VISTA 1600C EPON OLT         INSTALLATION MANUALEPON OLT Installation ManualProduct Version: VISTA 1600C EPON OLT Release ...
VISTA 1600C EPON OLT Installation ManualAnnouncement       Copyright ©2010       All rights reserved.No part of this docum...
VISTA 1600C EPON OLT Installation Manual                                                Table of contentsChapter 1 Pre-ins...
VISTA 1600C EPON OLT Installation Manual        Chapter 1 Pre-installation Preparation1.1 Installation Flow               ...
VISTA 1600C EPON OLT Installation Manual1.2 Check Installation Environment     VISTA 1600C OLT must be used indoor. Whethe...
VISTA 1600C EPON OLT Installation Manual1.3.1 Cleanness Requirements     Dust is a danger for safe-running of the EPON equ...
VISTA 1600C EPON OLT Installation Manualcapacitance coupling, inductance coupling, electromagnetic radiation, common imped...
VISTA 1600C EPON OLT Installation Manual                          Chapter 2 Installation2.1 Preparation confirmation�   Ma...
VISTA 1600C EPON OLT Installation Manual                               Figure 2-1 DC-48V power2.3 Interface cable installa...
VISTA 1600C EPON OLT Installation Manual         which will configure the VISTA 1600C.Step 2: Plug the RJ-45 of the consol...
VISTA 1600C EPON OLT Installation Manual                                                                                D+...
VISTA 1600C EPON OLT Installation Manual     Step 2: Take off the protective cap of the VISTA 1600C optical interface. The...
VISTA 1600C EPON OLT Installation Manual        connected with OLT or branch optical interface of other splitter.Step 3: C...
VISTA 1600C EPON OLT Installation Manual                               Figure 2-6 Cable bundling (1)�   The bending radius...
VISTA 1600C EPON OLT Installation Manual                               Figure 2-8 Cable bundling (3)�   The cables, which ...
VISTA 1600C EPON OLT Installation Manual             Power cable                          -                               ...
VISTA 1600C EPON OLT Installation Manual                                                           light will be always on...
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Vista 1600 c epon olt installation manual(v1.3.1)

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Vista 1600 c epon olt installation manual(v1.3.1)

  1. 1. VISTA 1600C EPON OLT INSTALLATION MANUALEPON OLT Installation ManualProduct Version: VISTA 1600C EPON OLT Release 1.3.1 Page 1 of 17 pages
  2. 2. VISTA 1600C EPON OLT Installation ManualAnnouncement Copyright ©2010 All rights reserved.No part of this document may be reproduced or transmitted in any form or by anymeans, electronic or mechanical, including photocopying, recording, or by anyinformation storage retrieval system, without prior written consent of GuangdongDonyan Network Technologies Co., Ltd.For the reason that the products may be upgrade or other, the contents in this manualwill update at any time. Without other declaration, this manual is used as userguidance. Guangdong Donyan Network Technologies Co., Ltd. makes no warranty ofany kind with regard to this material, including, but not limited to, the impliedwarranties of merchantability and fitness for a particular purpose. Page 2 of 17 pages
  3. 3. VISTA 1600C EPON OLT Installation Manual Table of contentsChapter 1 Pre-installation Preparation......................................................................................... 4 1.1 Installation Flow............................................................................................................... 4 1.2 Check Installation Environment..................................................................................... 5 1.3 Environmental Requirements......................................................................................... 5 1.3.1 Cleanness Requirements......................................................................................6 1.3.2 Requirements for anti-disturbance..................................................................... 6 1.3.3 Safety for using laser........................................................................................... 7 1.4 Tools................................................................................................................................... 7 1.5 Safety attentions.............................................................................................................. 7Chapter 2 Installation..................................................................................................................... 8 2.1 Preparation confirmation.................................................................................................8 2.2 Grounding cable installation and power cable installation......................................... 8 2.2.1 Grounding cable installation................................................................................ 8 2.2.2 AC power installation........................................................................................... 8 2.2.3 DC power installation........................................................................................... 