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CNET-IN001A-EN-P

1. Delay 2 A Delay 4 A Delay 6 A 786 RPA 1786 RPEM S 1786 RPA a 1786 RPFM 786 RPA 1786 RPF a eo cH B cH2 Rx Delay 1 A ody 500m a Delay 7 A Delay 2 B Delay 4 B Delay 6 B 500m PLC 5C HO y CHA imi 1786 RPA 1786 RPFM 1786 RPA ACNR eae I JU ee Eee J B BHE m ai B BEE oo cH E cH2 BEE Ham HBBE y x CHA a S Delay 3 B CHB Delay 7 B 4 Delay 1 B 4 1000m 42309 1000m Publication CNET INO01A EN P April 2000 Plan a ControlNet Fiber Media System Calculate and Total Delays for Channel A Delay 1 Delay 2 Delay 3 Delay 4 Delay 5 Delay 6 Delay 7 500 meters x 4 17 ns meter Fiber repeater 901ns 153ns 3500 meters x 5 01 ns meter Fiber repeater 901ns 153ns 3500 meters x 5 01 ns meter Fiber repeater 901ns 153ns 500 meters x 4 17 ns meter TOTAL DELAY FOR CHANNEL A 3 23 2 1 ps 1 1 ps 17 5 ps 1 1 ps 17 5 ps 1 1 ps 2 1 ps 44 6 ps Calculate and Total the Delays for Channel B Delay 1 Delay 2 Delay 3 Delay
2. op to l a G o 9 O O a c O CHA 1786 RPA Ja sa 1786 RPFM 1786 RPA all 1786 RPFM nss CHB E H on cH E cH a om H cH2 E Wp Tx Rx fp Ix all EW oO f fa oO maj Publication CNET IN001A EN P April 2000 Plan a ControlNet Fiber Media System 3 7 Ring Topology PLC 5 e SIU In the ring topology the nodes are daisy chained together A fiber ring provides inherent redundancy If the ring is broken communications will travel in the opposite direction on the ring Figure 3 5 Ring Topology 0 1786 RPA O 1 a O am 786 RPA 1786 RPFRIX L_ i ior 42207 Publication CNET INO01A EN P April 2000 3 8 Plan a ControlNet Fiber Media System Incorrect Topology Shown below in Figure 3 6 is an example of an incorrect network Conti ti configuration using the 1786 RPA and 1786 RPFM Figure 3 6 illustrates ontigurations both channels o
3. H PLC5 i p e e 1786 RPA 1786 RPFM 1786 RPFS_ 1786 RPFM l 1786 RPCD __ 5 5 oo a a B B PERBU mm 5 1786 RPA a 1786 RPCD a a 7 r 1786 RPA a 1786 RPFM m oo a zl 1786 RPCD jel e o c Qo 1786 RPA a 1786 RPCD__ 1786 RPFM T ial g wm O o o s a 1786 RPFS 1786 RPCD n 1786 RPFM n si o p o c 1786 RPA asf 1786 RPFS gs m oo E Publication CNET IN001A EN P April 2000 The ControlNet Fiber Media System Quick Start 1 7 Figure 1 2 Ring Topology STEE RPA zeal 1786 RPFA XL oo g CHi O CH2 M I TH mannanananaatannd m
4. ra 1786 RPFRIXIL_ a O mm 1786 RPA 1786 RPFR X L oo CHI E CH2 Publication CNET INO01A EN P April 2000 1 8 The ControlNet Fiber Media System Quick Start Figure 1 3 Point to point Topology Cl PLC H x S short M medium RL loni RXL extra long 0 O ar O 1786 RPA all 1786 RPF mi m Ls CHI CH2 209 42208 2 Identify the ControlNet The ControlNet fiber media system is comprised of these components fiber media components fiber cable e nodes connectors repeater adapters fiber repeater modules power supply for repeater For information on purchasing these components see the Allen Bradley ControlNet Cable System Component List publication AG 2 2 Publication CNET INO01A EN P April 2000 The ControlNet Fiber Media System Quick Start 1 9 3 Plan the installation of Use your project plan and create checkli
5. F Other Comments Use back for more comments Your Name Location Phone Retem te Feehnical Communications Allen Bradley 1 Allen Bradley Drive Mayfield Hts OH 44124 6118Phone 440 646 3176 FAX 440 646 4320 Publication ICCG 5 21 August 1995 PN 955107 82 PLEASE FASTEN HERE DO NOT STAPLE Other Comments PLEASE FOLD HERE NO POSTAGE NECESSARY IF MAILED IN THE UNITED STATES BUSINESS REPLY MAIL FIRST CLASS MAIL PERMIT NO 18235 CLEVELAND OH POSTAGE WILL BE PAID BY THE ADDRESSEE Allen Bradley aA a DODGE 2 Rockwell Automation 1 ALLEN BRADLEY DR MAYFIELD HEIGHTS OH 44124 9705 PLEASE REMOVE Reach us now at www rockwellautomation com Wherever you need us Rockwell Automation brings together leading brands in industrial automation including Allen Bradley controls Reliance Electric power transmission products Dodge mechanical power transmission components and Rockwell Software Rockwell Automation s unique flexible approach to helping customers achieve a competitive advantage is supported by thousands of authorized partners distributors and system integrators around the world Allen Bradley PEAME DOGE Americas Headquarters 1201 South Second Street Milwaukee WI 53204 USA Tel 1 414 382 2000 Fax 1 414 382 4444 Heo Ro ckwell European Headquarters SA NV avenue Herrmann Debroux 46 1160 Brussels
6. XT terminator Coax segment 3 Y XT terminator x S short M medium Coax segment 1 4 Ong g RXL extra long PLO Hi T 42206 terminator CEH g Ma tis not necessary to install nodes on coax segments If you are only using the repeaters to extend then install a 75 Q terminator 1786 XT on the BNC coax connector on the fiber repeater adapter 1786 RPA This should be done to all repeaters that are not connected to coax segments Publication CNET IN001A EN P April 2000 Plan a ControlNet Fiber Media System 3 5 Star Topology All segments of the fiber network start from a central location The star topology usually requires an active hub or passive optical coupler Figure 3 3 Star Topology 1786 RPFM 1786 RPFS 1786 RPFM _ l 1786 RPCD oo oo o ol t o 1786 RPA z 1786 RPCD om o o
7. o CH1 H CH2 Ja RL lon RXL extra long 42206 gt 00 Ht CDc Fiber Optic Cable Fiber optic cables consist of three major parts the buffer and coating cladding and the core Refer to the figure below for a look inside the cable LLLI KLL CRY YS RI CROs A Yo AN S Cladding Ke st N N CLA N Coating G 7 Publication CNET IN001A EN P April 2000 2 8 Overview of the ControlNet Fiber Media System Publication CNET IN001A EN P April 2000 Fiber Cable Parts Description Buffer and Coating The buffer and coating are the material that surround the glass fiber They are responsible for protecting the fiber strands from physical damage Cladding The cladding is a material that provides internal reflection so that the light pulses can travel the length of the fiber without escaping from the fiber Core The core is the cylinder consisting of glass fiber which carries information in the form of light pulses Fiber Connectors Fiber cable connectors connect fiber cable to the fiber repeater module The medium distance fiber repeaters use an ST type connector and the short distance fiber repeaters use a
8. LED is flashing green off e No data activity on associated channel LED is solid green e Proper fiber connection between module pair LED is flashing green off e No data activity on associated channel 1 As of this print date the LED Indications for the 1786 RPFRL and 1786 RPFPXL are not available Publication CNET INO01A EN P April 2000 7 6 Verify Your Network Publication CNET IN001A EN P April 2000 Glossary APD Avalanche Photo Diodes converts light to current in fiber receivers Attenuation light loss of the fiber cable specified in dB km Bandwidth pulse broadening caused by multimode dispersion and chromatic dispersion within the cable Baseband information is transmitted through fiber by modulation of the optical power BER Bit Error Rate primary method of describing the data error rate An acceptable error rate is 1 x 10 bit errors or 1 error in 1000 Mbits transmitted Bend Radius the maximum amount the cable can be bent and still function up to specification Buffer the material surrounding the fiber core cladding coating that protects the fiber from physical damage Tight buffers are in direct contact with the fiber Loose tube buffers provide a free environment for the fiber to float Cladding layer of material surrounding the core of a fiber Coating protective plastic material surrounding the cladding Core central cylinder of a fiber that is made of plastic or g
9. coax segment The ControlNet Fiber Media System Quick Start 1 5 Table 1 B Network Terms Term coax repeater CR Means e a two port active physical layer component that reconstructs and retransmits all traffic it hears on one coax segment to another coax segment coax segment e trunk cable sections connected via taps with terminators at each end and with no repeaters fiber section e a length of fiber optic cable connecting two fiber repeater modules fiber repeater FR e consists of a fiber repeater module and a fiber adapter components that reconstruct and retransmit all traffic it hears on one fiber or coax segment side to another coax or fiber segment side node N e any physical device connecting to the ControlNet fiber or ControlNet media system which requires a network address in order to function on the network a link may contain a maximum of 99 nodes this address must be in the range of 1 99 and be unique to that link link e a collection of nodes with unique addresses in the range of 1 99 network e a collection of connected nodes e the connection paths between any pair of devices may include repeaters and bridges tap T e the connection between any device and the ControlNet media system tap terminator D e dummy load that terminates a tap drop cable that has yet to be connected to a node terminator m e a 75Q resistor mounted in a BNC plug trunk cable section e a len
10. 1786 RPA _ l 1786 RPFM a 1786 RPA _ 1786 RPFS _ 1786 RPCD al o oo fa B oe m T 7 CN 1786 0 a_ 1706 Fs e 1786 RPCD c t 1786 RPA na _ 1786 RPFM 786 RPA a 1786 RPFM g 1 1786 RPA oo 1786 RPFS o a a 1786 RPFS m oo H say m ao Node _ 1786 RPFM o a 42318 Publication CNET INQ01A EN P April 2000 2 6 Overview of the ControlNet Fiber Media System vu py Q MJ lt _ cn Figure 2 3 Ring Topology You can use a ring topology when you need an optical link between terminal units or bus segments The implementation is a redundant link with the 1786 RPFRL XL repeaters and ensures a high degree of relia
11. 1786 RPA on o t ff 1786 RPA 1786 RPFS 1786 RPCD oa oo Qo jel gs e z o 1786 RPA __ 1786 RPCD eS Pg jij j A peee E g t 1786 RPA sss 1786 RPFS 1786 RPCD seal 1786 RPFM a o a p T sa 1786 RPFM o z cc 1786 RPA 1786 RPFS oa oa ST SI oe ee bao 1786 RPA 1786 RPFS I 1786 RPA xa f 1786 RPFM n oo H Hanan oo H a B R W RY 42318 Node Node Publication CNET IN001A EN P April 2000 3 6 Plan a ControlNet Fiber Media System Redundant Topology Use a redundant topology when you need system backup A constraint of the redundant topology is that the fiber length on A and B must be within 650m Figure 3 4 Redundant Topology 1786 RPA o O mer D 1 1786 RPA all 786 RPFM 1786 RPA __ 1786 RPFM a mi P o CH2 lee 2 CH1 CH2 1786 RPFM
12. The ControlNet Fiber Media System Quick Start Overview of the ControlNet Fiber Media System Table of Contents Important User Information n s asau 2 European Communities EC Directive Compliance 3 EMC IDE CUI YS i as tai hn A u NS ha Neg la hie ea E Rk ER O Dae agg 3 Low Voltage Directive nnna naaa aa 3 About This Manuals saan oa eo E E E E I OE P 1 Related Publications n anaua aaa a P 2 Common Techniques 564 444 aaa P 3 Rockwell Automation Support nasasa asas 00005 P 3 Local Product SuppOltes lt a eee kee Fee Oe eS P 3 Technical Product Assistance 00000005 P 4 Your Questions or Comments about This Manual P 4 Chapter 1 What This Chapter Contains n aasa aaaea eaaa 1 1 Fiber Media Quick Start 4 335 2445 aaua 1 2 Why choose a Fiber Optic Media System 1 3 1 Analyze your network ood U4 aed ble oD a ey BE eS 1 4 Understand the ControlNet Fiber Media System 1 4 Determine your topology 0 00200005 1 5 2 Identify the ControlNet fiber media components 1 8 3 Plan the installation of the fiber media components 1 9 4 Install the fiber media system 0005 1 10 Fiber Connectors i eee ea te Gia iea ev ec ga ea 1 10 Fiber Repeater Hubs p ck ed a hee he ek a 1 11 Fibet Repeaters 21 t 4 3 4 3 9 2 8 he SN td bb eT ESS 1 11 5 Provide the data Tor RSNCIWOEX cate hoteles 1 12 6 Terminate your fiber cable 09 4 0 G44
13. Allen Bradley ControlNet Fiber Media Planning and Installation Guide 1786 Series User Manual i E T L r L L A l Automation Important User Information Because of the variety of uses for the products described in this publication those responsible for the application and use of this control equipment must satisfy themselves that all necessary steps have been taken to assure that each application and use meets all performance and safety requirements including any applicable laws regulations codes and standards The illustrations charts sample programs and layout examples shown in this guide are intended solely for purposes of example Since there are many variables and requirements associated with any particular installation Allen Bradley does not assume responsibility or liability to include intellectual property liability for actual use based upon the examples shown in this publication Allen Bradley publication SGI 1 1 Safety Guidelines for the Application Installation and Maintenance of Solid State Control available from your local Allen Bradley office describes some important differences between solid state equipment and electromechanical devices that should be taken into consideration when applying products such as those described in this publication Reproduction of the contents of this copyrighted publication in whole or part without written permission of Rockwell Automation is
14. If your segment requires 10 taps the maximum segment length is 1000m 3280ft 16 3m 53 4ft x 10 2 1000m 3280ft 130 4m 427 7ft 869 6m 2852 3ft The total trunk cable length or number of taps can be increased by installing repeaters on the segment This creates another segment The amount of high flex RG 6 cable 1786 RG6F you can use in a system is less than the amount of standard RG 6 cable so you should keep high flex cable use to a minimum Use BNC bullet connectors to isolate areas that require high flex RG 6 cable from areas that require standard RG 6 cable this allows the high flex RG 6 section to be replaced before flexture life is exceeded For more information in the installation of a coax segment see publication 1786 6 2 1 Planning and Installation Manual for a ControlNet coax cable system Publication CNET INQ01A EN P April 2000 3 10 Plan a ControlNet Fiber Media System Constraints of the Fiber Segment Select a Module Type Based on Distance Requirements Estimate Cable Lengths Publication CNET IN001A EN P April 2000 Every network that uses fiber repeaters must maintain a minimum signal attenuation level for each fiber segment in order to achieve an effective signal strength Attenuation of a fiber segment is effected by the quality of the termination at each connector splices bulkheads and the fiber cable At any time the total amount of attenuation shall not exceed the power bud
15. The total attenuation for a cable section must be less than 13 3dB Typically cable attenuation for a wavelength of 1300nm is less than 1 5dB km IMPORTANT Avoid jointing your cable as much as necessary Connectors can cause considerable attenuation and limit the maximum length of your system Be sure to check the attenuation of different cable sections after the cable is installed Each Allen Bradley fiber system has different constraints therefore determining maximum fiber optic cable lengths differs for each system Allen Bradley offers two different systems that are targeted to solve different applications Install a ControlNet Fiber Media System 5 7 200 Micron HSC Cable 62 5 Micron Cable Specifications for Fiber Optic Cable 1786 RPFS The 1786 RPFS system specializes in solving short distance applications we guarantee a distance of 0 300m This system requires the use of pre terminated cable assemblies such as the Versalink V System Refer to publication AG 2 2 ControlNet Media Component List for a complete list of cable assemblies 1786 RPFM The 1786 RPFM is designed to solve medium distance applications that require 3km 9843ft between two ControlNet products We guarantee up to 3km but you can achieve greater distances by increasing the quality of the fiber cable and termination connector media The medium distance module provides ground isolation between nodes and is not disrupted by the noise that aff
16. subjected to foot traffic or potentially crushing forces The following is a procedure for conduit or duct installation 1 Attach the towline to the cable using direct or indirect attachment as described in previous section 2 Establish two way communications between the cable payoff station intermediate hand assist stations and the pulling station 3 Use the following items for duct or cable tray replacements e adjustable lip clutch winch or equivalent e tension monitoring system with continuous readout e tow line that assures minimum friction e dedicated inner duct mainly for pulls in underground conduit e cable end caps for use in flooded or unknown conduits and sealing cable ends after placement 4 Position the cable reel and payoff frame for pulling a Mount the cable reel into the payoff apparatus so that the cable pays out on from the top of the reel b Attach the pulling grip to the cable and position the reel with its flanges perpendicular to the floor or support foundation c Secure the payoff frame so it cannot move during pulling 5 Maintain enough slack on the cable as the pull starts to prevent the cable from contacting any equipment in the area Miia Do not allow slack loops to form on the reel Slack loops could cause a crossover and damage the cable Always pull at slow speeds to limit the possibility of crossovers Plan your pull to avoid a pull equaling or exceeding the total bends to 36
