concrete pedestal. If the inside of the pedestal adopts steel bar, the grounding should be soldered with the steel bar. If the pedestal is located at a place where the soil electric conductibility isnt good or where the place is a rocky area and lacks soil, its recommended to lay the grounding near to or far away from the concrete pedestal, where it can meet the ground resistance requirement. Then conduct the grid to the ground near to the BTS through galvanized flat steel (not less than 40mm*4mm).

Specific laying of the ground grid:

1) According to the mobile BTS lightning-proof and grounding regulation of the Ministry of Information Industry, the ground system should adopt grid-like shape in priority. The grid shouldnt be smaller than 3m*3m.The vertical grounding bodies are set at the junctions of the grid. The horizontal connectors (horizontal grounding bodies) of the grid are soldered to the vertical grounding bodies. The soldering length is twice of the overlapping length and the soldering point is at 200mm from the top of the vertical grounding body.

2) The burying depth of the grounding body shouldnt be less than 800mm (the length from the top of the vertical grounding body to the ground); The distance between grounding bodies shouldnt be shorter than 1.5 times the length of the body itself.

3) Symmetrically soldering and educing two grounding lead-in cables from the grounding grid. The length of the cables should be no longer than 30m and the distance between the two soldering points shouldnt be shorter than 5m.

4) Each soldering point should be anti-corrosion processed.

5) The ground resistance should be less than 5 ohm and the test method should meet the requirements of YD2011-93 Appendix B. In order to reduce the ground resistance, chemical resistivity reduction mixture is recommended, but not salt.6) The ground system can also employ other shapes because of the restrictions of other conditions like topography etc. But measurements must be adopted to equalize the voltage in the place where human and animal activities are very common.

7) Requirements to the grounding materials:

Vertical grounding body: 50mm hot galvanized steel pipe, length: 2000mm or 50*50*5mm hot galvanized angle steel, length: 2000mm

Horizontal grounding body: 40*4mm hot galvanized flat steel, length: according to the requirement

Grounding lead-in cable: 40*4mm hot galvanized flat steel, length: according to the requirement.

Besides, the grounding system of BTS3012A BTS includes the grounding of the antenna support, the grounding of the stay-wire towers and the grounding of the cable rack etc. Among which, the requirement towards the protective angle from the antenna support or stay-wire towers to the arrester of the antenna is 45 in plain area; and it is 30 in mountain and thundery areas. It would be better for the lightning rod lead of the support or the stay-wire tower to adopt 40mm*4mm galvanized flat steel. Solder this steel with the flat steel of the grounding point of the grounding grid and perform the anti-corrosion processing.

Grounding strip should be set up when installing BTS3012A outdoors. The grounding bar can be fixed on the ( support. Before entering the cable-through window, the BTS feeder cable, power cable, E1 signal cable or the metal strengthened chip of the optical cable, etc. must be grounded through this strip reliably, and the connection points must be performed with anti-corrosion processing.

Figure 4-3 Schematic drawing of BTS3012A grounding network structure

4.2.3 Introduction of External Power Supply

1) Voltage requirement

BTS3012A adopts 220V AC power supply

220V operating voltage range: phase voltage150V~300VAC/47~63 Hz

2) Power supply capacity requirements

User should provide the power supply capacity that meets the requirements according to the actual configuration. See the following data for reference,

VersionTheoretic Max. power when heat dissipating (W)Theoretic Max. power when heating (W)Theoretic Max. power in normal stateRemarks

Air-conditioning type5,1006,1003,500

Heat exchanger type(storage battery cabinet unconfigured)3,9006,1003,500

Heat exchanger type(storage battery cabinet configured)5,1007,3005,100Charging power of the storage battery cabinet increased by 12000W

3) Preparation for the introduction of external power supply

The introduction of the external power supply can be achieved via each of the following methods: 1. introduce the power from neighboring users or buildings; 2. introduce the power from the secondary winding of the neighboring transformer. The transformer may be the one existing or the one newly founded by importing high voltage cable from a long distance. The remote importing of the power cable usually adopts the aerial mode. And it is required that the last section led to the BTS should be no longer than 50m, and be connected to the BTS via bury mode. As this section adopts electrical power cable with metal shielding layer, the two ends of the shielding layer should be grounded.