8 2.3 Interface cable installation............................................................................................. 9 2.3.1 Console cable installation.................................................................................... 9 2.3.2 Category 5 Cable installation............................................................................ 10 2.3.3 Optical fiber installation..................................................................................... 11 2.4 Splitter installation......................................................................................................... 12 2.4.1 Introduction of splitter....................................................................................... 12 2.4.2 Splitters installation indoor................................................................................ 12 2.5 Routing recommendation in the installation.............................................................. 13 2.5.1 VISTA 1600C installed on the working platform............................................ 13 2.5.2 VISTA 1600C installed in the cabinet.............................................................. 13 2.6 Cable bundling during installation............................................................................... 13 2.6.1 Correct usage of the tag....................................................................................13 2.6.2 Attentions during cable bundling..................................................................... 13 2.7 Checking after installation............................................................................................ 15 2.8 Power-on......................................................................................................................... 16 2.8.1 Rechecking before power-on............................................................................ 16 2.8.2 Power-on.............................................................................................................. 16 2.8.3 Equipment running checking............................................................................ 16 Page 3 of 17 pages
  4. 4. VISTA 1600C EPON OLT Installation Manual Chapter 1 Pre-installation Preparation1.1 Installation Flow O L T installation begin V erify installation environm ent V erify O L T installation position Install in the 1 9 -inch standard Install on the w orking cabinet p la tf o r m P ow er/signal cable installation R echeck before pow er - o n P ow er-o n C heck running status O L T installation finish Figure 1-1 OLT installation flow Page 4 of 17 pages
  5. 5. VISTA 1600C EPON OLT Installation Manual1.2 Check Installation Environment VISTA 1600C OLT must be used indoor. Whether you install the VISTA 1600C OLT inthe cabinet or on the working platform, the requirements must be as following:� Make sure there is the enough space in the tuyere for the heat dissipation of the OLT.� Make sure the cabinet and the working platform have the heat dissipation system themselves.� Make sure the cabinet and the working platform are firm enough to hold the OLT and its accessories.� Make sure the cabinet and the working platform are earthed.1.3 Environmental Requirements To ensure that EPON equipment has the normally running and life-span, theequipment room must keep the temperature and humidity. If the humidity in the room ishigh chronically, insulation materials will be not well-insulated or even creepage.Sometimes the mechanic function of the materials may be changed or the metalliccomponents may rust. If the relative humidity is low, fastening screw may get loosebecause the insulation piece will be dry shrinking. In the dry environment, it will take thestatic to jeopardize the circuit in the EPON equipment. The high temperature will causemore dangers. The long-term high temperature will cause insulation materials to age muchmore quickly. The environmental requirements of the equipment room are as table 1-1: Table 1-1 Environmental requirements of the equipment room Range Range Item (long-term working (short-term working condition) condition) Temperature -5℃~+45℃ -25℃~+55℃ Relative humidity 5%~95% 10%~100% Relative humidity 1g/m3~29g/m3 0.5g/m3~29g/m3 Temperature variation ≤0.5℃/min ≤0.5℃/min rate Air pressure 70kPa~106kPa 70kPa~106kPa Solar radiation ≤700W/m² ≤1200W/m² Heat emission ≤600W/m² ≤600W/m² Wind speed ≤5m/s ≤5m/sNote � Short-term working condition means the total working time during one year is less than 15 days and each time is no more than 96 hours. Page 5 of 17 pages