17. such as the daughter cards The Unicam Kit will install the MT RJ connectors as well as the ST connectors This process is similar for the other Corning Cable Systems connectors designed for use with the Unicam kit There are currently no products available on the market that test the connector on the short distance fiber cable but there are many products available to test the connectors on the medium distance cable This section does not contain illustrations It is simply meant to provide an overview on how to assemble the fiber connectors The fiber termination process can be uncomplicated and reliable using the Corning Cable Systems kit Training patience and practice will enable you to terminate fiber cable as simply and quickly as coax Terminating coax can actually be more difficult and frustrating than fiber Terminate Your Network 6 3 The following sections are excerpts from the Corning Cable Systems kit instructions and provide the generic steps to terminate your fiber media by installing an MT RJ or ST connector IMPORTANT Be certain to follow the instructions that are provided by your fiber termination kit manufacturer 1 Organize your termination kit materials 2 Reference your plan to be certain that you have enough supplies to make the fiber connections and to terminate all used fiber cable ends 3 Make a schedule for preforming the connections 4 Follow the assembly and safety procedures for your terminati
18. verified and certified by a fiber optic specialist The maximum length of a section is dependent on the quality of the fiber number of splices and the number of connectors The total attenuation for a cable section must be less than 13 3dB 62 5 125 Micron Cable The 62 5 125 micron cable is graded index multimode fiber Use the cable with the 1786 RPFM RPFRL and RPFRXL modules You can apply it to medium distance applications that require greater distances than what coax cable can provide Publication CNET INQ01A EN P April 2000 3 12 Plan a ControlNet Fiber Media System Publication CNET IN001A EN P April 2000 The medium and long distance modules provide ground isolation between nodes and is not disrupted by the noise that affects traditional copper media IMPORTANT This system requires the use of a termination kit In order to master the steps to terminate the medium and long distance fiber cable training and practice are mandatory As with any network system we recommend a specialist to verify and certify your network before going online 1786 RPFRL Fiber Ring or Point to Point The 1786 RPFRL 0 10km is designed to solve long distance applications that require 10000m 32 810 ft between two ControlNet products The long distance module also provides ground isolation between nodes and is not disrupted by the noise that affects traditional copper media The termination of the long distance cable must be d
19. 4 2 H hazardous areas 1 2 1 11 2 9 Immunity to Interference 1 3 Install the fiber media 1 10 Installation 4 10 aerial 4 7 conduit and duct 4 5 direct attachment 4 5 direct burial 4 10 indirect attachment 4 5 open trench 4 11 pulled 4 5 Vertical 4 12 intrinsically safe area 1 2 1 3 isolate a segment 2 2 L LED Indications 7 5 link definition 1 5 2 2 Longer Distances 1 3 Loss Budget 3 13 Publication CNET INQ01A EN P April 2000 2 Index Loss Measurement incorrect 7 3 M maximum propagation 3 19 Maximum Propagation Delay 3 22 maximum system size 2 10 MT RJ 1 10 1 13 network verification 7 1 Network Terms 1 5 new segment 1 12 0 OTDR Measurement 7 4 P Parallel 2 10 2 12 poor connections 7 3 Power Loss Measurement 7 2 Power your network 1 14 project plan 1 9 publications P 2 AG2 2 1 3 1 8 R redundant networks 3 22 repeater 1 5 1 11 2 2 2 9 installed in parallel 2 12 installed in series 2 11 installed in series and parallel 2 13 repeater configurations installed in parallel 2 12 installed in series 2 11 installed in series and parallel 2 13 Repeater Requirements 2 9 Ring 1 7 Rockwell Automation support P 3 local product support P 3 questions or comments about manual P 4 technical product support P 4 RSNetWorx 1 12 1 15 2 11 2 13 3 24 7 1 Publication CNET INO01A EN P April 2000 S Safety general rules 4 2 segment 1 5 2 2 Corning Cable Systems ki
20. April 2000 Aerial Installation Most round tight buffer and loose tube optical cables are compatible with helical lashing clamping and tied mounting These cables can be used in aerial installations using methods similar to those for electrical cables The following procedure describes the stationary method for aerial cable installation Use 3 8 strands of cable to support aerially placed IMPORTANT IMPORTANT cable to limit the problems caused by differences in expansion and contraction of the support and strand cable 1 Use the following tools for aerial placement e adjustable lip clutch winch or equivalent e tension monitoring system with continuous readout tow line that assures minimum friction over cable blocks e a payoff apparatus equipped with a breaking system The breaking system can be used to place light tension on the cable during placement 2 Mount the cable reel into the payoff apparatus so that it pays out from the top Matilin bo not drag fiber optic cable across or around any obstacles that may cause outer jacket damage 3 Determine which direction to pull your cable pull the cable up grade whenever possible e place the payoff apparatus on an even surface and in line with the support strand whenever possible 4 Place cable blocks along the support strand at a distance of no greater than 50 feet 15 meters apart The first cable block should be placed as close to the initial pole
21. Pull in the first direction until the end point is reached b Remove the cable for the opposite direction from the reel by hand and carefully coil it on the ground in a figure 8 pattern MEg be certain to place the cable ina manner that will prevent the cable from binding against foliage rocks or other impediments c Hand guide the cable in the second direction as the pull begins 6 Begin cable placement as soon as possible after trenching You can avoid possible collapse and fill of your trench by filling it as soon as possible Depending on your application you may want to use a trencher with a mobile cable trailer and payoff Publication CNET INQ01A EN P April 2000 4 12 Guidelines for Fiber Optic Installation 7 Be certain that your cable trailer has properly sized rollers and an adjustable breaking system Do not allow fiber optic cable to be pinched IMPORTANT IMPORTANT braided or bent back during payoff from the cable trailer Do not exceed the cable s minimum bend radius and tension You may even want to guide your cable into the trench by hand 8 Backfill over the cable as soon as possible after cable placement Consult your local ordinances for guidance on backfilling and trenching procedures 9 Avoid backfilling with materials like frozen earth rocks and boulders construction debris etc These objects could create point discontinuity along the buried cable and harm the cable s performan
22. aO R HOA heh tad 3 7 Incorrect Topology Configurations 3 8 Constraints of the Coax Segment n aasaran 3 9 Coax Segment Constraint Example n aana aaau 3 9 Constraints of the Fiber Segment n a yao Ree ie eo 3 10 Select a Module Type Based on Distance Requirements 3 10 Estimate Cable Lengths so Vacs we a6 eee eR Cee meet wae SK 3 10 1780 RPFS cae Ae ce ethic ON on ssh eee toes lost oes 3 11 1786 RPEM oy cheats ea ait eee eho Mae aay ees Sore eo 3 11 1786 RPFRL Fiber Ring or Point to Point 3 12 1786 RPFRXL Fiber Ring or Point to Point 3 12 Determine Attenuation Levels 4 7 aiGadey an vate eo eee ie 3 13 Attenuation Levels for a Short Distance Fiber Segment 3 13 Attenuation Levels for a Medium Distance 1 ay ove papel std oy a ee eo ee ce ar 3 16 Determine Propagation Delay 000 3 19 Maximum Propagation Delay Through a Network 3 20 Maximum Propagation Delay Through a Redundant Network naaa bow oo Pk PER RELY BES 3 22 Network Parameter Requirements 4 3 24 What Snek erug esiet lei Ba ns AON Gahan hae tena Ea 3 24 Guidelines for Fiber Optic Installation Install a ControlNet Fiber Media System Table of Contents iii Chapter 4 What This Chapter Contains 0 00000 e eae 4 1 WW ABTS saa ta he hott ato ah Gah oe GR diab hf Real hd ave del hee 4 1 General Rules and Safety echt date vis Poe Sake 4 2 Hire Fib
23. between two repeater modules The system uses the following Two medium distance fiber repeater modules with a 13 3 db power loss budget Two fiber connectors on each fiber segment each having an attenuation of 0 5 db each Fiber cable having an attenuation of 1 0 db km 1300 nm MEATIA Be certain that you refer to the specifications that accompany the fiber cable that you purchase Plan a ControlNet Fiber Media System 3 17 so O o ooo AB ma m7 ma O aa Repeater Adapter Fiber Repeater Repeater Adapter Fiber Repeater TX RX TX LG 1 fiber terminator Each fiber terminator is 5 dB A 3 Bulkhead Splice 2 5 Fusion Splice 2 2 medium distance fiber segment 1000 km 75 dB 5 fiber terminator Each fiber terminator is 5 dB 4 medium distance fiber segment 3000 km 2 25 dB mail gt J eo J VA eee 42317 1 2 3 4 5 Total Attenuation O 7 5 5 2 25 5 4 50B Total Attenuation Total segment attenuation from connectors splices etc 2 x 0 5 db 1 0 db Maximum Cable Length km Power Budget Total attenuation of connectors splices bulkhead and etc Fiber cable attenuation in db km Maximum cable length km 13 3 db 1 0 db 1 0 db km 13 3 km 2x fiber connections Fiber Length Fiber Attenuation 1300nm 2 Fiber Connections Fiber Length Fiber Attenuation 1300nm lt 13 3db 2 5db 3 km 2 5dB 1 5db
24. km 5 5db lt 13 3db 4 connectors Bulkhead Fusion splice L1 km Attenuation km L2 km L1 L2 A 5 Ikm 1dB 5 5 2km 2dB 5 5dB lt 13 3dB Publication CNET INO01A EN P April 2000 3 18 Plan a ControlNet Fiber Media System IMPORTANT Due to possible fiber connector degradation it is recommended that an allowance of 1 0 db per medium distance fiber cable segment be added to the total attenuation Therefore in the above example the maximum cable length would be 12 3 km There is no minimum length of cable for the short or medium distance fiber repeater module IMPORTANT Publication CNET IN001A EN P April 2000 As of this printing date the attenuation calculations for the 1786 RPFRL RPFRXL are being developed They will be provided in the next revision of this manual and will accompany the modules Plan a ControlNet Fiber Media System 3 19 Determine Propagation Delay ControlNet has a specification called Maximum Propagation Delay This specification is the worst case signal delay between any two nodes on a network You need to figure out the worst case scenario based on distances and or the number of repeaters the signal has to travel The delay of a network would include the delays through coax and fiber media coax re
25. next After you review and have a general understanding of the ControlNet fiber media system go to Chapter 3 and begin to plan and design a ControlNet fiber media system for your specific network requirements Publication CNET INQ01A EN P April 2000 2 14 Overview of the ControlNet Fiber Media System Publication CNET IN001A EN P April 2000 Chapter 3 Plan a ControlNet Fiber Media System What This Chapter Contains Read this chapter to begin to plan your ControlNet fiber media system application The following table describes what this chapter contains and where to find specific information DevelopaPlan T UM Select a Topology 3 2 Determine the Constraints of Your Topology 3 3 Point to point Topology 3 4 Star Topology 3 5 Redundant Topology 3 6 Ring Topology 3 7 Incorrect Topology Configurations 3 8 Constraints of the Coax Segment 3 9 Constraints of the Fiber Segment 3 10 Select a Module Type Based on Distance Requirements 3 10 Estimate Cable Lengths 3 10 200 Micron HSC Cable 3 11 Determine Attenuation Levels 3 13 Determine Attenuation Levels 3 13 Determine Propagation Delay 3 19 Network Parameter Requirements 3 24 Develop a Plan Fiber optic links can be included in a ControINet system to increase network length and to obtain galvanic isolation in a highly noisy environment Its use is strongly recommended to avoid lightning problems when you place interconnect
26. prohibited Throughout this manual we use notes to make you aware of safety considerations Identifies information lt racti r ATTENTION de ifies information about practices o 7 circumstances that can lead to personal injury or death property damage or economic loss Attention statements help you to e identify a hazard e avoid a hazard e recognize the consequences IMPORTANT Identifies information that is critical for successful application and understanding of the product Allen Bradley is a trademark of Rockwell Automation European Communities EC If this product has the CE mark it is approved for installation within Directive Compliance the European Union and EEA regions It has been designed and tested to meet the following directives EMC Directive This product is tested to meet the Council Directive 89 336 EC Electromagnetic Compatibility EMC by applying the following standards in whole or in part documented in a technical construction file e EN 50081 2 EMC Generic Emission Standard Part 2 Industrial Environment EN 50082 2 EMC Generic Immunity Standard Part 2 Industrial Environment This product is intended for use in an industrial environment Low Voltage Directive This product is tested to meet Council Directive 73 23 EEC Low Voltage by applying the safety requirements of EN 61131 2 Programmable Controllers Part 2 Equipment Requirements and Tests For
27. sales support offices 512 authorized distributors and 260 authorized systems integrators located throughout the United States alone plus Rockwell Automation representatives in every major country in the world Support Local Product Support Contact your local Rockwell Automation representative for e sales and order support product technical training e warranty support e support service agreements Publication CNET INQ01A EN P April 2000 Preface 4 Publication CNET IN001A EN P April 2000 Technical Product Assistance If you need to contact Rockwell Automation for technical assistance first call your local Rockwell Automation representative then e Network Pre sales Hotline 440 646 3638 GNET e Fax Back system 440 646 5436 requires a touch tone telephone e Post sales Technical Support 440 646 5800 e Web Links _http Avww ab com as a registered member open to http www ab com mem technotes techmain html Your Questions or Comments about This Manual If you find a problem or have a comment about this manual please notify us of it on the enclosed Publication Problem Report at the back of this manual If you have any suggestions about how we can make this manual more useful to you please contact us at the following address Rockwell Automation Allen Bradley Company Inc Control and Information Group Technical Communication 1 Allen Bradley Drive Mayfield Heights OH 44124 6118 Preface
28. specific information required by EN 61131 2 see the appropriate sections in this publication as well as the Allen Bradley publication Industrial Automation Wiring and Grounding Guidelines For Noise Immunity publication 1770 4 1 This equipment is classified as open equipment and must be mounted in an enclosure during operation to provide safety protection About This Manual Preface This guide is not intended to be used as step by step instructions for cable installation Actual procedures may vary depending on cable style and installation environment We recommend that you consult cable designers for precise handling and installation details regarding your specific application s Please refer to the Glossary in the rear of the book for clarification of terms associated with fiber technologies The following table will help you find specific information in this manual Topic Chapter Quick Start to the ControlNet Fiber Media system 1 Complete overview of the ControlNet Fiber Media system 2 Plan your ControlNet Fiber Media system 3 Review general guidelines for fiber cable installation 4 Install a ControlNet Fiber Media system 5 Terminate your fiber cable 6 Verify your ControlNet Fiber Media system 7 Titi 2 order to successfully apply the concepts and techniques contained in this manual you must have a fundamental knowledge of electronics and electrical codes Publication CNET INO01A EN P April 2
