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FR-DWDM

1. Network Electronics liability under this guarantee shall be to supply to the purchaser free of charge replacements of parts that have proved to be defect These will be repaired to our costs provided that we are informed by purchaser in writing telefax or mail within fourteen days after the defects has been revealed and the defective goods have been placed at Network Electronics disposal The defective parts shall become Network Electronics property as soon as they have been replaced Product Liability Network Electronics shall not be liable to damages to persons or property unless the purchaser proves that the loss is due to negligence on the part of Network Electronics or Network Electronics personnel Network Electronics shall not be liable for indirect losses of any kind such as loss of trade loss of profit etc In the event that Network Electronics is held liable by a third party for damages arising from product liability the purchaser shall be obliged to become a part to any litigation initiated by a third part against Network Electronics Network Electronics ASA Thorgya 3204 Sandefjord Norway Tel 47 33 48 99 99 Fax 47 33 48 99 98 E mail support network electronics com Web http www network electronics com Technical specifications are subject to be changed without notice 10 FR DWDM Rev 7 2 Interconnection of the DWDM systems The interconnection of each sub rack is shown below and this will apply to all sub rac
2. 1530 33nm iO nm p 7 i HO p 8220 m i nm EC 1558 15nm I 1 m 1 m f 1 nm 1 pi 1557 360M i 1 N f Waiwork DWDM MUX40 C C Wede in Noway o o o o o Figure 2 12 The backplane for the 40 channel DWDM system optical filter Network Electronics ASA Thor ya 3204 Sandefjord Norway Tel 47 33 48 99 99 Fax 47 33 48 99 98 E mail support network electronics com Web http www network electronics com Technical specifications are subject to be changed without notice 21 FR DWDM Rev 7 3 DWDM system description The DWDM concept requires defined sub rack frames FR DWDM with specified MUX modules and lasers on the transmitter side and DEMUX modules and PIN diodes on the receiver side Each frame is based on the original flashlink frame FR 2RU 10 2 F and contains modules needed for simultaneous transport of 4 format and protocol independent signals FR DWDM has the same options for power redundancy and system control as the FR 2RU 10 2 F Note that a point to point link always requires the same type of MUX and DEMUX The flashlink DWDM system is available in different versions and configurations The respective user manuals for the electrical to optical or the optical to electrical interfaces are enclosed with their respective cards This user manual contains all the optical specifications for the DWDM system regardless of number of channels Net
3. DWDM Ch12 Chit dj Fre MUX Ht Ch11 CHTO _ ub ra optical fiber ee Chi0 12 independent channels optical fiber DMUX EN a a x g 5g 25 i as i an w a Ar a lt x o E 20 2 3 3 ti un Figure 2 7 8 4 channel bi directional DWDM system description of system and connections of the sub racks 1 2 and 3 Red wavelengths going from left to right blue wavelengths going from right to left Network Electronics ASA Thorgya 3204 Sandefjord Norway Tel 47 33 48 99 99 Fax 47 33 48 99 98 E mail support network electronics com Web http www network electronics com Technical specifications are subject to be changed without notice 17 FR DWDM 2 4 16 channel systems Putting 4 sub rack frames together at each end of the fiber gives a 16 channel DWDM system Figures 2 8 2 10 show examples of different configurations x x lt x x O o 2 E z NQ 2 F 3 16 independent channels on o x optical fiber x x lt O x 5 50 25 it gt 2 os n wn N x lt x o o 2 E 2a as wn N x x lt at x g Ss F 2 as N N DWDA DM Ch16 16 independent afi Ch15 channels i Ch14 Ch13 Ch12 Ch12 vob optical fiber re Ch9 Ch9 Ch1 Ch8 Ch2 Ch7 Ch3 Ch6 Ch4 Ch5 Ch5 Ch4 Ch6 Ch3 Ch7 Ch2 Ch8 Ch1 Rev 7 Figure 2 8 16 channel unidirectional DWDM system description of system and connections of the sub ra
4. FR DWDM Flashlink Dense Wavelength Division Multiplexing System Rev 7 gt T am m me a D D A rt FE A 2 N 3 FR DWDM Rev 7 Index NRO VISION MISLON yaen a EE EE ce saecsncvusesusesscoadalesecesses TERESE A LOD 5 t GONE Fal INLOFINAUON ssc cciusccssseesiescevesecheced csessedessnnousienessusseshseel sneseesessaneuslenenceleaaasescseaseatiancusesensaescsleaassabes 6 TA SHARAN NEO OU HEADER Sri a tite nas ES Ear ede daca ER Rare RAE oes 6 EZ LaSer sA EIN P TOCOU OS mascara E N ennen nel E EE NS 6 TONIC COR CLEAR AE rd ETEEN TO OEE ENE TO TEE S dl A POWEr GISSID ATION Mihe DW DM SyY SENi oee Tr E E yada deta T RT OA 9 LI VA PRAM Memen ease a a AD onda a a a i 10 2 Interconnection of the DWDM systems eesssssssceeccoccssssscececcoosssscccoccossssececeocssssecceccosssssececocsssssseceeosso 11 Del CHANNEL SYSE S e a E AEE E E ATEA 12 2 ONAE SNS TS E ea T a E NA 13 ZW LC NONNE LS VTIS EE E E E NE A ERNE SENSE eons TNS SENESTE SEE REDE 15 ZALO NANETS SICING EEEE EE E EE E TAA E AE NE lerede 18 DE D2 CHAUNE SV SICINS is cence T Sieg EE ET Sees ae Ee aS 21 LOAN NAN SVS e S aa E A a AA NE 21 SDWDM system GOESCH IP ON graces rer E E E T a 22 Ded SPECHICAIIONS JOU FO EN SYSTE RE ae svanca sus lenchartstanedeantirnceasuas gual taantnud MelvesncecisreuGleneemaiteratadasartecniste 23 5 Optical specifications Jor 32 channel system seco EET a as Sauk 26 3 3 Optical specifications fOr 40 ChANNEL SYSTCM cc
5. FR DWDM Rev 7 7 3R regeneration 7 1 Introduction The 3R regeneration product is a flashlink 2RU frame with both an optical demultiplexer and a multiplexer fitted with one to four of either MR TR or SDI TR cards or a mixture of the two 3R functionality means Re amplification Re clocking and Re shaping one R for each of the processes giving a complete restoration of the optical signals A block diagram of the function is shown in figure 7 1 DWDM DMUX MUX Al A2 A3 Aa Al A2 A3 4 Figure 7 1 A schematic overview of 3R regeneration In this case three DWDM wavelengths travel from left to right and one from right to left The first step 1s optical demultiplexing The second step is optical to electrical conversion The third step is electrical regeneration of the signals The fourth step is electrical to optical conversion The fifth step is optical multiplexing All these operations can be done for four separate DWDM wavelengths within a single flashlink frame occupying only 2RU of rack space the 3R product range is well suited for installations where rack space is at a premium Basically the 3R regeneration product line is used for long haul DWDM systems where full electrical regeneration of the signals is needed thereby effectively extending the maximum reach of the system beyond the limits of single hop optical links The other case is when the wavelength count is low therefore making the 3R regeneration prod
6. mm HE a OO uM a oa A b D Fa yy bs Surnu SR P ee eo n r Figure 5 6 Inserting module cards continued On the top of the rack is a hole above each module slot When the tip of the handle is just below this hole start bending the handle downwards as in figure 5 6 a The tip of the handle enters the hole and the card is locked and proper contact ensured when the handle is in upright position figure 5 6 b 5 3 Card removal To remove a module card from the sub rack frame release the card by pulling the red handle until it is in horizontal position see figure 5 7 a Then pull the card out of the sub rack with the red handle figure 5 7 b After removing a card it is important that the protective cap is put back on the ferrule tip figure 5 7 c and d 1 When removing a receiver card from the sub rack the laser beam may be present inside the sub rack transmitted through the fiber To avoid damaging your eyes never look directly into the sub rack unless you are 100 sure that no laser beam is present inside the sub rack Network Electronics ASA Thor ya 3204 Sandefjord Norway Tel 47 33 48 99 99 Fax 47 33 48 99 98 E mail support network electronics com Web http www network electronics com Technical specifications are subject to be changed without notice 38 FR DWDM Rev 7 Figure 5 7 Removal of module card 5 4 Attaching the front panel To attach the front
7. 1 i gl A SUB RACK 1 0 0 1 2 0 1 0 3 0 1 1 2 4 1 0 0 4 5 1 0 1 n 6 1 1 0 7 1 1 1 1 0 Fig 4 5 DIP switch The GYDA SC Rack System Controller automatically detects the position of the cards within each sub rack More detailed information on the RS 422 configuration can be found in a separate document and at our web site http www network electronics com Network Electronics ASA Thorgya 3204 Sandefjord Norway Tel 47 33 48 99 99 Fax 47 33 48 99 98 E mail support network electronics com Web http www network electronics com Technical specifications are subject to be changed without notice 33 FR DWDM Rev 7 5 Module card mounting In order to replace modules within a sub rack the front panel must be removed Each module has a corresponding connector module at the rear 1 Be careful when swapping module cards If a receiver card is removed from the sub rack an invisible laser beam may be emitted inside the sub rack from the laser at the other end The laser beam might be harmful to your eyes 5 1 Removing the front panel Detach the front panel by putting your fingers on the right hand side of the front panel and pull gently as shown in the figures below Then pull the front panel slightly to the right before removing it L Pa network Flashlink i 4 Hold here Pull here Left circle Right circle Figure 5 1 Removing the front panel A more detailed description of how the fron
