Cisco Systems 2484-B8415-R1 Users Manual

PRELIMINARY

CHA PTER

6

Installation

6.1 Inventory

The first thing an installer physically does once onsite is to check to see that all equipment and materials have arrived, as well as to make sure all necessary documents and forms are available.

6.2 BWX 8415 Basestation Radio Unit (RU) Installation

6.2.1 Overview

Caution Only trained and qualified personnel should be allowed to install, replace, or service this

equipment. Statement 1030

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Caution - Refer installation and service to qualified service personnel only. No user serviceable parts inside.

- Installation must be done in accordance with the instructions contained in this manual.

- Read these instructions before installing.

- Save these instructions.

Warning

Installation of the equipment must comply with local and national electrical codes.

The Radio Unit (RU) is a lightweight unit that connects easily with the Antenna Unit (AU) to form the complete BWX 8415 Basestaion (BS). All customer accessible connectors will be located on the bottom of the RU (

Note that the circuit cards inside the BS are not field replaceable. Therefore, if a severe fault occurs, the entire unit is removed and replaced. The design intent is to cut down on the time it takes to troubleshoot or otherwise have a field support person onsite.

Figure 6-1).

BWX 8415 Basestation Installation and Commissioning Guide

Statement 1074

6-1

6.2.1 Overview

Chapter 6 Installation

PRELIMINARY

Figure 6-1 BWX 8415 RU Connectors

Warning

DC Power

(RTN/RTN/-48V/-48V/GND)

Fiber-optic Port

( Amphenol Connector)

The fiber-optic port, console port (RJ-45 connector), GPS antenna port, and the DC power connections (two -48V, 2 RTN, and one GND) are located on the bottom of the RU.

At no time should a field person remove the RU’s cover or otherwise open the unit. In fact, doing so may void the warranty.

Console Port

(RJ-45, Engineering use only)

GPS Antenna Port

(Type N, female)

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Chapter 6 Installation

6.2.2 BWX 8415 Basestation Radio Unit Field Testing

PRELIMINARY

6.2.2 BWX 8415 Basestation Radio Unit Field Testing

THIS SECTION WAS WRITTEN/DEVELOPED, BASED ON THE FIELD TEST KIT LIST OF MATERIALS AND VERBAL DESCRIPTIONS OF HOW THE FIELD TEST KIT IS INTENDED TO BE USED. ONCE THE FIELD TEST KIT IS DEVELOPED, THIS SECTION WILL BE UPDATED TO REFLECT THE ACTUAL EQUIPMENT.

It is recommended that the RU be tested, to ensure that the unit is functioning properly, prior to installation into the AU. Perform the following steps to connect the RU to the Field Test kit and test the RU.

Step 1 Connect the RU to the Fan/Cal Board assembly. Refer to Figure 6-2.

- Connect the RU to the fans/cooling system

- Connect the RU to the Cal board (using the 9 RF cables included in the Field Test kit)

- Connect the GPS antenna to the GPS Antenna port on the bottom of the RU.

Figure 6-2 RU to Fan/Cal Board Assembly Connection

Step 2 Connect a ground cable to the RU ground. Tighten the nuts to 48 in. lbs. (5.4 Nm). Refer to Figure 6-3.

Step 3 Connect the DC power cable leads (2 RTN and 2 -48V) to the RU. Tighten the nuts to 48 in. lbs.

(5.4 Nm). Refer to Figure 6-3.

Figure 6-3 Ground Cable and DC Power Cable Connections

Step 4 Connect an RJ-45-to-DB-9 serial cable to the Console port on the RU and to the Field Technician’s

laptop PC.

- Using a terminal application (such as TeraTerm or Hyperterminal), set the following port parameters:

Baud Rate: 9600 Data: 8 bit Parity: None Stop: 1 bit Flow Control: None

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Step 5 Power up the RU by connecting the DC power cable to a DC power source (48V power supply).

Note Once the RU is powered up, it will begin to boot. The boot process can be monitored from the terminal

application on the laptop PC.