29. system You will notice that some of the information in this chapter repeats in subsequent chapters Chapter 1 is simply a quick overview to the process you need to follow when you apply fiber media The following table describes what this chapter contains and where to find specific information Topic See page 1 Analyze your network 1 4 2 Identify the ControlNet fiber media components 1 8 Plan the installation of the fiber media components 1 9 Provide the data for RSNetworx 3 4 Install the fiber media system 5 6 Terminate your fiber cable 8 Test your fiber media connections and segments 0 2 2 7 Power your network 1 14 4 5 9 Verify your network Publication CNET INQ01A EN P April 2000 1 2 The ControlNet Fiber Media System Quick Start Fiber Media Quick Start Fiber media offers the following features e electrical isolation e immunity to interference e longer distances e decreased size and weight e entry into hazardous areas The following steps outline what you need to do to apply the ControlNet fiber media system 1 Analyze your network application If you are going to use fiber media in an intrinsically safe area consult with your local safety coordinator For hazardous locations refer to publication CNET IN003A US P The ControlNet EX Media Planning and Installation Manual because you need specific products designed for intrinsically safe l
30. 0 2 10 Overview of the ControlNet Fiber Media System Basic Network Example A network is the collection of segments with nodes connected together by fiber repeaters Figure 2 6 ControlNet Topology example coax segment coax al T Te al T T T T m N Y trunk cable trunk cable section N N section FR FR N N N FR network lt 4 fiber segment fiber segment FR al T T T Tm trunk cable section N N N D Publication CNET IN001A EN P April 2000 coax segment Configure Your Link With Repeaters When you configure your link using repeaters you can install them in one of three ways You can install repeaters in See series page 2 11 parallel page 2 12 a combination of series and parallel page 2 13 MEA repeater can be connected to a segment at any tap location ATTENTION The maximum system size is based on the distance between any two nodes The total amount of cable used in the network is only limited by the distance between the furthest two nodes Overview of the ControlNet Fiber Media System 2 11 Install Repeaters in Series When you install repeaters in series use your ControlNet Network management Software RSNetWorx to verify that th
31. 0 per pull If it is not possible to avoid a pull of 360 install an intermediate junction box within the 360 pull Plan on manually handling the cable along the pull route to help limit the bends Guidelines for Fiber Optic Installation 4 7 6 Position the winch at the pull station to avoid a steep angle either entering the duct or exiting the cable tray Titi Pe not exceed the maximum pulling tension for your fiber optic cable 7 Leave enough extra cable to route to the equipment rack put connectors on and allow for future repairs when your pull is complete 8 Cut off the pulling grip and the first 3 feet 1 meter of cable behind it 9 Terminate the cable 10 Measure and record optical cable loss using either an OTDR Optical Time Domain Reflectometer or an optical test 11 Seal the ends of the cable with endcaps until they are connected In some applications you may have to start your pull in the middle of a duct or conduit and pull in both directions In this scenario pull in the first direction using the reel and payoff frame In the other direction lay out the cable in a figure 8 pattern on the floor When the second pull begins hand feed the cable into the duct system MEATIA Be certain to clear the floor of dust debris and dirt before placing the cable in on the floor Publication CNET IN001A EN P April 2000 4 8 Guidelines for Fiber Optic Installation Publication CNET IN001A EN P
32. 000 Preface 2 Related Publications Publication CNET IN001A EN P April 2000 The following table contains numbers and names of publications related to this topic Catalog Number Publication Name Publication Number 1770 Industrial Automation Wiring and 1770 4 1 Grounding Guidelines Application Data 1786 ControlNet Cable Planning and 1786 6 2 1 Installation Guide 1786 ControlNet Cable System Planning and 1786 6 2 1 RN Installation Guide 1786 RPA ControlNet Modular Repeater Adapter 1786 5 13 Installation Instructions 1786 RPFS ControlNet Modular Repeater 1786 5 12 Short distance Fiber Module Installation Instructions 1786 RPFM ControlNet Modular Repeater 1786 5 11 Medium distance Fiber Module Installation Instructions 1786 RPFRL RPFRXL ControlNet Modular Repeater Long 1786 INOO3A EN P and Extra Long distance Fiber Ring Module Installation Instructions 1786 RPCD ControlNet Modular Repeater Dual 1786 INO01A US P Copper Module Various ControlNet Media Component List AG 2 2 1797 ControlNet Ex System Planning and 1797 6 2 1 Installation Guide Preface 3 Common Techniques The following conventions are used throughout this manual bulleted lists provide information not procedural steps e numbered lists provide sequential step TIP ae This symbol identifies helpful tips Rockwell Automation Rockwell Automation offers support services worldwide with over 75
33. 2 for a detailed overview of the fiber media system or go to Chapter 3 and plan your network Publication CNET INO01A EN P April 2000 1 16 The ControlNet Fiber Media System Quick Start Publication CNET IN001A EN P April 2000 What This Chapter Contains Understand the ControlNet Fiber Media System Chapter 2 Overview of the ControlNet Fiber Media System Read this chapter to familiarize yourself with the ControlNet fiber media system The following table describes what this chapter contains and where to find specific information ControlNet Fiber Media Components 2 3 The ControlNet fiber media system is comprised of these components 2 3 ControlNet Fiber Media Components 2 3 Determine Topology 2 5 The ControlNet fiber media system gives you the flexibility to design a communication network for your particular application To take full advantage of this flexibility you should spend sufficient time to plan the installation of your network before you assemble any of the hardware Fiber media applications mainly provide the ability to extend or isolate a segment of a network Fiber media holds many advantages over traditional copper media Since fiber optic media transmits digitized information via light pulses over glass or plastic fibers it avoids many of the problems common with copper applications The features and benefits of a fiber media system range from EMI immunity to decreased size and weight when c
34. 4 Delay 5 Delay 6 Delay 7 1000 meters x 4 17 ns meter Fiber repeater 901ns 153ns 3000 meters x 5 01 ns meter Fiber repeater 901ns 153ns 3000 meters x 5 01 ns meter Fiber repeater 901ns 153ns 1000 meters x 4 17 ns meter TOTAL DELAY FOR CHANNEL B Skew between channels Delay through A delay through B 44 6us 42s 2 6us 4 2ps 1 1ps 15 0ps 1 1ps 15 0ps 1 1ps 4 2ps 42ps If your calculations show that you are out of system budget you need to add a repeater You will be able to stretch your system budget by using high quality fiber media connectors and cable Publication CNET INQ01A EN P April 2000 3 24 Plan a ControlNet Fiber Media System Network Parameter Requirements What is next Publication CNET IN001A EN P April 2000 You can use RSNetWorx for ControlNet or other network configuration software to determine whether or not your system meets the network parameter requirements Based on your planned system requirements such as NUT SMAX UMAX and worst case network delay RSNetWorx will calculate your planned network parameters Once you have entered these values into RSNetWorx and the parameters are calculated the software will tell you whether or not if your configured network is acceptable as you have planned If you network is not valid you must adjust your planned requirements Refer to publication 9399 CNETGR Getting Results with RSNetWorx for Control
35. Belgium Tel 32 2 663 06 00 Fax 32 2 663 06 40 Asia Pacific Headquarters 27 F Citicorp Centre 18 Whitfield Road Causeway Bay Hong Kong Tel 852 2887 4788 Fax 852 2508 1846 Automation Publication CNET INQO1A EN P April 2000 PN 955138 59 2000 Rockwell International Corporation Printed in the U S A
36. Each Allen Bradley fiber system has different constraints therefore determining maximum fiber optic cable lengths differs for each system Allen Bradley offers two different systems that are targeted to solve different applications Plan a ControlNet Fiber Media System 3 11 1786 RPFS The 1786 RPFS 0 300m system specializes in solving short distance applications This system requires the use of pre terminated cable assemblies The total attenuation for a cable section must be less than 6 9dB Refer to publication AG 2 2 ControlNet Media Component List for a complete list of cable assemblies 200 Micron HSC Cable Use this type of cable with the 1786 RPFS module for short distance applications When you use plug n play systems you are required to use pre terminated cable assemblies The 200 hcs cable is also a step index multimode type of fiber cable TIP Refer to publication AG 2 2 ControlNet Media Component List for a complete list of cable assemblies 1786 RPFM The 1786 RPFM 0 3km is designed to solve medium distance applications that require 3000m 9843ft between two ControlNet products The medium distance module provides ground isolation between nodes and is not disrupted by the noise that affects traditional copper media The termination of the medium distance cable must be done in the field IMPORTANT If you have not been properly trained we recommend that the longer distance systems be specified installed
37. Ey O Fie CHi E CH2 ae ttt 7 wa Rx Tx R Tx Fiber segment 1 Coax segment 4 y Ege eei 7 Coax segment 2 Coax segment 1 E OO 42206 x 5 short M medium gt Ooms Ci jos RL long RXL extra long ControlNet Fiber The ControlNet fiber media system is comprised of these components Media Components e fiber cable nodes e connectors e repeater adapters e fiber repeater modules e power supply for repeater The following table lists the available cable connectors and repeaters for the ControlNet Fiber Media system You can also refer to publication AG 2 2 ControlNet Media Component List for more information on other ControlNet products and suppliers Publication CNET INQ01A EN P April 2000 2 4 Overview of the ControlNet Fiber Media System Table 2 B Fiber Media Products Product Catalog Number Description Repeaters repeater adapter 1786 RPA adapter portion of the repeater short distance fiber module 1786 RPFS fiber module used with the adapter for distances lt 300m medium distance fiber module 1786 RPFM fiber module used with the adapter for distances lt 3km long distance fiber module 1786 RPFRL fiber module used with the adapter for distances l
38. Net for information on how RSNetWorks can help you verify your network After you have sufficiently planned the installation of your fiber media you are ready to physically install the components Chapter 4 provides you with general guidelines for handling fiber media Chapter 5 instructs you on how to install wire modules and estimate cable lengths Chapter 4 Guidelines for Fiber Optic Installation What This Chapter Contains The following table describes what this chapter contains and where to Warnings find specific information Topic See page General Rules and Safety 4 2 Hire Fiber Optic Specialists for Installation and Certification 4 2 Install Local Equipment 4 2 Guidelines for Handling Fiber Optic Cable 4 3 Pulled Application Guidelines 4 5 Direct Attachment 4 5 Indirect Attachment 4 5 Conduit and Duct Installation 4 6 Aerial Installation 4 8 Direct Burial Installation 4 10 Open Trench Installation 4 11 Vertical Installation 4 13 of a cable with an active transmitter connected Do not look directly into the fiber ports Light levels may cause damage to your eyesight Do not view an active cable end through a fiber microscope Never use a microscope to view an active cable system The concentration of light from the microscope could cause permanent damage to your eye Publication CNET INO01A EN P April 2000 4 2 Guidelines for Fiber Optic Installation General Rul
39. Plan a ControlNet Fiber Media System 3 21 Figure 3 8 Calculate and Total the Delays Delay 4 Y Delay 1 Delay 2 Delay 3 Delay 4 Delay 5 Delay 6 Delay 7 Delay 8 Delay 9 Delay 6 y 786 RPFS TERM H2 20m 750 meters x 4 17 ns meter 3 1ps Fiber repeater 901ns 100ns 1 0ps 1000 meters x 4 17 ns meter 4 2ps Fiber repeater 901ns 153ns 1 1ps 3000 meters x 5 01 ns meter 15 03ps Fiber repeater 901ns 153ns 100ns 1 2ps 100 meters x 5 01 ns meter 0 5p1s Fiber repeater 901ns 100ns 1 0ps 20 meters x 5 01 ns meter 0 1p1s Total DELAY 27 1ps Publication CNET INQ01A EN P April 2000 3 22 Plan a ControlNet Fiber Media System Maximum Propagation Delay Through a Redundant Network For redundant networks not only do you have to calculate the worst case path delay between two nodes but also you have to calculate the worst case delay skew between channels A and channel B of the network The worst case skew between redundant paths IMPORTANT IMPORTANT shall be less than or equal to 6 4 ps The example below depicts a redundant network with the following e Two nodes separated by three fiber repeaters in series on both A and B Channels e Channel A uses 3500 meter segments on the fiber segments versus 3000 meter segments on Channel B Figure 3 9 Maximum Propagation Delay Through a Redundant Network
40. SNetworx your system meets the network parameter requirements Based on your system planned requirements NUT SMAX UMAX and worst case network delay RSNetWorx will calculate your planned network parameters Once the parameters are calculated the software will tell you whether or not if your configured network is acceptable as you have planned If you network is not valid you must adjust your planned requirements 6 Terminate your fiber Terminating is the process of adding a fiber connector to a fiber cable cable Fiber cable must have a connector on the end If a cable and j connector are not going to be used a dust cap should be placed on the unconnected terminated fiber cable end Publication CNET IN001A EN P April 2000 The ControlNet Fiber Media System Quick Start 1 13 Rockwell offers the short distance lt 0 300m fiber cable preterminated as a kit The medium long and extra long distance gt 300 m cable is the media that needs to be terminated in the field See page 2 6 for a list of cable sizes connector types and catalog numbers For a complete list of ControlNet media see publication AG 2 2 MT RJ is the latest connector technology that allows for more compact connector grouping that is possible with the current ST style connector The ST connector can be used with multi mode cable and is compatible with the Rockwell medium distance fiber module fiber ring module and repeater products The Corning Cable Syst
41. V pin type connector The short distance fiber connectors come factory terminated and it is as simple as plugging the connection into the repeater The termination process for medium distance connectors has become as easy as coax With the use of a precision termination kit and some practice you can make the fiber connections as easy as coax See Chapter 6 for more information Fiber Repeater Hubs ControlNet uses a modular fiber repeater system The repeater adapter 1786 RPA connects to the coax media and repeats signals from the coax media to the fiber repeater modules and is referred to as the adapter in this publication The fiber repeater module 1786 RPFS RPFM RPFRL RPFRXL sends the signal through the fiber cable to the next fiber repeater on the network and is referred to as the module here The combination of the adapter and the module is referred to as the fiber repeater The fiber repeater adapter 1786 RPA is referred to IMPORTANT IMPORTANT as the adapter throughout this document The fiber repeater module 1786 RPFS RPFM RPFRL RPFRXL is referred to as the modules in this document Overview of the ControlNet Fiber Media System 2 9 Fiber Repeaters The fiber repeater consists of a fiber repeater adapter 1786 RPA and 1 to 4 fiber repeater modules 1786 RPFS RPFM RPFRL RPFRXL Use a fiber repeater as a link from your non hazardous area to your hazardous area Hazardous areas require the use of specific
42. a has less loss than copper The less loss in fiber media means fewer repeaters than traditional media making fiber more effective for applications requiring long distance media connections Fiber s signal capacity is ideal for a deterministic control network Decreased Size and Weight Fiber media can carry more information than copper or coax and is smaller than traditional media Entry into Hazardous Areas Fiber media may provide a way to carry information into hazardous areas reducing the risk of injury For information on purchasing these components see the Allen Bradley ControlNet Cable System Component List publication AG 2 2 Publication CNET INQ01A EN P April 2000 1 4 The ControlNet Fiber Media System Quick Start 1 Analyze your network Take the time to analyze your current or new network application Use a project plan to design your network If you are adding fiber to an existing network create a design plan for the fiber segments of your network and identify the purpose for the fiber segments By creating a plan and analyzing your design you will be eliminating the potential for misapplication of media Use the example topologies to determine your network s topology When you understand your network s topology it will help you determine the media components you need to achieve your application requirements Understand the ControlNet Fiber Media System The ControlNet fiber media system gives yo
