Fiber Span FS31-15C Booster User Manual

Fiber-Span LLC Booster

user manual

3434 Rt. 22W ▪ Suite 140 Branchburg, NJ 08876 908.253.9080 ▪ fiber-span.com 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
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1 3434 Rt. 22W ▪ Suite 140 Branchburg, NJ 08876 908.253.9080 ▪ fiber-span.com 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 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 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
3 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
4 3434 Rt. 22W ▪ Suite 140 Branchburg, NJ 08876 908.253.9080 ▪ fiber-span.com 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 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 ** Pay special attention to statements with an exclamation point symbol next to it. ** Terminate every RF port with a 50 Ohm load. 38RF SignsSign ExamplesFigure 1: Laser Warning Label
5 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. 6. Main Product Name There are two (2) main product versions: Model Prefix Model Midfix Version FS31R-15C WM Wall Mount FS31R-15C RM Rack Mount 7. Sub Product Name Major Internal Parts: 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 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.
7 3434 Rt. 22W ▪ Suite 140 Branchburg, NJ 08876 908.253.9080 ▪ fiber-span.com 9. Startup Checklist The rack mount version unit has a VAC inlet that comes with a six (6) feet 3 prong VAC cord and the wall mount version unit has an embedded six (6) feet 3 prong VAC cord that plugs to a common house hold AC outlet. To protect the device RF output port, it includes a 50 Ohm load terminator that should not be removed until the RF output cable is ready to connect to it. 10. Installation 10.1. Connecting RF Follow these steps for connecting and disconnecting RF cables to the unit. Sequence to connect: 1. Connect output load to the unit. 2. Apply power to the device. 3. Verify RF signal source is turned off. 4. Connect RF Input to the unit. (when fiber-fed, connect optical input to the unit). 5. Turn on the RF signal source input. Sequence to Disconnect: 1. Turn off the source RF input. 2. Disconnect the RF Input connection of the unit. (when fiber-fed, disconnect optical input to the unit). 3. Un-apply power to the unit. 4. Disconnect the output load of the unit.
8 3434 Rt. 22W ▪ Suite 140 Branchburg, NJ 08876 908.253.9080 ▪ fiber-span.com 10.2. Mounting installation In a well structured support wall that it is reinforced with a 1 inch thick plywood of additional backing, mount the enclosure using four (4) socket head cap screws size 3/8”-16, 1-1/2 inch length to bear the enclosure weight (80 lbs). 11. Block Diagram The FS31R-15 rack mount and wall mount unit internal parts are the same without internal duplexer is shown in Figure 3: Remote Repeater Unit (RRU) Block Diagram. Unit choices are with internal or external duplexer. 1 GHz Clock Figure 3: Remote Repeater Unit (RRU) Block Diagram Duplexer RF In/Out
9 3434 Rt. 22W ▪ Suite 140 Branchburg, NJ 08876 908.253.9080 ▪ fiber-span.com 12. Specifications 12.1. Electrical Dowlink Path RF Parameters Acronym Min Typical Max (1) Units Composite RF Input (2) RFin -15 -10 dBm Frequency Freq 169.5625 -- 173.825 MHz Flatness Flts -- -- +/- 2.0 dB RF Gain (3) RFG 48 50 56 dB Output Intercept Point OIP3 56.5 61.0 -- dBm Output Noise O.N. -114 -90 -75 dBm/1Hz Figure 4: UUT Downlink Test Setup Block Diagram
10 3434 Rt. 22W ▪ Suite 140 Branchburg, NJ 08876 908.253.9080 ▪ fiber-span.com Composite RF Out and Automatic Level Control ALC 36.0 37 dBm Forward Power Alarm FPM 39 40 dBm Test Frequencies F1/F2 172.000 – 172.500 MHz Calculated Values Spur Free Dynamic Range SFDR 100 dBm/2/3 Hz Uplink Path RF Parameters Acronym Min Typical Max (1) Units RF Input (4), (5) RFin -80 -55 -19 dBm Frequency Freq 162.175 166.4375 MHz Flatness -- -- +/- 2.00 dB RF Gain (3) -7 56 dB RF Out 0 3 dBm Output Noise -115 dBm/2/3Hz Test Frequencies F1, F2 164.000 – 164.500 MHz Calculated Values Spur Free Dynamic Range SFDR 100 dBm/2/3 Hz Noise Figure NF 2 8 -- (1) The electrical test conditions specified in this section is with a reference calibrated in factory unit using a 1 meter single mode fiber patch cord as the fiber medium equivalent to 0 dBo optical loss. (2) RF Input level is using a reference transmitter. (3) RF Gain measurement criteria are with attenuators at minimum attenuation.
