Fiber Span FS42R-AWS-5 Repeater; Plug-in Service Module, 2.1 GHz AWS Band User Manual

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UserManual

RemoteFiberNode(RFN)

Multi‐serviceruggedizedequipmentextends carrierservices



Remote Fiber Node (RFN) User Manual

1. Limitation of Liability

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

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 fitness of a particular purpose. Fiber-Span may

make changes or improvements in the equipment, software, or specifications 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 affiliates shall not be liable for any damages (including, but not limited to, consequential, indirect or

incidental, special damages or loss of profits 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.

Branchburg, New Jersey

08876

Tel: (908) 253-9080

Fax: (908) 253-9086

www.fiber-span.com

Remote Fiber Node (RFN) User Manual

2. Introduction

The FS47 Remote Fiber Node (RFN) is a multi-service equipment designed to extend multiple

wireless carrier services such as 700, 800/900 iDEN, Cellular, PCS, AWS, WiFi and WiMAX.

The RFN’s unique design allows it to be easily adapted to meet the demands of new

generations of communication schemes.

All three DAS interface ports are capable of providing a high linear output power greater than

25 dBm per band.

Incorporating a unique feature, the system provides three downlink/ uplink RF ports for

connection to distributed antenna systems (DAS) capturing distributing and launching, the

many frequency bands at once using Dense Wavelength Division Multiplex (DWDM)

technology allowing simultaneous extended wireless coverage from many of the carrier services.

The RFN utilizes a rugged enclosure to withstand high vibration, and the front façade of each

plug-in module has a large heat sink for efficient heat dissipation. The RFN employs modular

construction, offering trouble-free access to individual carrier services for maintenance and

upgrade, without disrupting the operation of any of the others.

Remote Fiber Node (RFN) User Manual

3. Revision History

VersionDescriptionDateAuthor

0.1Draftrelease8‐Mar‐2011C.M.

Remote Fiber Node (RFN) User Manual

4. Table of Contents

1.Limitation of Liability ............................................................................................................. 2

2.Introduction ............................................................................................................................. 3

3.Revision History ..................................................................................................................... 4

4.Table of Contents .................................................................................................................... 5

5.Warnings ................................................................................................................................. 7

6.Product Overview ................................................................................................................... 8

6.1.WiFi .................................................................................................................................. 9

6.2.iDEN................................................................................................................................. 9

6.3.AWS ............................................................................................................................... 10

6.4.700 .................................................................................................................................. 11

6.5.Cellular ........................................................................................................................... 12

6.6.Extended PCS ................................................................................................................. 12

7.Block Diagram ...................................................................................................................... 13

7.1.RFN Block diagram ....................................................................................................... 13

7.2.Plug-in ............................................................................................................................ 14

7.3.System Block Diagram................................................................................................... 14

7.4.Optics ............................................................................................................................. 15

8.General .................................................................................................................................. 19

8.1.RF ................................................................................................................................... 19

8.2.Optical ............................................................................................................................ 19

8.3.Alarm Monitor and Control Software ............................................................................ 21

8.3.1.PC Requirements .................................................................................................... 21

8.3.2.Launch Program ...................................................................................................... 21

8.3.3.Firmware Revision .................................................................................................. 21

8.3.4.General Settings ...................................................................................................... 21

8.3.5.Username / Password .............................................................................................. 21

8.3.6.Default and Status Settings ..................................................................................... 21

8.3.7.Block Diagram ........................................................................................................ 21

8.3.8.Controls ................................................................................................................... 21

8.3.9.Alarm Settings ........................................................................................................ 21

8.3.10.Software Windows .............................................................................................. 21

8.3.11.Alarms and Controls............................................................................................ 21

8.4.Connector Type .............................................................................................................. 21

8.5.Mechanical ..................................................................................................................... 21

8.6.Switches & Indicators .................................................................................................... 21

9.Installation............................................................................................................................. 22

9.1.Mounting ........................................................................................................................ 22

9.2.Optical Connections ....................................................................................................... 22

9.3.Tools ............................................................................................................................... 24

9.4.Grounding....................................................................................................................... 24

10.General Precautions ........................................................................................................... 25

11.Startup Checklist ................................................................................................................ 26

11.1.Equipment List ........................................................................................................... 26

11.2.On Site Requirements ................................................................................................. 26

Remote Fiber Node (RFN) User Manual

12.Maintenance ....................................................................................................................... 27