43. acement e Never allow tight loops knots kinks or tight bends in the cable e The cable should not be pulled around any bends smaller than 20 times the cable diameter when under load and 10 times the cable diameter at no load e Entrance in and out of metal pull boxes must be smooth as not to damage the cable sheath ATTENTION A surface The glass is very small and can penetrate your skin easily Teee Never look into a lasers output or the end output or the end ATTENTION of a cable with an active transmitter A Publication CNET IN001A EN P April 2000 connected Never use a microscope to view an active cable system The concentration of light from the microscope could cause permanent damage to your eye Do not leave any fiber pieces on your work Types of Fiber Media Installations Guidelines for Fiber Optic Installation 4 5 You can use fiber media in many different application types When you plan the application of fiber media keep in mind the following installation types Pulled Application Guidelines Pull fiber optic cable prior to connector installation since it becomes more difficult to protect fiber from stress after connectors have been mounted Connectors may be pre installed on one end leaving the other end for pulling Take precautions to protect ends from damage if the cable is pre terminated Refer to the manufacturers specifications for the fiber cable for additional informat
44. adius poorly polished connector Publication CNET INO01A EN P April 2000 7 4 Verify Your Network OTDR Measurement Publication CNET INO01A EN P April 2000 In addition to power loss measurement you should examine your total fiber network using an optical time domain reflectometer OTDR The OTDR emits light into a strand of fiber optic cable and displays the reflected light IMPORTANT Disconnect the fiber modules from the fiber cables before performing an OTDR test OTDR tests provide the following measurements that will help you troubleshoot and maintain your network total distance along the cable to a fiber break e distance to an event splice bend connector that attenuates the light e distance between two attenuating events e light attenuation between two points of the cable o total reflected light or light reflected from a single event Keep records of the traces for each cable strand on either hard copy or diskette The following figure shows an example of a connector panel with incoming multi fiber backbone cable and connectors for interconnect cables aa N SF aes 2 30690 M There are many choices of fiber optic cables designed for use in different environments Consult your applications designer or an installation professional to determine the best type of cable to use for your environmental conditions Verify Your Network 7 5 Troubleshoot the Fiber The fib
45. ally designed products Refer to the 1797 catalog series A fiber repeater is used to extend the total length of your segment or create a star configuration go off in multiple directions from one point The number of fiber repeater and cable length total is limited depending on your network topology You may also use fiber repeaters to cross into hazardous areas See CNET IN003A US P for more information on hazardous area applications The total number of repeaters fiber and coax length total is limited to 5 repeaters and 6 segments See CNET IN002A US P ControlNet Coax Media Planning and Installation Manual for more information on network distance limitations coax segment coax segment aT T Tm T T T T To WY trunk cablp trunk cable FR FR sacha N section N N N N N fiber segment maximum allowable segment length 1000m 3280ft 16 3m 53 4ft X number of taps 2 41327 When you insert a fiber repeater into your media system you create a new segment The same restrictions on the number of taps and cable length apply to this new segment Figure 2 5 Repeater Requirements 1000 3280 4 repeater required E 750 2460 2 500 1640 repeater S 250 820 F 30014m 2 16 32 48 number of taps Publication CNET IN001A EN P April 200
46. ance fiber module 1786 RPFS is designed for use with a 200 micron step index multi mode Hard Clad Silica fiber type with Connector Types a wavelength of 650nm and versalink connection system The medium distance fiber module 1786 RPFM is designed for use with 62 5 125um multi mode optic fiber and plastic or ceramic ST type connectors The wavelength used is 1300 nm Multi fiber cables for backbone use are available with a wide range of fiber counts between 2 and 216 fibers The following figure shows an Publication CNET INQ01A EN P April 2000 5 6 Install a ControlNet Fiber Media System Estimate Cable Lengths Publication CNET INO01A EN P April 2000 example of a multi fiber backbone cable and two fiber interconnect cable Simplex two fiber interconnect cables Zipcord multi fiber backbone cable 30689 M We recommend that you use the Corning Cable Systems Termination Kit with the unicam ST connectors The Corning Cable Systems Termination Kit has proven to be a simple and reliable method to terminate fiber cable See Chapter 6 Terminate Your Network for details The type of fiber cable you choose to use depends on the network environment Consult your installation professional to determine the best type of cable to use for your environmental conditions The maximum length of a fiber cable section for the 1786 RPFM is dependent on the quality of the fiber number of splices and the number of connectors
47. ar 5 7 602 5 Micron Calerie t edu nae ye Rite e bw tp nel Bees 5 7 Specifications for Fiber Optic Cables 4 404 G4 wae eo ges 5 7 1786 RPES Fiber Optic Cable ci nnna naaa pe sak eas 5 8 1786 RPFM Fiber Optic Cable 0 000 5 8 Whatis nexte siare Ae aN evoke ksi Mee aA 5 8 Publication CNET INO01A EN P April 2000 Table of Contents iv Terminate Your Network Verify Your Network Glossary Index Publication CNET IN001A EN P April 2000 Chapter 6 What This Chapter Contains 0 000000 5 What is termination 4 5 224 0 y wag shally BH Sas a8 artes fee OUR Term naton kimpan nprap e Hed ag OR ee OER Terminate Your Cable 4e0s 45 4 shane are Salons Sheers Assembly Instructions for Siecor UniCam Connectors COMPONe NS n e a e SE at Owe aha ee Sa Connector Preparation sn6 eon hoa 8 Soe OH POE U SSS Fiber Preparation naaa a ib 4k ee Ae EM Rte Connector Instalbtiony b ja 6433 Kaen ae od a4 What is GX lt A Dacia ny OFY Eek Oe Ones DONE E Chapter 7 What This Chapter Contains a cg u ease o 4 2g aon ceas Far tarde 4 Verify Your NETWORKS Aly fcc s Ss x cebu aca igh sate Aba AS abe ce ate OSG Power Loss Measurement 000000 cee eee OTDR Measurement rcr conre hura d Taraa Depa Troubleshoot the Fiber Module igo 2 aie hse dk Oe EY Chapter 1 The ControlNet Fiber Media System Quick Start What This Chapter Contains Read this chapter for a quick start to the ControlNet fiber media
48. as possible 5 Place additional cable blocks e one on each side of a corner e where distinct vertical clearances are required Guidelines for Fiber Optic Installation 4 9 6 Guide the cable to a position parallel with the strand as it approaches the payoff by securing the cable guide to a strand using a guy clamp on the strands behind the first roller e place the cable 2 feet 0 6 meters past the pole if the cable should start at a dead end pole e place the first cable block within 1 foot 0 3 meters if the pull starts midstrand between poles IMPORTANT Use manila rope 1 4 minimum kevlar rope capstan winch rope or coated line winch rope as a cable towline 7 Place a one sheave cable block or snatch block within 1 foot 0 3 meters of the pole at the end of the pull Make sure the winch is positioned to avoid steep angles exiting the block 8 Thread the towline through the all of the cable blocks and the cable guide to the end of the cable for aerial placement 9 Attach the towline to the cable using direct or indirect attachment as your application dictates See 4 5 10 Establish communications between the cable payoff station intermediate hand assist stations and the pulling station 11 Pull the cable slowly using the towline and winch meara Pe not exceed the maximum pulling tension as specified by the manufacturer of your cable 12 Reverse the payoff reel by hand to rework any excessive sag between gu
49. ate touch the termination kit we recommend the Siecor Termination Kit is easy to master In Chapter 6 we provide an overview of how to terminate the longer distance cable with one of these kits Siecor provides an excellent instruction manual with the kit and fiber optics training is available MEg be certain that you follow the manufacturers termination kit instructions The Siecor Termination Kit has shown through our testing to produce repeatable high quality connections The kits offers high quality tools and effective instructions on how to terminate the fiber cable Although fiber media is more delicate than coax we have found that once you terminate a few fiber connections it is as easy or easier than coax media Depending on your resources and individual network requirements you may find it necessary to consult with a fiber media specialist for network design application to determine what type of connectors necessary for your system and the physical installation It is a good idea to have a third party specialist review the network and certify the installation IMPORTANT The multi mode MT RJ connectors will be used on future Rockwell Automation products The ControlNet Fiber Media System Quick Start 1 11 Fiber Repeater Hubs ControlNet uses a modular fiber repeater system The repeater adapter 1786 RPA connects to the coax media and repeats signals from the coax media to the fiber repeater modules and is re
50. ater o Fiber Repeater o Repeater Adapter segment 1 eb segment 2 The path from Device 1 to 3 goes through 2 repeaters peas al The path from Device 2 to 3 goes through 2 repeaters Publication CNET INO01A EN P April 2000 Overview of the ControlNet Fiber Media System 2 13 Install the Repeaters in a Combination of Series and Parallel You can install repeaters in a combination of series and parallel connections following the guidelines listed in Chapter 3 When you create mixed topologies series and parallel you must verify the maximum number of repeaters and media by using your ControlNet Network Management Software RSNetWorx e If you configure your network using repeaters in combination of series and parallel you need to count the taps and repeaters in all segments e There can be only one path between any two nodes on a ControlNet link Multiple repeater connections between two segments are not allowed Figure 2 9 Repeaters in Series and Parallel seg
51. ber or coax segment side to another coax or fiber segment side node N e any physical device connecting to the ControlNet fiber or ControlNet media system which requires a network address in order to function on the network a link may contain a maximum of 99 nodes e this address must be in the range of 1 99 and be unique to that link link e a collection of nodes with unique addresses in the range of 1 99 network e a collection of connected nodes e the connection paths between any pair of devices may include repeaters and bridges tap T e the connection between any device and the ControlNet media system tap terminator D dummy load that terminates a tap drop cable that has yet to be connected to a node terminator R a 75Q resistor mounted in a BNC plug trunk cable section Publication CNET IN001A EN P April 2000 a length of a cable between any two taps Overview of the ControlNet Fiber Media System 2 3 Figure 2 1 Example topology Point to point O a O a O z ome O arr 7 1786 RPA 1786 RPF x 1786 RPA 1786 RPF x _ 1786 RPA _ I 1786 RPF x _ RPA 1786 RPF x _ oO
52. bility The failure of an optical cable between any two 1786 RPFRL XL repeaters does not affect the availability of the network The repeaters detect the failure of an optical link The port LED of the faulty link is deactivated and the failure is indicated by red illumination We recommend that you install the duplex optical cables of the two optical channels along different routes 0 a 1786 RPA 1786 RPFRIXIL_ o CH1 O CH2 Publication CNET IN001A EN P April 2000 T 786 RPA 1786 RPFRIX L___ CH1 mi CH2 O _ 1786 RPFR 42207 Overview of the ControlNet Fiber Media System 2 7 Point to point Topology Point to point is also called a bus A point to point is simply one fiber module transmitting to another like module For example you can not transmit from a medium distance module to a short distance Figure 2 4 Point to point Topology 6 _ e e _ e _ e 1 E O am 7 O am 786 RPA 175E RPFI 1786 RPA 1786 F0 Fw RA O ma O um O a 1786 RPF x 1786 RPA ___ l 1786 RPF x pa m CH1 H CH2
53. ce 10 Machine tap any areas where trenching could be threatened by erosion or washout 11 Measure and record optical cable loss using either an OTDR Optical Time Domain Reflectometer or an optical test 12 Seal the ends of the cable with endcaps until they are connected Publication CNET IN001A EN P April 2000 Guidelines for Fiber Optic Installation 4 13 Vertical Installation The requirements of your application may require a vertical installation You can install fiber optic cable vertically in trays shafts or towers Dielectric cables are recommended for applications requiring high vertical installations radio towers for example Plans for Vertical Cable Installation Use the following guidelines when planning a vertical cable installation 1 Clamp cable to give extra support in preventing ice loading and wind slapping Your specific environment will determine where you should clamp your cable Clamping intervals can be as short as 3 feet 1 meter and as long as 50 to 100 feet 15 30 meters in interior locations Cables in vertical cable shafts are generally clamped directly to the walls of the shaft Cables installed in elevator shafts are usually supported by suspension strands and suspended from the top of the shaft The suspension strand is attached to the wall at frequent intervals and at the bottom of the shaft Consult your local codes and practices for installation in an elevator shaft 2 Avoi
54. connector degradation it is IMPORTANT IMPORTANT recommended that an allowance of 0 5 db to 1 0 db per short distance fiber cable segment be added to the total attenuation Therefore in the above example the maximum cable length would be 20 to 70 meters 60 degrees C and 290 to 340 meters 25 degrees C There is no minimum length of cable for the short or medium distance fiber repeater module Total Attenuation Total attenuation from connectors splices bulkhead etc 2 x 1 5 db 3 0 db Maximum Cable Length km Power Budget Total attenuation of connectors splices bulkhead and etc Fiber cable attenuation in db km Max cable length 60 degrees C km 4 2 db 3 0 db 10 0 db km 120 meters Max cable length 25 degrees C km 6 9 db 3 0 db 10 0 db km 390 meters Publication CNET INQ01A EN P April 2000 3 16 Plan a ControlNet Fiber Media System Publication CNET IN001A EN P April 2000 Attenuation Levels for a Medium Distance Fiber Segment The power loss budget for the medium distance fiber repeater module 1786 RPFM is 13 3 db Therefore the maximum amount of attenuation between the two fiber repeater modules shall not exceed 13 3 db This power loss budget includes the entire bulkhead fusion splice This power loss budget is valid throughout the operating temperature range 0 to 60 degrees C of the 1786 RPFM Shown below is an example of determining the maximum fiber distance
55. crushing forces ground disruption from construction and rodents Use the following guidelines to help you plan your direct burial installation e Use cable specifically designed for direct burial e Use heavy duty armor cables buried directly into the ground e Bury the cable between 36 and 48 inches 1 to 1 2 meters deep e Use gel filling metal sheathing and armoring when possible e Use loose tube cable constructions where uneven pulling forces are a problem Guidelines for Fiber Optic Installation 4 11 Open Trench Installation Use the following steps as a guide for installing your fiber optic cable using an open trench method 1 Maintain minimum tension on the cable as it rolls over the guide rollers and through the guide shoot Maite bo not pull the cable in excess of its maximum allowable installation tension as specified in the cable manufacturer s specifications 2 Consider methods of placement like boring or creating a conduit when your installation intersects with objects like streets sidewalks or landscaping 3 Maintain at least a 36 inch 1 meter separation when your fiber optic cable is placed in proximity to an existing power cable 4 Use some form of mechanical protection steel pipe cement conduit etc when adequate earth cover cannot be maintained in your application 5 Use the following procedure if you must start cable placement in the middle of a selected trenching route a