11 3434 Rt. 22W ▪ Suite 140 Branchburg, NJ 08876 908.253.9080 ▪ fiber-span.com (4) Uplink RF input level at -20 dBm triggers the squelch and RF will shut off. (5) Factory test RF input level into reference fiber transmitter is -19 to -23 dBm. RF Gain Adjustment RF Gain has a wide adjustment range thus it is set to the minimum value of 37dB at 0 dBo loss and increases proportionally as the fiber medium optical loss goes up. Normalization of the Link RF Gain due to increase in optical loss: Increase up the RF Gain by 2 (dB) for every 1 (dBo) of fiber medium optical loss. Before verifying the RF Gain maximum level is attainable, decrease the RF input level by 20 dB, hence to -57 dBm, so that no compression of signal occurs. 12.2. Mechanical Wall Mount Version Allow at least 20 inches of space from the front of the unit (not including enclosure depth) for opening the door. Rack Mount Version Allow at least 20 inches of space from the front of the unit for installation and removal of the rack mount. 12.3. Tools Tools Purpose Medium/ Large hand held flat head screwdriver For opening front door of wall mount Tip
12 3434 Rt. 22W ▪ Suite 140 Branchburg, NJ 08876 908.253.9080 ▪ fiber-span.com 12.4. On Site Requirements For each RRU a three (3) wire (Hot, Neutral, and Ground) 120 VAC wall outlet including a separate earth ground bus bar that connects to the unit 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. A unit as a simplex configuration requires two (2) high quality RF cable with N-Male connector that attaches from the DAS to the RF Input and Output port. A unit as a duplex configuration requires only one (1) high quality RF cable with N-Male connector that attaches from the DAS to the bi-directional RF In/Out port. 13. General Precautions  Allow at least 6 inches of space into the air inlet and outlet of the unit, for proper air flow through the fan(s).  Do not change any of the parameters unless instructed to do so by an authorized supervisor and you are a qualified technician to operate device.  Do not attempt to move product without the proper tools and man power, because product is heavy.  Terminate all the unit RF ports with a 50 Ohm load prior to powering up. 14. Maintenance Periodically check and clean the unit fan(s) inlet and outlet by removing lint, dust and dirt with a lightly damped cloth. Air-in-a-Can is also a good product to have as part of a maintenance kit that includes an extended nozzle for hard to reach places. Do not hose the unit with water as it is not waterproof.
13 3434 Rt. 22W ▪ Suite 140 Branchburg, NJ 08876 908.253.9080 ▪ fiber-span.com Unit can be cleaned without being turned off, but do not disrupt or touch any moving mechanism in a way that can stall the motor. Replace a fan immediately upon fan alarm indicator turning on. Shut off the unit to preserve the lifespan when a fan or fans cannot be replaced immediately. 14.1. Preventative Measure for Optimal Operation 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, This prevents scratching exposed glass tip which deteriorates performance and possibly becoming unusable. Guidelines for using SC/APC Connectors and Adapters Warning! Improper maintenance and installation of optical connectors and adapters can permanently damage parts, and seriously degrade performance of fiber optic devices. All installation personnel using Fiber-Span equipment equipped with optics should review this document. Fiber-Span is not responsible for damage caused by improper use of optical equipment. Maintenance Cover SC/APC Connector Figure 5: SC/APC Connector with cap
14 3434 Rt. 22W ▪ Suite 140 Branchburg, NJ 08876 908.253.9080 ▪ fiber-span.com 1. Clean SC-APC connectors and Adapters with isopropyl alcohol (99%), dust free fiber optic cleaning tissues and 2.5mm mini-swabs. 2. While performing these steps protect connector tips from scratching. 3. Clean the inside of the fiber optic adapters and bulkheads using a swab lightly moistened in isopropyl alcohol. 4. Gently insert swab into the adapter orifice until the back-stop is reached, rotate swab clockwise several times. Discard swab after each use. 5. Lightly moisten a dust free fiber optic cleaning tissue with isopropyl alcohol. 6. Hold pre-moisten tissue touching connector tip (end face) and gently swipe connector in a figure “8” motion several times. 7. Always keep exposed connector tip and adapters covered with protective cap. Figure 6: SC/APC Adapter Figure 7: SC/APC Connector Installation 8. Align connector key (alignment post) with notch on the adapter or bulkhead. 9. After assuring keys align, push connector forward into adapter or bulkhead until connector clicks. Click indicates connector has been seated properly.