12.1.Periodic Inspection Checklist ..................................................................................... 27

12.2.Preventative Measure for Optimal Operation ............................................................. 27

12.2.1.Optical Maintenance ........................................................................................... 27

12.2.2.RF ........................................................................................................................ 27

13.Factory Settings ................................................................................................................. 28

14.Specifications ..................................................................................................................... 29

14.1.Electrical Specifications ............................................................................................. 29

14.1.1.FS47R .................................................................................................................. 29

14.1.2.Plug-in ................................................................................................................. 29

14.2.Mechanical Specifications .......................................................................................... 30

14.2.1.Chassis ................................................................................................................. 30

14.2.2.Plug-in ................................................................................................................. 30

14.3.Other Specifications ................................................................................................... 30

15.Outline Drawing................................................................................................................. 31

16.Illustrations ........................................................................................................................ 32

16.1.Internal ........................................................................................................................ 32

16.2.External ....................................................................................................................... 32

16.3.Plug-in DC .................................................................................................................. 32

17.Troubleshooting ................................................................................................................. 33

17.1.RF ............................................................................................................................... 33

17.2.Optics .......................................................................................................................... 33

17.3.Ethernet ....................................................................................................................... 33

18.Warranty ............................................................................................................................ 34

18.1.General Warranty ....................................................................................................... 34

18.2.Limitations of Warranty ............................................................................................. 34

18.3.Limitations of Damages.............................................................................................. 34

18.4.Return Material Authorization (RMA) ....................................................................... 34

19.FCC Required Statement ................................................................................................... 35

20.Glossary ............................................................................................................................. 36

21.Reference Documents ........................................................................................................ 37

22.Company Information ........................................................................................................ 38

Remote Fiber Node (RFN) User Manual

5. Warnings

Invisible radiation exits from areas labeled “Aperture”

All fibers at both ends of the optical link connected before applying power to either fiber

transceiver unit and remote fiber node will prevent exposure.

Follow and comply with all site safety policies.

Exclamation point denotes attention to statement.

Terminate all RF ports with a 50 Ohm load.

While in operation do not touch RFN front façade heat sink because surface is very HOT.

Maximum RF Input level -30 dBm.

Only a qualified technician shall be allowed to operate the unit, after reading and understanding

all the guidelines in this manual.

Remote Fiber Node (RFN) User Manual

6. Product Overview

A Remote Fiber Node (RFN) chassis has 7 compartments that houses a variety of modular plug-in

modules, of which their internal components and rear-mount mechanisms are mapped according to

operating frequency bands. Chassis inside slots have a mating rear receptacle that provides primary

power to the plug-ins as well as the RF Input / Output interface functions.

There is no optical interface between any of the plug-ins and the back receptacle.

As viewed with heat sink facing you, (from left-to-right) each chassis slot is dedicated to a frequency

band; a list of which is shown in Figure 1 below:

Slot 1 WiFi 2.4 GHz

Slot 2 Unused, but accommodates WiMAX

Slot 3 iDEN 800/900 MHz

Slot 4 AWS 2.1 GHz

Slot 5 700 MHz

Slot 6 Cell 850 MHz

Slot 7 PCS 1.9 GHz

Figure 1

Figure 2: Frequency Band Layout

Internally, the Plug-ins employ similar circuitry and layout designs using filters, attenuators, low

noise amps and power amplifiers for their respective allocated frequency band, excluding the WiFi

Plug-in.

For future upgrade purposes, the factory may re-position frequency band plug-ins slots from that

shown here.

All the plug-ins are HOT-swappable which allows removal and replacement while the RFN is ON

and operating.

Remote Fiber Node (RFN) User Manual

6.1. WiFi

WiFi is short for “Wireless Fidelity”, and uses IEEE 802.11 specifications with protocols for

communicating end-to-end via a wireless network.

The WiFi Plug-in has 3 access points each one independently going to antenna 1,2 and 3 with

the Channel set to:

Access‐PointPositionAntennaIDChannelName

LeftANT1WiFiChannel1

CenterANT2WiFiChannel6

RightANT3WiFiChannel11

For 802.11g operation, typical receive sensitivity ranges from -73 dBm at 54 Mbps to -96 dBm

at 1 Mbps. For all practical purposes, as Mbps data rate doubles sensitivity drops by 3 dB.

Indoor wireless coverage ranges from 460 ft. at 1 Mbps to 105 ft. at 54 Mbps data rate.