For the convenience of use and management, power distribution box and ammeter should be installed before importing the external power to the BTS. Because most of the installation environment of the outdoor BTS is very poor, usually no room and position is left for adding the power distribution box and ammeter, and moreover, with waterproof and sun-proof being considered, additional auxiliary equipment is needed to solve these problems. Thus its considerable to add power distribution box and ammeter at the import end of the external power supply. Considering the function of the lightning arrester, fuse and air-break switch shouldnt be placed inside the power distribution box because they may be blown easily by the thunder current. If so, then the lighting protection box inside the BTS cant function as it should do, and cause BTS power failure.

To ensure security of human body and equipment, protective measures should be adopted when importing external power supply, and the erecting and laying of the cable should meet the related industry standards.

4.2.4 Transmission Import

The transmission modes that can be adopted for BTS3012A are as follows: SDH, microwave, HDSL, and E1 etc. In BTS3012A, it offers space and interface for other built-in transmission equipment besides the E1 transmission mode that meets the G.703 Specification.

1) The reserved space in the cabinet is 19(5U(310mm(W(H(D).

2) The leading-out part of the cabinet reserves cable outlet for microwave and SDH.

3) BTS3012A provides three kinds of power supplies such as +24VDC, -48VDC and 220VAC for the transmission equipment. If the built-in transmission equipment needs 48VDC power supply, then, transmission power supply should be selected and configured.

Adopting optical transmission mode

ADSS optical cable (non-metal self-supporting optical cable) is recommended for the last segment in the aerial mode. Optical cable with metal protection layer also can be used, and the both ends should be grounded at its neighborhood.

After the optical fiber is led into the cabinet, access it to the tail fiber after splicing. The fiber-splicing box and the optical transmitter and receiver can be placed into the internal attached equipment frame of the cabinet as 5U room has been reserved.

Inside the cabinet, three kinds of power supplies, namely, +24VDC, -48VDC and 220VAC can be provided for the transmission equipment.

Adopting microwave transmission mode

When adopting microwave transmission mode, the indoor unit of the microwave transmission equipment can be placed into the attached equipment frame where room has been reserved for the transmission equipment. Inside the cabinet, three kinds of power supplies, +24VDC, -48VDC and 220VAC can also be provided for the transmission equipment.

Adopting HDSL mode

HDSL is adopted where microwave is hard to erect and optical fiber is hard to reach, and it is used to provide transmission between BTS and BSC in short terms. When adopting this mode, inside the attached equipment frame of the cabinet, the position of the HDSL equipment and the power supply have already been considered. But its necessary for the user to adopt lightning protection measures towards the in-lead subscriber line.

Adopting E1 mode

In some special cases, E1 mode may be adopted to provide transmission. When E1 cable is directly used in the BTS, aerial transmission mode should be avoided. If the mode is necessary, the E1 cable must adopt cable with metal jacket. During the construction, grounding should be performed to the metal jacket in the shielded layer of signal cable by using the grounding clip, just similar to the feeder grounding clip. Ground cable led out by the lightning-proof grounding clip should be connected to the protective grounding bar of the BTS. The longest transmission distance of 75-ohm trunk cable is 200m, so adding additional transmission equipment should be considered when the distance is more than 200m.

BTS3012A supports 75 ohm, and 120 ohm E1 transmission mode. Single cabinet can provide 4 pairs of E1 at most.

4.2.5 Installing Preparation for ( Type Support

During the installation of the BTS3012A outdoor equipment, the cabling and bundling of the feeder, jumper, transmission lead-in, power lead-in and battery cable etc. are important points. According to the site deployment experience and through sufficient demonstrations, Huawei designs the ( type support installation mode. The user can prepare materials according to the dimensions.