  6. 6. VISTA 1600C EPON OLT Installation Manual1.3.1 Cleanness Requirements Dust is a danger for safe-running of the EPON equipment. When dust falls on theequipment, is will take the static, which will lead to the poor contact of metallic connectoror metallic junction. Especially when the indoor humidity is relatively low, the static iseasier to be taken. It will not only affect the life-span of the equipment, but also will causethe malfunction of the communication. The requirements for dust contents and thediameter of the dust in the equipment room are shown in table 1-2. Table 1-2 Requirements for dust contents in the equipment room Mechanic active Contents substance Suspended dust ≤5.00mg/m³ Perceptible dust ≤20.0mg/m²·h Gravel ≤300mg/m³ Note � Suspended dust: diameter of the dust is no more than 75μm. � Perceptible dust: diameter of the dust is no less than 75μm and no more than 150μm. � Gravel: diameter of the dust is no less than 150μm and no more than 1000 μm. Besides the dust, requirements for the salt, acid, sulfide in the equipment room aredemanding. These noxious gases will fasten the erosion of the metal and the aging ofsome components. Invasion of noxious gases such as SO2、H2S、NH3、Cl2 should beprevented. The limits for these gases contents will be seen in table 1-3: Table 1-3 Noxious gas limit in the equipment room Chemically reactive substance Contents Sulfur dioxide (SO2) ≤0.30mg/m³ Sulfureted hydrogen (H2S) ≤0.10mg/m³ Nitrogen dioxide (NO2) ≤0.50mg/m³ Ammonia (NH3) ≤1.00mg/m³ Chlorine (Cl2) ≤0.10mg/m³ Hydrochloric acid (HCl) ≤0.10mg/m³ Hydrofluoric acid (HF) ≤0.01mg/m³ Ozone (O3) ≤0.05mg/m³1.3.2 Requirements for anti-disturbance OLT may be disturbed from outside. These disturbances will affect the equipment by Page 6 of 17 pages
  7. 7. VISTA 1600C EPON OLT Installation Manualcapacitance coupling, inductance coupling, electromagnetic radiation, common impedancecoupling (including grounding system) and transmission modes of the cables(etc. powercable ,signal cable and output cable). So the following must be paid attention to:� AC power system is the TN system. AC power socket must be the single-phase three-cable power socket with protection earthing(PE), to make sure the filtering circuit will filter the disturbance of the electric network very well.� Work location of OLT equipment should be far from super power radio-transmitting station, radar-transmitting station and high-frequency high-current equipment.� Electromagnetic shielding should be adopted if necessary. For example, interface cable must be electromagnetic shielding cable.� Interface cables must be routing indoor. Outdoor routing is forbidden. This is to avoid that the overvoltage and overcurrent of lighting will damage the signal interface of the equipment.1.3.3 Safety for using laser VISTA 1600 series EPON equipment belongs to Type-1 laser equipment. If the lightboard of the VISTA 1600 series EPON equipment is still running, please don’t see theselight interfaces directly. The light bundles from the optical fibers contain high energy, sothey may harm the retina.1.4 Tools� Straight screwdriver� Cross screwdriver� ESD preventive wrist strap1.5 Safety attentions� Before cleaning the VISTA 1600C OLT, you must get out the VISTA 1600C power plug. Don’t clean the OLT with wet cloth. Don’t clean the OLT with liquid.� Don’t put the OLT near water or in wet place to prevent water or humid gas to get into the OLT.� Don’t put the OLT on an unstable box or table. Or else it falls, the OLT will get damaged seriously.� Make sure the ventilation condition for the OLT and the equipment room is fine.� The OLT can work only with the right voltage. So make sure the running voltage is the same as the voltage signed on the OLT.� To reduce the danger of electricity strike, don’t open the shell when the OLT is running. Even when the equipment is power-off, don’t open the shell arbitrarily.� When changing the interface board, please wear the ESD preventive gloves, to prevent the damage of the board by static. Page 7 of 17 pages
  8. 8. VISTA 1600C EPON OLT Installation Manual Chapter 2 Installation2.1 Preparation confirmation� Make sure you have read the contents in Chapter 1 Carefully.� The requirements in Chapter 1 are satisfied.2.2 Grounding cable installation and power cableinstallation2.2.1 Grounding cable installationCorrect installation grounding cable is the guarantee for anti-lighting and anti-disturbanceof the VISTA 1600C. So users should install the grounding cable correctly. The usualearthing conditions are as following:Step 1: Get off the screw of shell-grounding hole of the OLT.Step 2: Put one end of the grounding cable to the grounding screw on the shell of the OLT.Step 3: Tighten the screw in Step One into the grounding hole.Step 4: Connect the other end of the grounding cable to the ground bar provided for VISTA1600C.2.2.2 AC power installationInput AC power for VISTA 1600C OLT is 220V AC.Step 1: Plug the AC power cable accessory with VISTA 1600C into the power socket on the back panel of the VISTA 1600C.Step 2: Plug the other end of the power cable into the socket which provides AC power for VISTA 1600C.2.2.3 DC power installationDC power input for VISTA 1600C OLT is -48V DC.Step 1: Loosen the fixed screw on the socket of VISTA 1600C OLT DC power.Step 2: Plug the -48V DC power cable in the equipment room or cabinet into the socket of VISTA 1600C OLT DC power according to the instruction standard of this socket and tighten the screw. The connection standard is as figure 2-1: Page 8 of 17 pages