Outdoor use (compared to indoor) with no obstruction distance doubles between 1- 48 Mbps,

but not much higher of 120 ft. at 54 Mbps.

Measurements were taken with a 2.2-dBi dipole antenna for 2.4 GHz.

Maximum power draw per access point is 12.95 Watts x 3 equals 38.85 Watts Total.

For added isolation access point ports have an in-line band pass filter. Instrument operates in

the 2400-2483.5 MHz region.

Figure 3 displays Plug-in WiFi RF connections in rear.

Figure 3

6.2. iDEN

The iDEN Plug-in is a bi-directional service module comprising of uplink and downlink

circuitry. Internally it houses all the devices that condition, filter and amplify the specified

frequency band while rejecting the adjacent family bands operating within the chassis.

Remote Fiber Node (RFN) User Manual

Although it accommodates both paths, circuitry is kept shielded providing 120 dB of isolation

between them which prevents any RF crosstalk.

The iDEN uplink has 2 independent internal inputs that combined iDEN 8 and iDEN 9

allocated bands. Downlink last stage output power amplifier accommodates both iDEN 8 and

iDEN 9 frequency bands.

Circuitry is similar in the UL and DL paths, with uplink RF Gain at 40 dB while the downlink

has more gain, with the addition of a high power amplifier module that provides 40 dB to drive

the DAS for a total of 70 dB from end to end. In both directions, inserted between the pre-

amplifier and mid-amplifier is an attenuator with a 31 dB adjustment range.

Instrument operates in the iDEN8: UL 817-824, DL 862-869, iDEN9: UL 896-902, DL 935-

941 MHz regions.

Figure 4 displays Plug-in iDEN RF connections in rear.

Figure 4

6.3. AWS

The AWS Plug-in is a bi-directional service module comprising of uplink and downlink

circuitry. Internally it houses all the devices that conditions, filters and amplifies the specified

frequency band while rejecting the adjacent family bands operating within the chassis.

Although it accommodates both paths, circuitry is kept shielded providing 120 dB of isolation

between them which prevents any RF crossover.

Circuitry is similar in the UL and DL paths, with uplink RF Gain at 40 dB while the downlink

has more gain, with the addition of a high power amplifier module that provides 40 dB to drive

the DAS for a total of 70 dB from end to end. In both directions, inserted between the pre-

amplifier and mid-amplifier is an attenuator with a 31 dB adjustment range.

Integrated with the AWS plug-in is E911 input port that provides capability for an emergency

signal path that is combined, condition, and amplified using the same downlink output power

amplifier module. Because it is transparent not external peripherals required.

Remote Fiber Node (RFN) User Manual

Instrument operates in the UL 1710-1755, DL 2110-2155 MHz region.

Figure 5 displays Plug-in Cell, PCS, and AWS RF connections in rear which are the same for all

three bands.

Figure 5

6.4. 700

The 700 Plug-in is a bi-directional service module comprising of uplink and downlink circuitry.

Internally it houses all the devices that conditions, filters and amplifies the specified frequency

band while rejecting the adjacent family bands operating within the chassis.

Although it accommodates both paths, circuitry is kept shielded providing 120 dB of isolation

between them which prevents any RF crossover

Circuitry is similar in the UL and DL paths, with uplink RF Gain at 40 dB while the downlink

has more gain, with the addition of a high power amplifier module that provides 40 dB to drive

the DAS for a total of 70 dB from end to end. In both directions, inserted between the pre-

amplifier and mid-amplifier is an attenuator with a 31 dB adjustment range.

Instrument operates in the UL1: 698-716, UL2: 776-787, DL 728-757 MHz regions.

Figure 6 displays Plug-in 700 RF connections in rear.

Figure 6

Remote Fiber Node (RFN) User Manual

6.5. Cellular

The CELLULAR Plug-in is a bi-directional service module comprising of uplink and downlink

circuitry. Internally it houses all the devices that conditions, filters and amplifies the specified

frequency band while rejecting the adjacent family bands operating within the chassis.

Although it accommodates both paths, circuitry is kept shielded providing 120 dB of isolation

between them which prevents any RF crossover.

Circuitry is similar in the UL and DL paths, with uplink RF Gain at 40 dB while the downlink

has more gain, with the addition of a high power amplifier module that provides 40 dB to drive

the DAS for a total of 70 dB from end to end. In both directions, inserted between the pre-

amplifier and mid-amplifier is an attenuator with a 31 dB adjustment range.

