Fiber-Span FS71C-85-USR Guide d'installation

FS71C-85Series User Manual

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FS71C-85-USR

User Operation &

Maintenance Manual

800 MHz Digital Narrowband Repeater Unit

Fiber-Span, 3434 Route 22 West - Branchburg, NJ 08876 - 908•253•9080, fax 908•273•9086 - www.fiber-span.com

FS71C-85 Series User Manual | II

No part of this publication, or any software included with it may be reproduced, stored in a retrieval system, or

transmitted in any form or by any means, including photocopying, electronic, mechanical, recording or otherwise,

without the prior written permission of the copyright holder.

Fiber-Span provides this document as is, without any warranty of any kind either expressed or implied including,

but not limited to, the implied warranties of merchantability and ﬁ tness of a particular purpose. Fiber-Span may

make changes or improvements in the equipment, software, or speciﬁ cations described in this document at any

time and without notice. These changes will be incorporated in new releases of this document.

This document may contain technical inaccuracies or typographical errors. Fiber-Span waives responsibility for

any labor, materials, or costs incurred by any person or party as a result of using this document. Fiber-Span and

any of its afﬁ liates shall not be liable for any damages (including, but not limited to, consequential, indirect or

incidental, special damages or loss of proﬁ ts or date) even if they were foreseeable and Fiber-Span has been

informed of their potential occurrence, arising out of or in connection with this document or its use.

Fiber-Span

3434 Route 22 W., Suite 140

Branchburg, New Jersey 08876

Tel: (908) 253-9080

Fax: (908) 253-9086

www.ﬁ ber-span.com

Limitation of Liability

FS71C-85Series User Manual

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Warnings

Only a qualiﬁ ed technician shall be allowed to

operate the unit after reading and understanding

all the guidelines in this manual.

An exclamation point denotes attention to state-

ment required.

Follow and comply with all site Safety Policies.

Do not touch heat sink while equipment is in

operation, as surface may be very HOT.

Terminate every RF port with a 50 Ohm load.

Note: Factory limit is set to +37 dBm composite

output power for both UL & DL paths.

Part 20 & 90 Signal Boosters

THIS IS A 90.219 CLASS A DEVICE”

“WARNING. This is NOT a CONSUMER device. It is designed for installation by FCC LICENSEES and

QUALIFIED INSTALLERS. You MUST have an FCC LICENSE or express consent of an FCC Licensee to

operate this device. You MUST register Class B signal boosters (as deﬁ ned in 47 CFR 90.219) online

at HYPERLINK “http://www.fcc.gov/signal-boosters/registration” www.fcc.gov/signal-boosters/

registration. Unauthorized use may result in signiﬁ cant forfeiture penalties, including penalties in

excess of $100,000 for each continuing violation.”

Part 20 Industrial Boosters

“WARNING. This is NOT a CONSUMER device. It is designed for installation by FCC LICENSEES and

QUALIFIED INSTALLERS. You MUST have an FCC LICENSE or express consent of an FCC Licensee to

operate this device. Unauthorized use may result in signiﬁ cant forfeiture penalties, including penal-

ties in excess of $100,000 for each continuing violation.”

FS71C-85 Series User Manual | IV

Revision History

Version Description Date Author

1.0 Initial Release 01-Aug-2014 DT

1.1 GUI Screen shots and descriptions updated 01-Feb-2015 HW

1.1a pg18 DL Setup 25-Feb-2015 HW

1.1k FCC statement clariﬁ ed 10-Aug-2015 HW

Information in this document is subject to change without notice.

