Fiber Span FS31 15C User Manual
User Manual
FS31R-15C VHF RRU
162 – 175 MHz Fiber-Fed Remote Repeater Unit (RRU)
4 Watts Linear Output Power
Version 3
5/1/2012
3434 Rt. 22W ▪ Suite 140 Branchburg, NJ 08876
908.253.9080 ▪ fiber-span.com
1. Limitation of Liability
Copyright 2011 Fiber-Span. All rights reserved. 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 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
3434 Rt. 22W ▪ Suite 140 Branchburg, NJ 08876
908.253.9080 ▪ fiber-span.com
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3434 Rt. 22W ▪ Suite 140 Branchburg, NJ 08876
908.253.9080 ▪ fiber-span.com
Version
Description
Date
Author
1
Draft release
5/1/2012
C.M.
2
Update FCC Statement
24-May-12
J.S.
3
Changed MPI distances to 1.5 and 2.5 meters
31-May-2012
J.S.
2. Introduction
The FS31R-15C Very High Frequency (VHF) Fiber Optic Remote Repeater Unit (FO-RRU) is a
linear 4 Watts (36 dBm) RF power amplifier covering the frequency range from 162 to 175
MHz. The unit offers fiber input / output interface for long haul operation through a single mode
fiber medium.
Device improves in-building wireless coverage enhancement to eliminate dropped calls and poor
reception by amplifying and re-broadcasting a cell tower signal throughout a building.
While the fiber section is bandwidth unlimited, the internal RF components are optimized for
best operation in the VHF bandwidth. RF has a separate input and output port to accommodate
simplex application; however this product series can contain a duplexer for a bi-directional
configuration ensuring uplink and downlink into a distributive antenna system (DAS).
3. Revision History
1 3434 Rt. 22W ▪ Suite 140 Branchburg, NJ 08876
908.253.9080 ▪ fiber-span.com
4. Table of Contents
1. Limitation of Liability............................................................................................................. 1
2. Introduction ............................................................................................................................. 1
3. Revision History ..................................................................................................................... 1
4. Table of Contents .................................................................................................................... 2
5. Warnings ................................................................................................................................. 4
6. Main Product Name ................................................................................................................ 5
7. Sub Product Name .................................................................................................................. 5
8. System Application ................................................................................................................. 6
9. Startup Checklist ..................................................................................................................... 7
10. Installation............................................................................................................................ 7
10.1. Connecting RF ............................................................................................................ 7
10.2. Mounting installation .................................................................................................. 8
11. Block Diagram ..................................................................................................................... 8
12. Specifications ....................................................................................................................... 9
12.1. Electrical ..................................................................................................................... 9
12.2. Mechanical ................................................................................................................ 11
Wall Mount Version ............................................................................................................. 11
Rack Mount Version ............................................................................................................. 11
12.3. Tools ......................................................................................................................... 11
12.4. On Site Requirements ............................................................................................... 12
13. General Precautions ........................................................................................................... 12
14. Maintenance ....................................................................................................................... 12
2 3434 Rt. 22W ▪ Suite 140 Branchburg, NJ 08876
908.253.9080 ▪ fiber-span.com
14.1. Preventative Measure for Optimal Operation ........................................................... 13
15. Factory Settings ................................................................................................................. 15
16. Outline Drawing................................................................................................................. 16
17. Front / Rear Panel Ports and Interfaces............................................................................. 18
18. FCC Statement ................................................................................................................... 20
19. Warranty ............................................................................................................................ 21
19.1. General Warranty ...................................................................................................... 21
19.2. Limitations of Warranty ............................................................................................ 21
19.3. Limitations of Damages ............................................................................................ 21
19.4. Return Material Authorization (RMA) ..................................................................... 21
20. Company Information ........................................................................................................ 22
Appendix A FS31R-15C RRU Media Converter ................................................ A-1
3 3434 Rt. 22W ▪ Suite 140 Branchburg, NJ 08876
908.253.9080 ▪ fiber-span.com
** Pay special attention to statements with an exclamation point symbol next to it. **
Terminate every RF port with a 50 Ohm load.
RF Signs
5. Warnings
Invisible laser radiation exits from areas labeled “Aperture”
By connecting all the fiber connector ends of the optical link before applying power to both
Figure 1: Laser Warning Label
fiber transceiver unit and remote fiber node, it will prevent exposure to invisible laser
radiation.
Follow and comply with all site safety policies, local codes and rules ordinances.
Figure 2: Radio Frequency Notice
4 3434 Rt. 22W ▪ Suite 140 Branchburg, NJ 08876
908.253.9080 ▪ fiber-span.com
While in operation do not touch heat sink as surface is very HOT.
Device maximum composite optical input level is 7 dBm.
Only a qualified technician shall be allowed to operate the unit, after reading and
understanding all the guidelines in this manual.
Model Prefix
Model Midfix
Version
FS31R-15C
WM
Wall Mount
FS31R-15C
RM
Rack Mount
Part Number
Description
Quantity
180-0113
Gigabit Media Converter
1
180-0117
SFP Module
1
290-0310
DL Variable Digital Amplifier
1
290-0311
UL Variable Digital Amplifier
1
305-0359
Micro-Processor Computer
1
305-0361
Controller Board
1
390-0063
Dual WDM
1
495-0098
VHF High Power Amplifier
1
530-0169
VHF Duplexer
1
650-0043
12 Volt Fan (2 as inlet, 2 as outlet)
4
6. Main Product Name
There are two (2) main product versions:
7. Sub Product Name
Major Internal Parts:
5 3434 Rt. 22W ▪ Suite 140 Branchburg, NJ 08876
908.253.9080 ▪ fiber-span.com
Part Number
Description
Quantity
290-0061
Fiber Optic Transmitter / Receiver
1
The main parts are the same for the wall mount and rack mount versions excluding the RF cable
interfaces and wiring harnesses that vary in length. Some or all the parts are subject to change
without notice for the purpose of improving the product functionality.
8. System Application
The RRU is mounted in a strategic remote location where signal communication is poor or none
available determined by the system engineer assessment and is part of a large system
configuration with a headend. Integrated at the headend are elements that transmit, receive,
condition and transport signals simultaneously via two (2) dedicated single mode fiber medium
into an RRU and signal distributed and repeated for every remote unit.
One (1) fiber medium is for the downlink path and the other fiber medium is for the uplink path
optical interface ports RRU which is design for long haul up to 10 dBo of optical loss translating
into a useable uninterrupted fiber-distance of 28.5 Kilometers.
Downlink signals at the headend are condition by the base station unit (BSU) which accepts an
input power from the RF source between 0 dBm to 30 dBm and outputs signal levels of 0 dBm
with nominal at -10 dBm into the fiber transmitter unit.
A network management system (NMS) controls and configures the main elements the headend
location as well as the RRU hardware via dedicated Ethernet LAN internet connections within
the same fiber backbone. Lost of communication to and from the system is reported and logged
with the NMS.
6 3434 Rt. 22W ▪ Suite 140 Branchburg, NJ 08876
908.253.9080 ▪ fiber-span.com
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