Instrument operates in the UL 824-849, DL 869-894 MHz

Figure 5 displays RF connections in rear.

6.6. Extended PCS

The Extended PCS Plug-in is a bi-directional service module comprising of uplink and

downlink circuitry. Internally it houses all the devices that conditions, filters and amplifies the

specified frequency band while rejecting the adjacent family bands operating within the chassis.

Although it accommodates both paths, circuitry is kept shielded providing 120 dB of isolation

between them which prevents any RF crossover.

Circuitry is similar in the UL and DL paths, with uplink RF Gain at 40 dB while the downlink

has more gain, with the addition of a high power amplifier module that provides 40 dB to drive

the DAS for a total of 70 dB from end to end. In both directions, inserted between the pre-

amplifier and mid-amplifier is an attenuator with a 31 dB adjustment range.

Integrated with the Extended PCS plug-in is E911 input port that provides capability for an

emergency signal path that is combined, condition, and amplified using the same downlink

output power amplifier module. Because it is transparent not external peripherals required.

Instrument operates in the UL 1850-1915, DL 1930-1995 MHz region.

Figure 5 displays RF connections in rear.

Note: the rear plug-in RF connections shown in this section, upon looking into the RFN

chassis (facing you), the connections are mirrored.

Remote Fiber Node (RFN) User Manual

7. Block Diagram

7.1. RFN Block diagram

800/900

MHz

800/900

MHz

LNA

Cellular

AWS

900 MHz

PCS

Reject 894

Reject 896

RFN Block Diagram

L700 MHz

AWS

700 MHz

AWS

LNA

Wi-MAX

LNA

Multiplexer

ACCESS POINTS

Cell

PCS

Cell

To DAS

800 MHz

700

LNA

RFN Plug-Ins

Service

Group 1

Service

Group 2

Service

Group 3

DWDM

De-Mux

DWDM

Mux

Ethernet Media

Converter / GE

Switch

Multiplexer

CDMA

Figure 7

Figure 7 displays the internal components and their connections, including optical interfaces

which come from the left-end while the right-end are the DAS connections.

Figure 8 is a typical internal configuration of a Plug-in. As depicted, uplink and downlink are

within the confines of the plug-in but shielded from each other.

Shown on the plug-in module block diagram’s right side are the rear plug-in connectors.

Remote Fiber Node (RFN) User Manual

7.2. Plug-in

Figure 8

7.3. System Block Diagram

Figure 9 demonstrates a 1 x 4 system link configuration comprising of 4 RFNs and Headend

segments that makeup a link, such as OMU, FTU-RF, FTU-E and RIS. RIS is the last F-S

equipment interfacing with the end-user Base Transceiver Station (BTS).

In this section, an overview is provided of the Headend equipment incorporated as part of a

typical RFN application.

Optical Multiplex Unit (OMU) houses all the passive optical devices interfacing with incoming

and outgoing fiber bundles which are then neatly individualized, routed and channeled to

interface with the Optical Add/Drop Multiplex (OADM). Next, each designated ITU

connection interfaces with the FTU-RF and FTU-E.

Fiber Transceiver Unit – Radio Frequency (FTU-RF) houses all the active optical devices that

converts light into electrical and vice-versa launches light from received electrical. In the

receiver there is filtering, post amplification, and gain adjustability for fine tuning as required.

Remote Fiber Node (RFN) User Manual

Fiber Transceiver Unit – Ethernet (FTU-E) houses the media converter.

??-Write a brief summary.-

Radio Interface System (RIS) houses all the RF devices that condition, filter, rssi and control

gain that is required between the BTS and FTU-RF, in part because an ideal RF level into FTU

is 0 dBm and levels from BTS are considerably higher up to 30 dBm. As planned, based on the

service group, configuration for simplex, duplex and full duplex or combination of them are

arranged in the RIS.

Fibers interconnecting the FTU-RF, OMU and RFN are 9/125 um single mode.

Fiber medium operational range is from 0 to 8 dBo optical loss.

Figure 9

7.4. Optics

Behaving identical all 3 internal fiber optic transmitters (FOTX) that converts the electrical

input into output modulated light using a cooled distributed feedback (DFB) laser.

Figure 11 displays 3 optical links that represent the Service Groups for the downlink and

another alike setup makes up the uplink.

