Powerwave Technologies 5JS0103 Users manual

044-05320 Rev A June 2008

DISTRIBUTED ANTENNA SYSTEM

INSTALLATION AND SERVICE MANUAL

DAS

NEXUS FT
STRAND MOUNT

DRAFT

© 2008 Powerwave Technologies Incorporated. All rights reserved.

DRAFT

Powerwave Technologies and the Powerwave logo are registered trademarks.

Powerwave Technologies Inc. reserves the right to make changes to documentation and equipment, including
but not limited to component substitution and circuitry changes. Changes that impact this document may be
subsequently incorporated in a later revision of this document.

This Powerwave product is designed to operate within the Normal Operating (typical operating) ranges or con­ditions specified in this document. Operation of this equipment beyond the specified ranges in this document
may cause (1) spurious emissions that violate regulatory requirements; (2) the equipment to be automatically
removed from service when maximum thresholds are exceeded; or (3) the equipment to not perform in accor­dance with its specifications. It is the Operator's responsibility to ensure this equipment is properly installed and
operated within Powerwave operating specifications to obtain proper performance from the equipment and to
comply with regulatory requirements.

The rated output power of a FT Strand mount is for multiple carriers. As long as the composite power does not
exceed the rated power (20W for North America), derating is not required for multiple carriers. For situations
where regulatory requirements require reduced interference to adjacent band users, the rating would have to
be reduced by 3 dB. This power reduction is to be by means of input power or gain reduction and not by an
attenuator at the output of the device. Input power is rated at 115/230VAC, 50/60Hz, and should be protected
based on the power and fuse specifications in Chapter 5 of this manual. Power strips should, at a minimum,
conform to this requirement to prevent equipment damage and possible overload.
Federal Communications Commission (FCC)

This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to
CRF47 part 15 of the FCC rules. This equipment is also certified to CRF47 part 24 (PCS) of the FCC Rules
depending on the band of operation. Changes or modifications not expressly approved by Powerwave Tech­nologies, Inc. for compliance could void the user’s authority to operate this equipment. These limits are
designed to provide reasonable protection against harmful interference when the equipment is operated in a
commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not
installed and used in accordance with the instruction manual, may cause harmful interference to radio commu­nications. Operation of this equipment in a residential area is likely to cause harmful interference in which case
the user will be required to correct the interference at his own expense.

This device complies with the technical standards governing mobile radio devices in accordance with FCC
Rules. This device is intended to facilitate the reception and transmission of mobile radio devices in the cellu­lar, PCS or other mobile services, and its operation by end users or others requires carrier consent under FCC
rules.

Industry Canadian Requirements
All Powerwave apparatus introduced in the Canadian market meet all requirements of the Canadian Interfer­ence-Causing Equipment Regulations. The -20dB bandwidth at 1900 MHz band is 80 MHz. The output imped­ance of the unit referenced in this document is 50 Ohms. The input signal is optical so input impedance
requirements are not applicable.

Powerwave Technologies Inc., 1801 East St. Andrew Place, CA 92705 Santa Ana, USA.
Phone [phone] – Fax [phone] – Internet www.powerwave.com

Nexus FT Strand Mount Warnings, Cautions, and Notes

DRAFT

Revision Record

Revision Letter Date of Change Reason for Change

A June 2008 New (original)

044-05320 Rev A i

Warnings, Cautions, and Notes Nexus FT Strand Mount

DRAFT

This page intentionally left blank

ii 044-05320 Rev A

Preface

DRAFT

Safety

Any personnel involved in installation, operation, or service of units included in a Powerwave Distributed
Antenna System (DAS) must understand and follow the points below.

❑ Powerwave Nexus FT systems are designed to receive and amplify signals from one

or more base stations and retransmit the signals to one or more mobile stations. And,
also to act the other way round, that is to receive signals from one or more mobile
stations, amplify and retransmit the signals to the base stations. Powerwave Nexus FT
systems must be used exclusively for this purpose and nothing else.

❑ Units supplied from the mains must be connected to grounded outlets and in conformity

with the local prescriptions.

❑ Power supply units supplied from the mains contain dangerous voltage that can cause

electric shock. Disconnect the mains prior to any work in such a unit. Local regulations
are to be followed when servicing such units. Only authorized service personnel are
allowed to service units while the mains are connected.

❑ All RF transmitting units, including Nexus FTs, will generate radio signals and thereby

give rise to electromagnetic fields that may be hazardous to the health of any person
who is extensively exposed close to an antenna.

❑ A lithium battery is permanently mounted on the CU and FON PCBAs. Due to the risk

of explosion, this battery must only be removed from the board by a Powerwave
authorized service technician.

❑ NiCd batteries are mounted on the FON PCBA. These batteries contain environmental

poisonous substances. If replaced, the old batteries should be disposed of as stated in
the local prescriptions.