  9. 9. VISTA 1600C EPON OLT Installation Manual Figure 2-1 DC-48V power2.3 Interface cable installation2.3.1 Console cable installation The console cable is an 8-pin shielding cable. One end is connected to RJ-45, whichwill be plugged into the console port of VISTA 1600C. The other end, with a DB-9, can beplugged into the 9-pin serial port socket, which is used for configuring the terminal.Console cable is as following: Figure 2-2 Console cable Table 2-1 Console Cable Connection Relationship RJ-45(1-8) Signal DB-9 Orange white Green white Blue TXD 2 Orange GND 5 Brown GND 5 Green RXD 3 Brown white Blue white When configuring VISTA 1600C through the console cable, the connection of theconsole cable is as following steps:Step 1: Plug the DB-9 of the console cable into the serial port of PC or terminal, Page 9 of 17 pages
  10. 10. VISTA 1600C EPON OLT Installation Manual which will configure the VISTA 1600C.Step 2: Plug the RJ-45 of the console cable into the VISTA 1600C console port.2.3.2 Category 5 Cable installationRJ-45 connector introduction It is the manage port of the VISTA 1600C equipment; 10/100/1000BASE-T port is allRJ-45 connector. The interface is auto MDI/MDIX crossover and the cable is the category 5cable in the course of use. In the following picture, the appearance and the pins of RJ-45connector are shown. Figure 2-3 RJ-45 connector Table 2-2 RJ-45 MDI port pin allocation 10/100Base-T 10/100Base-T 1000Base-T 1000Base-TPin number signal function signal function 1 TX+ Transmitting data BIDA+ Two-direction data bus A+ 2 TX- Transmitting data BIDA- Two-direction data bus A- 3 RX+ Receiving data BIDB+ Two-direction data bus B+ 4 Reserved - BIDC+ Two-direction data bus C+ 5 Reserved - BIDC- Two-direction data bus C- 6 RX- Receiving data BIDB- Two-direction data bus B- 7 Reserved - BIDD+ Two-direction data bus D+ 8 Reserved - BIDD- Two-direction data bus D- Table 2-3 RJ-45 MDI-X port pin allocation 10/100Base-T 10/100Base-T 1000Base-T 1000Base-TPin number signal function signal Function Two-direction data bus 1 RX+ Receiving data BIDB+ B+ 2 RX- Receiving data BIDB- Two-direction data bus B- Two-direction data bus 3 TX+ Transmitting data BIDA+ A+ 4 reserved - BIDD+ Two-direction data bus Page 10 of 17 pages
  11. 11. VISTA 1600C EPON OLT Installation Manual D+ Two-direction data bus 5 reserved - BIDD- D- 6 TX- Transmitting data BIDA- Two-direction data bus A- Two-direction data bus 7 reserved - BIDC+ C+ 8 reserved - BIDC- Two-direction data bus C-Category 5 cable installationStep 1: Plug one end of the network cable into Ethernet connector RJ-45 which you want to link.Step 2: Plug the other end of the network cable into Ethernet connector RJ-45 of the other side equipment.2.3.3 Optical fiber installationOptical fiber connector introduction When you choose the optical fiber, make sure the type of the chosen optical fiberconnector is the same as the type of the optical interface. Optical fiber connector is theindispensable passive device in optical fiber communication system. Its usage will makepossible dismountable connection in optical channels. This will facilitate the debugging andmaintenance of the optical system, and make the linking more flexible. There are manytypes of the optical fiber connector. We only introduce SC type and LC type. SC optical fiber connector Figure 2-4 SC optical fiber connector LC optical fiber connector Figure 2-5 LC optical fiber connector Optical fiber installation Step 1: Take off the protective cap of the optical fiber. Then clean the fiber endface Page 11 of 17 pages
  12. 12. VISTA 1600C EPON OLT Installation Manual Step 2: Take off the protective cap of the VISTA 1600C optical interface. Then put oneside of the optical fiber into the optical interface. Step 3: Connect the other side of the optical fiber with the other side equipment.2.4 Splitter installation2.4.1 Introduction of splitter In the optical access network of the EPON system, ODN (Optical Distribution Network)exists between OLT equipment and the ONU equipment of the customer side. ODNconsists of trunk optical fiber, splitter and branch optical fiber. Splitter is the indispensable component in the EPON system. As the passive devicewhich connects OLT and ONU, it transmits the input optical signal from the trunk opticalfiber to the branch optical fiber according to power ratio. The power ratio is usually 1:2, 1:4,1:8, 1:16, 1:32, all together five types. For the ratio 1:2, there are two types fortransmission, the power--even transmission and non-even transmission (can be set). Forother ratio, the power will be transmitted to the branch fiber evenly. For the upstreamtransmission, the optical signal of the branch optical fiber will be coupled to the trunkoptical fiber and then transmitted to the optical line terminal (OLT). No external power butincoming light bundle is needed for the splitter. And only power loss will be increased,because they will share the input (downstream) power. The loss is called loss of splitter orbranch ratio, always by dB. And it is determined by the number of output ports. Splitter consists of one trunk optical interface and several branch optical interfaces.Carriers can choose different splitters according to different structure of the network.2.4.2 Splitters installation indoor When the splitter is installed in the OLT side, shelf-mounting splitter is suggested. It iseasy for installation.Step 1: Put the splitter