56. d downward migration of cable in loose tube constructions by looping the cable approximately 1 foot 0 3 meters in diameter at the top bottom and every 500 feet 150 meters In loose tube constructions cable may migrate downward creating crowding at the bottom The crowding may cause an increase in attenuation especially in below freezing temperatures Publication CNET INQ01A EN P April 2000 4 14 Guidelines for Fiber Optic Installation 3 Plan cable runs that keep bends to a minimum 4 Drill all holes for the entire run larger enough to accommodate steel sleeves when passing cables through walls and floors The inside diameter of steel sleeves should be 4 times the diameter of the cable The minimum diameter of a steel sleeve is 2 inches 5 cm Steel sleeves are required to run cable through a firewall Consult your local codes and practices for installations through firewalls 5 Measure and record optical cable loss using either an OTDR Optical Time Domain Reflectometer or an optical test 6 Seal the ends of the cable with endcaps until they are connected What is next When you are confident that you can follow the fiber installation guidelines and have been trained to terminate fiber cable go to Chapter 5 to begin to install your fiber segments Publication CNET IN001A EN P April 2000 What This Chapter Contains Use pre terminated short distance fiber cable Chapter 5 Install a ControlNet Fiber Med
57. deals wee ia 1 12 7 Power your NetWOre ss isi aiae4 3 Ok pats CeO AY eed 1 14 8 Test your fiber media connections and segments 1 14 9 Verify your network o Beni he ado BU Bd Face Pw Ee 1 15 WHat IS NERS onan tee a tae amp oe O E 1 15 Chapter 2 What This Chapter Contains sia 40 05 8 ho hos 2S PePES O35 2 1 Understand the ControlNet Fiber Media System 2 1 ControlNet Fiber Media Components 2 3 Determine Topology o o aasa pe BERS Be 8 OE OES oes 2 5 Fiber Optie Cale sc dis als oe piep a piia agoi d a R oe gene 2 7 Fiber Connectors s G15 Secs yttsss andl bb ae allen be dead 9 r Seok he 2 8 Fiber Repeater Hubs siey wai dias nk dreser rune 2 8 Fiber Rep atets eatea pug Balin pap a othe Bead 2 9 Basic Network Example onana aaa 2 10 Configure Your Link With Repeaters 2 10 What IS GX unk ogee ape eg on T Oates 2 13 Publication CNET INO01A EN P April 2000 Table of Contents ii Plan a ControlNet Fiber Media System Publication CNET IN001A EN P April 2000 Chapter 3 What This Chapter Contains o a aaa aaaeeeaa 3 1 Develop a Plais drosto nuuraa eiae ea a G 3 1 Selecta LOPOlOC Ks eV auae E a ET EE E EOE ees 3 2 Determine the Constraints of Your Topology 3 3 Calculate Your Network o a aaau pend aa 3 3 Point to point Topology lt 4 o oo saasa 3 4 Star TOPOLOV no reen OF eta ee E A DAREA 3 5 Redundant Topology o a aaa aaaea 3 6 Rine Topology oee casa Pk e
58. dget 13 3 This includes all loss associated with the fiber link including splices fiber attenuation bulkhead connectors and the 1786 RPFM ST terminations Now that you have e identified what modules you are going to use e decided where you will install the modules in your network topology determined what quality of cable and connectors you will be using e calculated the attenuation levels for the distances and numbers of connections you are going to use you can now physically terminate the cable Go to Chapter 6 You may find that you will use the information in Chapters 3 5 and 6 in different sequences than what is in this manual For example you may have to go back to Chapter 3 and recalculate if you change the quality of the fiber cable What This Chapter Contains What is termination Chapter 6 Terminate Your Network Refer to the following table to find information on how to terminate the fiber cable Topic See page What is termination 6 1 Termination kits 6 2 Terminate Your Cable 6 2 Assembly Instructions for Corning Cable Systems 6 4 UniCam Connectors This chapter provides you with generic steps to terminate medium distance fiber cable Rockwell Automation offers pre terminated kits for the short distance module You simply plug n play the connections The medium distance cable must be terminated in the field We provide an overview as well as recommendation on how
59. e bare fibers Press down the cleaver arm until it just touches the fiber and guide This will apply enough pressure to properly score the fiber Gently release the cleaver arm Flex the fiber guide to break the fiber The fiber is now ready for insertion Press down on the cleaver s handle to once again lift the fiber clamp Remove the end piece of the fiber with tweezers and place it on a loop of tape for proper disposal Terminate Your Network 6 9 What is next Carefully insert the cleaved fiber into the lead in tube of the connector in the installation tool until you feel it firmly stop against the connector s fiber stub e Guide the fiber straight Do not bend or angle it e If you feel resistance at the entry funnel pull the fiber back out a short distance and re insert it IMPORTANT If you strip and cleave the fiber to the correct length 10 11 12 13 14 the end of the cable jacket or the buffer mark should stop within 2 mm 0 08 in of the lead in tube If this mark is not visible the fibers may have been broken Remove the connector re strip and relceave the fiber and begin with a ne connector Rotate the wrench past 90 to cam the connector an audible click from the tool is normal The wrench must stay down do not rotate it back upright The fiber is now held inside the connector by the splice You no longer need to hold it in place but be careful no
60. e system is an allowable configuration The system size is based on the maximum number of repeaters in a series and length of the media used between any two nodes Example Combination Point to point and Star topology e segments 1 and 4 each have 2 taps and each 1000 m 3280 ft e segments 2 and 3 each have 3 taps and each 983 7 m 3226 6 ft e the total length of this link 3967 4 m 13 013 2 ft e there are three repeaters in series A B Figure 2 7 Repeaters in Series Device 2 Device 1 The path from Device 1 to Device 4 goes through three repeaters JT segment 1 segment 2 cool Ao 1 a ico repeater A o p Repeater Adapter Fiber Repeater 1786 RPCD a Oo o mi CH1 O CH2 o alitti u i om O O am se Repeate
61. ects traditional copper media Use this cable with the 1786 RPFS module and specializes in solving short distance applications When using plug n play systems it requires the use of pre terminated cable assemblies Refer to publication AG 2 2 ControlNet Media Component List for a complete list of cable assemblies Use this cable with the 1786 RPFM and 1786 RPFRCX L modules and solves medium to long distance applications that require greater distances than what coax cable can provide The medium and long distance modules provide ground isolation between nodes and is not disrupted by the noise that affects traditional copper media The quality of the fiber cable determines the distance you can achieve Consult your local distributor for attenuation specifications prior to purchasing your fiber media components The table below provides specifications for fiber optic cable Publication CNET INQ01A EN P April 2000 5 8 Install a ControlNet Fiber Media System What is next Publication CNET IN001A EN P April 2000 1786 RPFS Fiber Optic Cable Item Description Fiber Type 200 230 micron HCS hard clad silica Fiber Termination Type Versalink V System Fiber Operating Wavelength 650 nm red Optical Power Budget 4 2 dB 1786 RPFM Fiber Optic Cable Item Description Fiber Type 62 5 125 micron Fiber Termination Type ST Plastic or ceramic Fiber Operating Wavelength 1300 nm Optical Power Bu
62. ems kit has shown to produce reliable and consistent high quality fiber connections termination You can also use this kit with the MT RJ connectors that we will use in our next generation products such as the daughter cards and Rockwell Automation Ethernet IP products IMPORTANT For best results use a high quality microscope design for use with fiber optics ATTENTION NEVER LOOK DIRECTLY INTO THE FIBER CABLE YOUR EYES WILL BE DAMAGED The Unicam Kit will install the MT RJ connectors as well as the ST connectors This process is similar for the other Corning Cable Systems connectors designed for use with the Unicam kit You can obtain information about ordering the various kits from your Distributor Publication CNET INO01A EN P April 2000 1 14 The ControlNet Fiber Media System Quick Start 7 Power your network 8 Test your fiber media connections and segments Publication CNET IN001A EN P April 2000 Terminate your cable IMPORTANT Be certain to follow the instructions that are provided by your fiber termination kit manufacturer 1 Organize your termination kit materials 2 Reference your plan to be certain that you have enough supplies to make the fiber connections and to terminate all used fiber cable ends 3 Follow the assembly procedures for your termination kit 4 Attach the end cap to the unused connector or attach the connector to a repeater module The power for your fiber modules co
63. er Optic Specialists for Installation and Cer ficdion gio tapi ein dict nts de vip os stots edt eed 4 2 Install Local Equipment s ise ee Medea ee 4 2 Guidelines for Handling Fiber Optic Cable 4 3 Types of Fiber Media Installations 4 5 Pulled Application Guidelines 4 5 Direct Attachment f a a exd oo ON eu eee BETS See 4 5 Indirect Attachment Sy aig Ses in knee ga Betedts aergs a wr death 4 5 Conduit and Duct Installation 4 6 Aerial Instalan ee renere tah KE PEE RK eS 4 8 Direct Burial Installation oc2 as 0 359 305 ohare week wold 4 10 Open Trench Installation 2 04 4 seve eos ate eres 4 11 Vertical Installation 2469 ci se 4u4 nde Ake woe 4 13 Plans for Vertical Cable Installation 4 13 What is next So tick ntl te Sed hie ie Sarwan tes Sede at BE 4 14 Chapter 5 What This Chapter Contains n te Soo 4 obese hoe ke 5 1 Use pre terminated short distance fiber cable 5 1 ControlNet Fiber Repeater Hubs 4 5 2 Installation Guidelines for Fiber Units 5 2 Wire the Fiber Module for Zipcord Operation 5 3 Identify Cable and Connector Types 5 5 Estimate Cable Lengths 204s lt a ue hi eh ath t hwo 5 08 bo 5 6 1786 RPES 23 0 5 ganio SY BOE Bh eR aby 8 ghee GK 5 6 1796 RPEM as fx A pew A ae ee 2 SO eR 5 6 200 Micron HSC CAD Cia fo guies asap 5a Gio a Rok amp a aol esa ey He do
64. er repeater has one LED for the coax connection and one for Module the accumulative indications of fiber channels Table 7 B LED Indications on the 1786 RPA If both are This indicates off e Unit not powered Check power line for correct voltage red e Faults caused by a jabber condition are automatically cleared when the condition is removed e Repeater fault Replace the repeater or troubleshoot the network If either is flashing This indicates green off Experiencing temporary network errors Situation normally corrects itself If it persists troubleshoot nodes and cable system Make sure all connector pins are properly sealed e all taps are connected properly e all coax terminators are 75Q and installed at both ends of all coax segments coax cable has not been inadvertently grounded Experiencing a high level of network errors Possibly a broken cable tap or missing segment terminator The indicators will flash red off on a system that has no network activity Red off is normal for a system that has no ControlNet nodes installed or enabled red off The status indicators are individually related to channel 1 or 2 Table 7 C LED Indications on 1786 RPFS or 1786 RPFM Status Indicates LED is off e Unit is not powered from the repeater adapter e Module is not properly seated to 1786 RPA e Faulty module order a replacement e Transmit and receive are backwards
65. es and Safety Publication CNET IN001A EN P April 2000 The following section outlines specific rules and guidelines to follow when you install fiber optic cable systems Hire Fiber Optic Specialists for Installation and Certification Many of our customers are qualified to plan and install their own fiber systems Rockwell Automation sells the necessary media to implement an application but we do not offer installation services If your company does not have qualified staff to install fiber media you will need to contract a specialist Fiber media installation is required to be certified so it is important to select a fiber optic installation specialist to assess what type of cable you need and to perform the installation for you Trained specialists have the expertise to select the correct type of fiber cable for your environmental and intrinsically safe area needs The specialist you choose should install your cable and terminate it following the supplier s installation instructions Installation should include complete documentation of cable routing and where every cable strand is connected If you are going to use the 1786 RPFS we offer pre terminated kits that allow you to easily install fiber media If you are going to use the 1786 RPFM RPFRL or the RPFXL it is mandatory that a trained specialist install and certify your application Install Local Equipment It is not necessary to have your fiber specialist connect your loca
66. f a 1786 RPFM module used for redundancy purposes which violates the rule that states that no more than one path exists between two nodes Figure 3 6 INCORRECT MULTI PATH PLC 5 Sen O az 1786 RPA O m A o 1786 RPA ssam 1786 RPFM sss 1786 RPFM INCORRECT CONFIGURATION Invalid topology because there are 2 fiber paths connecting the same coax segments Publication CNET IN001A EN P April 2000 Plan a ControlNet Fiber Media System 3 9 Constraints of the Coax Segment maximum allowable segment length 1000m 3280ft 16 3m 53 4ft X number of taps 2 The total allowable length of a segment containing standard RG 6 quad shield coaxial cable depends upon the number of taps in your segment There is no minimum trunk cable section length requirement The maximum allowable total length of a segment is 1 000m 3 280ft with two taps connected Each additional tap decreases the maximum length of the segment by 16 3m 53f The maximum number of taps allowed on a segment is 48 with a maximum length of 250m 820ft Figure 3 7 Maximum Segment Length 1000 3280 750 2460 4 500 1640 250 820 30014 m 48 segment length m ft 16 32 number of taps Coax Segment Constraint Example
67. ferred to as the adapter in this publication The fiber repeater modules 1786 RPFS RPFM RPFRL RPFRXL sends the signal through the fiber cable to the next fiber repeater on the network and is referred to as the module here The combination of the adapter and the module is referred to as the fiber repeater The fiber repeater adapter 1786 RPA is referred to IMPORTANT IMPORTANT as the adapter throughout this document The fiber repeater module 1786 RPFS RPFM RPFRL RPFRXL is referred to as the modules in this document Fiber Repeaters The fiber repeater consists of a fiber repeater adapter 1786 RPA and 1 to 4 fiber repeater modules 1786 RPFS RPFM RPFRL RPFRXL Extend the total length of your segment with a fiber repeater You can create a star configuration multiple directions from one point The number of fiber repeaters and cable length total limit depends on your network topology You can also use fiber repeaters to cross into hazardous areas ATTENTION You must use products specifically designed for hazardous areas You can use fiber repeaters that are design for hazardous areas as a link from your non hazardous area to your hazardous area Hazardous areas require the use of specifically designed products If you are going to use fiber in an intrinsically safe area consult with your local safety coordinator For hazardous locations consult publication CNET IN003A US P The ControlNet EX Media Pla
68. for Table 5 A Reference Publications Publication Publication Number ControlNet Modular Repeater Adapter Installation 1786 5 13 Instructions 1786 RPA ControlNet Modular Repeater Short distance Fiber 1786 5 12 Module Installation Instructions 1786 RPFS ControlNet Modular Repeater Medium distance Fiber 1786 5 13 Module Installation Instructions 1786 RPFM ControlNet Modular Repeater Long and Extra 1786 INOO3A EN P Long distance Fiber Ring Module Installation Instructions 1786 RPFL RPFXL A zipcord is a pre manufactured 650mm 200 230 micron cable with a versalink V pin connection at the ends The zipcord is a duplex cable Zipcord Operation A duplex cable is manufactured with the fiber reversed on opposite ends This automatically connects Transmit from one unit to Receive of the other Figure 5 1 Zipcord Connection Example O m arri mm O mm 1786 RPA 1786 RPFS 1786 RPA _ _ 1786 RPFS CH1 CH2 CH1 CH2 MALAE nA 69 brs abbr ad bb bos Ao T 11 OR 42316 PFP The 1786 RPFM is not a redundant module therefore never connect more than one duplex fiber or two simplex fibers between the same modular repeaters even if they are from different modules on the same hub See Figure 5 2 on page 5 4 for an incorrect example of a redundant topology ATTENTION Do not look directly into the fiber ports Lig