8. all signals should be connected in the same manner meaning that the connection from the demultiplexer should be to the corresponding optical input of the MR TR SDI TR cards Each of the optical outputs should likewise be connected to the optical multiplexer For a bi directional system like the system shown in figure 7 1 the wavelengths running downstream and upstream should be connected to the input and output ports of MR TR SDI TR respectively Network Electronics ASA Thor ya 3204 Sandefjord Norway Tel 47 33 48 99 99 Fax 47 33 48 99 98 E mail support network electronics com Web http www network electronics com Technical specifications are subject to be changed without notice 50 FR DWDM Rev 7 8 Application notes 8 1 3R regeneration used in a long haul connection The block diagram shown in figure 8 1 illustrates the simplicity of the 3R products In this example 4 signals are transported over a distance of 215km using 2 pieces of 3R 2RU DWDM frames to do the signal regeneration 65kmM Figure 8 1 3R regeneration used for a 215km long haul digital video connection running over optical fiber Other application examples can be requested from Network Electronics head quarters 8 2 ADM nodes Add Drop Multiplex nodes can be built by combining a digital video router with the flashlink DWDM system This can be used together with the 3R DWDM product lines or the regular DWDM transmitter and receiver frames An
9. be changed without notice 13 FR DWDM Rev 7 The ports are as follows C Common port B Blue wavelengths the shortest wavelengths to sub racks 3 and 4 R Red wavelengths the longest wavelengths to sub racks 1 and 2 independent Ch12 Ch12 Ch11 Ch11 Ch10 Ch10 Ch9 optical fiber Ch9 Ch4 Ch4 Ch3 Ch3 Ch2 Chi Ch2 Chi 8 independent channels CX optical fiber Upgrade port Upgrade port MUX sub rack 3 DMUX sub rack 3 DMUX sub rack 1 MUX sub rack 1 Figure 2 4 4 channel bi directional DWDM system description of system and connections of the sub racks I and 3 Network Electronics ASA Thorgya 3204 Sandefjord Norway Tel 47 33 48 99 99 Fax 47 33 48 99 98 E mail support network electronics com Web http www network electronics com Technical specifications are subject to be changed without notice 14 FR DWDM Rev 7 independent Chi channels Ch8 Ch2 x Ch7 Ch3 Ch Ch4 optical fiber Chs Ch5 Ch Ch7 Ch Ch4 Ch3 Ch2 Chi 8 independent channels C optical fiber Upgrade port Upgrade port MUX sub rack 1 MUX sub rack 2 DMUX sub rack 2 DMUX sub rack 1 Figure 2 5 4 channel bi directional DWDM system description of system and connections of the sub racks I and 2 2 3 12 channel systems Adding another sub rack frame to the 8 channel system makes a 12 channel system capable of transmitting 12 independent
10. be changed without notice 29 FR DWDM Rev 7 3 2 Optical specifications for 32 channel system Number of channels 32 Available wavelengths See section 3 4 Connector SC SPC Insertion loss per mux demux pair marae Sanaa ae Insertion loss uniformity 3dB Channel Spacing 100GHz Passband 0 2nm min Adjacent Channel Isolation 25dB min 28dB typ Non Adjacent Channel Isolation 40dB min Directivity 45dB min Thermal Wavelength Stability 1 0 pm Cmax Return loss 40dB min PDL 0 2dB max 0 1dB typ Operating Temperature 0 40 C Storage Temperature 40 85 C Optical Power 300mW max 3 3 Optical specifications for 40 channel system Number of channels 40 Available wavelengths See section 3 4 Connector SC SPC Insertion loss per mux demux pair aan EE TROB mak Insertion loss uniformity 4dB Channel Spacing 100GHz Passband 0 2nm min Adjacent Channel Isolation 25dB min 28dB typ Non Adjacent Channel Isolation 40dB min Directivity 45dB min Thermal Wavelength Stability 1 0 pm Cmax Return loss 40dB min PDL 0 2dB max 0 1dB typ Operating Temperature 0 40 C Storage Temperature 40 85 C Optical Power 300mW max Network Electronics ASA Thorgya 3204 Sandefjord Norway Tel 47 33 48 99 99 Fax 47 33 48 99 98 E mail support network electronics com Web http www network electronics com Technical specifications are subject to be changed without notice 26 FR DWDM Rev 7 3 4 Wavelength Availability Chart acc
11. filters are mounted in opposite orders on the two sides On one side of the optical link the lowest wavelengths has the lowest insertion loss whereas the lowest wavelength will have the highest insertion loss on the other side The specification of the 32 channel optical filters can be found in chapter 3 O O O O nm i nm 1 i nm nm yt mop nm I nm Ht m H m O m 1557 3enm N Waitwork DWDM MUX32 C electronics asa O O O O Figure 2 11 The backplane for the 32 channel DWDM system optical filter 2 6 40 channel systems The configuration of a flashlink 40 channel DWDM system
12. follows the same philosophy that was used in chapter 2 of this user manual Corresponding wavelengths should always be connected from the optical demultiplexer multiplexer to the optical ports of MR TR SDI TR The cascading pattern if more Network Electronics ASA Thorgya 3204 Sandefjord Norway Tel 47 33 48 99 99 Fax 47 33 48 99 98 E mail support network electronics com Web http www network electronics com Technical specifications are subject to be changed without notice 49 FR DWDM Rev 7 than four wavelengths are being regenerated is also the same as described in chapter 2 Use the upgrade ports of the optical filters to connect to the next set of wavelengths Recall that the configuration of the 3R frame s is the same as if you put a receiver frame and a transmitter frame back to back It is therefore wise to complete the optical signal paths on the demultiplexer side before doing the same exercise on the multiplexer side The upper optical port on the MR TR SDI TR card is the optical output the lower optical port is the optical receiver Epe JODEE aE LA POWER GYDA MR TR MR TR MR TR MR TR MUX MUX DMUX DMUX Figure 7 3 Backplane overview of the 3R 2RU flashlink frame fitted with 4 MR TR cards for simplicity only the optical ports of the MR TR cards are shown The frame is equipped with a GYDA System Controller that allows for remote control and monitoring of the signals over TCP IP For uni directional signals
13. have exceeded the transmission budget of the optical link for that channel The individual channels have a small variation in optical power causing the weakest channel to disappear first when the transmission budget is at its limit Please recalculate your transmission budget and compare to the specifications of the system No electrical SDI signal on the receiver side If all module LED s on the front panel are green check that the receiving signal cable is connected to one of the two digital outputs and not to the digital input connection If one of the LED s 1s red please refer to the user manual of the module No contact with the Gyda system controller on the LAN Check that the operator s computer is connected to the LAN The ethernet cable pin layout shall be one to one if Gyda 1s connected to a hub or switch If a computer is connected directly to Gyda an ethernet cable with twisted pinning must be used Go through the enclosed Gyda Quick Start Guide to install the module properly Network Electronics ASA Thorgya 3204 Sandefjord Norway Tel 47 33 48 99 99 Fax 47 33 48 99 98 E mail support network electronics com Web http www network electronics com Technical specifications are subject to be changed without notice 53 FR DWDM Rev 7 The Gyda system controller is not displaying all sub racks connected Make sure that all sub rack frames have unique DIP switch addresses The Gyda system controller is adding no
14. inserted one should remove the plastic cap from the fiber ferrule as shown in figure 5 3 Do not touch the ferrule tip with your fingers Remove plastic cap before inserting module cards Figure 5 3 Removal of plastic cap colour most often red or black SUB RACK SEEN FROM THE FRONT WITH THE FRONT PANEL REMOVED Make sure cards enter plastic guide rails both top and bottom properly before sliding the cards into the sub rack Optical modules part of sub rack Inserted card Card position 1 2 3 4 5 6 T 8 g Assigned slots for power supplies Figure 5 4 Overview of card positions inside an FR DWDM sub rack Network Electronics ASA Thorgya 3204 Sandefjord Norway Tel 47 33 48 99 99 Fax 47 33 48 99 98 E mail support network electronics com Web http www network electronics com Technical specifications are subject to be changed without notice 36 FR DWDM Rev 7 Right side view Figure 5 5 Inserting module cards Slide the card into the plastic guide rails inside the sub rack until the red handle is close to the sub rack front A detailed description of the last part of the insertion process is shown in figure 5 6 Network Electronics ASA Thorgya 3204 Sandefjord Norway Tel 47 33 48 99 99 Fax 47 33 48 99 98 E mail support network electronics com Web http www network electronics com Technical specifications are subject to be changed without notice 37 FR DWDM Rev 7
15. is the same as for the 32 channel system Please see section 2 5 for further details The specification of the 40 channel optical filters can be found in chapter 3 O o 2 H nm HE I 1535821 Hn nm io i I nm D nm fi 1
16. maximum current of 5 5A at 5V and 1A at 15V The pin out is the same for both DC1 and DC2 Pin 1 GND for DC Pin 2 5V Output Pin 3 Relay Open in normal state Pin 4 15V Output Pin 5 positive part of 48V DC supply Input Pin 6 Reserved Pin 7 Relay Open in normal state Pin 8 15V Output Pin 9 negative part of 48V DC supply Input Pin 1 2 3 and 8 are common to both DC1 and DC2 Physically connected When the power supply is in operation a green LED will light on the front Network Electronics ASA Thor ya 3204 Sandefjord Norway Tel 47 33 48 99 99 Fax 47 33 48 99 98 E mail support network electronics com Web http www network electronics com Technical specifications are subject to be changed without notice 29 FR DWDM Rev 7 network Flashlink T T Green power LED s Figure 4 2 The front of the flashlink frame showing the power LEDs If a redundant power supply solution is used both power LED s will show green light In the FR DWDM positions 1 5 contains only optical components with no electrical connections hence there are no status LED s in the first five card positions 4 2 RS 422 connection At the rear end of the sub rack is an RS 422 bus When used in combination with the GYDA SC M Rack System Controller up to 8 sub racks can be controlled and monitored In a DWDM system one GYDA SC M Rack System Controller will be sufficient on each end of the fiber Allowing for a 16 channel sys
