FR202/-RP
Contents
1. eyes never look directly into the frame unless you are 100 sure that no laser beam is present inside the frame r A A A A A A A A A A o nevion z pio pa A A on Ome O UA y roy Mm bd N Figure 24 Card removal nevion com 21 FR 2RU 20 2 Rev 5 5 PSU insertion Figure 25 PSU insertion The outer left and outer right positions are allocated for PSUs With exception for the lacking card handle the procedure for mounting is similar to main module insertion procedure In a non redundant configuration any PSU position may be used 5 6 PSU removal To remove a PSU from the frame push the spring loaded card lock downwards Be aware of the PSU connecior release force Then simultaneously with the other hand move the metal handle from vertical to nearly horizontal position and pull the PSU entirely out of the rack nevion com 22 FR 2RU 20 2 Rev 5 7 Attaching the front panel To attach the front panel we invert the process described in section 5 1 Start by switching on the power supplies Then move the front to upright position and push it carefully into the frame until it stops When correctly mounted both LEDs at the fan front will go through a short start up sequence before they both provide stable light Figure 27 Attaching the front panel nevion com 23 FR 2RU 20 2 Rev 5 8 Frame status LEDs PSU status is presented in the following ways2. to the frame via the Sync in BNC connector Which Flashlink modules that can utilize the sync signal is described in user manual for the actual modules While sync is applied the sync termination switch must be switched to on upper position nevion com 14 FR 2RU 20 2 Rev 5 Frame operation In order to reconfigure or expand the number of modules within a frame the front panel must be removed Each module has a corresponding connector module at the rear and is hot swappable Use safety goggles when hot swapping module cards lf a receiver card is removed from the frame an invisible laser beam may be emitted inside the frame from the laser at the other end The laser beam might be harmful to your eyes 5 1 Removing the front panel Pull here Pull here Left circle Right circle Figure 11 Removing the front panel nevion com 15 FR 2RU 20 2 Rev Figure 12 Removing the front panel continued 5 2 Backplane insertion Before installing a new Flashlink main module the accompanying back plane must be mounted Switch off the power supply The LED on the power module is then off With a redundant solution make sure that both power supplies are switched off Remove all screws holding the back plane to be replaced Remove the backplane by lifting it straight out from the rear of the frame The backplanes with an optical interface have a rubber plug inside each fiber adapter to
3. 22 RJ45 Pin 1 Rx A Pin 2 Rx B Pin 3 Tx A Pin 4 Reserved Pin 5 Reserved Pin 6 Tx B Pin 7 Not Connected Pin 8 Not Connected Figure 8 RS 422 pin out nevion com 12 FR 2RU 20 2 Rev 4 3 2 Connecting several frames together Several frames can be connected to each other through the RS 422 ports on the rear of each frame One GYDA SC controller can control maximum 8 frames You start with the frame containing the GYDA SC Rack System Controller and use 1 RS 422 port to loop through to the next The last frame connected must be terminated with 1102 in order to ensure proper operation The other port of the rack containing the GYDA SC controller must be left open and cannot be connected to other frames Figure 5 shows an example of how to connect 8 frames together as seen from the rear end By using the RS 422 interface at the GYDA SC controller card we control 8 frames via one RS 422 bus Multicon oo o NC Frame 1 9 mets E 1100hm i termination OE Figure 9 Control of 8 frames with GYDA SC The 1104 termination plug used is a standard RJ45 plug with the following internal wiring Ore TT TTT w 1236 LJ LI Figure 10 RS 422 termination In the figure above Pin 1 is connected to Pin 2 with a 11009 resistor and Pin 3 is connected to Pin 6 with a 1100 resistor nevion com 13 FR 2RU 20 2 Rev 4 4 Sync input output An analog sync signal may be applied