Figure 10

Remote Fiber Node (RFN) User Manual

Figure 11

Note: Service Group (SG) 3 has provisions for WiMAX, pending its release.

Remote Fiber Node (RFN) User Manual

DWDM Configuration

Tucked in the RFN lower left tier is the Add Drop Multiplex arrangement, housing all the

optics and external interface connections.

Designated optical channels are ITUs 26,30,34,38 for the downlink (DL) path and ITUs 26, 30,

34 for the uplink (UL) path which are dedicated for the Service Groups (SG1, SG2, SG3)

excluding the Ethernet paths. Duplex configuration allows use of the same ITU channels, see

Error! Reference source not found..

DL 34 Common DL Port

DL 30

DL 26

DL 38

UL 34 Common UL Port

UL 30

UL 26

Uplink

Mux

Segment

Downlink

DeMux

Segment

Figure 12

Remote Fiber Node (RFN) User Manual

Beneath the optical housing is a shallow splice tray compartment for the end-user to loop, make

interconnections, and secure the fibers.

Remote Fiber Node (RFN) User Manual

8. General

8.1. RF

Notwithstanding the specific operating frequency band of each plug-in, circuitry are alike with a

40 dB gain on the uplink path and 70 dB gain on the downlink path. Uplink noise figure is

optimized to be lower than 2. Downlink can drive DAS in excess of 25 dBm per band. And In

both paths, for tuning, the same attenuator device is implemented that provides 31 dB of range.

Multiplexer is the external gateway that combines all the plug-in up/down paths user interface

ports which introduces 12 dB loss for Ant1 and Ant 3 while Ant 2 has an additional 6 dB more

loss.

8.2. Optical

All optics are housed in the lower left tier compartment called “Optical Stack”, namely because

carefully inside, sections are one on top of the other. Beginning with the FOTXs, middle

FORXs and last the OADMs.

FOTX further discussion

Each unique 1.5 um wavelength is routed into their corresponding OADM channel exiting the

common conduit and launched through the interface optical port uplink path.

At factory, FOTXs are normalized called TX Set-point that regulate batch with a consistent

resultant output. Laser incorporates average optical power feedback keeping output power

steady over temperature and lifetime. For best performance laser bias is also tuned.

A typical UL FOTX optical output power is 6 dBm, minus 2 dB loss through the OADM for a

net launched of 4 dBm. Result using Optical Meter will be the composite power. But with an

optical spectrum analyzer (OSA) one or all side-to-side wavelengths spectrum are displayed on

screen for precise measurement.

Figure 13 demonstrates how the optical configuration for the downlink behaves as a function

of muxing the lasers through the OADM. Measurement at the optical port with an optical

meter yields 8.8 dBm, on the other hand measuring with an OSA outcome is 4.0 dBm for each

laser.

For the uplink path each laser launch power is typically 6 dBm but no higher than 8 dBm and

would put composite launched power at 10.8 dBm.

Remote Fiber Node (RFN) User Manual

Figure 13

Note: Allow for 0.25 dBo loss for every interconnection.

FORX discussion

On the opposite side, complimenting is the fiber optic receiver (FORX) which converts the

optical input to an electrical output for the downlink (DL) path. By also adding an OADM in

the receiver side only matching light goes through while rejecting all others.

Most photo detector optical input limits are about 8 dBm, but the system receivers will never

see such high levels, with practical values at 5 dBm or much lower due to the external fiber

medium optical loss which is around 4 dBo.

Further explanation, with a 7 dBm source optical power at the Headend which is split 4-Ways

(-7dBo) then the OADM thru loss (-2 dBo) and a typical (-4 dBo) loss thru fiber medium,

putting the upper optical input limit of the fiber receiver at -6 dBm. So the upper limits are un-

reachable into FORX.

Alarm threshold for excessive optical loss is set to -14 dBm which is a 4 dBo margin from the

expected fiber medium maximum loss of 8 dBo.

Remote Fiber Node (RFN) User Manual

8.3. Alarm Monitor and Control Software

8.3.1. PC Requirements

8.3.2. Launch Program

8.3.3. Firmware Revision

8.3.4. General Settings

8.3.5. Username / Password

8.3.6. Default and Status Settings

8.3.7. Block Diagram

8.3.8. Controls

8.3.9. Alarm Settings

8.3.10. Software Windows

( In ascending order insert windows of all the settings in use)

Downlink

Uplink

8.3.11. Alarms and Controls

 FOTX temp, power

 PA: FPM, VSWR

8.4. Connector Type

RF connections are made using DIN-female connectors.