17. system consists of two sub racks of 2RU each One sub rack at the transmitter side and one sub rack on the receiver side A feature of the system is that by swapping two laser cards with the corresponding receiver cards in the corresponding sub rack frame a bi directional system with 2 channels in each direction is possible 4 independent channels Chi Chi Ch2 R Ch2 Ch3 do _ Ch3 Ch4 optical fiber Ch4 Upgrade port Upgrade port 4 independent channels MUX sub rack 1 DMUX sub rack 1 Figure 2 2 4 channel unidirectional DWDM system description of system and connections of the sub racks Network Electronics ASA Thorgya 3204 Sandefjord Norway Tel 47 33 48 99 99 Fax 47 33 48 99 98 E mail support network electronics com Web http www network electronics com Technical specifications are subject to be changed without notice 12 FR DWDM Rev 7 2 2 8 channel systems Expanding the 4 channel system with another sub rack frame makes an 8 channel DWDM system able to transmit 8 channels in one direction or 4 channels in each direction Examples of how these systems can be configured are shown in figures 2 3 2 5 independent channels Ch1 Ch8 Ch2 Ch7 Ch3 Ch Ch4 optical fiber Ch5 Ch5 Ch4 Ch Ch7 Ch Ch3 Ch2 Chi 8 independent channels Oy Upgrade port Upgrade port optical fiber e s me 5g 25 ee os iw Taiwork Teiwork mA MUX sub r
18. the ferrule is dirty it must be cleaned before re connection If a clean connector is pressed against a dirty connector both connectors will become dirty resulting in possible degradation of signal quality Or even worse you may damage the surface of the connector s We recommend that the cleaning procedure is done by using a special cleaning tape suitable for this purpose called CleTop see picture below Network Electronics ASA Thor ya 3204 Sandefjord Norway Tel 47 33 48 99 99 Fax 47 33 48 99 98 E mail support network electronics com Web http www network electronics com Technical specifications are subject to be changed without notice FR DWDM Rev 7 1 4 Power dissipation in the DWDM system Due to the need of very stable laser emission wavelengths a precise temperature control of the laser cavity is needed The laser wavelength will drift with changing temperature 1f the laser is not controlled This means that the internal temperature of the laser must be kept at a constant level for all operation temperatures This is done through the use of a Peltier element placed within the laser package The function of the Peltier element is to control the temperature in a similar way as a refrigerator If the ambient temperature increases the Peltier element will cool the inside of the laser package to keep the temperature at a constant level If the opposite is the case and the ambient temperature decreases the Peltier elemen
19. 7 Product features Regeneration of 4DWDM wavelengths per 2RU rack space DWDM wavelengths are ITU T G 694 1 wavelength compliant Broadcast data and telecom applications Wavelength transponding routing possible Modular concept buy as you grow Bi directional traffic on the same fiber 7 2 3R Specifications Optical filtering and insertion losses will be the same as described for the 16 channel system in section 3 1 of this user manual For a detailed description of the MR TR and the SDI TR cards we refer to their respective user manuals We give a brief description of their specifications here Noo ea ooo ee up to max bit rate Power Power consumption sss Call your local dealer for assistance in systems design by discussing your signal transport needs Signals like MADI Fibre Channel and others can be transported with this product feature enabled The optical budget between 3R frames will depend on the number of channels The following insertion losses must be subtracted from the optical power budgets difference of transmitter output power and receiver sensitivity Insertion loss all optical filters included 4 channel system Max 6dB per mux demux pair 8 channel system Max 8dB per mux demux pair 12 channel system Max 10dB per mux demux pair incl R B split 16 channel system Max 10dB per mux demux pair incl R B split 7 3 Frame configuration The configuration of the optical signal paths through the frame
20. DWDM DMUX sub rack 3 16 independent channels OD optical fiber DMUX sub rack 4 DMUX MUX sub rack 3 sub rack 2 DMUX sub rack 1 Chi6 Chi5 Chi4 Ch413 Ch12 Ch11 Ch10 Ch9 Ch8 Ch7 Ch6 Ch5 cha 1110 120 Ch3 Ch2 Chi Rev 7 Figure 2 10 12 4 channel bi directional DWDM system description of system and connections of the sub racks 1 2 3 and 4 12 channels from left to right 4 channels from right to left Network Electronics ASA Thor ya 3204 Sandefjord Norway Tel 47 33 48 99 99 Fax 47 33 48 99 98 E mail support network electronics com Web http www network electronics com Technical specifications are subject to be changed without notice 20 FR DWDM Rev 7 2 5 32 channel systems Figure 2 11 shows the backplane for the flashlink 32 channel DWDM optical filter frame Each optical port supports a dedicated wavelength that is marked on the sub rack frame The connector is an SC PC connector Each port should be connected to the corresponding wavelength for each channel card with an optical patch cord The common port supports all wavelengths in either direction and should therefore be connected to the single fiber between the two locations where the flashlink 32 channel DWDM system is installed The common port can be fitted with an FC PC connector on request The optical filters are sold in pairs using cascaded thin film filters for wavelength selection This means that the
21. Glass has very different physical properties than the copper used in electrical wires 6 1 Handling of optical fibers In practical terms this means that these precautions must be taken e Do not bend the fiber too much e Do not put anything on top of the optical fiber e Keep the connectors clean from dust If a fiber is bent to much parts of the transmitted light is lost We can compare light transmission through an optical fiber with driving a car at maximum speed We want the road to be as straight as possible The probability that your car is still on the road at the other end of the turn decreases with increasing curvature of the turn Although there is a major difference The transmitted light is gradually lost when the curvature increases while your car is either on the road or not Therefore all the datasheets of optical fibers have a point called minimum bend radius or something similar This means that any bending of the fiber corresponding to a bend radius less than the given value will make the light leak out of the fiber A typical value is 20 mm to 40 mm Bellcore standard for single mode fibers You should also avoid putting any heavy items on top of the optical fibers because this will change the optical properties of the fiber and contribute to errors in the transmitted signal Unless the fiber is damaged it will regain its optical properties after a bend is straightened out or the items are removed the squeeze is r
22. R PIGTAILS ENDS NEVER LOOK DIRECTLY INTO THE END OF THE FIBER NEVER USE MICROSCOPES MAGNIFYING GLASSES OR EYE LOUPES TO LOOK INTO A FIBER END USE LASER SAFETY EYEWEAR BLOCKING LIGHT AT 1310 nm AND AT 1550 nm Instruments exist to verify light output power Power meters IR cards etc The FR 2RU 10 2 is classified as Class 1 laser product according to EN 60 825 1 94 A11 96 and CFR Ch1 1997 Part 1040 10 If the front panel is removed the FR 2RU 10 2 is classified as Class 1 laser product according to EN 60 825 1 94 A11 96 and class IIIb according to CFR Ch1 1997 Part 1040 10 Maximum output power 17 mW Operating wavelengths 1550 20nm R PRODUCT REF FDA CFR Ch 1 4 1 97 Ed 1040 10 Network Electronics ASA Thorgya 3204 Sandefjord Norway Tel 47 33 48 99 99 Fax 47 33 48 99 98 E mail support network electronics com Web http www network electronics com Technical specifications are subject to be changed without notice FR DWDM Rev 7 1 3 Connector cleaning Optical connectors should be kept clean at all times Whenever a connector is disconnected the enclosed protective dust cap should be put on This protects the ferrule used for fiber alignment and prevents the surface from being scratched or damaged SCIPC connector protective cap ferrule 1 optical fiber plastic housing protective coating blue blue Figure 1 1 The different parts of an SC PC connector Cleaning procedure If