69. ge Verify Your Network 7 1 Power Loss Measurement 7 2 OTDR Measurement 7 4 Troubleshoot the Fiber Module 7 5 Verify Your Network You can use RSNetWorx for ControlNet or other network configuration software to determine whether or not your system meets the network parameter requirements Based on your planned system requirements such as NUT SMAX UMAX and worst case network delay RSNetWorx will calculate your planned network parameters Once you have entered these values into RSNetWorx and the parameters are calculated the software will tell you whether or not if your configured network is acceptable as you have planned If you network is not valid you must adjust your planned requirements Refer to publication 9399 CNETGR Getting Results with RSNetWorx for ControlNet for information on how RSNetWorks can help you verify your network Publication CNET IN001A EN P April 2000 7 2 Verify Your Network Power Loss Measurement power meter After you install medium or long distance fiber cable check your sections using an optical power meter to verify that your attenuation is less than 13 3dB The power source you choose to test with must match the power source rating of the cable you are testing The power loss measurement should match the tables in the previous chapters if you do not follow the power loss recommendations in the previous chapters then you can assume that you will have high loss cable and high loss connecti
70. get of the type repeater module used The attenuation values for connectors splices IMPORTANT IMPORTANT bulkheads and cable are available in the manufacturer s specifications for your products The most common question we hear is Can I use a particular cable with a particular module There are two types of cable single and multi mode If your distance requirements is less than 300m we offer short distance cable that comes pre terminated for use with our 1786 RPFS repeater You simply plug and play the connector into the module If your distance requirements are greater than 300m you must use a medium or long distance module and terminate the cables in the field For short distance modules the segments are limited to a maximum of 300m If your distance requirements are greater than 300m you need to use a medium or long distance module The maximum length of a fiber cable section for the 1786 RPFM is dependent on the quality of the fiber number of splices and the number of connectors The total attenuation for a medium distance cable section must be less than 13 3dB Typically cable attenuation for a wavelength of 1300nm is less than 1 5dB km and connection losses are 1dB per connection IMPORTANT Avoid jointing your cable Connectors can cause considerable attenuation and limit the maximum length of your system Be sure to check the attenuation of different cable sections after the cable is installed
71. gth of a cable between any two taps jese e network continues other nodes not shown Determine Your Topology The main purpose of fiber media is either to extend a segment or to isolate a segment of your network You can use the fiber repeater system whether it be fiber or a hybrid of fiber and copper to isolate suspect segments of your network to avoid failures to your entire network Troubleshooting becomes easier when you apply isolated segment topologies especially to problem prone areas such as a segment that has high flexing For example a major car manufacturer used fiber media to isolate segments of their network that contained a turntable with a slip ring Since the hardware went through the repeater a failure of the turntable would not take down the entire network The first step to using fiber media is to analyze your application and determine the topology of your current or new network application Then you need to decide which topology you need to use The following figures illustrate the variety of topologies possible when you apply the ControlNet Fiber Media System See Chapter 2 and 3 for Publication CNET IN001A EN P April 2000 1 6 The ControlNet Fiber Media System Quick Start additional illustrations and detailed information including incorrect examples of fiber topologies Figure 1 1 Star Topology
72. ht levels may cause damage to eyesight Publication CNET IN001A EN P April 2000 5 4 Install a ControlNet Fiber Media System Miiiwelne Never make a fiber or copper connection between modules that are connected to the same adapter Figure 5 2 Incorrect Configuration Example Allen Bradley ney 1786 RPA Witen Bradley ai O am O 1786 RPFS_ 1786 RPA _ 1786 RPFS Fiber segment 1 42314 Fiber segment 2 INCORRECT CONFIGURATION Channel 1 to Channel1 OK Channel 1 to Channel2 OK Channel 2 to Channel 2 NOT OK IMPORTANT Never connect the fiber cable between channel 1 or channel 2 on the same repeater module even between channels from different modules on the same repeater Refer to the figure below Publication CNET IN001A EN P April 2000 Install a ControlNet Fiber Media System 5 5 Figure 5 3 Correct Connection Example Alle Bra Bradley Fie m O aa am 1786 RPA _ 1786 RPFS 1786 RPA 1786 RPFS Wen Bradley CH1 CH2 CH1 CH2 ete ol lc sl II Correct Configuration 42313 Be certain that the fiber connected to Rx receive on IMPORTANT one 1786 RPFM is connected to Tx transmit on the other 1786 RPFM You can use channel 1 or channel 2 on either card Identify Cable and The short dist
73. ia System This chapter provides you with generic steps to connect short and medium distance fiber cable The following table describes what this chapter contains and where to find specific information Topic See page Use pre terminated short distance fiber cable 5 1 ControlNet Fiber Repeater Hubs 5 2 Wire the Fiber Module for Zipcord Operation 5 3 Identify Cable and Connector Types 5 5 Estimate Cable Lengths 5 6 200 Micron HSC Cable 5 7 62 5 Micron Cable 5 7 Specifications for Fiber Optic Cable 5 7 We offer simplex or zipcord cable You can use multi mode fiber cable with our modules but at this time we do not sell this cable You need to check with your distributor to get the information and equipment needed For information regarding other fiber products not covered in this manual consult your local fiber media distributor Publication CNET INQ01A EN P April 2000 5 2 Install a ControlNet Fiber Media System ControlNet Fiber Repeater Hubs Publication CNET IN001A EN P April 2000 ControlNet uses a modular fiber repeater system The repeater adapter 1786 RPA connects to the coax media and repeats signals from the coax media to the fiber repeater module and is referred to as the adapter in this publication The fiber repeater module 1786 RPFS or 1786 RPFM and RPFRCX L sends the signal through the fiber cable to the next fiber repeater on the network and is referred to as the module here The comb
74. ice kit 1403 N11 slice tool simplex pull bullet 1403 N12 adapter For more information on the planning and installation of intrinsically safe fiber repeaters reference publication 1797 6 2 1 ControlNet EX Media Planning and Installation Manual 2 Maximum fiber distance is dependent on the signal attenuation of the fiber segment and the quality of the fiber cable and connectors Publication CNET IN001A EN P April 2000 Overview of the ControlNet Fiber Media System 2 5 Determine Topology The main purpose of fiber media is either to extend a segment or to isolate a segment of your network The first step to using fiber media is to analyze your application and determine the typology of your current or new network application Then you need to decide which topology you need to use The following figures illustrate the variety of topologies available when you apply the ControlNet Fiber Media System See Chapter 3 for larger illustrations and detailed information Figure 2 2 Star Topology c c t 1786 RPA _ l 1786 RPFM 1786 RPFS f 1786 RPFM 1786 RPCD o ia mgn Wh T oo o oo H oo 1786 RPCD ol
75. ideblocks after the pull is completed and the pulling end is anchored Use the payoff break to maintain the proper tension 13 Measure and record optical cable loss using either an OTDR Optical Time Domain Reflectometer or an optical test 14 Tighten the strand suspension clamps at the poles where the cable is to be lashed 15 Lashing should begin immediately after the cable has been placed Publication CNET IN001A EN P April 2000 4 10 Guidelines for Fiber Optic Installation Publication CNET IN001A EN P April 2000 16 17 18 19 20 21 Pull the lasher towards the cable reel Always take up the slack of the unlashed spans by reversing the payoff reel slowly by hand Remove the cable blocks as the lasher progresses towards the payoff reel Secure the strand wire to keep it from loosening on the previously lashed span as the lasher is transferred from strand to strand Proceed with the lasher until each lash is complete Leave enough extra cable to route to the equipment rack put connectors on and allow for future repairs when your pull is complete Seal the ends of the cable with endcaps until they are connected Direct Burial Installation Some applications call for a direct burial installation Direct burial installation requires some special considerations that aren t necessary for other pulled applications These guidelines are designed to prevent hazards such as freezing water
76. in that it is in the open position The ST compatible connector is in the open position when the key on the cam is positioned 900 from the rounded side of the dust cap with the label UP The connectors will not fit into the installation tool with the wrench handle up unless the cam is in its open position 4 Pull back the slider and insert the connector UP label up into the tool as far as it will go The lead in tube should rest on the crimp platform when the connector is fully seated The front of the connector should rest in the slider Tihietie A gentle push should be adequate to insert the connector If you attempt to force the connector into the tool you can damage the tool Publication CNET IN001A EN P April 2000 Terminate Your Network 6 7 If the connector does not slide into the tool when gently pushed be certain that the connector is in the open position the wrench handle is up and you are inserting the connector with its proper side up Fiber Preparation 10 Slide the boot small end first down the fiber until it is out of the way Measure and mark 40mm 1 5in from the end of the buffered fiber Strip off the 40mm section of the outer jacket with the 16 AWG opening of the buffer stripping tool Use the scissors to trim the aramid yarn flush to the end of the outer jacket Measure and mark 11 mm 0 43 in from the end of the outer jacket Strip off the 11 m
77. ination of the adapter and the module is referred to as the fiber repeater hub The fiber repeater adapter 1786 RPA is referred to IMPORTANT IMPORTANT as the adapter throughout this document The fiber repeater module 1786 RPFS RPFM RPFRCX L is referred to as the module in this document Up to 4 repeater modules can be mounted on the DIN rail and plugged together with one repeater adapter Short distance modules 1786 RPFS medium distance modules 1786 RPFM and fiber ring modules 1786 RPFRCX L may be mixed and matched in any combination to a single RPA Installation Guidelines for Fiber Units Follow these guidelines when you plan and install your fiber units observe the environmental specifications for the fiber units as outlined in each installation instruction e avoid electrostatic and electromagnetic fields at installation sites e avoid corrosive and inflammable gases dust conductive particles oil mist and organic solutions when choosing an installation site prevent exposure to water or direct sunlight e mount the units in a NEMA type enclosure e allow a minimum of 5 cm space from surrounding equipment for proper ventilation e vertical mounting of the modules is OK but to maintain proper ventilation do not mount the modules upside down Refer to the following publications for repeater and module installation instructions Install a ControlNet Fiber Media System 5 3 Wire the Fiber Module
78. ing equipment in different buildings Point to point and star configurations can be created by use of standard fiber cable The fiber repeater adapter must be connected to a coax trunk cable by means of the standard tap Up to four fiber modules with two fiber ports each can be directly plugged to a Repeater Adapter Each port needs two fiber connections one for receive and another for transmitting signals The basic configuration Publication CNET INO01A EN P April 2000 3 2 Plana ControlNet Fiber Media System connects two coax segments point to point by means of two fiber repeater adapters and two fiber modules as illustrated below Figure 3 1 Basic Fiber Media Topology tap coax segment 1 fiber repeater adapter fiber repeater 1736 88 i lt lt module CN fiber repeater i adapter p 1786 RPA 1786 RPFM le fiber repeater module lt q fiber segment coax segment 2 30688 M This configuration is equivalent to the use of a coax repeater Fiber cable can provide communications over longer distances than with coax media Selecta Topology The topologies that you can select are Point to point or bus e Star Redundant e Ring Publication CNET IN001A EN P April 2000 Plan a ControlNet Fiber Media System 3 3 Determine the Constraints Listed below a
79. ining place and terminate fiber cable This would include training on hand held tools tension meters optical power meters cleaners and adhesives Installation e Observe all local regulations for installation including regulations personal safety equipment and the guidelines for its use Publication CNET INQ01A EN P April 2000 4 4 Guidelines for Fiber Optic Installation Table 4 A Guidelines for Handling Fiber optic Cable Guideline Description Proper disposal e Always dispose of fiber waste Disposing of fiber waste prevents the contamination of clothes fingers or eyes of glass fragments Do not leave pieces of fiber cable on your work surfaces Specifications e Review cable specifications for distances and required connectors e Review all cable parameters and specifications before installation Make sure that you have the proper amount of connectors and installation equipment Never attempt to use non compatible connectors and installation tools Pulling tensions e Observe the maximum pulling tensions Do not pull directly on fiber or force cable into a bend radius less than the maximum allowable This will crack the glass and result in optic loss e The cable should never be pulled at a force greater than the maximum allowable pulling tension Excessive loads from bending or pulling may cause fiber damage Use a running line tension meter to determine the pulling tension applied during cable pl
80. ion Cables should be lubricated prior to pulling to minimize the pulling forces on the cables Lubricants such as waxes greases clay slurries and water based gels are compatible with most fiber optic jacket materials It is necessary to identify the strength member and the optical fiber location within the cable Afterwards a decision should be made to choose a cable pull method pull or indirect attachment to ensure effective pulling without fiber damage Never pull the cable by the fiber strand Direct Attachment The cable strength member is attached directly to a pulling eye Since epoxy glass central strength members are too rigid to tie they may be secured to the eye using tight clamping plates or screws Indirect Attachment Indirect attachment uses a pulling grip attached to the cable s outer jacket to distribute the pulling force over the outer portion of the cable The pulling grip produces the least amount of stress in cables where the strength member lies directly beneath the jacket Publication CNET INQ01A EN P April 2000 4 6 Guidelines for Fiber Optic Installation Publication CNET IN001A EN P April 2000 Conduit and Duct Installation Installation procedures for conduit and duct installation of fiber optic cables are very similar to those of electrical wires Avoid yanking flipping or wrapping cables causing unnecessary tightening Fiber cable electrical wires small fiber optic cables should never be