on the chassis flat and keep it close the lateral columns of the shelf.Step 2: Fasten the screws to fix the splitter with the shelf. Different splitters may be chosen according to the routing when the splitter is far fromOLT equipment or links up-layer splitter. Specific installation method is according to thesituation of actual project. After power-on, invisible light may be emitted from the opticalinterface, when the optical interface is not connected to optical connector or the protectivecap is opened. So don’t look at the optical interface directly. To keep the optical connectorclean, make sure to close the protective cap within 10 seconds. If optical connector is notinstalled in the optical interface, make sure to close the protective cap.Step 1: Take off the protective cap of the OLT optical interface.Step 2: Take off the protective cap of the trunk optical fiber connector of splitter. Then putit Page 12 of 17 pages
  13. 13. VISTA 1600C EPON OLT Installation Manual connected with OLT or branch optical interface of other splitter.Step 3: Connect the branch optical fiber of the splitter to the ODF(Optical DistributionFrame). Routing is according to the situation of actual project. Then connect the optical fiber to the customer side according to their requirements2.5 Routing recommendation in the installation2.5.1 VISTA 1600C installed on the working platform When the VISTA 1600C is installed on the working platform solely, all service cables ofinterface will be routed in the front of the equipment. The power cable of the equipmentwill be routed from the back.2.5.2 VISTA 1600C installed in the cabinet When the equipment is installed in the 19-inch standard cabinet, the service cablesshould be bundled up in the holder on the left side of the cabinet. According to thesituation in the equipment room (the signal cables are routed from the cabling rack on topof the cabinet, or from the cabling slot under the ground), upward cabling mode ordownward cabling mode will be chosen. All interfaces of signal cables should be put at thebottom of the cabinet (They are not allowed to be put outside the cabinet, where they areeasy to be touched). The power cable should be routed at the back of the machine cabineton the left side. According to the situation in the equipment room of the central office (DCpower cabinet, anti-lighting box, terminal bar, etc), upward cabling mode or downwardcabling mode will be chosen.2.6 Cable bundling during installation2.6.1 Correct usage of the tag Before bundling up the cables, please write the tag correctly and then attach it atappropriate place.2.6.2 Attentions during cable bundling� After bundling up, the cables must be lank and tidy in the cabinet. No twisting and bending are allowed. Page 13 of 17 pages
  14. 14. VISTA 1600C EPON OLT Installation Manual Figure 2-6 Cable bundling (1)� The bending radius of the cable should be no less than 2 times of cable diameters. At the interface connector, the bending radius shall be no less than 5 times of the diameters.� Different types of cables (power cable, signal cable, etc) should be routed and bundled up separately. Mixed bundling-up is not allowed. When they are near each other, cross routing may be adopted. When parallel routing, the distance between power cable and signal cable should be no less than 30 mm.� The cabling rack inside and outside the cabinet and the cabling slot should be smooth, without sharp edges and corners.� The metallic hole which the cable will get through should have smooth and rounding surface, or have insulated bushing.� Proper cable tie should be chosen when bundling up the cables. Two or more than two cable tie together for bundling up the cables are not allowed.� After bundling up the cables with cable tie, extra should be cut off. The incision should be smooth without sharp corner. Figure 2-7 Cable bundling (2)� If the cables will get bending, then bundle the cables before they get bending. The cable tie will not appear in the bending point, in order to prevent the cable from breaking because of great stress. Page 14 of 17 pages
  15. 15. VISTA 1600C EPON OLT Installation Manual Figure 2-8 Cable bundling (3)� The cables, which do not need to assemble, or the extra part of the cables should be folded and bundled up in appropriate place in the cabinet or the slots. Appropriate place means it will not affect the running of the equipment, not damage the equipment or not damage the cable.� The 220V AC power cable should not be bundled up in the track of removable components.� For the power cable of the removable components such as grounding cable of door, some extra will be reserved after installing, to prevent the cable from stress. When removable component reaches the installation location, make sure the extra cable will not contact heat, sharp corner, edges and so on. When avoiding heat is not possible, the cable must be high-temperature cable.� If the cable connector is fixed by screw, the screw or nut should be firm and some measures for anti-loosening will be adopted.� For some hard power cable, the cable should be fixed near the end point, to prevent the stress near the end point.