23. SA Thorgya 3204 Sandefjord Norway Tel 47 33 48 99 99 Fax 47 33 48 99 98 E mail support network electronics com Web http www network electronics com Technical specifications are subject to be changed without notice 31 FR DWDM Rev 7 GYDA SC M 110 2 termination Figure 4 4 Control of 8 sub racks with GYDA SC M 4 6 Address setting on each sub rack Each sub rack can be assigned an address through the DIP switches on the rear Maximum 8 sub rack addresses are available This address setting only applies when the sub rack is used in combination with a GYDA SC M Rack System Controller If you have more than 8 sub racks together you need several GYDA SC M Rack System Controller cards 1 In order to ensure proper operation of the system it is important that no sub racks controlled by the same GYDA SC M Rack System Controller card have the same address set Reset the sub rack after reconfiguring the sub rack system The last sub rack frame must be terminated with a 1100 resistor Network Electronics ASA Thor ya 3204 Sandefjord Norway Tel 47 33 48 99 99 Fax 47 33 48 99 98 E mail support network electronics com Web http www network electronics com Technical specifications are subject to be changed without notice a2 FR DWDM Rev 7 The setting of the address of a sub rack is as follows Address 0 means switch to the right I means switch to the left Address 4 2
24. T11363 2006 X Indicates that this toxic or hazardous substance contained in at least one of the homogeneous materials used for this part is above the limit requirement in SJ T11363 2006 Environmentally friendly use period The manual must include a statement of the environmentally friendly use period This is defined as the period of normal use before any hazardous material is released to the environment The guidance on how the EFUP is to be calculated is not finalised at the time of writing See http www aeanet org GovernmentA ffairs qfLeOpAaZ XaMxqGjSFbEidSdPNtpT pdf for an unofficial translation of the draft guidance For our own products Network Electronics has chosen to use the 50 year figure recommended in this draft regulation Network Electronics suggests the following statement on An Environmentally Friendly Use Period EFUP setting out normal use EFUP is the time the product can be used in normal service life without leaking the hazardous materials We expect the normal use environment to be in an equipment room at controlled temperature range 0 C 40 C with moderate humidity lt 90 non condensing and clean air not subject to vibration or shock Further a statement on any hazardous material content for instance for a product that uses some tin lead solders Where a product contains potentially hazardous materials this is indicated on the product by the appropriate symbol containing the EFUP The h
25. ack 2 DMUX sub rack 1 Tiwork Tobwork Figure 2 3 8 channel unidirectional DWDM system description of system and connections of the sub racks I and 2 Notice the reverse order of the frames at the two ends of the fiber A 4 channel bi directional system can be configured in two different ways One can either use the red blue split filter module to combine sub racks 1 and 3 or sub racks 2 and 3 to have a group of 4 channels going in each direction at different colour bands This is the preferred solution because it 1s least sensitive to channel cross talk As an alternative a solution with two cascaded sub racks can be used sub racks 1 and 2 is the most cost efficient combination here but this combination is more sensitive to channel cross talk than the solution using sub rack 3 In figure 2 4 we also see the connector module for the red blue split module dividing the used wavelengths into two groups which is placed within sub rack 3 This filter is used for two reasons The first reason is to reduce the overall insertion loss The second reason is that in a bi directional system some prefer to split the channels into two groups The blue wavelengths in one direction and the red wavelengths in the other direction Network Electronics ASA Thorgya 3204 Sandefjord Norway Tel 47 33 48 99 99 Fax 47 33 48 99 98 E mail support network electronics com Web http www network electronics com Technical specifications are subject to
26. andard WDM MOPUIM puz MOPUIM pig 1310 nm 1550 nm Wavelength 1552 52 nm Wavelength Av 200 GHz 193 1 THz Figure 6 4 Wavelength band utilisation in a WDM systems and b DWDM systems From figure 6 4 b we see that the capacity of the fiber is multiplied 16 fold by utilising the principle of DWDM where many closely spaced channels within the third window are transmitted simultaneously through one single mode fiber A channel spacing of 100GHz allows for 40 fold multiplication of the fiber capacity The centre wavelength of each channel is exactly specified by the International Telecommunication Union ITU in the recommendation ITU T G 692 The reference frequency is 193 1 THz corresponding to a wavelength of 1552 52nm All the allowed DWDM channels are related to this frequency through the relation 193 1 THz 1 50 GHz where n is an integer The flashlink system uses n 4 or n 2 giving a channel spacing Av of respectively 200 GHz or 100GHz The reason for using frequency as reference instead of wavelength is the physical nature of light The frequency is not dependent on the transmission medium properties as is the case for the wavelength Network Electronics ASA Thorgya 3204 Sandefjord Norway Tel 47 33 48 99 99 Fax 47 33 48 99 98 E mail support network electronics com Web http www network electronics com Technical specifications are subject to be changed without notice 44 FR DWDM Rev 7 DWDM syste
27. are subject to be changed without notice 42 FR DWDM Rev 7 Bad connection Figure 6 3 Bad connector connection This also implies that people working with patching of fiber connectors must be aware of this An optical fiber is made of glass and must be treated as such not as an electrical wire Compare it to the lens of a camera You don t want fingerprints on the lens but since the lens area is large compared to the cross sectional area of a single mode fiber some light will pass the lens The photo will be exposed but with degraded quality A single mode optical fiber with a cross sectional area of circa 1 10 000 000 000 square meter is far more dust sensitive To protect the connectors from dust one shall always put on the plastic cap red or other colour which is on the connector end at delivery or enclosed in a plastic bag whenever a fiber end is disconnected If there is a chance that the fiber connector is dirty one should clean the connector before putting it close to a clean fiber ferrule If a clean connector is pressed against a dirty connector both connectors will become dirty resulting in degradation of signal quality Or even worse you may damage the surface of the connector s Using a special cleaning tape suitable for this purpose does the cleaning You may also use a soft tissue and iso propyl alcohol or dry and oil free pressurised air To blow on the tip of the ferrule will not be sufficient More informatio
28. azardous material content is limited to lead Pb in some solders This is extremely stable in normal use and the EFUP is taken as 50 years by comparison with the EFUP given for Digital Exchange Switching Platform in equipment in Appendix A of General Rule of Environment Friendly Use Period of Electronic Information Products This is indicated by the product marking Network Electronics ASA Thorgya 3204 Sandefjord Norway Tel 47 33 48 99 99 Fax 47 33 48 99 98 E mail support network electronics com Web http www network electronics com Technical specifications are subject to be changed without notice 57 FR DWDM Rev 7 5 It is assumed that while the product is in normal use any batteries associated with real time clocks or battery backed RAM will be replaced at the regular intervals The EFUP relates only to the environmental impact of the product in normal use it does not imply that the product will continue to be supported for 50 years Recycling information Network Electronics provides assistance to customers and recyclers through our web site http www network electronics com Please contact Network Electronics Customer Support for assistance with recycling if this site does not show the information you require Where it is not possible to return the product to Network Electronics or its agents for recycling the following general information may be of assistance Before attempting disassembly ensur
29. ccccccsssececccccecce cee eeeeeeeeeeeeeena ae eeeeeeeeeeeaaaaaeeeeeeeeenaas 26 3 4 Wavelength Availability Chart according to ITU T G 694 1 for 32 and 40 ch systems 27 TSC OnNNECOM ATOW IN caste ik cette Machi a E T tai alge Nahe 28 DIO VIODUIC Card LEDS or n e ait atau ate aD exo T A E eee 28 4 Power connection and RS 422 CONMECTION cccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccsccccccccccccoecs 29 4A P m ont DDI aeran EET ED eee eee eee 29 BOR KSA CONNECT OMaria a RENESTE SETE aan SEERE SENE ESPN EST a SIGE SSEELET 30 AD PO RSD oaser seere ESS E SE SEE ET re re raser se 30 Mee ISA 2 DV OLOCO EIEEE AE I T I AE E SO E I AE A BYRET SES T E SES ERE SES SERENE 31 43 CONNECTING several SUD TACKS TODELT anoa E EN A A 31 AC Address selline on each subrack iss nessa e cua aca Sess E D Ea 32 S Mod le CALC TION GMI san Ea E T E A E E E 34 Del IRCMOVING the Ont pane lisinin a en e a e REE ORO RE N RRN 34 RO R A save ETE E PE E EA ETE E SER RE EA E E A E AE A ET AE AE T 36 Network Electronics ASA Thor ya 3204 Sandefjord Norway Tel 47 33 48 99 99 Fax 47 33 48 99 98 E mail support network electronics com Web http www network electronics com Technical specifications are subject to be changed without notice FR DWDM Rev 7 DESC GIG 32 TOD USE 1 RVESRESR ERRE act are a ns ean Uae ats a a FEE NERE SEE ERE ES ene taeda OBE SEES TESTE 38 IFANC STI FONE PONO ac itis eneret eels tes 39 EIDE r ODC S