81. l equipment Someone with media installation experience can connect local equipment using pre terminated interconnect cables purchased in their required lengths Guidelines for Fiber Optic Installation 4 3 Guidelines for Handling Fiber Optic Cable We encourage you to observe all of the guidelines listed below to be successful when you handle fiber optic cables These guidelines are designed to protect the safety of everyone who handles uses or works near fiber optic systems Also the guidelines help establish an environment that will allow you to get the greatest performance from your fiber optic system ATTENTION Do not look directly into the fiber ports Light levels may cause damage to your eyesight Do not view an active cable end through a fiber microscope Table 4 A Guidelines for Handling Fiber optic Cable Guideline Description Minimum bend e Observe the minimum fiber cable bend radius radius specified Skin Contact e Do not touch the ends of the fiber optic strands The fiber can break easily and pierce your skin Contamination e Do not let the ends of a fiber optic strand come into contact with dust dirt or other contaminants e Clean contaminated ends with a soft clean lintless cloth and alcohol Protective caps e Always attach protective caps onto fiber cable connectors and fiber ports when they are disconnected Installation e Train personnel on usage of the installation tools to tra
82. lass Publication CNET INQ01A EN P April 2000 Glossary 2 Publication CNET IN001A EN P April 2000 dB unit of measure for loss or gain of power described as 10 x log Pout Pin dBM power level referenced to 1 mw described as 10 x log Poptical Imw Graded Index fiber system where light travels in wave like tracks to increase cable bandwidth Insertion Loss loss in dB caused by the disruption of light when an object is inserted in the light path a connector bulkhead splice or cable Laser Diode converts electric energy into light energy to be coupled onto fiber media LED Light Emitting Diode converts electric energy into light producing low energy wavelengths onto fiber media Local Area Network family of computer networks industrial control networks and office networks used in short distance multi user environments Loss see Attenuation Multimode class of fibers where the light travels in multiple paths down the fiber core Numerical Aperture NA in a lens or fiber the sine of half the maximum angle of acceptance a NA sin V n1 n25 where n1 core refractive index and n2 cladding refractive index Glossary 3 Network Update Time NUT the time necessary to complete the scheduled bandwidth unscheduled bandwidth and network maintenance in the network interval OTDR Optical Time Domain Reflectometer tool for characterizing fiber attenuation uniformity splice loss breaks
83. le lengths Select Fiber cable and identify Loss x Loss km Step 4 Compare Losses Compare losses in Steps 2 amp 3 with Total Loss Budget in Step 1 e If Steps 2 amp 3 are equal to or less than Step 1 then you are within your loss budget e If Steps 2 amp 3 are greater than Step 1 then you will need to reconfigure topology shorten cable lengths or reduce the number of connectors and calculate the loss budget again Qo ___ O Allen Bradley Allen Bradley Alen Bradiey Allen Bradley Repeater Adapter Fiber Repeater Repeater Adapter Fiber Repeater 1 fiber terminator Each fiber terminator is 1 5 dB 3 fiber terminator Each fiber terminator is 1 5 dB 2 short distance fiber segment 300m 3 dB J e e lg 42317 1 2 3 Total Attenuation 1 5 3 1 5 6 dB maximum cable Length km Power Budget Total attenuation of connectors splices bulkhead and etc Fiber cable attenuation in db km Publication CNET INO01A EN P April 2000 Plan a ControlNet Fiber Media System 3 15 For another topology that uses the following e Two short distance fiber repeater modules with a 4 2 db power budget at 60 degrees C and 6 9 db at 25 degrees C each e 2 cable connections on each fiber segment having an attenuation of 1 5 db each e Fiber cable having an attenuation of 10 0 db km 650 nm Due to possible fiber
84. m section of the outer jacket You should have 11 m of aramid yard showing Fold the aramid yarn back over the cable jacket and slide the crimp ring about 5 mm 0 2 in down the yarn to hold it out of the way Measure and mark the 900 um buffer coating 10 mm 0 43 in from the end of the cable jacket Place an additional mark on the buffer at the edge of the jacket This mark is a visual aid to indicate when the field fiber contacts the fiber stub Remove approximately 41 mm 1 6 in of coating to the first mark with the 203 um No Nik tool Clean the bare fiber with two passes of an alcohol wipe Do not touch the bare fiber after cleaning it Do not remove the 10 mm mark Publication CNET INQ01A EN P April 2000 6 8 Terminate Your Network Publication CNET IN001A EN P April 2000 Connector Installation Press down on the handle to open the cleaver s fiber clamp With your other hand place the fiber in the cleaver s fiber guide so that the end of the fiber is under the fiber clamp and the end of the fiber coating lines up with the 8 5 mm length marking IMPORTANT DO NOT FLEX THE FIBER GUIDE AT THIS TIME It is critical that the cleaver blade lightly touch the fiber and then be released before the bending motion of the guide is used to break the fiber Bending the guide while the blade is in contact with the fiber will result in poor cleaves 3 Gently release the handle to lower the clamp into th
85. ment 3 repeater D y i g repeater E Repeater Adapter Fiber Repeater _ 1786 RPCD repeater F z B Repeater Adapter Fiber Repeater _ 1786 RPCD __ oo CHi E cH2 cH och pepeater Adapter Fiber Repeater _ 1 7a6 RPCD oo Jon E cHo cm S cre i a I 7 ap CH1 O CH2 CH1 D CH2 ll Il F 4 Device 1 il 3 li m Device 3 Device 2 Eo segment 2 segment 6 repeater A eae repeater C z z AA a Fiber Repeater fl 1786 RPCD repeater Adapter_ Fier Repeater 17a6 RPCO nla im O ses a Ls o ial J oo cu EB che cho che Leg om H CH2 CHI m CH2 em e CH E ckz cut o cHe sim I EI i iil 7D iTi Ey Device 4 a a eho al a Device 5 segment 4 4 A ae evice segment 5 S segment 7 42308 The path from Device 1 to Device 6 goes through repeaters What is
86. mes from the repeater adapters 1 Connect to the ControlNet network by attaching the fiber modules to the DIN rail Refer to the instructions provided with the fiber modules for installation instructions 2 Connect the fiber modules to a repeater adapter 3 Connect the repeater adapter to a 24V dc power supply Refer to the instructions provided with the repeater adapter for wiring instructions MEg be certain that all repeater modules are attached and secured prior to applying power to the adapter Failure to do so may cause damage to the adapter and modules Be certain to properly ground the DIN rails Refer to the instructions provided with the DIN rails There are currently no products available on the market that test the connector on the short distance fiber cable but there are many products available to test the connectors on the medium and long distance cable The ControlNet Fiber Media System Quick Start 1 15 9 Verify your network You can use RSNetWorx for ControlNet to verify whether or not your system meets the network parameter requirements 1 2 Go online and browse your network Look for invalid node addresses Look for segments that violate distance constraints Run logic that tests a single segment Run logic that tests multiple segments Run logic that tests complete network What is next Now that you have a general understanding of the ControlNet fiber media system go to Chapter
87. nning and Installation Manual because you need specific products designed for intrinsically safe locations The total number of repeaters 1786 RPFS RPFM RPFRL RPFRXL and coax 1786 RPCD in series path length total is limited to 5 repeaters and 6 segments Publication CNET INQ01A EN P April 2000 1 12 The ControlNet Fiber Media System Quick Start Figure 1 4 Basic fiber ring topology Coax Network puax Node s RPA RPFR X L Node s coax RPA RPFR X L RPA coax Node s RPFR X L Up to 10 nodes on a fiber ring RPA RPFR X L RPA RPFR X L Node s coax coax __ Node s Coax Network RPA RPFR X L Node s coax Node s RPFR X L Figure 1 5 Create a new segment with a fiber repeater esa coax segment aT T T Tm aT T T T Th trunk cabl trunk cable runk Cabie 2 N N section N FR FR i section 7 r l fiber segment A4 7 When you insert a fiber repeater into your media system you create a new segment The same restrictions on the number of taps and cable length apply to this new segment 5 Provide the data for You can use RSNetWorx for ControlNet to determine whether or not R
88. ocations N Identify the fiber media components that your network application requires 3 Plan the installation of the fiber media components 4 Install the fiber media system 5 Provide the NUT SMAX UMAX and worst case network delay data for RSNetworx 6 Terminate your fiber cable 7 Power your network 8 Test your fiber media segments 9 Verify your network Publication CNET INO01A EN P April 2000 The ControlNet Fiber Media System Quick Start 1 3 Why choose a Fiber Optic Fiber media holds many advantages over traditional copper media Media System Since fiber optic media transmits digitized information via light pulses ys j over glass or plastic fibers it avoids many of the problems common with copper applications The table below describes the features and benefits of a fiber optic media system If you are going to use fiber in an intrinsically safe area consult with your local safety coordinator Table 1 A The Features and Benefits of Fiber Media Features Benefits Electrical Isolation Fiber media is isolated from any potential electrical sources that cause disruptions on copper media Immunity to Interference Fiber media is immune to EMI electromagnetic interference since it uses light pulses on glass fibers Fiber media is effective in noisy environments heavy machinery multiple cable systems etc where copper could suffer disruptions Longer Distances A fiber medi
89. of your eye ATTENTION Isopropyl Alcohol is Flammable Flashpoint 540 F Can cause irritation to your eyes on contact Wear safety glasses In case of eye contact flush eyes with water for at least 15 minutes Inhaling fumes may cause mild narcosis In case of ingestion consult a physician Use with adequate ventilation ATTENTION Cleaved glass fibers are very sharp and can pierce the skin easily Do not let cut pieces of fiber stick to your clothing or drop in the work area where they can cause injury later Use tweezers to pick up cut or broken pieces of the glass fibers and place them on a loop of tape kept for that purpose alone Keep your work area clean ATTENTION A Terminate Your Network 6 5 Fiber optic cable is sensitive to excessive pulling bending and crushing forces Consult the cable specification sheet for the cable you are installing Do not bend cable more sharply than the minimum recommended bend radius Do not apply more pulling force to the cable than specified If you crush the cable or allow it to kink the cable may be damaged and that can alter the transmission characteristics of the cable ATTENTION A Laser light can damage your eyes Laser light is invisible Viewing it directly does not cause pain The iris of the eye will not close involuntarily as when you view a bright light Consequently serious damage to the retina of the eye is possible Never look into
90. ompared to coax media See Chapter 2 for a full explanation of the features and benefits of a fiber media system Use the following figure and term definitions to understand the ControlNet fiber media system Publication CNET INO01A EN P April 2000 2 2 Overview of the ControlNet Fiber Media System coax segment coax segment al T T T al T T T Tl trunk cable trunk cable FR FR network i N j FR fiber segment drop cable to isolate or fiber segment to isolate or extend a FR extend segment of your network segment o al T coves oy T T m your network trunk cable fiber segment N N N D Table 2 A Network Terms coax segment Term Means Coax repeater CR a two port active physical layer component that reconstructs and retransmits all traffic it hears on one coax segment to another coax segment coax segment trunk cable sections connected via taps with terminators at each end and with no repeaters fiber section e a length of fiber optic cable connecting two fiber repeater modules fiber repeater FR consists of a fiber repeater module and a fiber adapter components that reconstruct and retransmit all traffic it hears on one fi
91. on kit 5 Attach the end cap to the connector to your module Publication CNET INO01A EN P April 2000 6 4 Terminate Your Network Assembly Instructions for Corning Cable Systems UniCam Connectors Publication CNET INO01A EN P April 2000 When you purchase the Corning Cable Systems kit you will be provided with excellect detailed instructions with illustrations and a video tape demonstration The following information is a snapshot from the information provided with the Corning Cable Systems manual modified by Rockwell Automation The Corning Cable Systems UniCam connectors are field installable connectors that do not require epoxy or polishing The units incorporate a fiber stub that is bonded into a ferrule and polished in the factory not in the field The field fiber is cleaved and inserted into the connector so that it touches the cleaved end of the fiber stub When the cam is rotated both fiber ends are precisely aligned inside the connector and help in place After strain relieving the fiber to the connector it is ready to be mated to another connector inside an adapter Please be certain to read through the entire procedure in the Corning Cable Systems manual or other kit manufacturer before starting to assemble a connector Safety glasses are required to protect your eyes ATTENTION ATTENTION when you handle chemicals and cut fiber Pieces of glass fiber are very sharp and can easily damage the cornea
92. one in the field 1786 RPFRXL Fiber Ring or Point to Point The 1786 RPFRL 0 20km is designed to solve extra long distance applications that require 20000m 65 620 ft between two ControlNet products The extra long distance module also provides ground isolation between nodes and is not disrupted by the noise that affects traditional copper media The termination of the extra long distance cable must be done in the field Plan a ControlNet Fiber Media System 3 13 Determine Attenuation Levels You must calculate what your power budget for you fiber cable The short distance fiber cable is pre terminated therefore the attenuation levels are preset at a maximum of 13 3db 3dB for the two connectors and 10dB for 1km of fiber cable Once you start modifying the lengths of the cable installling bulkhead or fusion splices installing longer distances exposing the cable to temperature ranges employing different quality cable and connector types you must determine your attenuation levels The following examples provide you with a place to start when you begin to determine you attenuation levels Attenuation Levels for a Short Distance Fiber Segment The power budget for the short distance fiber repeater module is 4 2 db Therefore the maximum amount of attenuation between the two repeater modules shall not exceed 4 2 db This power budget is valid throughout the operating temperature range 0 to 60 degrees C The power budget of the
93. ons Do not test the cable with the wrong power source because you will get inaccurate readings The loss budgets are at the source wavelengths Optical power meters transmit a light source at one end of your cable with an optical power meter at the other end of the cable You can read the attenuation or power from the power meter to confirm the viability of your section power source The source must match the cable segment you are testing Table 7 A Fiber Module Distance and Ratings Fiber Module Distance Rating short 1786 RPFS 640nm 200 230 u medium 1786 RPFM 1300nm 62 5 125 u long 1786 RPFRL 1300nm 62 5 125 u extra long 1786 RPFRXL 1300nm gu Publication CNET IN001A EN P April 2000 Verify Your Network 7 3 Incorrect Loss Measurement Example If it is a medium distance system that you are testing and if you test it at 640nm lightsource you will get incorrect loss measurement it will not have any bearing You must to test the fiber at 1300nm because that is where the cable is rated Always record and maintain records for attenuation levels for each cable section strand The attenuation records are valuable tools for troubleshooting and maintain your network Considerable power loss in your cable could be a result of e poor splices improper bend radius e bending losses broken fibers e poor connections e contaminated or damaged connectors e high fiber bend r