Please send comments to:

E-mail: [email protected]

Phone: 908-253-9080 | Fax: 908-253-9086

FS71C-85Series User Manual

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Table of Contents

Limitation of Liability . . . . . . . . . . . . . . . ii

Warnings . . . . . . . . . . . . . . . . . . . . iii

Revision History . . . . . . . . . . . . . . . . . iv

1Company Information 1

Contact . . . . . . . . . . . . . . . . . . . . 1

2Product Introduction 2

Theory of Operation . . . . . . . . . . . . . . . 4

Product Applications . . . . . . . . . . . . . . . 5

3Detailed Description 8

Overview . . . . . . . . . . . . . . . . . . . . 8

Amplifiers . . . . . . . . . . . . . . . . . . . . 8

Duplexers . . . . . . . . . . . . . . . . . . . . 9

Alarms . . . . . . . . . . . . . . . . . . . . . 9

GUI Interface. . . . . . . . . . . . . . . . . . .10

Specifications . . . . . . . . . . . . . . . . . .11

Outline Drawings . . . . . . . . . . . . . . . . .12

4Installation Procedure 14

Environment . . . . . . . . . . . . . . . . . . .14

Connectorization . . . . . . . . . . . . . . . . .14

Anchoring . . . . . . . . . . . . . . . . . . . .14

Wall-mount Version. . . . . . . . . . . . . . .14

Rack-mount Version. . . . . . . . . . . . . . .14

Alarms . . . . . . . . . . . . . . . . . . . .14

Grounding . . . . . . . . . . . . . . . . . . . .15

FS71C-85 Series User Manual | VI

5Setup Procedure 16

Overview . . . . . . . . . . . . . . . . . . . .16

Cautionary Notes . . . . . . . . . . . . . . . . .16

Contents of Package. . . . . . . . . . . . . . . .16

HRU Control . . . . . . . . . . . . . . . . . . .16

Downlink Setup. . . . . . . . . . . . . . . . . .18

De-rating Table . . . . . . . . . . . . . . . . . .20

HRU Uplink Control . . . . . . . . . . . . . . . .20

Uplink Gain Setup. . . . . . . . . . . . . . . . .21

6Troubleshooting 22

HRU Alarms . . . . . . . . . . . . . . . . . . .22

Power LED Indicator . . . . . . . . . . . . . . . .23

Amplifier Alarms . . . . . . . . . . . . . . . . .23

Fan Blockage. . . . . . . . . . . . . . . . . . .23

Door Lights . . . . . . . . . . . . . . . . . . .23

7Warranty Information 24

General Warranty . . . . . . . . . . . . . . . . .24

Limitations of Warranty . . . . . . . . . . . . . .24

Limitations of Damages . . . . . . . . . . . . . .24

Return Material Authorization (RMA) . . . . . . . . .24

8FCC Statement 25

Manufacturer’s Notes . . . . . . . . . . . . . . .25

Table of Contents (cont’d)

FS71C-85Series User Manual

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1Company Information

Fiber-Span is a premier provider of advanced RF ON FI-

BER® technologies and solutions for ﬁ ber optic based

transmission of high performance radio-frequency

wireless voice, data and multiservice networking ap-

plications.

Fiber-Span offers a full line of ﬁ bered and non-ﬁ bered

wireless coverage solutions including Distributed

Antenna Systems, Bidirectional Ampliﬁ ers, Digital Nar-

rowband DSP based Repeaters and ﬁ ber optic distribu-

tion gear. Full featured solutions include redundancy,

Network Management Systems and remote web-based

access capability.

Fiber-Span is addressing public safety needs by pro-

viding ﬁ ber optic wireless solutions for police, ﬁ re,

emergency, ﬁ rst responder and Homeland Security

radio systems applications. Fiber-Span’s solutions for

Defense and Military organizations are also leading the

way by providing reliable and secure communications

links for ground, airborne, shipboard, radar, telemetry,

GPS and intelligence solutions in the HF/VHF/UHF and

microwave radio frequencies.

Fiber-Span’s evolving class of product addresses the

growing demand and movement toward the conver-

gence of wire line and wireless networks, and the

requirement for high performance, high bandwidth RF

ON FIBER® solutions and networks.

Fiber-Span’s customers are global wireless communica-

tion systems original equipment manufacturers (OEM),

radio frequency (RF) system integrators, and military

system architects. More information about Fiber-Span

products is available from the contact info listed below.