Step 6 Modify the bootline parameters as necessary. (MORE DETAILS ONCE FIELD TEST KIT IS

AVAILABLE)

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6-3

6.2.3 Install the Radio Unit

Step 7 Once the bootup is completed, perform a calibration to verify the RU is functioning properly. (MORE

DETAILS ONCE FIELD TEST KIT IS AVAILABLE)

Step 8 After the calibration has been completed successfully, power down the RU. Disconnect the RU from the

DC power source.

Step 9 Disconnect the ground cable and DC power leads from the RU.

Step 10 Disconnect the RF cables and GPS cable from the RU.

Step 11 Disconnect the fans/cooling system.

6.2.3 Install the Radio Unit

Chapter 6 Installation

PRELIMINARY

Warning

Do not work on the system or connect or disconnect cables during periods of lightning activity.

Statement 1001

Warning

Step 1 Remove the two lower faceplate covers on the back of the AU, to access the RF calibration board and

Ensure that the power to the RU unit is OFF before installing the unit into the AU.

RF cable connectors. Refer to

Figure 6-4 Faceplate Covers Removed

Figure 6-4.

6-4

RF Calibration Board Mechanical Interlock Pin Holes

Caution Do not attempt to insert the RU into the AU without removing the lower faceplate covers. These faceplate

covers have a mechanical interlock pin, which inserts into the RU, and if the faceplate covers are not removed when inserting the RU, damage could occur to the RU and the mechanical interlock pins.

Step 2 Insert the RU into the AU, as shown in Figure 6-5.

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Chapter 6 Installation

6.2.3 Install the Radio Unit

PRELIMINARY

Figure 6-5 Inserting the RU into the AU

Step 3 Connect the RF cables and the Cal cable, coming from the RF calibration board, to the RF connectors

and Cal connector on the RU unit.

Step 4 Replace the faceplate covers. Be sure to insert the pin on the faceplate covers into the mechanical

interlock holes on the AU and RU units, these holes should align when the RU is inserted into the AU.

Caution Ensure that the faceplate covers are properly secured to prevent water from leaking into the unit.

Step 5 Install the lower manifold.

Caution Ensure that the lower manifold is properly secured to ensure that the air flow for the heat exchangers is

contained within the unit.

Step 6 Install the I/O cable cover. (It is not necessary to completely tighten these covers at this time. The covers

are being installed to prevent them from swinging while the BWX 8415 Basestation is being hoisted.)

Step 7 Once installed, proceed to the next section of this Guide.

Note To remove the RU, after it has been installed, refer to Appendix F, “Radio Unit Removal”.

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6-5

6.3 BWX 8415 Installation

PRELIMINARY

6.3 BWX 8415 Installation

Reference:

• Appendix A, “Cisco Recommended Tools”

Check all regulatory requirements prior to installing the BWX 8415 Basestation.

Caution - Refer installation and service to qualified service personnel only. No user serviceable parts inside.

- Installation must be done in accordance with the instructions contained in this manual.

- Read these instructions before installing.

- Save these instructions.

6.3.1 Description

The Antenna Unit (AU) is the part of the BS that contains the eight radiating antenna elements, the heat exchanger, calibration board, external thermal sensor and optional channel filters. (These filters are installed on the outside rear of the AU.) An AU (refer to configured during commissioning.

Chapter 6 Installation

Figure 6-6) radiates over a sector of 90° or 120°,

Figure 6-6 BWX 8415 Antenna Unit

6-6

Front View Side View Rear ViewFront View Side View Rear View

Note The 8 element AU has 6° of fixed electrical downtilt.

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Chapter 6 Installation

6.3.1.1 Channel Filters

In the BWX 8415 Basestation you have the option to:

• 1 - Use a Channel filter:

• 2 - Not use a filter at all:

If no channel filters are installed, the service provider is free to select or change the center frequency of the BS without damaging the equipment.

6.3.2 Install the GPS Antenna Cable

PRELIMINARY

The functions of Channel filters are two-fold: (1) to shape the power amplifier out-of-band emission during transmission in order to meet FCC or other regulatory requirements; and (2) to provide high rejection for close-in jammers during the receive period. The latter improves receiver selectivity. As indicated by its name, the filter operates in a specific limited frequency band (e.g., Bandwidth (BW) = 5 to 20 MHz) and has more stringent attenuation requirements. Normally, the attenuation is 15-20 dB rejection for close-in frequencies.