4. 4 for further details Heat dissipation The heat dissipation is based on convection as well as cooling by fans and it is therefore very important not to block the warm air exhaust perforations in the chassis nevion com 5 FR 2RU 20 2 Rev A 2 Specifications 2 1 General specifications AC Power PWR AC 160W AC power supply module 100 240VAC Redundant Power PWR AC 160W optional Dimensions 19 width 2RU height Card slots 20 for Flashlink modules 1 allocated for a possible future board Power Supply slots 2 Internal voltages 5V 15V 15V Sync Return loss typical lt 14dB 0 5MHz dependent of the quality of the termination at Power C5 GPI Open drain output from each power supply which turns low ohmic in an alarm situation To withstand 10VDC open and 100mADC at less than 50mOhm closed 2 2 Front view The front view of the frame shows status LEDs for the power supply modules Figure 1 Front view of the Flashlink frame The two LEDs at the front have the following functions Upper LED Voltage and current alarm internal voltages Lower LED Fan and temperature alarm nevion com 6 FR 2RU 20 2 Rev 2 3 Rear view Figure 2 shows an example of a fully equipped Flashlink frame seen from the rear side The outer left and outer right modules are backplanes for the power supplies and contain connections as follows Left backplane o IEC C14 AC mains inlet o BNC sync in Rig
5. FE Symbol Green LED Yellow LED Red LED No LED PSU module none Power is OK Voltage or Power current alarm off Frame front 1 Power is OK Communication Voltage or Power problem with current alarm off nevIon fan front Temperature Communication Temperature Power fans are OK problem with fans alarm off fan front Lack of communication with PSU in non RP mode or one of the PSU s in RP mode In both situations the fans will have permanent maximum speed kk PSU in non RP mode or both of the PSU s in RP mode 5 8 1 Multicon Multicon GUI which presents the following information o Measured voltages o Measured currents at each frame voltage o Total provided power o Internal PSU temperature o Alarm status for voltages currents total provided power temperature Defect fan Flashlink Power Supply 160W AC 5V internal 5 00 V 15V Flashlink 15 30 V 15 0 V 0 19A 8 7 A 2 88 W 130 0 W 5V Flashlink 52T V 5 2 V 0 00 A 20 0 A 0 00 W 100 0 W 15V Flashlink 16 03 V 15 0 V 0 00 A 2 0 A 0 00 W 30 0 W Total power 2 88 W 130 0 W Temperature i E Figure 28 Example of PSU interface in Multicon GP o See description in chapter GPI Power Supply Status outputs nevion com 24 FR 2RU 20 2 Rev A 5 9 Fans 5 9 1 Fan operation The fans at the front provide sufficient cooling for modules and power supplies in every allowed load situation Their speed is co
6. IN sa be SERRREEE INAS LAGNI SNLYLS Figure 22 Inserting module cards continued Slide the card into the plastic guide rails inside the frame by pushing at the card edge until the rear edge of the card is locked by the card lock at the end of the card rail Then push the card handle into vertical position See sketches below for detailed description SA ee SNLYLS e in pad O ul mr oS 3 a un T pa DU r m on Card locking clip TO a am am ly i A a i a iy i si Ss A T B B B gt SE SS LL A a e e e e e e e e e e eee eee ee X Figure 23 Inserting module cards continued Make sure that the connector on the module card fits with the connector on the back plane card when inserting a new module card for the first time It should not be necessary to use any force when entering the module card into the accompanying back plane connector nevion com 20 FR 2RU 20 2 Rev 5 4 Card removal To remove a module from the frame push the spring loaded card lock downwards and below the lower edge of the card Then simultaneously with the other hand move the card handle from vertical to nearly horizontal position and pull the card entirely out of the rack When removing a receiver card from the frame hot swapping the laser beam may be present inside the frame transmitted through the fiber To avoid damaging your
7. NeVISN FR202 RP Flashlink 2RU frame User manual Rev A FR 2RU 20 2 Rev Nevion Support Nevion Europe Nevion USA P O Box 1020 1600 Emerson Avenue 3204 Sandefjord Norway Oxnard CA 93033 USA Support phone 1 47 33 48 99 97 Toll free North America 866 515 0811 Support phone 2 47 90 60 99 99 Outside North America 1 805 247 8560 E mail support nevion com See http www nevion com support for service hours for customer support globally Revision history Current revision of this document is the uppermost in the table below Rev Repl Date Sign Changedescription__________ PASO IESO IESO IES PO IESO OO E ERE II II PS E O A OOOO IESO IES E BE OOOO IESO ISS E EEN PE E A A A A ee A 2014 12 03 MR Initial release nevion com 2 FR 2RU 20 2 Rev Contents PIC VISIONING OMY ura ak abel Ra aia ERE iaa tibia 2 1 PEOQUCIOVEIVIEW e sener iaa cita ie er eder 5 2 ODECE ONS rre 6 2 1 General specticatlonS ni idas 6 A A A A A DENRRETE LER 6 AS VOW A o o o o O EE O e ne Eee EET 7 24 FOWer CONSUMO da 8 S COMON sosna pe As 9 3 1 Address setting on each fraMe occoocnccccncccnccncnoconnnnnncnnnnonannnnnnonnnnnnnnonnnnnnnnnonnnenrnnnannnos 9 3 2 PSU redundancy mode Selection rimsi senesni aa ieia 10 A COMIN SCHON S oTe T E A E TE 11 4 POW El COMMCCUON erap EAR EAER 11 4 2 GPI Power Supply Status outputs occcccoccccccccnccncnnconcncnnnnnonncnonnnnnnnncnonnnnnnnnnnonannnnnncn