Optical connectors are SC/APC type for downlink / uplink signal paths, and LC connectors

for Ethernet paths.

8.5. Mechanical

All Plug-ins are secured each with 10 tamper resistant pin-in-Hex socket cap screws size 8-32 x

¾ inches in length.

Bottom access panel-door is secured with twenty-one and side panel-doors each require 8

tamper resistant pin-in-Hex socket cap screws size 8-32, ½ inches in length, totaling 37.

8.6. Switches & Indicators

TBD.

Remote Fiber Node (RFN) User Manual

9. Installation

9.1. Mounting

The wall or ceiling bolts securing unit must be sufficiently able to carry the weight of the RFN

which must be aligned properly balancing weight throughout the supports. While mounting the

RFN a platform underneath must sustained all its weight until all the mounting bolts are tighten

and secured. See outline section in this manual for bracket hole dimensions and recommended

bolt size.

Fully populated unit nearly weighs 200 lbs; therefore proper lifting equipment is required to

bear its weight during installation. Do not attempt to install equipment on your own.

For proper air flow, keep a minimum clearance of 8 inches in front, underneath and top of the

black heat-sink section of the RFN.

Allow at least 14 inches in front of the unit for removal and installation of the Plug-ins. Each

plug-in comes out independently of the other. Remove all the screws around the perimeter of

the plug-in, then to remove the plug-in, hold both handles and pull horizontally straight out

from its housing slot.

9.2. Optical Connections

Travelling from the outside 4 External 9/125 um single mode fiber strands (2- SC/APC, 2- LC

connectors) can either be inserted through the side (left or right) access panels.

See Figure 14 Side Access Panel.

Remote Fiber Node (RFN) User Manual

Figure 14 Side Access Panel

After inserting the 4 fibers through aperture, route two, (DL and UL) fibers inside all the way

to the optical stack. See Figure 15 Optical Stack.

View is from underneath the RFN bottom access

panel. The DL and UL fiber strands are distinguish

by their connector type which is SC/APC type, see

Figure 16.

The inner fiber adapter (away) is the uplink path

connection and the outer fiber adapter (near) is the

downlink path connection.

Incoming Ethernet fibers 3, 4 connect to the media

converter commonly called EtherDevice Switch

(EDS) see Figure 18. This Figure to the left also

shows the 3 Access Points connections that come

from the WiFi Plug-in.

Fiber strands for the Ethernet interface are noticeable by the dual LC connectors see Figure 17.

Here shown paired TX / RX that mate to the SFP module.

Figure 15 Optical Stack

Near

Away

Figure 17 Figure 16

Left Ant 1

Center Ant 2

ht Ant 3

Fibers & Power In

Remote Fiber Node (RFN) User Manual

Figure 18

9.3. Tools

All external screws are the same head type 5-32, for Plug-in slightly longer, at ¾” and side /

bottom access panels are ½” pin-in-Hex screw, see Figure 19.

Only a single 5-32 Hex hand driver required, see Figure 20 for

Plug-in and access panel maintenance.

9.4. Grounding

Immediately inside the RFN side access panels are ground lugs to attach incoming ground

wires. See Figure 21 which shows the ground wire with lug inserted into bolt and secured with

an external tooth lock washer nut. ?? lock-nut material.

Figure 21

Figure 20

Figure 19

Ethernet Connection3 Access Point Connec

ions

Remote Fiber Node (RFN) User Manual

10. General Precautions

 Do not change the parameters unless instructed to do so by an authorized supervisor and

you are a qualified technician to operate instrument.

 Do not attempt to move product without the proper tools and man power, because product

is extremely heavy.

 Terminate all the RF ports with a 50 Ohm load prior to powering up.

Remote Fiber Node (RFN) User Manual

11. Startup Checklist

Confirm all necessary parts accompanied product before beginning installation or operation.

11.1. Equipment List

Remote Fiber Node (RFN) fully populated*

 FS42R-AP-3  FS42R-700-5

 FS42R-iDEN-2  FS42R-CELL-2

 FS42R-AWS-5  FS42R-PCS-5

*Does not include WiMAX Plug-in.

11.2. On Site Requirements

On site will require a 3 wire (Hot, Neutral, and Ground) 120 VAC input to the RFN including a

separate earth ground bus bar that connects to the RFN chassis.