If a BWX 8415 Basestation has channel filters installed, it must be operated at a center frequency that exactly matches the center frequency for which the channel filters were manufactured; otherwise, the equipment could be damaged.

Note Depending on the country where the system is being used, a channel filter may be required to meet the

spectrum requirements of that region. A consideration to keep in mind when addressing a deployment for a specific region.

If the channel filters do not come installed and you have to install them, please refer to Appendix E,

“BWX 8415 Channel Filter Installation Procedure”, for the procedure to install the filters.

Note If channel filters are required to be installed, after the BWX 8415 Basestation has been installed on the

tower or building, the basestation will need to be lowered to the ground.

6.3.2 Install the GPS Antenna Cable

Connect the GPS cable to the GPS antenna, located at the top of the BWX 8415 BS and tighten the connector to 12 to 15 in-lbs. (1.4 to 1.7 Nm). Refer to

Note In the event that the BWX 8415 BS is mounted on the side of a building, the GPS antenna can be removed

from the BS and mounted to a location where the antenna will have a clear 360° view of the sky. The GPS cable loss must be less than 8 dB.

Figure 6-7.

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6.3.3 Handling the BWX 8415 Basestation

Chapter 6 Installation

PRELIMINARY

Figure 6-7 GPS Antenna Cable Installed

6.3.3 Handling the BWX 8415 Basestation

It is a good idea to inspect the exterior of the AU for any damage that may have occurred during shipping, prior to placing it at the target site. Each of the antenna elements in the AU are covered by the individual radomes on the panel. At all times handle the antenna carefully. If, during storage, filter replacement, or RU replacement, you must place a panel antenna in a position laying down, make sure it rests flat on at least one inch of plastic foam to prevent damage to the antenna elements.

When you are ready to place the antenna into position, it should be lifted using multiple lift points. Attach the hoisting cable to the AU’s lift points, as shown in

Caution Never use the radomes to lift, support, or otherwise bear partial or full weight of the BWX 8415

Basestation. Doing so can cause damage to the radomes.

Use two ground-anchor lines attached to the lower mounting bracket to steer the AU and prevent it from spinning or swaying in the wind and perhaps hitting the tower or other nearby structures with the radomes.

Figure 6-8.

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Chapter 6 Installation

PRELIMINARY

Figure 6-8 Lifting the BWX 8415 Antenna Unit

6.3.4 Mounting the BWX 8415 Basestation

Hoisting Cable

Ground-anchor Lines

6.3.4 Mounting the BWX 8415 Basestation

This section provides instructions for installing the BWX 8415 Basestation. The BWX 8415 can be either pole mounted or wall mounted. The BWX 8415 includes both pole and wall mounting hardware (with the exception of anchor bolts).

Caution The wall and mounting hardware (anchor bolts) chosen to mount the BS shall be capable of supporting

both the static weight of the BS and the lateral load, resulting from wind loading. All mounting methods on any wall surface must be in compliance with local building and safety codes.

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6.3.4 Mounting the BWX 8415 Basestation

Chapter 6 Installation

PRELIMINARY

Warning

In order to comply with radio frequency (RF) exposure limits, the antennas for this product should be positioned no less than 6.56 ft (2 m) from your body or nearby persons.

Do not work on the system or connect or disconnect cables during periods of lightning activity.

Statement 1001

Only trained and qualified personnel should be allowed to install, replace, or service this equipment.

Statement 1030

Installation of the equipment must comply with local and national electrical codes.

6.3.4.1 Mounting the BWX 8415 on a Wall

When installing the BWX 8415 on an outdoor wall, ensure that the wall and mounting hardware (anchor bolts) chosen to mount the BS are capable of supporting both the static weight of the BS and the lateral load, resulting from wind loading and that the installation adheres to all local building and safety codes.

Note The following specifications should be helpful in planning the wall mounted installation:

Dimensions: 2.3 & 2.5 GHz - 62 X 20 X 12 in (158 X 50 X 30 cm)

3.5 GHz - 62 X 14.5 X 12 in (158 X 37 X 30 cm)

Weight: 110 lbs. (50 kg) w/o filters [does not include the external cable strain relief]

Wind Loading: 170 lbs. with 100 mile/h lateral thrust (77 kg with 161 km/h lateral thrust)

Ice Loading: The BS can operate with up to .75 in (1.9 cm) thick buildup of ice without sustaining

damage.