8. ccccnccccccncccnncconcnonncnnonnnnnnncnnnnnnnnnncnonnnnnonnrnnnnnnnonacinnos 30 OH TACHONCOMMIANG AAA SS 30 EAR SEA alre re ON HERRE SE SEN SREN RE ENES TNRESAR SENERE DN BESESBEDR ESKE sana nan aan tama anes ESSENSEN TEE ENE 30 PROGUGU VV QUIN ro E E E 32 nevion com 3 FR 2RU 20 2 Rev Appendix A Materials declaration and recycling information senere 33 Aicl Materials declarara ass 33 AZ REO YCIna JIL ORMAUION lll 33 nevion com 4 FR 2RU 20 2 Rev 1 Product overview The FR202 RP frame is a compact frame providing space for up to 20 Flashlink modules in addition to two fixed positions for power supply modules and one fixed position for a possible future control board The frame features maximum flexibility as every module comes with a dedicated back plane module which takes up n x 7TE spacing The 3 5TE distance between card positions opens for connection of two Flashlink modules to one 7TE backplane The number of backplanes with 3 5TE module distance utilizing all 20 positions is currently limited but will be expanded in the future Each frame can be controlled by a Multicon System Controller card together with up to 7 other frames The sync function makes it possible to provide a common sync signal to all card positions Power consumption The current draw in the Flashlink frame is limited by the power supplies Overloading the power supplies will cause the power units to malfunction Please read chapter 2
9. command response Byte n 1 Linefeed 10 decimal 0x0A hex If the command or command response contains a line feed it is preceded by a backslash 7 5 Card detection hot swap The controller must send a hello command to gain control over a board this is to make sure that the control software is aware of any card changes After a power up or hot swap the card does not respond to any other command than hello nevion com 28 FR 2RU 20 2 Rev 7 6 Hello command This command establishes communication with a new unit An example of communication with SDI EO and SDI OE is shown in the following The command is short a single question mark to save bandwidth The card will respond with card info If the card is not present the command times out A typical response would be 0409 0904E0 SDI 1310nm 7 5dBm hw rev 1 0 sw rev 1 0 protocol ver 1 0 This is an electrical to optical converter for SDI with a 7 5dBm 1310nm laser The hardware revision is ver 1 0 and the software version is ver 1 0 The protocol version is 1 0 7 7 Electrical to optical converters 7 7 1 Hello command An EO converter will respond to a hello command with 0409 0904E0 SDI 1310nm 7 5dBm hw rev 1 0 sw rev 1 0 protocol ver 1 0 or 0409 0904E0O T140 1310nm 7 5dBm hw rev 1 0 sw rev 1 0 protocol ver 1 0 7 7 2 Info command The card will respond to the command string info by sending the card status This is a typica
10. d conditions for the product s covered by this manual follow the General Sales Conditions by Nevion which are available on the company web site www nevion com nevion com 32 FR 2RU 20 2 Rev A Appendix A Materials declaration and recycling information A 1 Materials declaration For product sold into China after 1st 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 HRE R A KR 5 AVLE SRA SR XR Part Name Lead Mercury Cadmium Hexavalent Polybrominated Polybrominated Pb Hg Cd Chromium biphenyls diphenyl ethers Cr VI PBB PBDE sue o o o o o oe lt Power supply if delivered with unit gt 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 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 This Is indicated by the product marking A 2 Recycling information Nevion provides assistance to customers and recyclers through our web site http www nevion com Please contact Nevion s Customer Support
11. for assistance with recycling if this site does not show the information you require Where it is not possible to return the product to Nevion or its agents for recycling the following general information may be of assistance Before attempting disassembly ensure the product is completely disconnected from power and signal connections All major parts are marked or labeled 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 nevion com 33