� Please don’t use screw which made by yourself to fix the end point.� Power cable with the same type and the same routing direction should be bundled up together. Then cables in the cable bundle should be clean and lank.� No knotting are allowed when bundling up the cables or routing.� For the cold-pressing end point (such as air switch), the metallic part of the old-pressing end point should not be exposed outside when assembling.2.7 Checking after installation When checking whether the installation is correct, please make sure the power supplyis off, to prevent the damage of body and the equipment. After installation, please checkaccording to the items in the following table. The listed items must work normally. Table2-4 Table for checking after installation Check item Normal Abnormal Remarks ESD preventive wrist strap - - Console cable - - Grounding cable - - Page 15 of 17 pages
  16. 16. VISTA 1600C EPON OLT Installation Manual Power cable - -2.8 Power-on2.8.1 Rechecking before power-on� Check whether the equipment is installed firmly.� Check whether all service cables, optical fibers, power cables and grounding cables are installed correctly.� Check whether the voltage of power supply is the same with the requirement of the equipment.� Check whether the console cables are connected correctly. Check whether console computer or terminal is on. Check whether terminal parameters are set.2.8.2 Power-on� Plug power cable of the equipment.� Put the power-supply switch on.2.8.3 Equipment running checking� After power-on, the fan begins to work. So you can hear the noise of fan running. There is air out from the ventilator of the switch. Check whether the instruction lights in the panel of the system run normally. Table 2-5 Status table for the instruction lights on the front panel of OLT LED Meaning Working Status If the power A is power-on, the green light will be the instruction light for power PWRA always on; if the power A isn’t power-on, the A (220V AC) green light won’t be lit up. If the power B is power-on, the green light will be the instruction light for power PWRB always on; if the power B isn’t power-on, the B (-48V DC) green light won’t be lit up. If the fuse of power A or B is burnt out, the red the alarm light for the fuses FUSE light will be always on; if the fuses of power A and of power A and B B work normally, the red light won’t be lit up. If the equipment works normally, the green light the instruction light for will be flashing (1Hz); if the equipment RUN equipment working status malfunctions, the green light will be always on or off. the instruction light for fans If the fans work normally, the yellow light won’t be FAN status lit up; if the fans have malfunctions, the yellow Page 16 of 17 pages
  17. 17. VISTA 1600C EPON OLT Installation Manual light will be always on. If the equipment system works normally and there the instruction light for is no alarm, the red light won’t be lit up; if there is ALM equipment alarm an alarm for the equipment system, the red light will be always on. If destination PON interface is in working status, which means there is at least one ONU logs in this the instruction lights for the PON interface successfully, the corresponding PON working status of 10 PON green light will be always on; if destination PON[1X…10X] interfaces interface has malfunctions, is not installed or isn’t in working status, the corresponding green light won’t be lit up the instruction light for the If the OLT stacks with another OLT by stack STK connection status of two 5G interfaces and the stack path works normally, the stack interfaces green light will be always on. Table 2-6 Status table for the instruction lights on the back panel of OLT LED Meaning Working Status If the PON card is installed, starts normally and is the instruction light for load successfully, the green light will be always RUN working status of the PON on; if the PON card is not installed or fails to be card load after installed, the green light won’t be lit up. the instruction light for the If the PON card runs normally, the yellow light ALARM malfunction alarm of the PON won’t be lit up; if the PON card malfunctions, the card yellow will be always on. the instruction lights for If destination PON interface is in working status, working status of PON which means there is at least one ONU logs in interface one PON interface successfully, the LINK (the two green lights at left corresponding green light will be always on; if and right correspond to the destination PON interface has malfunctions, or two PON interfaces of the isn’t in working status, the corresponding green PON card separately) light won’t be lit up. the instruction lights for If the destination PON interface is in service service status of PON status, which means there is some traffic switch interface in this PON interface, the corresponding yellow ACT (the two yellow lights at left light will be flashing; if the destination PON and right correspond to the interface isn’t in service status, the corresponding two PON interfaces of the yellow light won’t be lit up. PON card separately) Page 17 of 17 pages

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