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5.1 Fault identification

This topic describes the general troubleshooting flowchart and the methods for preliminarily
locating faults.

Context

Figure 5-1

Troubleshooting Procedure

Start

Locate the fault preliminarily

Check the optical fiber status

Check the ONT status

Check the device statistics

Check the data Configuration

on the device

Check the upper-layer device

status

End

Procedure

Step 1

Locating a Fault Preliminarily

Find the fault location and the cause of the fault.

shows the locating procedure.

5 Troubleshooting

EchoLife HG861 GPON Terminal

5-2

Huawei Proprietary and Confidential

Copyright © Huawei Technologies Co., Ltd.

Issue 01 (2009-07-30)

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Summary of Contents for EchoLife HG861

Page 1: ...EchoLife HG861 GPON Terminal V100R001 Issue 01 Date 2009 07 30 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd ...

Page 2: ...y form or by any means without prior written consent of Huawei Technologies Co Ltd Trademarks and Permissions and other Huawei trademarks are the property of Huawei Technologies Co Ltd All other trademarks and trade names mentioned in this document are the property of their respective holders Notice The information in this document is subject to change without notice Every effort has been made in ...

Page 3: ...figuring the Service Through the N2000 BMS 3 3 3 2 1 CATV Service 3 3 3 2 2 Upgrading the ONT 3 3 3 2 3 Collecting the Fault Information 3 4 3 3 Command Lines 3 4 3 3 1 Command Introduction 3 4 3 3 2 Common Commands 3 5 3 4 Maintaining the ONT Through the CLI 3 5 3 4 1 Setting Up a Maintenance Environment Local 3 6 3 4 2 Upgrading the ONT from the Local Device 3 6 3 4 3 Upgrading the ONT from the ...

Page 4: ...ff 5 9 5 3 3 LINK LED Is On but AUTH LED Is Off 5 9 5 3 4 LINK LED and AUTH LED Blink 5 9 5 3 5 LAN LED Is Off 5 10 5 3 6 CATV LED Is Off 5 11 5 4 FAQs 5 11 5 4 1 FAQs About Configuration 5 12 5 4 2 FAQs About Operation and Maintenance 5 13 6 Technical Specifications 6 1 6 1 Physical Specifications 6 2 6 2 Protocols and Standards 6 2 Contents EchoLife HG861 GPON Terminal ii Huawei Proprietary and ...

Page 5: ...9 Figure 2 8 Local manual upgrade through the Web Page I 2 10 Figure 2 9 Local manual upgrade through the Web Page II 2 10 Figure 3 1 Relations between the command modes 3 5 Figure 5 1 Troubleshooting Procedure 5 2 Figure 5 2 Appearance of the PPM 350B 5 6 Figure 5 3 Schematic diagram of measurement points of optical power in the GPON 5 6 Figure 5 4 Measurement interface of the optical power meter...

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Page 7: ...861 3 5 Table 3 2 Collecting fault information about the GPON service 3 8 Table 5 1 Fault Location and Possible Cause 5 3 Table 5 2 Indexes related to the light on the GPON ONT side 5 6 Table 5 3 Optical loss parameter table used in the engineering 5 7 EchoLife HG861 GPON Terminal Tables Issue 01 2009 07 30 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd v ...

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Page 9: ... lists the product versions related to this document Product Name Product Version EchoLife HG861 V100R001 Intended Audience The intended audience of this document is as follows l Technical support engineers l Maintenance engineers Organization This document is organized as follows Chapter Describes 1 Safety Precautions To ensure normal running of the device read the safety precautions carefully be...

Page 10: ...ations of the HG861 include its physical specifications and compliant standards and protocols Conventions Symbol Conventions The following symbols may be found in this document They are defined as follows Symbol Description Indicates a hazard with a high level of risk which if not avoided can result in death or serious injury Indicates a hazard with a medium or low level of risk which if not avoid...