❑ The FON unit contains a Class 1M laser transmitter that emits 2—4 mW invisible laser

radiation at 1550 nm during operation and is intended for a restricted location. Avoid
direct exposure from a disconnected laser transmitter or fiber cord. For example, do not
view directly with optical instruments (magnifiers) and do not view directly with
non-attenuating optical instruments.

❑ The FON Unit has this label attached:

❑ Do not power up the FON unit if a fiber cable is not connected to the fiber output UL

port, or if a fiber cable is connected to the port but disconnected at the other end.

❑ Never look at the end of a fiber cable. The 1310nm and 1550nm laser light is not

visible. Always use an instrument, such as a power meter, to detect signaling.

044-05320 Rev A vii

Electrostatic Discharge (ESD) Nexus FT Strand Mount

DRAFT

Human Exposure to RF Radiation

Safe distances must be kept when working around antennas. The following paragraphs describe the cautions
to be aware of during the installation and maintenance of antenna systems and how to calculate safety
distances needed for RF radiation at different antenna power and frequencies.

Antennas

To be able to receive and transmit signals, a Nexus FT RM ORD is connected to a donor antenna directed
towards the base station and a service antenna directed towards the coverage area. A fiber optic cable from the
base station might, however, be substituted for the donor antenna.

Installation and Maintenance of Antenna Systems

Installation and maintenance of all antenna systems must be performed with respect to the radiation exposure
limits for public areas. The antenna radiation level is affected by Nexus FT RM ORD output power, antenna
gain, and transmission devices such as cables, connectors, splitters and feeders. Also have in mind the system
minimum coupling loss, typically between 25dB and 35dB, is determined by a standard with the purpose to
protect base stations from noise and other performance dropping effects.

Radiation Exposure

The World Health Organization (WHO) and International Commission on Non-Ionising Radiation Protection
(ICNIRP) have determined recommendations for radiation exposure. ICNIRP recommends not to exceed the
following radiation power for public exposure:

Frequency Radiation power

800/900 MHz 4.5W/m²
1800/1900 MHz 9.0W/m²
2100 MHz 10.0W/m²

For antennas larger than 20cm the maximum radiation power can be calculated by using the following formula:

S = Radiation power in W/m²
P = Output power in W
r = Distance between antenna and human in meters

S= P/(4

πr

2

)

Electrostatic Discharge (ESD)

ESD can severly damage essential parts of the equipment if not handled carefully. Parts on
printed circuit board assemblies (PCBA) as well as other parts in the equipment are sensitive
to ESD. Never touch the PCBA or uninsulated conductor surfaces unless absolutely
necessary.

If you must handle the PCBAs or uninsulated conductor surfaces, use ESD protective
equipment or first touch the chassis with your hand. Never let your clothes touch PCBAs or
uninsulated conductor surfaces and always store PCBAs in ESD-safe bags.

viii 044-05320 Rev A

Chapter 1

DRAFT

Product Description

Introduction

This manual contains information and procedures for installation, operation, and maintenance of the Nexus FT
Strand Mount repeater, referred to in this manual as the Nexus FT SM. The manual is organized into chapters
as follows:

❑

Chapter 1 - Product Description

❑

Chapter 2 - Controls and Indicators

❑

Chapter 3 - Installation

❑

Chapter 4 - Maintenance

❑

Chapter 5 - Specifications

Scope of Manual

This manual is intended for use by service technicians familiar with similar types of equipment. It contains
service information required for the equipment described and is current as of the printing date. Changes which
occur after the printing date may be incorporated by a complete manual revision or alternatively as additions.

Overview

Powerwave Nexus FT SM repeaters work as bi-directional on-frequency amplifiers used to extend coverage
into uncovered areas in wireless mobile systems such as base station fringe areas, tunnels, convention
centers, airports and buildings. It receives, amplifies, and transmits signals to/from a Base Transceiver Station
(BTS) to/from Mobile Stations (MS) with both directions being served simultaneously. Connections to the
Nexus FT SM are made with N-type or 7/16" male connectors.

Nexus FT SMs are microprocessor controlled. Operational parameters, such as gain and power levels are set
using a PC running Powerwave OM-Online software which communicates with the Nexus FT SMs either locally
or remotely via modem. Remote operation can be performed via PSTN or a GSM net. The Operation and
Maintenance System (OMS) provides for Network Operations Center (NOC) configuration and alarm
monitoring.

Nexus FT SMs can be configured in many combinations depending on the wireless system, single or double
system operation, and output power.

.

044-05320 Rev A 1-1

Overview Nexus FT Strand Mount

DRAFT

Chassis Design

Enclosure

The Nexus FT SM is housed in an aluminum enclosure, approved for outdoor use. The enclosure contains the
repeater circuitry, with 2 hanger clips for positioning and securing the Nexus FT SM repeater along a cable.

Figure 1-1 Nexus FT SM Repeater

1-2 044-05320 Rev A