12. guration 3 1 Address setting on each frame Each frame can be assigned an address through the rotary switches on the rear Maximum 8 frame addresses 0 7 are available this means that pos 8 and 9 on the rotary switch are not valid This address setting only applies when the frame is used in combination with a GYDA SC Rack System Controller lf you have more than 8 frames together you need several GYDA SC Rack System Controller cards In order to ensure proper operation of the system it is important that no frames controlled by the same GYDA SC Rack System Controller card have the same address set Reset the frame after reconfiguring the frame system by turning the power off and on again 18 9 AE Djo Valid positions 0 7 Z N e A Figure 4 Rotary switch More detailed information on the RS 422 configuration can be found in a separate document and at our web site http www nevion com nevion com 9 FR 2RU 20 2 Rev 3 2 PSU redundancy mode selection The frame comes equipped with a jumper mounted at the programming header at the Fanboard Depending on the desired mode the jumper shall be mounted as described in the figure below JUMPI1 Jl Front view PCB Fig 1 Redundant power supply solution J1 JUMP Front view ap PCB Fig 2 Non redundant power supply solution Figure 5 Location of jumper for redundancy mode selection nevion com 10 FR 2RU 20 2 Rev 4 Connecti
13. ht backplane o IEC C14 AC mains inlet o BNC sync out o 2pcs RJ 45 for RS 422 in out o Rotary switch for programming frame number to be read by Multicon o 4pin connector GPI out The other connector modules are described in their respective user manuals Figure 2 Illustration of fully equipped Flashlink frame Figure 3 Flashlink frame equipped with blanks nevion com 7 FR 2RU 20 2 Rev 2 4 Power consumption The current draw in the Flashlink frame is limited by the power supplies Overloading the power supplies will cause them to malfunction The power and current limits for the frame even with two active power supplies are as follows Total 130W Remaining available 30W up to 160W is dedicated for Fanboard and fans 5V 20A 15V 8 7A 15V 2A The power consumption can be drawn from the three voltages in any combination though not exceeding 130W in total The sum of power for all cards on each rail must not be higher than the above listed limits The power consumption for each of the power supply rails is found in the user manual for each Flashlink card as this is not the same for all Flashlink cards Remark The power supplies support load sharing giving them extended life time Though the total potential power supply capacity is actually doubled in a redundant coupling the above listed maximum power limits for the frame shall never be exceeded nevion com 8 FR 2RU 20 2 Rev 3 Confi
14. l example 0409info 0904laser on SDI signal strength 81 vec 5 04 Vi laser fail no nevion com 29 FR 2RU 20 2 Rev 7 8 Optical to electrical converters 7 8 1 Hello command An OE converter will respond to a hello command with 0409 09040E SDI reclocking not calibrated hw rev 1 0 sw rev 1 0 protocol ver 1 0 or 0409 09040E T140 reclocking not calibrated hw rev 1 0 sw rev 1 0 protocol ver 1 0 Not calibrated refers to the optical power measurement which is not calibrated 7 8 2 Info command The card will respond to the command string info by sending the card status This is a typical example 0409info 0904signal 12 2 dBm optical signal yes reclocker locked yes vcc 4 97V Note that since the optical signal strength is not calibrated the measurement will be wrong typ 5 dB nevion com 30 FR 2RU 20 2 Rev General environmental requirements for Flashlink equipment 1 The equipment will meet the guaranteed performance specification under the following environmental conditions Operating room temperature range 0 C to 45 C Operating relative humidity range lt 90 non condensing 2 The equipment will operate without damage under the following environmental conditions Temperature range 10 C to 55 C Relative humidity range lt 95 non condensing nevion com 31 FR 2RU 20 2 Rev Product Warranty The warranty terms an
15. n Switch off the power with the power switch at the power supply modules The green light at the power module is now switched off If the power supply is redundant make sure that both power supplies are off The frames are equipped with plastic guide rails to align the module cards into their respective positions 1 to 20 Just before a card is inserted one should remove the plastic cap from the fiber ferrule as shown in figure 11 Do not touch the ferrule tip with your fingers see chapter Error Reference source not found fig 21 Remove plastic cap before inserting module cards nevion Figure 17 Removal of plastic cap Figure 18 Open frame nevion com 18 FR 2RU 20 2 Rev SUB RACK SEEN FROM THE FRONT WITH THE FRONT PANEL REMOVED an Make sure cards enter plastic guide rails both top and bottom properly before sliding the cards into the sub rack y yo kun O yo vw km ep nm Assigned slot for 20pcs slots for Flashlink modules Notused Assigned slot for power supply power supply Figure 19 Overview of card positions inside a frame Be careful when inserting the card into the frame The ferrule of the fiber may be damaged if it touches the frame walls Do not touch the ferrule tip with your fingers Figure 20 Marking of main module locations Figure 21 Inserting module cards nevion com 19 FR 2RU 20 2 Rev Ys ze S3N