Page 11: ... in square brackets are optional x y Alternative items are grouped in braces and separated by vertical bars One can be selected x y Alternative items are grouped in square brackets and separated by vertical bars One or none can be selected x y Alternative items are grouped in braces and separated by vertical bars A minimum of one or a maximum of all can be selected x y Alternative items are groupe...

Page 12: ...primary mouse button without moving the pointer Double click Press the primary mouse button twice continuously and quickly without moving the pointer Drag Press and hold the primary mouse button and move the pointer to a certain position Update History Updates on the document are described in the update history Therefore the latest document contains all updates made to previous versions Updates in...

Page 13: ... of others when using the device Environment Requirements l Install the device in a well ventilated place that is not directly exposed to sunlight l Keep the device clean l Keep the device away from water sources or wet places l Do not place any objects on the device to prevent the device from being damaged by heat or weight of the object placed on the device l Leave a space of at least 10 cm arou...

Page 14: ... stop the device switch off the power and remove all cables including the power cable optical fibers and network cables from the device Contact the specified service center in case of a device failure l Prevent foreign objects such as metal objects from dropping into the device through the heat dissipation hole l Prevent the outer case of the device from being scratched because the paint that is p...

Page 15: ...his topic provides the appearance and describes the ports and LEDs of the HG861 2 2 Typical Network Application This topic describes the typical network application of the HG861 2 3 Installation Guide This topic describes how to install the HG861 EchoLife HG861 GPON Terminal 2 System Overview Issue 01 2009 07 30 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 2 1 ...

Page 16: ...T management and control interface OMCI technology which facilitates the automatic service provision remotely by service providers and the remote maintenance and management by network maintenance staff 2 1 1 Appearance This topic provides the appearance of the HG861 2 1 2 Ports This topic provides the port appearance of the HG861 and describes the functions of the ports 2 1 3 LEDs This topic provi...

Page 17: ...cal fiber for upstream transmission LAN Ethernet ports They are used to connect the network devices such as the PC STB or switch POWER Power port It is a power port connected to the power adapter or batteries ON OFF On Off switch used to power on or power off the HG861 2 1 3 LEDs This topic provides the LED appearance and describes the indications of the LEDs on the HG861 Figure 2 3 shows the LEDs...

Page 18: ...le 2 3 See Table 2 3 LAN Ethernet port LED On The connection on the Ethernet port is normal Off No connection is set up on the Ethernet port Blinks Data is being transmitted on the Ethernet port Table 2 3 Status of the LINK LED and the AUTH LED No LED Status Description LINK AUTH 1 Off Off The HG861 is in the initiation state 2 Blinks slow Off The HG861 is ready 3 Blinks quickly Blinks slow The HG...

Page 19: ... Quick blinking of the LED indicates that the LED blinks three times per second and slow blinking of the LED indicates that the LED blinks once per second 2 2 Typical Network Application This topic describes the typical network application of the HG861 Figure 2 4 shows the network application of the HG861 Figure 2 4 Network application of the HG861 EchoLife HG861 GPON Terminal 2 System Overview Is...

Page 20: ... to provide the integrated access services l In the downstream direction the HG861 connects to the PC STB and other devices through the Ethernet port to provide the data and video services Feature l Functions as the GPON terminal to provide the broadband services l Provides the downstream rate of up to 2 488 Gbit s and the upstream rate of up to 1 244 Gbit s l Provides one 1000Base T full duplex E...

Page 21: ...cal port in the wall Mark the positions of the two holes used for fixing the HG861 on the wall The distance between the two holes is 150 mm Step 2 Select a proper drill bit according to the outer diameter of the mounting screws Use a percussion drill to drill at the marked positions on the wall Step 3 Use a screw driver to fasten the mounting screws at the positions of the holes on the wall Step 4...

Page 22: ... cables disconnect the power supply of all the devices to be connected to the HG861 such as the PC and IP STB Context Figure 2 6 shows the connections of the HG861 Figure 2 6 Connections of the HG861 2 System Overview EchoLife HG861 GPON Terminal 2 8 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd Issue 01 2009 07 30 ...