Contact

Fiber-Span

3434 Rt. 22W, Suite 140

Branchburg, NJ 08876

908-253-9080

Email: techinfo@ﬁ ber-span.com

Web: http://www.ﬁ ber-span.com

FS71C-85 Series User Manual | 2

2Product Introduction

This manual covers the Digital Narrowband Headend

Repeater Unit (DHRU)., model FS71C-85. The DHRU is

the off-air interface to the Distributed Antenna System

(DAS) and is typically fed donor signals by coaxial cable

from one or more off-air antennas. On the DAS side, the

HRU may be connected directly via coaxial cable, or op-

tionally, to RRUs via BSU (Base Station Interface Unit)

and one or more FTUs (Fiber Transceiver Unit).

The following diagram illustrates how the DHRU ﬁ ts

into the Fiber-Span System Architecture.

Figure 1. Fiber-Span System Architecture & Product Family

DHRU - Digital Headend Repeater Unit

IHU - Integrated Headend Repeater Unit

BSU - Base Station Interface Unit

FTU - Fiber Transceiver Unit

RRU - Remote Repeater Unit

CRRU - Compact Remote Repeater Unit

BTS - Base Transceiver System

GPS - Global Positioning System

FS71C-85Series User Manual

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The DHRU is used to provide cost-efﬁ cient wireless

signal distribution in areas that have poor coverage.

Fiber-span has included additional unique hardware in

the DHRU that allows it to both power a local passive

DAS plus feed ﬁ ber-optic transceivers (FTU).

The downlink port is tapped off the output of the

downlink ampliﬁ er. The uplink frequencies are com-

bined prior to ampliﬁ cation in the uplink ampliﬁ er.

The separate downlink and uplink ports are present on

the bottom of the wall mount unit or the rear of the

subrack version along with the (Donor) Antenna port

and a DAS port.

Most applications for simple coverage enhancement

solutions would require a Bi-Directional Ampliﬁ er

(BDA).

The DHRU is Fiber-Span’s technology equivalent to

the BDA, with the additional functionality of a DSP

processore that digitally ﬁ lters the incoming signals

with precise narrowband ﬁ lters centered around each

incoming individual channel. The DHRU also allows for

local coverage via a downlink power ampliﬁ er plus a

direct connection to ﬁ ber-optic transceivers for feeding

a ﬁ ber DAS.

The DHRU ampliﬁ es RF frequencies in both the

downlink and uplink paths with duplexers that provide

both downlink and uplink frequency bands on a single

distributed antenna system.

The following block diagram better illustrates how the

DHRU is conﬁ gured.

Figure 2. DHRU - Internal Block Diagram

FS71C-85 Series User Manual | 4

Theory of Operation

The ampliﬁ ers used in the RRU provide a set amount

of gain. Gain is deﬁ ned as the ratio in the amount of RF

power of the output and input of the ampliﬁ er.

If +20dBm of RF power is required at the RF Out port

of the RRU and 0dBm is input to the RF Input port at

the FTU, the gain must be set to 20dB.

When multiple RF carriers are input to an RF ampliﬁ er,

the RF output power will be the input power plus the

gain.

Power Output = Power input + Gain (in decibels)

Power Output = Power input x Gain (in Watts)

As seen in the following ﬁ gure, the output power tracks

the input power linearly. Eventually as the input power

increases, the ampliﬁ er output power reaches the out-

put power limit. When this happens, intermodulation

products are generated at the ampliﬁ er output.

The intermodulation products with the most likelihood

of generation are 2nd and 3rd order. For every 1dB

increase in input RF power, the 3rd order intermodula-

tion products increase 3dB.

If one were to plot the 3rd order output power on a

graph as in the preceding ﬁ gure, the slope of the 3rd

order products would intersect the line of the output

power plotted vs. the input power. This point is deﬁ ned

as the 3rd Order Intercept point and is used by ampli-

ﬁ er manufacturers to characterize the maximum output

power of an RF ampliﬁ er.

The RF output power of the ampliﬁ ers is deﬁ ned as

the total RF output power inside the bandwidth of the

duplexers. This RF output power is divided into the

number of dominant RF carriers at the output of the

ampliﬁ er.

Figure 3. HRU Output Power vs Input Power (IP3 Plot)

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