16. n connecting disconnecting fiber pigtails ends Never look directly into the pigtail of the laser fiber Never use microscopes magnifying glasses or eye loupes to look into a fiber end Use laser safety goggles blocking light between 1270 nm and at 1610 nm Instruments exist to verify light output power Power meters IR cards etc Dette er vel ikke helt oppdatert Flashlink features The FR202 RP 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 FR202 RP is classified as Class 1 laser product according to EN 60 825 1 94 A11 96 and class Illb according to CFR Ch1 1997 Part 1040 10 Sjekk angaende denne spec Maximum output power 5 mW Egentlig 10mW7 Operating wavelengths 1270 to 1610 nm Figure 29 Laser class label nevion com 26 FR 2RU 20 2 Rev A 6 2 Handling of optical fibers When handling fiber optical cables and interconnections these precautions must be taken to ensure reliable operation Do not bend the fiber too much all fiber optical cables have a minimum bend radius Follow manufactures datasheet recommendation for each cable or use 40 mm as a general guideline Donot apply excessive mechanical stress on the fiber optical cables or connectors Keep the connectors clean from dust Good practice is to clean the ferrule each time a new connection is made between two optical connectors Alway
17. nnos 11 AS no LEA COMEN de ts le a o ade OO 12 A A O er eres aie he ane 12 4 3 2 Connecting several frames tOgether coooccccccnnccoccnccccnnconcnocnnnnnnncnonnnnnnnnnnonannnnnncnnnos 13 A A 14 Frame OOE OE ii 15 5 1 Removing the front panel coocccoccccccconcconcconocononononononononononononnnnnnnnnnnnnnnnnnnnonnnnnnnnnns 15 5 2 Backplane INSEMMION AAA II A 16 cl A 18 54 Card removal ri A id 21 O O o od 22 A o LY CR OOO O E A 22 Def Attaching AMG ront Dai a A 23 So Frame status LEDS ratita titi 24 e E o E EEEN 24 A A E E A EET T RY SED 25 SS EFM Operations aa REESE BE BENS a BESES dan a a E 25 5 9 2 Repla ing d fective TANS wrest ED a e ad e de a aes 25 O FIDE ODUGS ai 26 6 1 Laser Salely DrECALION Sun AAA A ESA 26 6 2 Aandi or optical moer lll Da 27 63 Optical CONMECIONS aneno a ae ce ce ea 27 7 Flashlink COMMON DFOlOCOl sisnauiatsdvacatcadsdalsudvetaliudeudaliudeatahidestsebideatiiiadusdalgadustntadd 28 TAOS UMIC MIC CONV CAIUOINS a ean ee atresia 28 Tae TIALOWAKE INTC a ls 28 ECO o HEKS O E E EE AE E OEE E EA E A eA enees 28 74 General command Sit UCIUNG sissien pianina aA a aa aa iaae Raai 28 Lo CGara detecton HOESWAD suicida 28 O FICO COMIMANG sais RES SENERE SERENE BSN S Eee NE edn 29 7 7 Electrical to optical CONVerTerS coocccocccoccconcconcconcconcconccnnnonnnonnnonnnonnnonnnonnnonnnonnnnnnnnnns 29 TA i k RElo CONAN iaa 29 The NO EEO AE iaa 29 7 8 Optical to electrical CONVOrterS ooc
18. ntrolled by control circuits in the power supplies based on their internal temperature The fan speed is individually and continuously checked and if a fan has a speed outside expected limits it will be reported to Multicon as being defective and the lower LED at the fan front will change to red Having one defective fan in the frame shall not be considered as an emergency situation since the total needed air flow will be maintained by an increase in speed for the remaining fans Removing the fan front in a live frame may cause malfunction or damage to modules due to excessive heat and should as a rule never be done To maintain optimal cooling all air flow openings in the chassis must be kept uncovered 5 9 2 Replacing defective fans Changing a defective fan should be performed at a non live frame Procedure Please contact Nevion s customer support department nevion com 25 FR 2RU 20 2 Rev 6 Fiber optics 6 1 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 1270 nm or 1610 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 A laser beam can be harmful to the human eye depending on laser power and exposure time therefore Be careful whe
19. ons 4 1 Power connection Figure 3 shows the power connections of the frame as well as the RS 422 connections and the rotary switch for address setting of the frame AC Inputs GPI RS 22 E 7 GP Frame address setting RS422 SUB RACK 75a ste it Sync termination switch Input Sync Output Ce NEVIN evion FR 2RU 20 2 FR 2RU 28 2 Figure 6 Connector module for the power supply AC Connect mains to the frame with a mains cord with an IEC 320 connector To ensure a safe connection a cable with IEC lock connector should be used Such cables can be ordered from Nevion A green LED will light on the front when the power supply is in operation mode For a faulty power supply LED will have red light or no light 4 2 GPI Power Supply Status outputs The GPI module status outputs can be used for wiring up alarms for third party control systems GND Not connected GPI from nearest power supply OOOO GPI from farthest power supply Figure 7 GPI connector In an alarm situation the GPI output is connected low ohmic to GND nevion com 11 FR 2RU 20 2 Rev A 4 3 RS 422 connection At the rear end of the frame is an RS 422 bus When used in combination with the Multicon Rack System Controller up to 8 frames can be controlled On the rear end of the frame is a rotary switch by witch each frame can be assigned its own address see figure 3 The RS 422 interface is shown in figure 8 4 3 1 Pin out RS 4