Page 23: ...t 100 240 VAC output 11 14 VDC to connect the POWER port of the HG861 with the power socket Step 4 Turn on the power switch If the POWER LED is on it indicates that the power supply is available NOTE The ports of the HG861 support certain lightning proof capability however if the lightning is out of the supported loading range the HG861 may fail to work in the normal state It is recommended that y...

Page 24: ...e Web Page I Step 4 Click Browse and choose the local file to be upgraded for example HG861V100R001C01B026_all bin as shown in Figure 2 9 Figure 2 9 Local manual upgrade through the Web Page II Step 5 Click Update Fireware and wait for the page to display the successful upgrade Step 6 Restart the ONT End 2 3 4 Service Overview The HG861 supports the video and data services The HG861 can be connect...

Page 25: ...EchoLife HG861 GPON Terminal 2 System Overview Issue 01 2009 07 30 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 2 11 ...

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Page 27: ... This topic describes how to configure the CATV service and upgrade the ONT through the N2000 BMS 3 3 Command Lines Before maintaining the HG861 make sure that you have mastered the usage of command lines which is a means to configure the device 3 4 Maintaining the ONT Through the CLI This topic describes how to maintain the ONT through the CLI EchoLife HG861 GPON Terminal 3 Configuration Guide Is...

Page 28: ...on of the ONT and the configuration recovery of the online ONT Based on this mechanism the ONT does not need to save the configuration information locally This helps to provision services and maintain the terminal 3 1 2 Setting Up the OMCI Channel This topic describes how to set up the OMCI channel Context The process of setting up the OMCI channel between the OLT and the ONT is performed automati...

Page 29: ...ON Service Profile and GPON ONT Capability Profile in the Configuration Guide TIP The parameters related to the CATV service are Number of CATV Ports in the GPON service profile and Number of CATV ANI Ports and Number of CATV UNI Ports in the GPON ONT capability profile 3 2 2 Upgrading the ONT To upgrade the ONT remotely through the NMS on the OLT side do as follows Procedure Step 1 On the Physica...

Page 30: ...1 make sure that you have mastered the usage of command lines which is a means to configure the device 3 3 1 Command Introduction This topic describes the structure and the modes of commands 3 3 2 Common Commands 3 3 1 Command Introduction This topic describes the structure and the modes of commands l Command Structure The command prompt consists of two parts fixed character string and command mod...

Page 31: ...861 Table 3 1 Common commands for the HG861 Operation Command Enter the privilege mode HG861 enable Enter the global config mode HG861 configure terminal Exit the current mode and enter the upper level mode or exit the configuration interface exit any mode Reboot HG861 reboot Save the config data HG861 save Upgrade the ONT HG861 upgrade Query the RF status HG861 display rf status 3 4 Maintaining t...

Page 32: ...by the HG861 to perform maintenance 3 4 2 Upgrading the ONT from the Local Device This topic describes how to remotely upgrade the ONT through the CLI on the local device Prerequisite Set the IP address of the maintenance terminal the maintenance PC to 192 168 100 100 255 255 255 0 remarks by default the local maintenance IP address of the HG861 is 192 168 100 1 255 255 255 0 Use a network cable t...

Page 33: ... 1 In the diagnosis mode run the load ont command to load the upgrade file to the OLT board Step 2 During the loading process you can run the display progress load command to view the progress Step 3 After the system prompts that the loading is successful run the ont software update command to upgrade the ONT Step 4 After the upgrade the system prompts you to reset the ONT Run the ont reset comman...

Page 34: ... command in the global config mode display service port port frameid slotid portid Run the following commands in the GPON configuration mode l display port info l display port state l display port ont regiser info NOTE This command is applicable to only the ONTs of the V800R005 and V800R006C02 versions in the distributed mode at the CO end 4 ONT information Record the version information about the...