Two 9/125 um single-mode fiber strands with SC/APC connectors, one for the downlink path

and the other for the uplink path. Two 9/125 um single-mode fiber strands with LC connectors

for the Ethernet connections.

Three high quality RF cables with DIN-Male connectors that attached from the individual DAS

antennas to the Left, Center, and Right RFN interface ports.

Remote Fiber Node (RFN) User Manual

12. Maintenance

12.1. Periodic Inspection Checklist

Perform an On-Site assessment of the wireless coverage for use as a baseline, so that upon re-

inspecting quarterly or semiannually a comparison is made to ensure peak performance

throughout equipment lifespan.

Test and keep a record of the insertion loss of all the fiber strands that interconnect with the

equipment from end-to-end.

12.2. Preventative Measure for Optimal Operation

12.2.1. Optical Maintenance

Once optical connectors are secured the ports no maintenance is required. However when

necessary to unplug it, immediately cap the tip with cover, see Figure 22. This prevents

scratching exposed glass tip which deteriorates performance and possibly becoming unusable.

12.2.2. RF

Once RF connectors are secured no maintenance is required. However perform periodic on-

site wireless coverage assessment to compare it to the baseline this will ensure optimum

performance.

Figure 22

Cover

SC/APC

Connector

Remote Fiber Node (RFN) User Manual

13. Factory Settings

Tuning and testing performed at factory are:

FibertransmitterFOTXFiberreceiverFORXRF

 Opticalpower

 TXSet‐point

 LaserBias

 TemperatureAlarm

 Opticalminimuminput

threshold

 Gainat4dBoloss

 AttenuationRange

 Twotoneintermodulation

interceptpoint

 OutputNoise

Remote Fiber Node (RFN) User Manual

Figure 23

Figure 24

14. Specifications

14.1. Electrical Specifications

Externally 3 wires (Hot, Neutral, Ground) conduit route through either

side (left / right) access panel orifice (Hot, Neutral) go to two in-line

breakers that connect to VAC In (range 85-265) power supply,

Outputting 28 Volt DC with 600 Watts capability providing power to all

the power amplifiers and in part regulated to 48 and 12 Volts for

discrete devices.

The Hot and Neutral wires connect internally to 2 in-line 1 pole 10 amp

circuit breaker (FS-Pn 760-0025 see Figure 23), mfr’s pn 1BU10 by

Altech Corp., that provides RFN protection.

Incoming external ground (GND) wire connects inside to a chassis

ground lug.

In the event primary power supply shuts off, as backup, design incorporates a second parallel

equivalent power supply so that the equipment will continue to operate without interruption.

Both breakers are DIN Rail mounted and

have the UL508 safety standard.

For recommended terminal connection to

the circuit breaker see Figure 24.

14.1.1. FS47R

Fully populated including WiMAX,

AC Current is 4.3 Amps / 120 VAC.

14.1.2. Plug-in

All VCC plug-ins are 28 Volts, except

FS42R-AP-3 which is 48 Volts. Figure 25

shows current for each plug-in.

Remote Fiber Node (RFN) User Manual

ItemCurrent(A)

FS42R‐AP‐30.81

FS42R‐IDEN‐23.63

FS42R‐AWS‐54.00

FS42R‐700‐53.18

FS42R‐CELL‐22.58

FS42R‐PCS‐52.58

Figure 25

14.2. Mechanical Specifications

14.2.1. Chassis

Fully populated (7 Slots) weighs 198 lbs.

14.2.2. Plug-in

Plug-in typical weight is 12 lbs.

14.3. Other Specifications

Approvals testing in process for IP66 environmental rating.

(i.e., MTBF, FCC, Underwriters Laboratory, IP66, Certificates, Warranty)

Remote Fiber Node (RFN) User Manual

15. Outline Drawing

An outline drawing of the RFN is shown below. Dimensions are in inches [enclosed brackets in

mm].

Remote Fiber Node (RFN) User Manual

Figure 26

16. Illustrations

16.1. Internal

All plug-in modules are identical in size. Rear DC

connections are the same pin-out while RF

connections are custom to each plug-in. Figure 26 is

the isometric rear view of a plug-in. The downward

extended black facade is the heat sink which

maximizes surface area, and thus heat transfer.

16.2. External

??-del- Include identification of all the ports.