30. channels in one direction or 4 channels in one direction and 8 channels in the opposite direction All channels are transmitted through the same fiber Figures 2 6 and 2 7 shows examples of a 12 channel unidirectional system and a bi directional 8 4 channel system Network Electronics ASA Thorgya 3204 Sandefjord Norway Tel 47 33 48 99 99 Fax 47 33 48 99 98 E mail support network electronics com Web http www network electronics com Technical specifications are subject to be changed without notice 15 FR DWDM Rev 7 Upgrade port Upgrade port 12 independent channels Ch12 vig Cp flashlink Chi1 MUX me chi _ optical fiber sub rack Cho 3 Ch1 Ch2 Ch3 Ch4 Ch5 Ch6 Ch7 Ch 12 independent channels Oy optical fiber MUX sub rack 3 DMUX sub rack 3 DMUX sub rack 2 MUX sub rack 1 MUX sub rack 2 DMUX sub rack 1 Figure 2 6 12 channel unidirectional DWDM system description of system and connections of the sub racks 1 2 and 3 In figure 2 7 we see an example of how a bi directional system can be configured Network Electronics ASA Thorgya 3204 Sandefjord Norway Tel 47 33 48 99 99 Fax 47 33 48 99 98 E mail support network electronics com Web http www network electronics com Technical specifications are subject to be changed without notice 16 FR DWDM Rev 7 Upgrade porta Upgrade port 12 independent 2 channels T Ch12
31. cks 1 2 3 and 4 Network Electronics ASA Thor ya 3204 Sandefjord Norway Tel 47 33 48 99 99 Fax 47 33 48 99 98 E mail support network electronics com Web http www network electronics com Technical specifications are subject to be changed without notice 18 FR DWDM Rev 7 flashlink DWDM Ch166 pmux Chi5 4 sub rack 16 independent Ch14 4 channels ont Chi2 optical fiber flashlink DWDM DMUX sub rack 3 Chi1 Chi0 Ch9 Chi Ch2 Ch3 Ch4 Ch5 Ch Ch7 Ch ee P 2 w uw 16 independent channels x x optical fiber x B is S ss R el as lt uw wi MUX sub rack 1 DMUX sub rack 2 MUX sub rack 2 DMUX sub rack 1 Figure 2 9 8 8 channel bi directional DWDM system description of system and connections of the sub racks 1 2 3 and 4 Red wavelengths going from left to right blue wavelengths going from right to left Network Electronics ASA Thorgya 3204 Sandefjord Norway Tel 47 33 48 99 99 Fax 47 33 48 99 98 E mail support network electronics com Web http www network electronics com Technical specifications are subject to be changed without notice 19 FR DWDM MUX sub rack 4 MUX DMUX sub rack 3 sub rack 1 MUX sub rack 2 Ch16 Ch15 Ch14 Ch13 Ch12 Ch11 Ch10 Ch9 Chi Ch2 Ch3 Ch4 Ch5 Ch6 Ch7 Ch flashlink 16 independent channels C optical fiber flashlink
32. cocci vsiveseccccecsttesevesecccasucuaustwasusccsussusceveceaceavesscssetecdesecee snes euescouweduasewessesetasecweaveueseessaustwanuestensouas 41 OT Handing OP HEGN DOIS sain EES 4 OT TD Cr OPC ONMCCION srs Seale Baca bet iectietine Oost teade Bao Peake ademas sataetenieaueannemstathuse 42 Or DWDM DACK CT OUN A ig eE EEE EEEE AAEE E E TEE E cuts 43 OFL SO TER USSON DUG CCN enar ana E E T E E A 45 6 5 flashlink 16 channel 200GHz DWDM Wavelength Availability acc to ITU T G 694 1 46 TIR BC OCTICEAGION soo cae cunts cinves E ere rer A rarere 47 Tl TUT OGUCH OW serrin aE EET E EF DD EDDE 47 Tl BR IOP COU CONTON REREERRARRE RES ESSENS RER a a sa SERGE EET shaw Aeneas Meee aleve 49 LaF rame CONPLQUV ATION ire iE seaweed un dy pled aide aaa Seated dale ay ea dl edad denne cuit ela uulads RAE RDNS 49 SAP plc ton NOLES 5icccsesnssciunsticcadacsezccubeveccscacssaseuuaeecccdaascacsvsuvescecenscesuuwaseceveeaseadsvasevccsacaeuseseusencoeaevecuseevennes 51 5 1 3R regeneration used in a long haul connection ccccccccssecccccec ce eeeseee cena eeeeee cena eeee cece ennen eres rer nenee 5 in A YE 7703 CS RENEE SETE REE panne Medan batons E aia tae ate oranda aden carenasalataeansatuonaquneme nce son cesar as 5I Troupleshootin a oessa aea E EN 53 Declaration of conformity with CE iiscsecevssevevescaassteccdincacsdewseateaaselacediuseccsdasedevadeucccusdeautaseteuseccsdasesbeeceelecees 55 General environmental requirements for flashlink equipm
33. e the product is completely disconnected from power and signal connections All major parts are marked or labelled to show their material content Depending on the date of manufacture this product may contain lead in solder Some circuit boards may contain battery backed memory devices Network Electronics ASA Thorgya 3204 Sandefjord Norway Tel 47 33 48 99 99 Fax 47 33 48 99 98 E mail support network electronics com Web http www network electronics com Technical specifications are subject to be changed without notice 58
34. eleased Network Electronics ASA Thorgya 3204 Sandefjord Norway Tel 47 33 48 99 99 Fax 47 33 48 99 98 E mail support network electronics com Web http www network electronics com Technical specifications are subject to be changed without notice 41 FR DWDM Rev 7 6 2 Fiber optic Connector SCIPC connector protective cap ferrule 1 optical fiber Plastic housing protective coating blue ole Figure 6 1 The different parts of an SC PC Connector Protective cap and coating may have different colour The flashlink product range utilises ultra polished SC PC connectors SC UPC These connectors have a return loss of better than 40 dB typ As compared to an electrical connection between two points an optical connection is much more dependent on clean connectors A dirty connector can add up to 10 dB of attenuation to your link Either you have light entering the receiver or you have not If there is no light at the receiver then no signal will be detected So the difference between an errorless connection over fiber and no connection at all can be a dirty connector See figs 6 2 and 6 3 Therefore Clean connectors are of crucial importance Good connection Figure 6 2 Good connector connection Network Electronics ASA Thorgya 3204 Sandefjord Norway Tel 47 33 48 99 99 Fax 47 33 48 99 98 E mail support network electronics com Web http www network electronics com Technical specifications
35. ent ssscccccccccssssssssssccccccsccsssceecs 55 Product WAL PANIC eroien EEEE 56 Materials declaration and recycling information essccssssssseeeccccssssceocccssssecececoossssscececcosssssseeeessssssseeesoo 57 Materials GOCIAP ANON siccsiessscatecesacduidssssatesescaatcessusaatsestsdsd vesestuscuassecnssusuateseehawececustansessustseceslecbeassatisesesatitee 57 Environmentally friendly use Period scccccccccssssssssscccccsssssssssssscccccccsssssscscccssscsssssscsscccssscsssssssssccooses 57 IR OCY CIS 7 71 9 fj amp 7 AUION sessen a 58 Network Electronics ASA Thor ya 3204 Sandefjord Norway Tel 47 33 48 99 99 Fax 47 33 48 99 98 E mail support network electronics com Web http www network electronics com Technical specifications are subject to be changed without notice FR DWDM Rev 7 Accessories enclosed Plastic dust caps for fiber optical connectors Fiber optic patch cords for interconnection of sub rack frames 11002 termination plugs for the Gyda system controller optional Cat 5 cables for RS 422 connection to Gyda optional Network Electronics ASA Thorgya 3204 Sandefjord Norway Tel 47 33 48 99 99 Fax 47 33 48 99 98 E mail support network electronics com Web http www network electronics com Technical specifications are subject to be changed without notice FR DWDM Rev 7 Revision history The latest version 1s always available in pdf format on our web site http ww
36. er supply RS 422 control prepared for redundant power optionally DC power mixed AC DC operation See Module Options below 3R 2RU DWDM 4 Flashlink 2RU frame DWDM with both Optical Multiplexer and Demultiplexer for channels 13 to 16 Incl single power supply RS 422 control prepared for redundant power optionally DC power mixed AC DC operation See Module Options below Modules SDI TR D15xx xx Multirate Optical to Optical Transponder Optical Input 1200nm 1620nm 3dBm to 30dBm Optical Output 15xx xx nm Single Mode DWDM DFB Laser 19 4 540Mbps Additional Electrical Input and Output Supports SDI SDH Sonet DVB ASI SMPTE 310 IMR TR D15xx xx Multirate Optical to Optical Transponder Optical Input 1200nm 1620nm 3dBm to 25dBm Optical Output 15xx xx nm Single Mode DWDM DFB Laser 19 4 1485Mbps Additional Electrical Input and Output Supports SDI HD SDI SDH Sonet Gigabit Ethernet DVB ASI SMPTE 310 A Az A3 MA An di A2 AB M n r n lt q Al An Al A2A3 A An d1 2 Aa da An Figure 7 2 An EDFA is used for uni directional transport of multiple DWDM wavelengths Bi directional traffic needs one EDFA per direction Network Electronics ASA Thorgya 3204 Sandefjord Norway Tel 47 33 48 99 99 Fax 47 33 48 99 98 E mail support network electronics com Web http www network electronics com Technical specifications are subject to be changed without notice 48 FR DWDM Rev
37. et is the difference between the laser output power and the receiver sensitivity Example A 0dBm laser and a 30dBm receiver gives a transmission budget of 30 dB Which means that the signal can be attenuated by 30 dB between the laser and the receiver while still being recoverable Patch panels splices optical filters and other optical components will add attenuation to the optical link An estimate of the attenuation in the optical filters in the flashlink DWDM system is found in chapter 1 It is not recommended to use the entire available budget one should have 3 dB margin to compensate for future degradation of the optical link Network Electronics ASA Thorgya 3204 Sandefjord Norway Tel 47 33 48 99 99 Fax 47 33 48 99 98 E mail support network electronics com Web http www network electronics com Technical specifications are subject to be changed without notice 45 FR DWDM Rev 7 6 5 flashlink 16 channel 200GHz DWDM Wavelength Availability acc to ITU T G 694 1 bit T Hz nm position 196 00 1529 55 195 90 1530 33 195 80 1531 12 195 70 1531 90 195 60 1532 68 1533 47 V Ka pur O amp OD gt CD gt OD an Red wavelengths Network Electronics ASA Thor ya 3204 Sandefjord Norway Tel 47 33 48 99 99 Fax 47 33 48 99 98 E mail support network electronics com Web http www network electronics com Technical specifications are subject to be changed without notice 46