Page 35: ... the ONT configuration failure display ont failed configuration NOTE This command is applicable to only the ONTs of V800R006C02 version in the distributed mode at the CO end EchoLife HG861 GPON Terminal 3 Configuration Guide Issue 01 2009 07 30 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 3 9 ...

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Page 37: ...nnected to the HG861 in the downstream direction 4 2 Using the PC This topic describes how to configure the PC connected to the HG861 in the downstream direction 4 3 Using the CATV This topic describes how to configure the TV set connected to the HG861 in the downstream direction EchoLife HG861 GPON Terminal 4 ONT Downstream User Guide Issue 01 2009 07 30 Huawei Proprietary and Confidential Copyri...

Page 38: ...e provider determines a specified method Step 4 Enjoy the high speed video service Watch the program according to the prompt End 4 2 Using the PC This topic describes how to configure the PC connected to the HG861 in the downstream direction Procedure Step 1 Connect the device For how to connect the PC see 2 3 Installation Guide Make sure that the PC is connected properly Step 2 Turn on the power ...

Page 39: ...ut any configuration End 4 3 Using the CATV This topic describes how to configure the TV set connected to the HG861 in the downstream direction Procedure Step 1 Connect the device For how to connect the TV set see2 3 Installation Guide Make sure that the TV set is connected properly Step 2 Turn on the power supply Power on the HG861 and TV set Step 3 Enjoy the high speed video service Watch the pr...

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Page 41: ...ocating faults 5 2 Troubleshooting Preparations This topic describes the tools namely digital multimeter and optical power meter to be prepared before troubleshooting 5 3 Locating Faults Based On the LEDs on the GPON ONT This topic describes how to locate a fault according to the status of the LEDs on the HG861 5 4 FAQs FAQs include faults that occur on the HG861 and the corresponding solutions Ec...

Page 42: ...ical fiber status Check the ONT status Check the device statistics Check the data Configuration on the device Check the upper layer device status End Procedure Step 1 Locating a Fault Preliminarily Find the fault location and the cause of the fault Table 5 1shows the locating procedure 5 Troubleshooting EchoLife HG861 GPON Terminal 5 2 Huawei Proprietary and Confidential Copyright Huawei Technolog...

Page 43: ...ber loop is faulty l The PON port is faulty l The data configuration of the upper layer device is incorrect l The PON board is faulty l The optical path is faulty l The control board or the uplink interface board is faulty l There are network attacks l Check whether the PC route conflict exists l Check whether the WAN port obtains the address successfully l Check whether the IP address segment obt...

Page 44: ... State is down it indicates that the user is offline l If Control Flag is activated and the ONT registration is disabled run the ont activate command in the GPON mode to activate the control flag l If the configured MAC address is inconsistent with the actual MAC address of the ONT the registration fails l If Config State is in the normal state it indicates that the ONT configuration recovery is i...

Page 45: ...ribes the appearance functions and usage instructions of the optical power meter An optical power meter a necessary test meter in the test of the optical fiber communication system is mainly used to measure the optical power of various wavelengths in measurement points of the optical fiber link Optical power indicates the energy of the light in a measurement point of the optical fiber link which i...

Page 46: ...diagram of measurement points of optical power in the GPON Field engineers should also know the indexes related to light on the ONT side such as the maximum input optical power of the 1490 nm wavelength minimum output optical power of the 1310 nm wavelength and receive sensitivity of the 1490 nm wavelength Table 5 2 lists related indexes Table 5 2 Indexes related to the light on the GPON ONT side ...

Page 47: ...easurement Figure 5 4 shows the measurement interface of the optical power meter Figure 5 4 Measurement interface of the optical power meter he optical channel loss is the total loss caused by optical fibers optical splitters active connectors and fixed connection points of optical fibers In the engineering design Table 5 3 can be used to estimate the optical path attenuation Table 5 3 Optical los...