Statement 339

Statement 1074

6.3.4.2 Mounting the BWX 8415 on a Pole

When installing the BWX 8415 on a pole, keep in mind that the mounting bracket supports metal, wood, or fiberglass poles from 3 - 4.5 inches (7.6 - 11.4 cm) in diameter. bracket.

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Figure 6-9 illustrates the mounting

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Chapter 6 Installation

6.3.4 Mounting the BWX 8415 Basestation

PRELIMINARY

Figure 6-9 BWX 8415 Mounting Bracket

Step 1 Position the mounting bracket on the BWX 8415 and secure the mounting bracket with four bolts, there

are two bolts at the top of the bracket and two bolts at the bottom of the bracket (see

Figure 6-10).

Tighten the bolts to 45 ft-lbs. (61 Nm).

Figure 6-10 Mounting Bracket Positioned on BWX 8415

Step 2 Hoist the BWX 8415 onto the tower. Refer to section 6.3.3 Handling the BWX 8415 Basestation for

hoisting requirements.

Step 3 Position the BWX 8415 on the pole, on the tower and attach the BWX 8415 to the pole using the

mounting hardware on the mounting bracket. Open the anti-seize compound (supplied), and apply a liberal amount over the metal surface where the mounting hardware and bracket.

Step 4 Ensure the BWX 8415 is vertical, and tighten the four nuts to 45 ft-lbs. (61 Nm). Refer to Figure 6-11.

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6.3.5 Antenna Separation

Chapter 6 Installation

PRELIMINARY

Figure 6-11 BWX 8415 Attached to Pole/Mast

Pole/Mast Mounting Bracket Bolts

6.3.5 Antenna Separation

When installing multiple BSs in the same geographical area, it is important to allow enough separation so that they do not interfere with one another. adjacent interference. The illustration shows the horizontal and vertical separation in feet and in meters for panel antennas.

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Figure 6-12 provides some general guidelines for avoiding

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Chapter 6 Installation

Caution There can be no co-location of MC-SCDMA with Mobile WiMAX basestations. If 2 or more BSs are

Caution All BSs in a network must have the same DL/UL symbol ratio. The default recommended ratio is 32/15.

6.3.5 Antenna Separation

PRELIMINARY

co-located on the same structure, they must run the same technology or be upgraded in the same maintenance window. Use frequency separation to minimize interference between a MC-SCDMA and Mobile WiMAX basestation. A reasonable frequency separation is 15 MHz for BSs that are 2 kilometers apart. The exact frequency separation may differ on a case-by-case basis. Therefore, 15 MHz with 2 kilometers between basestations may not provide enough separation. Refer to the BWX Mobile WiMAX Migration Planning Guide for more information on distance requirements.

Cisco does not support basestations that use different DL/UL symbol ratios in the same area because they will interfere with each other. Please refer to the BWX EMS Configuration Guide for more information on parameter settings.

Figure 6-12 General Separation Guidelines

HORIZONTAL SEPARATION (TOP VIEW)

Panel

(1.5 m)(1.5 m)(1.5 m)

(1.5 m)(1.5 m)(1.5 m)(1.5 m)(1.5 m)(1.5 m)

5 ft5 ft5 ft

5 ft5 ft5 ft5 ft5 ft5 ft

(1.5 m)(1.5 m)

(1.5 m)

(1.5 m)(1.5 m)

(1.5 m)

(1.5 m)(1.5 m)

(1.5 m)

(1.5 m)(1.5 m)

(1.5 m)

(1.5 m)(1.5 m)

(1.5 m)

(1.5 m)(1.5 m)

(1.5 m)

(1.5 m)(1.5 m)

(1.5 m)(1.5 m)(1.5 m)

(1.5 m)

Panel

120°120°120°

120°120°120°120°120°120°

Panel-Panel

Panel-PanelPanel-Panel

5 ft5 ft5 ft

5 ft5 ft5 ft5 ft5 ft5 ft

PanelPanel PanelPanel PanelPanel

Horizontal Vertical

HorizontalHorizontal VerticalVertical

5 ft (1.5 m) 10 ft (3 m)