20. protect from dust This rubber plug must be removed before the backplane is inserted Module card side view b Ea Pg Pla lg Pl la Pl E E E Ea Pl a E FE Fa E Fa Figure 13 Removing the rubber plug from module cards nevion com 16 FR 2RU 20 2 Rev A When mounting a backplane the backplane connector shall always be aligned at the left and upper corner pin see figure 13 below Alignment pin g lt p eee Figure 14 Alignment pin If the backplane to be mounted has an EMC gasket of newest type see fig 14 the procedure described below does not apply Figure 15 Newest EMC gasket solution Remove the screws on the back plane to the left of where the new back plane is to be installed seen from the back of the frame Lift the right hand side of it slightly Insert the new back plane Carefully place the right hand side of the back plane into the slot first this is the side without the EMC shielding Then use your business card or another suitable card and insert the left edge of the back plane as shown in Figure 15 below This will help avoid damage to the EMC shield when inserting the new back plane Figure 16 Inserting a new back plane After the backplanes are mounted the main module can be inserted as described in section 5 3 nevion com 17 FR 2RU 20 2 Rev A 5 3 Main module insertion After the fan front is removed full access to the card modules inside the frame is give
21. s use special fiber optical ferrule cleaner made for this purpose Never touch the ferrule or make the tip of the ferrule come in contact with other objects Always protect ferrules on optical connectors with protective cap when not in use If the above precautions are not taken the optical signal may be degraded or even lost completely and the equipment will not function properly 6 3 Optical connectors The Flashlink product range utilizes among others SC PC connectors An illustration of the different parts of the fiber optical connector are shown below SCIUPC connector protective cap red ferrule 1 optical fiber plastic housing protective coating blue yellow Figure 30 The different parts of an SC PC Connector Clean connectors are of crucial for reliable operation nevion com 27 FR 2RU 20 2 Rev A 7 Flashlink control protocol 7 1 Document conventions All commands sent to the card are printed in talics This is a command sent to a card All responses sent from a card to the controller are printed in bold This is a response sent from a card to the controller 7 2 Hardware interface The hardware interface is basically RS 422 a serial communication standard much like RS 232 but with balanced lines You can use a simple dumb RS 232 to RS 422 converter if you want to use a standard RS 232 port eg a PC COM port The receive and transmit lines can be connected to make a true RS 485 bus bu
22. t 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 ASCII 1508859 1 encoding but currently any ASCII encoding will do since no special ASCII characters are used 7 3 Addressing Each card has a unique Identifier called card position which is assigned trough hardware pinning automatically when a card is inserted into a subrack The card positions are numbered from 1 to 20 from a user point of view From a protocol or software point of view the cards are numbered 0 19 When we refer to card position in this document we refer to this low level id numbered 0 19 but the user should always see positions 1 20 in menus etc Each frame if you use more than one should have a unique frame id numbered 0 7 user and protocol software wise The id is set by rotary switches on the rear of the rack behind the power supply at the left side 7 4 General command structure Each command is built up of a sequence of ASCII characters terminated by linefeed The first two characters are the source address source frame id and the source card position Frame structure Byte 0 Rack ID 0 7 Destination Byte 1 Card position 0 19 Destination Byte 2 Rack ID 0 7 Source Byte 3 Card position 0 19 Source Byte 4 n Command or
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