Page 48: ...separately 5 3 Locating Faults Based On the LEDs on the GPON ONT This topic describes how to locate a fault according to the status of the LEDs on the HG861 5 3 1 Power LED Off This topic describes how to locate a fault when the Power LED is off 5 3 2 LINK LED Off This topic describes how to locate a fault when the LINK LED is off 5 3 3 LINK LED Is On but AUTH LED Is Off The ONT fails to register ...

Page 49: ...ain and check whether the optical power meets the input requirement of the GPON ONT If the optical power does not meet the input requirement of the GPON ONT it indicates that the optical fiber link is faulty Otherwise proceed with the next step Step 5 Check whether the ONT connector is clean Wipe the section of the connector in one direction with special paper for wiping optical fibers or lens of ...

Page 50: ... 3 5 LAN LED Is Off This topic describes how to locate a fault when the LAN LED is off Procedure Step 1 Check whether the network cables match the device Step 2 Check whether the network cables are properly connected Step 3 Check whether the LED of the network interface card NIC is on Step 4 Check whether the NIC works in the normal state Step 5 If no fault is identified after the preceding steps ...

Page 51: ... topic describes how to locate a fault when the CATV LED is off Procedure Step 1 Contact the service provider to check whether the CATV service is provisioned Step 2 Check whether the fibers are reliably connected Step 3 Use an optical power meter to measure the downstream optical power and check whether the input requirements are satisfied Step 4 Check whether the combiner works normally End 5 4 ...

Page 52: ...synchronized last The OLT can use the max distance and RTD to calculate EqD and then allocate EqD to the corresponding ONT 3 The difference between the values of min distance and max distance cannot be larger than 20 km 4 If values of min distance and max distance are set properly and accurately in engineering the delay of the transmission between the ONT and the OLT can be reduced l Q What are fu...

Page 53: ...ream traffic currently does the upstream traffic support FEC A Whether the upstream traffic supports FEC is determined by the configuration of the office The ONT supports the FEC configurations in the upstream and downstream directions l Q One T CONT contains multiple GEM ports When CAR is used for flow control priorities of traffic streams in a GEM port are the same When the actual traffic volume...

Page 54: ...th is allocated Check whether the assured bandwidth meets the requirement If the assured bandwidth meets the requirement the bandwidth is allocated directly If the assured bandwidth does not meet the requirement the left bandwidth is labeled and allocated with the bandwidth labeled with tags of T CONT 3 based on the RR algorithm If the bandwidth cannot meet the requirement yet after allocation T C...

Page 55: ...ge Alloc_ID 0 4095 256 Tcont_ID Ont_ID l Q What is the function of the burst optical electrical technology used by the GPON optical port A The burst optical electrical technology is used to enable or disable the laser of a PON port at a burst so that optical signals cannot be mutually affected due to slow enabling or disabling of the laser l Q What is the difference between the single mode optical...

Page 56: ...ble the maintenance IP address of the ONT and select the upgrade file to upgrade The serial port upgrade is performed by engineers in maintenance The upgrade files of ONTs include the following W file This file must be loaded in the CFE mode IMAGE file This file is loaded on the Web page directly It can also be loaded in the CFE mode BIN file This file is loaded on the Web page directly The HG810 ...

Page 57: ...ns The physical specifications of the HG861 include its dimensions weight voltage range and environmental parameters 6 2 Protocols and Standards This topic describes the protocols and standards that the HG861 interface must comply with EchoLife HG861 GPON Terminal 6 Technical Specifications Issue 01 2009 07 30 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 6 1 ...

Page 58: ... power supply 11 VDC to 14 VDC 1 A l Standard power consumption 6 W l Temperature range 0ºC to 40ºC l Humidity range 5 to 95 non condensing 6 2 Protocols and Standards This topic describes the protocols and standards that the HG861 interface must comply with l GPON ITU T G 984 x l GE IEEE802 1p IEEE 802 3ab IEEE802 1q 6 Technical Specifications EchoLife HG861 GPON Terminal 6 2 Huawei Proprietary a...

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