5 ft (1.5 m)5 ft (1.5 m) 10 ft (3 m)10 ft (3 m)

VERTICAL SEPARATION

(SIDE VIEW)

Panel

PanelPanel

Panel

PanelPanel

Panel

PanelPanel

Panel

PanelPanel

Panel

PanelPanel

Panel

PanelPanel

10 ft

(3 m)

Panel

PanelPanel

Panel

PanelPanel

Panel

PanelPanel

Panel

PanelPanel

Panel

PanelPanel

Panel

PanelPanel

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6.3.5 Antenna Separation

PRELIMINARY

6.3.5.1 Vertical Separation - Cisco to Another Vendor

The minimum vertical separation between any Cisco BWX 8415 BS and another vendor’s antenna is 10 ft. Refer to Figure 6-13.

Figure 6-13 Vertical Separation (Cisco BWX 8415 BS to Other Vendor’s Antenna)

Other Vendor’s

Anten na

10 Ft Separation

10 Ft Separation10 Ft Separation

10 Ft Separation

10 Ft Separation10 Ft Separation

10 Ft Separation

10 Ft Separation10 Ft Separation

10 Ft Separation

10 Ft Separation10 Ft Separation

Cisco BWX 84 15

Bas est ation

Chapter 6 Installation

6.3.5.2 Vertical Separation – Cisco to Cisco

A minimum of 3 ft separation in the vertical axis is required between the BWX 8415 BS and any Cisco antennas ( antenna.

Figure 6-14). This separation is needed to obtain proper and optimum results from each

10 Ft Separation

10 Ft Separation10 Ft Separation

10 Ft Separation

10 Ft Separation10 Ft Separation

10 Ft Separation

10 Ft Separation10 Ft Separation

10 Ft Separation

10 Ft Separation10 Ft Separation

Other Vendor’s

Anten na

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Chapter 6 Installation

PRELIMINARY

Figure 6-14 Vertical Separation (Cisco BWX 8415 BS to Cisco Antenna)

Cisco Antenna

Cisco AntennaCisco Antenna

10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation

10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation

10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation

10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation

Cis co BWX 8305

BasestationBasestationBasestationBasestationBasestationBasestationBasestationBasestationBasestationBasestationBasestation

BasestationBasestationBasestationBasestationBasestationBasestationBasestationBasestationBasestationBasestationBasestationBasestation

Basestation

BasestationBasestationBasestationBasestationBasestationBasestationBasestationBasestationBasestationBasestationBasestationBasestation

10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation

10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation

10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation

10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation10 Ft Separation

Cisco Antenna

6.3.5 Antenna Separation

6.3.5.3 Horizontal Separation – Cisco to Another Vendor

A minimum of 10 ft horizontal separation is required between a Cisco BWX 8415 BS and another vendor’s antenna (

Figure 6-15 Horizontal Separation (Cisco BWX 8415 BS to Another Vendor’s Antenna)

Other Vendor’s

An t enn a

Figure 6-15).

10 F t S eparation10 Ft Separation

Other Vendor’s

Antenna

C isc o BWX 8415

Cisco BWX 8415

B asest ati on

Base station

6.3.5.4 Horizontal Separation – Cisco to Cisco

Other Vendor’s

Antenna

10 Ft Separ ation

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A minimum of 10 ft of separation between a Cisco BWX 8415 BS and any Cisco antennas is required.

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6-15

6.3.5 Antenna Separation

6.3.5.5 No Antenna Zone

If a vertical and horizontal cone extends 15 ft in front of a 120° Panel antenna, this lessens the 10 ft horizontal and vertical requirements for the placement of the antennas ( lesser requirements, the service provider accepts some limitations:

• Signal reflection from the antenna or obstruction

• Shadowing or dead zone in coverage caused by antenna or obstruction

• The amount of reflection and shadowing is affected by the size of the antenna or obstruction

Figure 6-16 No Antenna Zone

Chapter 6 Installation

PRELIMINARY

Figure 6-16). By using these

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Cisco Systems 2484-B8415-R1 Users Manual

Specifications and Main Features

Frequently Asked Questions

User Manual