16.3. Plug-in DC

Figure 27 displays the DC connector in rear of all the plug-

ins. It also provides the data connection between

the plug-ins and the Alarm Monitor and Control network. As shown in the illustration, diagonal

corners have a locking flat pin that blindly aligns with the mating socket.

Figure 27

Remote Fiber Node (RFN) User Manual

17. Troubleshooting

The RFN is designed and built to provide trouble-free performance without the need for service. If

it does not appear to be functioning properly, please follow these troubleshooting steps.

17.1. RF

17.2. Optics

17.3. Ethernet

Remote Fiber Node (RFN) User Manual

18. Warranty

18.1. General Warranty

The RFN carries a standard warranty period of one (1) year unless otherwise indicated on the

shipping packages as noted in the purchase order agreement.

18.2. Limitations of Warranty

The warranty is limited to the repair or replacement of the defective product. Fiber-Span will

decide which remedy to provide for defective components as its own discretion. Fiber-Span

shall have a reasonable time after determining that a defective product exists to repair or replace

the problem unit. The warranty applies to any repaired or replaced products for the balance of

the applicable period of the original warranty or ninety (90) days from date of shipment of a

repaired or replaced component, whichever is longer.

The Fiber-Span standard warranty does not cover products which have been received

improperly packaged, altered, or physically damaged. For example, broken warranty seal, labels

exhibiting tampering, physically abused enclosure, broken pins on connectors, any

modifications made without Fiber-Span authorization, will void all warranty.

18.3. Limitations of Damages

The liability for any defective product shall in no event exceed the purchase price for the

defective product. Fiber-Span has no liability for general, consequential, incidental or special

damages.

18.4. Return Material Authorization (RMA)

No product may be returned directly to Fiber-Span without first getting an approval from

Fiber-Span. If it is determined that the product may be defective, you will be given an RMA

number and instructions in how to return the product.

An unauthorized return, i.e., one for which an RMA number has not been issued, will be

returned to you at your expense. Authorized returns are to be shipped to the address on the

RMA in an approved shipping container. It is suggested that the original box and packaging

materials should be kept if a defective product needs to be shipped back to Fiber-Span.

To request an RMA, please call 908.253.9080.

Remote Fiber Node (RFN) User Manual

19. FCC Required Statement

Manufacturers Notes

“Changesormodificationsnotexpresslyapprovedbythemanufacturercould“Void”the

user’sauthoritytooperatetheequipment”.

ThisequipmenthasbeentestedandfoundtocomplywiththelimitsforaClassAdigital

device,pursuanttoPart15oftheFCCRules.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instructions

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theirownexpense.

Thisdevicehasbeendesignatedtooperatewiththeantennashavingamaximumgainof

[9]dBifora1meterdistanceandantennashavingagaingreaterthan[15]dBiarestrictly

prohibitedforusewiththisdevice.Therequiredantennaimpedanceis[50]Ohms.

To improve and correct equipment performance the following can be performed.

1. Re-orient or relocate the receiving antenna.

2. Increase the separation between the equipment and receiver.

3. Connect the equipment into an outlet on a different circuit from that to which the receiver is

connected.

4. Consult the dealer or an experienced radio/TV technician for help.

Remote Fiber Node (RFN) User Manual

20. Glossary

dBeunitofmeasureforRF.

dBounitofmeasureforOpticallosswhich

translates1dBoequals2dBeinRF.

DASDistributedAntennaSystem

DWDMDenseWavelengthDivisionMultiplex

FOFiberOptic

F1,F2Frequencyone,Frequencytwoalsocalledtones

Headend

Housesthelocalfibertransmitter/receiver

andinterfaceswiththeBasetransceiver

station



MbpsMegabitspersecond

RFRadioFrequency

RFNRemoteFiberNode

RXReceiver

SASpectrumAnalyzer

SFDRSpurFreeDynamicRange

SG1SignalGenerator1alsocalledsignalsource

SG2SignalGenerator2

TOIThirdOrderInterceptalsocalledOIP3

TTTTwoToneTest

TXTransmitter

Remote Fiber Node (RFN) User Manual

21. Reference Documents

-del- Include list of critical loose leaflets documents comprising user manual.

Remote Fiber Node (RFN) User Manual

22. Company Information

Fiber Span FS42R-AWS-5 Repeater; Plug-in Service Module, 2.1 GHz AWS Band User Manual

Fiber-Span LLC Repeater; Plug-in Service Module, 2.1 GHz AWS Band

User Manual

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