38. example of a 16 channel ADM node is shown in figure 8 2 SDI DWDM Serial Digital Video Router SDI DWDM DMUX Network VikinX VD 32x32 MUX OPTICAL INPUT OPTICAL OUTPUT 16 OUTPUT Drop Channels 16 INPUT Add Channels Figure 8 2 Example of a 16 channel ADM node consisting of a 32x32 digital video router and a 16 channel DWDM system At this node channels can be dropped from the fiber and other channels can be added to the fiber To have the maximum flexibility it 1s essential that the square digital video router has twice the size as the number of channels on the fiber otherwise it will not be possible to change all the channels on the fiber simultaneously Network Electronics ASA Thorgya 3204 Sandefjord Norway Tel 47 33 48 99 99 Fax 47 33 48 99 98 E mail support network electronics com Web http www network electronics com Technical specifications are subject to be changed without notice Sd FR DWDM Rev 7 This add drop process is done most cost efficiently in steps of 4 channels since each FR DWDM contains 4 channels Network Electronics ASA Thorgya 3204 Sandefjord Norway Tel 47 33 48 99 99 Fax 47 33 48 99 98 E mail support network electronics com Web http www network electronics com Technical specifications are subject to be changed without notice 52 FR DWDM Rev 7 Troubleshooting No green light on the power supply LED when electrical power is applied Each power supply has a se
39. heets of optical fibers have a point called minimum bend radius This means that any bending of the fiber corresponding to a bend radius less than the given value will make the light leak out of the fiber A typical value is 20 mm to 40 mm Telcordia standard for single mode fibers You should also avoid putting any heavy items on top of the optical fibers because this will change the optical properties of the fiber and contribute to errors in the transmitted signal Unless the fiber is damaged it will regain its optical properties after a bend is straightened out or the items are removed the squeeze 1s released 1 2 Laser safety precautions Guidelines to limit hazards from laser exposure All the available EO units in the flashlink range include a laser Therefore this note on laser safety should be read thoroughly The lasers emit light at wavelengths around 1550 nm This means that the human eye cannot see the beam and the blink reflex cannot protect the eye The human eye can see light between 400 nm to 700 nm Network Electronics ASA Thorgya 3204 Sandefjord Norway Tel 47 33 48 99 99 Fax 47 33 48 99 98 E mail support network electronics com Web http www network electronics com Technical specifications are subject to be changed without notice FR DWDM Rev 7 A laser beam can be harmful to the human eye depending on laser power and exposure time therefore Wi BE CAREFUL WHEN CONNECTING DISCONNECTING FIBE
40. incl R B split Max 10dB per mux demux pair incl R B split Network Electronics ASA Thorgya 3204 Sandefjord Norway Tel 47 33 48 99 99 Fax 47 33 48 99 98 E mail support network electronics com Web http www network electronics com Technical specifications are subject to be changed without notice 23 FR DWDM Rev 7 DWDM Dielectric Filter Module 4 Channel Demultiplexer 4 Channel Multiplexer Insertion loss any channel 3 0 AD including 1 connector loss Channel spacing ITU Grid 500 GHz compliant Crosstalk Adjacent channel 25 dB All other channels 35 dB Return loss 4 B 40 dB Differential channel loss 15 dB 15f dB Tx Tx directivity NA B 55 dB Notes 2 devices can be concatenated to give 8 channel capability In this case the losses for channels in the second device will incur an additional 2 0dB max due to transit through first device Red blue split bandpass filter Insertion loss of red band 15 including 1 connector loss l ooo ete including 1 connector loss Isolation from redband 10 B Isolation from blueband 20 B PRetumn los all pons a Ta Directivity OB Polarization sensitivity 01 dB Notes This device can combine two 8 channel groups to give 16 channel capability In this case the channel loss will increase with 2 1 5dB due to insertion loss of band filter Network Electronics ASA Thorgya 3204 Sandefjord N
41. ks and systems The optical filter 1s marked with the respective DWDM wavelengths The optical port must be connected to the corresponding wavelength on the channel cards otherwise the optical filter will suppress the Information running on that channel The ports are as follows C Common port 1 4 Channel wavelengths for sub rack channels 1 4 U Upgrade port The GYDA system controller card is an optional card and not part of the standard product ER ee O On fee O om re eks TNE mil IeeOce Oce Oce Oce CE Taiwork eke TWaiwork Weiwork GYDA 41312 10110 I l I Figure 2 1 Optical interconnection of a sub rack in the DWDM system In the different systems described in this chapter we only show how to connect the different sub racks together The interconnection of each sub rack is omitted in these drawings since the patching is the same as in figure 2 1 for all sub racks regardless of whether it is an Rx or Tx sub rack frame Apply signals to the different channels and connect the power cords The system will need up to two minutes to stabilise after the power has been switched on Network Electronics ASA Thor ya 3204 Sandefjord Norway Tel 47 33 48 99 99 Fax 47 33 48 99 98 E mail support network electronics com Web http www network electronics com Technical specifications are subject to be changed without notice 11 FR DWDM Rev 7 2 1 4 channel systems A 4 channel
42. ms demand much better laser wavelength accuracy and filtering characteristics than WDM systems A typical specification of centre wavelength of standard non DWDM lasers is 1550 20nm Compare this to the channel spacing in a 40 channel DWDM system of approximately 0 8 nm and the conclusion is that non DWDM lasers cannot be used for DWDM applications In DWDM systems a narrow spectrum and excellent wavelength stability is of crucial importance because only a small drift in centre wavelength of one of the DWDM lasers may distort the signal of the adjacent channel The allowed wavelength drift of the laser 1s specified in ITU T G 692 Larger wavelength drift of a DWDM laser and error free transmission of multiple SDI signals over single mode optical fiber will never occur at the same time To overcome this possible cause of error the stabilisation circuitry of the DWDM lasers as well as the PCB layout and the optical filters must be designed properly This is the only way to ensure that the signal wavelengths of the different channels will not interfere due to changes in the ambient temperature The flashlink DWDM system 1s delivered with frames in pairs A transmitter frame and a corresponding receiver frame 6 4 Transmission budget A transmission budget is an important part of planning an optical link An optical link is the place where the signals are transmitted as light through optical fiber and optical components The total transmission budg
43. n occurring events in the log file Control that the RS 422 bus is terminated with the 110Q terminator plug enclosed in the package Other requests for assistance Network Electronics ASA Thorgya 3230 Sandefjord Norway Phone 47 33 48 99 99 Fax 47 33 48 99 98 e mail support network electronics com www network electronics com Direct Service Phone 47 90 60 99 99 Network Electronics ASA Thorgya 3204 Sandefjord Norway Tel 47 33 48 99 99 Fax 47 33 48 99 98 E mail support network electronics com Web http www network electronics com Technical specifications are subject to be changed without notice 54 FR DWDM Rev Declaration of conformity with CE wif This apparatus meets the requirements of EN 55103 1 November 1996 with regard to emissions and EN 55103 2 November 1996 with regard to immunity it thereby complies with the Electromagnetic Compatibility Directive 89 336 EEC General environmental requirements for flashlink equipment 1 The equipment will meet the guaranteed performance specification under the following environmental conditions e Operating room temperature range 0 C to 40 C e Operating relative humidity range up to 90 non condensing 2 Electromagnetic compatibility conditions e Emissions EN 55103 1 Directive 89 336 EEC e Immunity EN 55103 2 Directive 89 336 EEC Network Electronics ASA Thorgya 3204 Sandefjord Norway Tel 47 33 48 99 99 Fax 47 33 48 99 98 E mail su
44. n on fiber optics can be found on our web site http www network electronics com 6 3 DWDM background DWDM is a multiplexing technique to increase the bandwidth on a single mode optical fiber enabling simultaneous transport of several different signals on one fiber The all optical multiplexing technique is format as well as protocol independent enabling transport of different signal formats on different wavelengths at the same time The forerunner of DWDM Wavelength Division Multiplexing WDM enabled transmission of two signals one in the second optical window around 1310nm and the other in the third optical window around 1550nm The first optical window around 850nm is used for very short range multi mode fiber links The principle of WDM is shown in figure 6 4 a Two channels are transmitted in the same fiber one in each optical window hence doubling the capacity of the optical fiber A DWDM solution can reach longer distances than a WDM solution because the attenuation in optical fibers is higher in the Network Electronics ASA Thorgya 3204 Sandefjord Norway Tel 47 33 48 99 99 Fax 47 33 48 99 98 E mail support network electronics com Web http www network electronics com Technical specifications are subject to be changed without notice 43 FR DWDM Rev 7 second window than in the third window DWDM utilises only the third window with lower attenuation and is therefore capable of reaching longer distances than st