94. or length Photo Diode see Pin Diode Pin Diode used as a receiving device in fiber optic systems to detect the presence of light and convert that light energy into current Plastic Clad Silica Fiber step index fiber made from silica core and a plastic cladding Plastic Fiber fiber consisting only of plastic with usually higher attenuation rates than glass Receiver produces logic levels in a fiber optic system by using photo diodes resistors amplifiers and level shift circuits Refractive Index the ratio of the speed of light in a vacuum to the speed of light in the material Responsivity ratio of output current voltage to the optical power Return Loss logarithmic ratio of power into a deice to the power reflected back due to mismatches in a system Return Loss 10 x log Pin Phack Publication CNET INQ01A EN P April 2000 Glossary 4 Publication CNET IN001A EN P April 2000 Scheduled Maximum Node Address Snax highest scheduled node address on the ControlNet network Sensitivity minimum optical power amplitude at the input of a receiver in order to achieve a predefined BER performance Single Mode single wavelength mode in conjunction with fibers and single wavelength fibers in conjunction with lasers Speed of Light the phase velocity of an optical wave Splice connection in the fiber designed to increase the distance of the fiber Step Index fibers with a refractive index profile form in a rec
95. peaters and including the delays through fiber repeater adapters and fiber modules In order for a network to operate the sum of the network s delays must be equal to or less than the maximum propagation delay of 121ps slot time The total network allowable delay each way is 121ps Listed below are delay values for the current ControlNet media items Table 3 B Delay values for ControlNet media ControlNet Media Items Delay values 1786 RPT RPTD 815 ns 1786 RPCD 100 ns 1786 RPA 901 ns 1786 RPFS 94 ns 1786 RPFRL TBD 1786 RPFRXL TBD 1786 RPFM 153 ns 62 5 micron fiber 5 01 ns meter 200 micron fiber 5 01 ns meter coax cable 4 17 ns meter Publication CNET INQ01A EN P April 2000 3 20 Plan a Contro Net Fiber Media System Maximum Propagation Delay Through a Network The example below has the following maximum delay path from node 1 to node 2 end to end See Figure 3 8 on page 3 21 Delay Path 1 From PLC to Flex I O Adapter Delay Path 2 1786 RPCD Delay Path 3 1000 meters of coax cable Delay Path 4 Fiber repeater 1786 RPA and 1786 RPFS Delay Path 5 3000 meters of 62 5 micron fiber cable Delay Path 6 Fiber repeater 1786 RPA RPFS Delay Path 7 100 meters of 200 micron fiber cable Delay Path 8 Fiber repeater 1786 RPA and 1786 RPFS Delay Path 9 20 meters of coax cable IMPORTANT Cable delays through taps are minimal and can be ignored Publication CNET IN001A EN P April 2000
96. r Adapte Te Fiber Repeater 1786 RPCD m repeater C 7 oo cH E cre O m O W J d Repeater Adapte r Fiber Repeater 1786 RPCD repeater B oO ag CH1 CH2 a hs H 7 W b da a rE OUT Ee Device 4 Ce a ee amp segment 3 Jj J 4 segment 4 Publication CNET INQ01A EN P April 2000 2 12 Overview of the ControlNet Fiber Media System Install the Repeaters in Parallel When you install repeaters in parallel you can install a maximum of 48 repeaters the maximum number of taps per 250m segment on any one segment If your link is configured using repeaters in parallel you count one of the repeater taps for one segment and the other repeater tap for the parallel segment that the repeater is connecting to the backbone network In the example below Segment 1 counts only one repeater tap as well as the taps for the nodes The other repeater tap is counted toward the limitations of Segment 4 Example e segment 4 is 983 7 m 3226 6ft e segments 1 2 and 3 Gf they have an equal number of nodes can each have up to 33 nodes on them a link can have 99 connections not including repeaters e segments 1 2 and 3 with 33 nodes on them can not exceed 478 4 m 145 8 ft Figure 2 8 Repeaters in Parallel U segment 4 F 0 z Fiber Repeater mACE cH E cHe 1786 RPCD n 0 Fiber Repe
97. re instances that determine the constraints of your topology of Your Topology Table 3 A Topology Constraints Constraint Only one path is allowed between nodes Example Only one path between Device 1 to Device 3 as in Figure 2 7 on 2 11 Maximum of 99 nodes are allowed on the network N A Maximum of 5 repeaters in series The path between Device 1 to Device 5 as in Figure 2 9 on 2 13 Constraint of each coax segment Taps amp Trunk Cable Sections See figure on page 2 3 Power Loss Budget of each fiber segment See Page 3 10 Maximum propagation delay through the network See Page 3 19 Network parameter requirements Calculate Your Network Use RSNetworx to verify your network topology Refer to the following examples when designing your ControlNet system Publication CNET INO01A EN P April 2000 3 4 Plan a ControlNet Fiber Media System Point to point Topology The following network example illustrates a point to point topology Figure 3 2 Point to point Topology 1786 8 1786 RPF aera 1786 RPA 7 1786 RPF x ian a i X ae Lemay CH D CH2 pai Ba mm o OH D cH ain cH E che Rx Tx R Tx Rxp Tx Rx Tx Rx x Fiber segmen Fiber segment 2 Fiber segment 3 Vaan fess
98. repeater module can be increased to 6 9 db when the fiber repeater module s operating temperature does not exceed 25 degrees C You can also affect the power budget by the quality of the connectors and fiber cable If you use a high quality connector and fiber cable you will be able to stretch your power budgets The higher quality connectors and cable can withstand a broader range of temperatures and distances In most situations you will not have to determine the attenuation levels for short distance fiber cable The cable comes preterminated with connectors with the proper length of cable to be used under the maximum attenuation levels But if you start modifying the cables with splices then you have to be able to calculate the attenuation levels Shown below is an example of determining the maximum fiber distance between two repeater modules at a maximum operating temperature of 25 degrees C and 60 degrees C These are measured path losses not theoretical If you calculate an out of system budget you will need to add a repeater Step 1 Total your Loss Budget With the type of fiber cable distance selected how much total loss dB can you have Step 2 Subtract Loss for connectors Select Connectors each connector for the short is 1 5db you need to account for two connectors per fiber cable segment Loss x 2 Publication CNET INQ01A EN P April 2000 3 14 Plan a ControlNet Fiber Media System Step 3 Subtract Loss for cab
99. sts to help you determine the the fiber media components needed for your application components e Determine how many nodes taps will be in the fiber segment Determine the length of the fiber segments Decide the type of fiber cable and connections to use Determine how many fiber connectors you will need e Calculate the maximum allowable segment length Determine if you will need additional repeaters and coax segments Publication CNET INO01A EN P April 2000 1 10 The ControlNet Fiber Media System Quick Start 4 Install the fiber media system Publication CNET IN001A EN P April 2000 Fiber Connectors Fiber cable connectors connect fiber cable to the fiber repeater module Currently all the fiber repeaters accept single mode fiber connections The short distance 1786 RPFS repeater uses the V pin plug n play type connector The medium and long distance modules over 300m use an ST type connector Your upper level distances can increase by using high quality cable and connectors The specifications needed to determine the type of connectors you need for your system based on distance and attenuation levels and how to connect and terminate the fiber cable is in this manual Module type Distance Connector 1786 RPFS 0 300m V pin 1786 RPFM 0 3km ST 1786 RPFRL 0 10km ST 1786 RPFRXL 0 20km ST Although sophisticated tools are required to terminate medium distance cable as well as a delic
100. t 10km extra long distance fiber module 1786 RPFRXL fiber module used with the adapter for distances lt 20km Intrinsically safe repeater adapter 1797 RPA adapter for use in areas where there is a risk of explosion or an explosive atmosphere Intrinsically safe medium distance module 1797 RPFM2 module for use in areas where there is a risk of explosion or an explosive atmosphere Fiber cables for 1786 RPFS 10 m cable assembly for 1786 RPFS 1786 FS10 10 m pre terminated 200y HCs cable segment for use with the RPFS module 20 m cable assembly for 1786 RPFS 1786 FS20 20 m pre terminated 200y HCs cable segment for use with the RPFS module 60 m cable assembly for 1786 RPFS 1786 FS60 60 m pre terminated 200y HCs cable segment for use with the RPFS module 100 m cable assembly for 1786 RPFS 1786 FS100 100 m pre terminated 200y HCs cable segment for use with the RPFS module 200 m cable assembly for 1786 RPFS 1786 FS200 200 m pre terminated 200y HCs cable segment for use with the RPFS module 300 m cable assembly for 1786 RPFS 1786 FS300 300 m pre terminated 200y HCs cable segment for use with the RPFS module Fiber connectors connector kit for 1786 RPFS fiber cable 1786 FSKIT includes 10 blue V pins 10 black V pins and 10 clamshells Short distance tools termination kit 1403 NTOL Short distance fiber connector kit stripping tool 1403 N13 replacement tool bullet spl
101. t 1 13 6 2 Series 2 11 Size and Weight 1 3 skew 3 22 ST connector 1 13 2 8 support P 3 local product support P 3 questions or comments about manual P 4 technical product assistance P 4 T tap 1 5 2 2 Terminate 1 12 1 14 terminators 1 5 1 15 2 2 Topology 2 5 Determine 1 5 Fiber Ring 1 12 Point to point 1 8 2 3 2 11 Ring 1 7 2 6 Star 1 6 2 5 2 11 total number of repeaters 2 9 Troubleshooting 1 5 fiber modules 7 5 trunkcable section 1 5 2 2 U Unicam Kit 1 13 V Verify your network 1 15 V pin 2 4 2 8 W Warnings Contamination 4 3 fiber cable 4 1 permanent damage to your eyes 4 4 Proper disposal 4 4 pulling tensions 4 4 Skin Contact 4 3 worst case 3 19 AB Allen Bradley Ly Publication Problem Report If you find a problem with our documentation please complete and return this form Pub Title Type ControlNet Fiber Media Planning and Installation Guide User Manual Cat No 1786 Series Pub No CNET INOO1A EN P Pub Date April 2000 PartNo 955138 59 Check Problem s Type Describe Problem s Internal Use Only L Technical Accuracy C text C illustration L Completeness _ procedure step C illustration L definition info in manual What information is missing F example F guideline C feature accessibility C explanation C other info not in manual L Clarity What is unclear C Sequence What is not in the right order
102. t to pull on the fiber Carefully flip the crimp handle 180 until it contacts the crimp tube Push down firmly to crimp The tool cannot over crimp the connector Flip the crimp handle back You should see a flat impression in the crimp tube indicating a proper crimp Leave the wrench handle down Remove the connector be lifting it and its cable straight up and out of the tool Do not pull the cable away from the crimped tube Handle connector only Slide the boot up the back of the connector until it reaches the cam A small bead of Loctite 411 adhesive my be applied around the cable at the rear of the connector just past the metal crimp tube before putting the boot on This will assist in holding the cable jacket in place Slide the boot into place quickly Do not hesitate or the adhesive will cure before the boot is fully seated The connector is now ready to use Leave the front dust cap on until you are ready to insert the UniCam connector into an adapter sleeve After you assemble your connectors onto your fiber cable and made the connections to your modules you are ready to go to Chapter 7 and verify your network Publication CNET INQ01A EN P April 2000 6 10 Terminate Your Network Publication CNET IN001A EN P April 2000 Chapter 7 Verify Your Network What This Chapter Contains Refer to the following table to find information on how to verify your network before you go online Topic See pa
103. tangle Tap couples a fraction of optical power from a fiber to a receiver Unscheduled Maximum Node Address U max The highest unscheduled node address on the ControlNet network Numerics 13 3 db 3 17 1786 FSKIT 2 4 1786 RPA 1 11 2 8 3 19 1786 RPCD 1 11 1786 RPFM 1 10 2 4 3 11 3 17 3 19 7 2 1786 RPFM RPFRL and RPFRXL 3 12 2 8 1786 RPFRL 1 10 2 4 3 11 7 2 1786 RPFRXL 1 10 2 4 3 11 7 2 1786 RPFS 1 10 1 11 2 4 3 10 3 19 7 2 1797 RPA 2 4 A AG 2 2 1 3 1 8 1 13 3 11 Attenuation medium distance 3 17 records 7 3 Attenuation Levels 3 13 BNC cable connectors 1 10 2 8 bridge 1 5 2 2 C cable connectors 1 10 2 8 CNET IN002A US P 2 9 CNET INO03A US P 2 9 ControlNet cable system cable connectors 1 10 2 8 component definitions 1 5 2 2 link 1 5 2 2 repeater configurations 1 15 2 13 6 9 network 1 5 2 2 node 2 8 related publications P 2 repeater 1 5 1 11 2 2 2 9 tap 1 5 2 2 terminators 1 5 1 15 2 2 trunkcable section 1 5 2 2 ControlNet Fiber Media 1 4 2 1 copper media 3 11 D Delay values 3 19 Index E electrical isolation 1 2 EMI immunity 1 4 2 1 Entry into Hazardous Areas 1 3 F Fiber cable 1 10 Fiber Connectors 2 8 Fiber media 1 3 fiber media components 1 8 1 9 2 3 fiber media specialist 1 10 3 11 Fiber Optic Cable 2 7 Fiber products 2 4 Fiber Repeater Hubs 1 11 1 12 2 8 Fiber Repeaters 2 9 G ground isolation 3 11 Guidelines for handling fiber optic cable
104. the end of a fiber when may have a laser coupled to it Should accidental eye exposure to laser light be suspected get an eye examination immediately IMPORTANT Components Please read though this entire section and the manual that is provided with the termination kit before you attempt to assemble a connector The UniCam ST compatible connector package contains these parts e Dust cap e Ferrule e Bayonet e Cam e Lead in tube e Rear cap e Crimp ring e Strain relief boots Publication CNET IN001A EN P April 2000 6 6 Terminate Your Network Connector Preparation The UniCam installation tool e positions the fiber into the connector e rotates the cam that aligns the fibers e and crimps the buffered fiber in place The tool makes it easy and accurate to assemble connectors A separate crimp tool is required to secure the aramid yarn when present in the cable IMPORTANT The following steps are provided as an overview to the process Be certain to refer to the illustrated instructions that Corning Cable Systems provides with your kit 1 Flip the crimp handle open and rotate the wrench so that the handle is up 2 Remove the connector components from the bag Remove and discard the cap from the rear of the connector Do not remove the front dust cap until the connector is completely assembled and you are ready to install it into an adapter sleeve 3 Examine the connector to be certa
105. to terminate the cable Refer to publication AG 2 2 ControlNet Media Component Listing for ordering information Termination is simply the process of attaching a connector to the ends of your fiber cable Unlike the ControlNet coax media where you are required to use a 75 ohm terminator on an unused tap the MT RJ connector has a dust cap that you place in the end of the connector When you are ready to use the MT RJ connector you simply remove the end cap and attach the cable Rockwell offers the short distance lt 300 m fiber cable preterminated as a kit for use with the 1786 RPFS fiber module You terminate the medium and long distance gt 300 m cable in the field Publication CNET INO01A EN P April 2000 6 2 Terminate Your Network Termination kits Terminate Your Cable Publication CNET IN001A EN P April 2000 MT RJ is the latest connector technology that allows for more compact connector grouping that is possible with the current ST style connector This section describes in general how to assemble the Corning Cable Systems Unicam ST compatible connectors The ST connector is a single mode connector and is compatible with the Rockwell medium distance fiber module and repeater products The Corning Cable Systems kit has shown to produce reliable and consistent high quality fiber connections termination This kit can also be used with the MT RJ connectors that will be used in our next generation products
106. u the flexibility to design a communication network for your particular application To take full advantage of this flexibility you should spend sufficient time to plan the installation of your network before you assemble any of the hardware Fiber media applications mainly provide the ability to extend or isolate a segment of a network Fiber media holds many advantages over traditional copper media Since fiber optic media transmits digitized information via light pulses over glass or plastic fibers it avoids many of the problems common with copper applications The features and benefits of a fiber media system range from EMI immunity to decreased size and weight when compared to coax media See Chapter 2 for a full explanation of the features and benefits of a fiber media system Use the following figure and term definitions to understand the ControlNet fiber media system coax segment coax segment al T T T al T T T Tk ern trunk cable trunk cable FR FR network N N i FR fiber segment drop cable to isolate or fiber segment to isolate or extend a FR extend segment of your network segment o al in a bl T T m your network trunk cable fiber segment N N N D Publication CNET IN001A EN P April 2000

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