See figure below for the effect after the installation of the ( type support.

Figure 4-4 Elevation view of BTS3012A installing ( type support

Figure 4-5 Top view of BTS3012A installing ( type support

( type support is composed of vertical and horizontal cable ladders and support bracket. The length of the vertical cable ladder is 2100mm, and horizontal ladder 3000mm. The width of the cable ladder should be 400mm.

The cable ladders may adopt channel steel and horizontal support levers as the main rack, among which the channel steel acts as the vertical beams and the horizontal support levers as horizontal beams. When mounting the ladder, the only thing to do is just to connect the vertical support levers and channel steel with fasteners. The distance between two vertical support levers is 250mm. Because the distance between two holes of the channel steel is 50mm, each vertical support lever should be fixed onto the channel steel every 5 holes. When the cable ladder is ready for vertical installation of the cabling rack in the equipment room, the side of the ladder with bolt heads should be placed downward so that there is no bulge on the upside of the ladder, which fits for the installation of the cable channel. The basic structure of the cable ladder is as follows:

Figure 4-6 Structure of the cable ladder

The cable ladder can also be made by melding flat steel. Because its used outdoors, all the items of the ladder should be galvanized and the bare surface should be painted with anti-rust paint after the ladder is cut on-site, this is to ensure anti-rust and its beauty.

The vertical cable ladder should be fastened to the cement ground. The joints are fixed at the bottom of the vertical cable ladder, and fastened to the ground by using plug bolt. The ladder can also be fastened by using other common installation parts.

Figure 4-7 Connection between the vertical cable ladder and ground

See figure below for the connection between vertical and horizontal cable ladders

Figure 4-8 Connection between vertical and horizontal cable ladders

Because the ( type support isnt a stable structure, its necessary to reinforce it by using support bracket. The bracket may adopt the 40*40*4 angel steel, with a length of 2650mm. The upper part of the bracket should be soldered with the horizontal cable ladder or be connected to the horizontal cable ladder with bolts. And the bottom part should be fastened to the pre-set cement pedestal by using plug bolt after the installation parts are installed, or it can also be fastened by burying it into cement.

Figure 4-9 support bracket schematic drawing of BTS3012A ( type support

Because the outdoor installation of BTS3012A adopts suspension mounting, all the cable ladders and brackets can only be installed after the installation of the equipment. Customers can prepare materials and tools according to the above mentioned requirements and begin to install the ( type support once the installation of the cabinet finished, then install and connect all the cables.

Appendix 1 Technical data of BTS3012A

1) Host cabinet dimensions: Height Width Depth: 1995mm1300mm870mm

Storage battery cabinet dimensions: with sun-proof shelter Height Width Depth=2000mm800mm600mm

Storage battery cabinet dimensions: without sun-proof shelter Height Width Depth=1700mm800mm600mm

2) Weight: The gross weight of the base cabinet with full configuration is less than 870kg (including the 100Ah storage battery)

The gross weight of the storage battery cabinet with full configuration is less than 850kg (including the 650Ah storage battery)

3) Theoretic maximum power consumption

Power consumption of BTS with full configuration: 3500W

Cooling power consumption of the air-conditioner: 1600W Heating power consumption of the air-conditioner: 2600WRefrigerating output of the air-conditioner> 3500WPower consumption of the heat exchanger

Power consumption of heat exchanger: 400W

Heating power consumption of exchanger: 2600W

Increased power when charging the storage battery, with the storage battery cabinet being configured: 1200W

4) Operating temperature: -55(C ~55(COperating temperature of storage battery cabinet: -20 (C ~45 (C (operating temperature restriction for large-capacity storage battery)5) Operating humidity: 5%~100%

6) 20V operating voltage rang: phase voltage 150V ~300VAC /47~63Hz

7) Frequency band uplink: 890~915/1710~1785MHz

downlink: 935~960/1805~1880MHz

8) Receiving sensitivity: 1800MHz better than-109dBm, 900MHz better than -110dBm