45. ording to ITU T G 694 1 for 32 and 40 ch systems 38 of 56 55 54 53 52 51 50 196 00 195 90 195 80 195 70 195 60 195 50 1529 55 1530 33 1531 12 1531 90 1532 68 1533 47 1534 25 1542 14 1542 94 1543 73 1544 53 1545 32 1546 12 1546 92 1547 72 1548 51 1549 32 1550 12 1550 92 1551 72 155252 1553 33 1554 13 1554 94 1555 75 1556 55 1557 36 1558 17 1558 98 1559 79 1560 61 XK XK KK KK X XK XK XK XK XK XX X X XK XK XK XK XK XK X XK XK XK XK XK XK XK X X XK XK XK XK XK X X X XK XK XK XK XK XK X XK XKX XK XK XK XK XK XK XK XK X X XK X XK XK XK XK XK K X X X fl THz nm Blue wavelengths Red wavelengths Network Electronics ASA Thor ya 3204 Sandefjord Norway Tel 47 33 48 99 99 Fax 47 33 48 99 98 E mail support network electronics com Web http www network electronics com Technical specifications are subject to be changed without notice 27 FR DWDM Rev 7 3 5 Connection drawing Figure 1 shows the connections of an FR DWDM sub rack frame as seen from the rear From left to right we see the connector module for the power supply the connector module for the optional GYDA Rack System Controller the connector modules for the 4 channels and the connector modules for the optical filtering of the different channels Figure 3 1 Example of fully equipped FR DWDM with the Gyda Rack System Controller 3 6 Module card LEDs The uppermost LED of each module card i
46. orway Tel 47 33 48 99 99 Fax 47 33 48 99 98 E mail support network electronics com Web http www network electronics com Technical specifications are subject to be changed without notice 24 FR DWDM Rev 7 Channel overview The channel wavelengths are specified in a recommendation from the International Telecommunications Union ITU called ITU T G 694 1 The channel spacing in the 16 ch system is 200GHz whereas the channel spacing within each sub rack is 400GHz Sub rack I Sub rack 2 Channel TU channel Wavelength Channel TU channel Wavelength Channel 35 1549 32nm Channel 33 1550 92nm 2 Channel 31 1552 52nm 6 Channel 29 1554 13nm 3 Channel 27 1555 75nm Channel 25 1557 36nm 4 Channel 23 Channel 21 Sub rack 3 Sub rack 4 Channel 10 11 Channel 51 1536 61nm Channel 49 1538 19nm 12 Channel 47 1539 77nm Channel 45 1541 35nm Supported bit rates Broadcast 143 Mbps Digital NTSC 177 Mbps Digital PAL 270 Mbps SDI 360 Mbps SDI 540 Mbps SDI 1485 Mbps HD SDI DVB ASI SDTI Embedded AES and Data SMPTE 310 M2S Divicom Telecom e 140 Mbps E4 e 155 Mbps STM 1 OC 3c Datacom e RS 422 e 100 Mbps Fast Ethernet e 1250 Mbps Gigabit Ethernet Network Electronics ASA Thorgya 3204 Sandefjord Norway Tel 47 33 48 99 99 Fax 47 33 48 99 98 E mail support network electronics com Web http www network electronics com Technical specifications are subject to
47. ottom for cold air intake IRU for a fan after 4 frames with an additional IRU above for cold air intake for the 4 uppermost frames Cold air intake 10RU 5x flashlink DWDM frames Cold air intake Network Electronics ASA Thorgya 3204 Sandefjord Norway Tel 47 33 48 99 99 Fax 47 33 48 99 98 E mail support network electronics com Web http www network electronics com Technical specifications are subject to be changed without notice FR DWDM Rev 7 2RU flashlink DWDM filter frame 10RU 5x flashlink DWDM frames IRU Cold air intake The operational temperature for the DWDM system is 0 40 C 1 5 Warranty Statement The following warranty terms and conditions shall apply to all products manufactured by Network Electronics Guarantee Network Electronics guarantees the good quality of the goods supplied for the period started or when no period is started for a period of three 3 years as from the date from which they have been put in use but in no event for more than forty 40 months as from the date of despatch against all defects or failures which appear therein under proper use and arise solely from faulty materials or workmanship is being understood that Such guarantee does not cover damage sustained by normal wear or tear or any damage arising in consequence of negligence or improper use and storage Such guarantee shall not include any items to which a specific manufacturer s guarantee applies
48. panel we reverse the process described in section 5 1 Start by switching on the power supplies network Flashlink Left circle Right circle Figure 5 8 Attaching the front panel We start in the left circle and slide the front into the slot as described in figure 5 9 Network Electronics ASA Thorgya 3204 Sandefjord Norway Tel 47 33 48 99 99 Fax 47 33 48 99 98 E mail support network electronics com Web http www network electronics com Technical specifications are subject to be changed without notice 39 FR DWDM Rev 7 Step 2 Step 3 Figure 5 9 Attaching the front panel Top view of front left corner After the front is attached to the left part of the sub rack we attach in to the right part as shown in figure 5 10 ATTACHING THE FRONT PANEL Push here 5 Push here 5 Right side view Front panel red Figure 5 10 Attaching the front panel continued A click sounds and the front is attached Network Electronics ASA Thor ya 3204 Sandefjord Norway Tel 47 33 48 99 99 Fax 47 33 48 99 98 E mail support network electronics com Web http www network electronics com Technical specifications are subject to be changed without notice 40 FR DWDM Rev 7 6 Fiber optics The FR DWDM houses fiberoptic equipment Even though a fiberoptic cable can look almost the same as an electrical wire special care must be taken Inside the cable is a fiber made of glass
49. parate on off switch for the secondary side of the power supply This is found on the power supply board behind the front panel Remove the front panel as described in chapter 5 and make sure that the power switch is down If power is fed to the sub rack the LED in front shall be green Only one of the redundant power supplies has the green LED lit in front Remove the front panel and make sure that both power supplies have the power switch down and that electrical power is fed to both power supplies on the back planes If this does not help try to swap the positions of the power supplies If the same power supply still 1s not lit it must be replaced If the power supply in the same position as before the swap still does not have a lit LED the power supplied to the back plane is faulty One channel wavelength has significantly less power at the receiver end Clean the optical connectors of that particular channel as described in chapter 6 Both the connectors on the receiver side as well as on the transmitter side must be cleaned Make sure that all connectors are correctly aligned the white line on top of the SC connector shall not be visible A bad or dirty connection may introduce an extra 10dB of loss One of the channels is not present at the receiver end a Clean the optical connectors of that channel b The optical fiber might be damaged Replace the patch cord with another cord of type SC UPC SC UPC single mode fiber c You may
50. pport network electronics com Web http www network electronics com Technical specifications are subject to be changed without notice 55 FR DWDM Rev 7 Product Warranty The warranty terms and conditions for the product s covered by this manual follow the General Sales Conditions by Network Electronics ASA These conditions are available on the company web site of Network Electronics ASA www network electronics com Network Electronics ASA Thorgya 3204 Sandefjord Norway Tel 47 33 48 99 99 Fax 47 33 48 99 98 E mail support network electronics com Web http www network electronics com Technical specifications are subject to be changed without notice 56 FR DWDM Rev 7 Materials declaration and recycling information Materials declaration For product sold into China after Ist March 2007 we comply with the Administrative Measure on the Control of Pollution by Electronic Information Products In the first stage of this legislation content of six hazardous materials has to be declared The table below shows the required information Toxic or hazardous substances and elements AREE Fin K AU SIKKE SK R Part Name Lead Mercury Cadmium Hexavalen Polybrominate Polybrominate Pb Hg t d biphenyls d diphenyl Chromium PBB ethers Cr VI PBDE O Indicates that this toxic or hazardous substance contained in all of the homogeneous materials for this part is below the limit requirement in SJ
51. s a general status LED Green light means that the card is OK Red light means that the card 1s faulty No light means that the power is not switched on The meaning of each LED on the module cards is described in their respective user manuals Positions 1 5 in the system have only passive modules without LEDs for the 16 ch system Network Electronics ASA Thorgya 3204 Sandefjord Norway Tel 47 33 48 99 99 Fax 47 33 48 99 98 E mail support network electronics com Web http www network electronics com Technical specifications are subject to be changed without notice 28 FR DWDM Rev 7 4 Power connection and RS 422 connection Figure 4 1 shows the power connections of the sub rack as well as the RS 422 connections and the DIP switches for address setting of the sub rack 100 240UAac 100 240UAC f0 40 Hz 50 40 Hz ACL HAX 3 5A ACE MAk 3 S i Figure 4 1 Connector module for the power module AC Connect mains to the sub rack with a mains cord with an IEC 320 connector DC Connect the DB9 male connector from the external DC power supply to the main unit Tighten the screws to ensure a proper contact The DC inputs have the same function the left input DC1 is for the left power module when seen from the rear and DC2 is for the right power module when seen from the rear 4 1 Pin out DB9Y The maximum current drawn from each pin of the DB9 connector is 2 5A The power supply is able to deliver an overall