15 3434 Rt. 22W ▪ Suite 140 Branchburg, NJ 08876 908.253.9080 ▪ fiber-span.com 10. Always install SC/APC connectors into adapter or bulkhead by hand. Initial signal testing as a baseline and periodic signal level testing thereafter, will provide a historical log for keeping track of signal quality so that if required fine tuning of the system can be achieved for optimum performance. 15. Factory Settings Tuning and testing performed at factory are: Two tone test (TTT) that consist of: S-Parameters RF Input (dBm) S21 RF Output (dBm) S11 RF Gain (dB) S22 Output Third Order Intercept (dBm) Output Noise (dBm/ 1Hz) Calculated Values Spur Free Dynamic Range (SFDR) Noise Figure (NF) Assure key (alignment pin) on connector aligns with notch in adapter or bulkhead Always insert by hand After key is aligned, push connector into adapter or bulkhead Figure 8: SC/APC Connector attaching to Adapter
16 3434 Rt. 22W ▪ Suite 140 Branchburg, NJ 08876 908.253.9080 ▪ fiber-span.com Monitors and Controls Fiber Transmitter FOTX Fiber Receiver FORX RF Power Amplifier  Optical power  TX Set-point  Laser Bias  Temperature Alarm  Optical minimum input threshold  DL Attenuation Range  UL Attenuation Range  Automatic Level Control  Forward Power Monitor  Sensitivity 16. Outline Drawing Enclosure Type Size inches (mm) Rack Mount 19 x 18 x 6.95 (465.1 x 457.2 x 6.95) Wall Mount 20 x 20 x 9 (508 x 508 x 238.5) Figure 9: Wall Mount
17 3434 Rt. 22W ▪ Suite 140 Branchburg, NJ 08876 908.253.9080 ▪ fiber-span.com Figure 10: Rack Mount
18 3434 Rt. 22W ▪ Suite 140 Branchburg, NJ 08876 908.253.9080 ▪ fiber-span.com 17. Front / Rear Panel Ports and Interfaces Rack Mount 1. VAC In Inlet 2. Ground Lug 3. Circular Alarm Connector 4. Optical Input Port 5. Optical Output Port 6. RF In / Out Port 7. Power LED Indicator Rear View Front View 7 1 2 3 4 5 6 8 9
19 3434 Rt. 22W ▪ Suite 140 Branchburg, NJ 08876 908.253.9080 ▪ fiber-span.com 8. Alarm LED Indicator 9. USB Port Wall Mount Bottom Panel Ports and Interface 1. RF In / Out Port 2. Circular Alarm Connector 3. Optical Input Port 4. Optical Output Port 5. VAC Cord 6. Ground Lug Bottom View 1 2 3 4 5 6
20 3434 Rt. 22W ▪ Suite 140 Branchburg, NJ 08876 908.253.9080 ▪ fiber-span.com 18. FCC 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 1.5 meter distance and antennas having a gain greater than [15] dBi at 2.5 meters distance 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/RF technician for help.
21 3434 Rt. 22W ▪ Suite 140 Branchburg, NJ 08876 908.253.9080 ▪ fiber-span.com 19. Warranty 19.1. 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. 19.2. 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 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. 19.3. 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. 19.4. 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.
22 3434 Rt. 22W ▪ Suite 140 Branchburg, NJ 08876 908.253.9080 ▪ fiber-span.com 20. Company Information
A-1 3434 Rt. 22W ▪ Suite 140 Branchburg, NJ 08876 908.253.9080 ▪ fiber-span.com Appendix A FS31R-15C RRU Media Converter This section calls out the hardware needed and explains how to connect the media converter section of the Remote Repeater Unit (RRU) for approving its functionality. Hardware Needed 1. One media converter (for use as reference) including its power supply. 2. One SFP module. 3. Two 9/125 um single mode fibers SC/APC-to-LC/PC (1 meter length). 4. Three Ethernet cables (RJ45 connectors). 5. One PC or Laptop. How to connect: 1. Before applying power, connect all three Ethernet cables; a. Connect Cable 1 from PC to RRU USB port. b. Connect Cable 2 from reference media converter to Switch. c. Connect Cable 3 from Switch to Local Area Network (LAN). 2. Using two single mode fiber patch cable (~1 meter length), connect the fiber cable end to RRU optical out port and the other cable end to the media converter input. Connect the other fiber cable to the RRU optical in port and the other cable end connect it to the media converter output. 3. Always terminate RRU RF port with a 50 Ohm Load. 4. Apply power to the media converter and the RRU.
A-2 3434 Rt. 22W ▪ Suite 140 Branchburg, NJ 08876 908.253.9080 ▪ fiber-span.com Turn on the PC and open an internet browser. Using a search engine like Google, check on the internet for the today’s news. If you are able to do so, the media converter section is functioning properly. With this step the fiber medium has been proving to work at 0dBo, now replace both fiber cables with two 10 dBo single mode fiber patch cables and retest. Troubleshooting Tip The optical transceivers in-use has a high sensitivity margin that operates from 0 to 10 dBo optical loss this is not expected to be an issue. Upon encountering an issue, check that the fiber cables are not kinked or bend excessively. If issue continues, unplug every optical connector and Reference 180-0113 Media Converter FS31R-15C RRU (DUT) Dell Power Connect 16-Port Gigabit Ethernet ‘Switch’ or Equivalent 2- Single Mode Fiber Ethernet Cable >> Using PC open and access WEB Ethernet Cable Ethernet Cable LAN Figure 11: RRU Media Converter Test Setup Block Diagram
A-3 3434 Rt. 22W ▪ Suite 140 Branchburg, NJ 08876 908.253.9080 ▪ fiber-span.com re-clean tip with isopropyl alcohol until the internet is accessible. Another problem can be that the fiber cables are incorrectly crossover. The fiber path of the RRU transmitter side connects to the Receiver side on the reference media converter and the fiber path of the RRU receiver side connects to the transmitter side of the reference media converter.

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