52. site http www network electronics com Addressing Each card has a unique identifier called card position which 1s assigned trough hardware pinning automatically when a card is inserted into a sub rack The card positions are numbered from to 10 from a user point of view From a protocol or software point of view the cards are addressed 0 9 but the user should always see positions 1 10 in menus etc Each sub rack if you use more than one should have a unique sub rack id numbered 0 7 user and protocol software wise more on this in section 4 6 4 5 Connecting several sub racks together There are two versions of the GYDA SC Rack System Controller GYDA SC S for control of a single rack GYDA SC M for control of multiple racks This section only applies to systems including a GYDA SC M Rack System Controller Several sub racks can be connected to each other through the RS 422 ports on the rear One GYDA SC M controller can control maximum 8 sub racks You start with the sub rack containing the GYDA SC M Rack System Controller and use 1 RS 422 port to loop through to the next The last sub rack connected must be terminated with 110Q in order to ensure proper operation The other port of the rack containing the GYDA SC Rack System Controller must be left open and cannot be connected to other sub racks Figure 4 4 shows an example of how to connect 8 sub racks together as seen from the rear end Network Electronics A
53. t panel is detached is given in figure 5 2 Step 1 looks at the details in the right circle seen from the right hand side whereas the next two steps step 2 and step 3 give the details of the left circle as seen from the top Network Electronics ASA Thorgya 3204 Sandefjord Norway Tel 47 33 48 99 99 Fax 47 33 48 99 98 E mail support network electronics com Web http www network electronics com Technical specifications are subject to be changed without notice 34 FR DWDM Rev 7 DETACHING THE FRONT PANEL _ I n _7 Right side view f t step 1 1 Full here Front panel red Top view of front left corner enlarged Figure 5 2 Removing the front panel continued Network Electronics ASA Thorgya 3204 Sandefjord Norway Tel 47 33 48 99 99 Fax 47 33 48 99 98 E mail support network electronics com Web http www network electronics com Technical specifications are subject to be changed without notice 35 FR DWDM Rev 7 5 2 Card insertion After the front panel is removed full access to the card modules inside the sub rack is given Switch off the power with the power switch on the power supply modules The green light on the power module is now switched off If the power supply is redundant make sure that both power supplies are off The sub racks are equipped with plastic guide rails to align the module cards into their respective positions 6 to 10 Just before the cards are
54. t will heat the inside of the package to keep the internal temperature constant The quantity of heat absorbed or produced is proportional to the current flowing through the contact In practical terms this means that the current 1s proportional to the temperature difference between the ambient temperature and the desired temperature within the laser package If the ambient temperature is lower than the package temperature the power dissipated will support the heating process of the device by increasing the ambient temperature On the other hand if the ambient temperature is much higher than the desired package temperature about 22 C it may cause the laser to malfunction The current which is proportional to the temperature difference implies power dissipation and an increase of the ambient temperature This increased ambient temperature will again increase the current through the Peltier element in order to lower the internal package temperature The increased current will make more power dissipate thereby increasing the ambient temperature and so on To avoid this proper ventilation of the DWDM system is needed In the case of a 16 channel installation a fan must be installed above the uppermost sub rack frame Below the lowest sub rack frame it is recommended to have 1RU of free space to ensure good airflow through the sub rack frames A32 channel system needs 18RU of rack space Additional rack space needed for ventilation is IRU at the b
55. tem to be controlled with the possibility to control another 16 channel system located at the same place On the rear end of the sub rack are DIP switches where each sub rack can be assigned its own address see figure 4 1 The RS 422 interfaces are also shown in figure 4 1 4 3 Pin out RS 422 Pin 1 Pin 2 Pin 3 Pin 4 Pin 5 Pin 6 Pin 7 Pin 8 Rx A Rx B Tx A Reserved Reserved Tx B nc nc Green lt Pair 3 W Fig 4 3 RS 422 inlet Network Electronics ASA Thor ya 3204 Sandefjord Norway Tel 47 33 48 99 99 Fax 47 33 48 99 98 E mail support network electronics com Web http www network electronics com Technical specifications are subject to be changed without notice 30 FR DWDM Rev 7 4 4 RS 422 protocol Hardware interface The hardware interface is basically RS 422 A serial communication standard much like RS 232 but with balanced lines You can buy a simple RS 232 to RS 422 converter if you want to use a standard RS 232 port e g a PC COM port The receive and transmit lines can be connected to make a true RS 485 bus but this requires special care from the PC side since you have to control the bus direction e g using a dedicated RS 485 board with RS 485 drivers We recommend using RS 422 for control Data rate 115200 bps 8 bits with one stop bit and no parity All data is 8 bit ASCH ISO8859 1 encoding but currently any ASCII encoding will do The protocol can be found on our web
56. uct a more economically viable solution than the erbium doped fiber amplifier EDFA An EDFA solution needs each direction to be amplified separately whereas the 3R solution allows for bi directional traffic on the same fiber Using the MR TR cards to execute steps 2 to 4 above gives a very good flexibility in signal formats All digital broadcast formats are supported as well as the popular telecom and datacom formats Network Electronics ASA Thorgya 3204 Sandefjord Norway Tel 47 33 48 99 99 Fax 47 33 48 99 98 E mail support network electronics com Web http www network electronics com Technical specifications are subject to be changed without notice 47 FR DWDM Rev 7 The 3R product family consists of the following frames with modules fitted into the frames according to system demands Frames 3R 2RU DWDM 1_ Flashlink 2RU frame DWDM with both Optical Multiplexer and Demultiplexer for channels 1 to 4 Incl single power supply RS 422 control prepared for redundant power optionally DC power mixed AC DC operation See Module Options below 3R 2RU DWDM 2_ Flashlink 2RU frame DWDM with both Optical Multiplexer and Demultiplexer for channels 5 to 8 Incl single power supply RS 422 control prepared for redundant power optionally DC power mixed AC DC operation See Module Options below 3R 2RU DWDM 3 Flashlink 2RU frame DWDM with both Optical Multiplexer and Demultiplexer for channels 9 to 12 Incl single pow
57. w network electronics com Current revision of this document is the uppermost in the table below FREE RER ol foo 01 07 19 RS Added specification on optical filters and optical input 0 D 01 05 14RS Added possibility for 2 2 channel system separated C 01 04 04 RS SDI and Telecom into separate part numbers added note on power dissipation pc BO 01 03 27 RS Changed specification B A 01 02 15 RS Corrected specification Network Electronics ASA Thorgya 3204 Sandefjord Norway Tel 47 33 48 99 99 Fax 47 33 48 99 98 E mail support network electronics com Web http www network electronics com Technical specifications are subject to be changed without notice FR DWDM Rev 7 1 General information 1 1 Handling of optical fibers This product includes fiber optic equipment Access to the optical signal path is given through the optical connectors see separate chapter Even though a fiber optic cable can look almost the same as an electrical wire special care must be taken Inside the cable is a fiber made of glass Glass has very different physical properties than the copper used in electrical wires In practical terms this means that these precautions must be taken e Do not bend the fiber too much e Do not put anything on top of the optical fiber e Keep the connectors clean from dust If a fiber 1s bent to much parts of the transmitted light is lost or in worst case the glass is broken All the datas
58. work Electronics ASA Thorgya 3204 Sandefjord Norway Tel 47 33 48 99 99 Fax 47 33 48 99 98 E mail support network electronics com Web http www network electronics com Technical specifications are subject to be changed without notice 2 FR DWDM 3 1 Specifications for 16 ch system Rev 7 AC power AC power supply module 100 260 VAC PWR AC15 15 S5V DC power optional DC power supply module 36 72 VDC PWR DC15 15 S5V Redundant power optional Dimensions 483 x 88 x 178 mm 19 2RU Card slots 10 9 reserved Power supply slots reserved 2 Internal voltages 5V 15V 15 V Optical Output Transmission circuit fiber Single Mode Light source DFB Laser Wavelength Acc to ITU T G 692 see separate chapter Optical power 0 dBm typ Return loss Better than 30 dB typ Maximum reflected power 4 Connector SC UPC Optical Input Data rate optical Sensitivity SDI OE L Maximum input power SDI OE L Detector overload threshold Optical wavelengths Transmission Circuit Fiber Return loss Connector Insertion loss all optical filters included 4 channel system 8 channel system 12 channel system 16 channel system 143Mbps 540Mbps better than 30dBm typ 17 dBm min 6dBm typ 3dBm 1200 1600 nm Multi Mode 50 125um Single Mode compatible better than 40 dB w Single Mode fiber typ SC UPC Max 6dB per mux demux pair Max 8dB per mux demux pair Max 10dB per mux demux pair

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