echolife hg813 gpon terminal service manual-(v100r001c01_02)

EchoLife HG813 GPON Terminal Service Manual

HUAWEI TECHNOLOGIES CO., LTD.

EchoLife HG813 GPON Terminal V100R001C01

Service Manual Issue 02

Date 2009-03-16

Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd

Huawei Technologies Co., Ltd. provides customers with comprehensive technical support and service. For any assistance, please contact our local office or company headquarters.

Huawei Technologies Co., Ltd.

Address: Huawei Industrial Base Bantian, Longgang Shenzhen 518129 People's Republic of China

Website: http://www.huawei.com

Email: [email protected]

Copyright © Huawei Technologies Co., Ltd. 2009. All rights reserved. No part of this document may be reproduced or transmitted in any form or by any means without prior written consent of Huawei Technologies Co., Ltd.

Trademarks and Permissions

and other Huawei trademarks are trademarks 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 the preparation of this document to ensure accuracy of the contents, but all statements, information, and recommendations in this document do not constitute the warranty of any kind, express or implied.

Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd

http://www.huawei.com/

mailto:[email protected]

EchoLife HG813 Service Manual Contents

Issue 02 (2009-03-16) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd

i

Contents

About This Document ............................................................................................... 1 Safety Precautions ...................................................................................................... 5 1 System Overview.................................................................................................. 1-1

1.1 Product Introduction.................................................................................................... 1-1 1.2 Front Panel and Rear Panel ......................................................................................... 1-3

1.2.1 Front Panel ...................................................................................................... 1-3 1.2.2 Rear Panel ....................................................................................................... 1-4

2 Installation Guide................................................................................................. 2-1 2.1 Fastening the HG813................................................................................................... 2-1 2.2 Connecting the Cables................................................................................................. 2-2 2.3 Local Manual Upgrade Through Web......................................................................... 2-3

2.3.1 Upgrade Preparation........................................................................................ 2-3 2.3.2 Upgrade Procedure.......................................................................................... 2-3

3 ONT Configuration Guide.................................................................................. 3-1 3.1 Service Overview ........................................................................................................ 3-1 3.2 Introduction to OMCI.................................................................................................. 3-1

3.2.1 OMCI Principles ............................................................................................. 3-1 3.2.2 Setting Up the OMCI Channel ........................................................................ 3-1 3.2.3 Flowchart of OLT Data Configuration............................................................ 3-2

3.3 L3 Data Service........................................................................................................... 3-4 3.3.1 Configuring the L3 LAN Port ......................................................................... 3-4 3.3.2 Enabling the Built-in DHCP Server ................................................................ 3-5 3.3.3 Configuring the WAN Port for the Data Service............................................. 3-6 3.3.4 Querying the Status ......................................................................................... 3-7

4 ONT Downstream User Guide........................................................................... 4-1 4.1 Using the STB............................................................................................................. 4-1 4.2 Using the PC ............................................................................................................... 4-1

5 Troubleshooting.................................................................................................... 5-1 5.1 Fault identification ...................................................................................................... 5-1

Contents EchoLife HG813

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5.2 Troubleshooting Preparations...................................................................................... 5-4 5.2.1 Digital Multimeter........................................................................................... 5-4 5.2.2 Optical Power Meter ....................................................................................... 5-5

5.3 Locating Faults Based On the LEDs on the GPON ONT............................................ 5-8 5.3.1 POWER LED Is Off........................................................................................ 5-8 5.3.2 LINK LED Is Off ............................................................................................ 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

5.4 FAQs ......................................................................................................................... 5-11 5.4.1 FAQs About Configuration........................................................................... 5-11 5.4.2 FAQs About Operation and Maintenance ..................................................... 5-14

6 Technical Specifications...................................................................................... 6-1 A Acronyms and Abbreviations...........................................................................A-1

EchoLife HG813 Service Manual Figures


iii

Figures

Figure 1-1 Networking of the HG813 .............................................................................. 1-2 Figure 1-2 Front Panel of the HG813 ............................................................................... 1-3 Figure 1-3 Rear panel of the HG813 ................................................................................ 1-4 Figure 2-1 Installing the HG813 on the wall .................................................................... 2-1 Figure 2-2 Connections between the HG813 and other devices ....................................... 2-2 Figure 2-3 Opening the auto-shutter................................................................................. 2-3 Figure 2-4 Firmware updating.......................................................................................... 2-4 Figure 3-1 Flor chart for configuring the basic broadband service................................... 3-3 Figure 3-2 Flowchart for configuring the IPTV service ................................................... 3-4 Figure 3-3 Configuring the L3 LAN port ......................................................................... 3-5 Figure 3-4 Enabling the built-in DHCP server ................................................................. 3-5 Figure 3-5 Manually configuring the L3 forwarding parameters of the IP address .......... 3-6 Figure 3-6 Querying the connection status of the WAN port............................................ 3-8 Figure 5-1 Troubleshooting Procedure ............................................................................. 5-1 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 ......................................... 5-7

EchoLife HG813 Service Manual Tables


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Tables

Table 1-1 LEDs of the HG813.......................................................................................... 1-3 Table 1-2 Status of the LINK LED and the AUTH LED .................................................. 1-3 Table 1-3 Ports and buttons on the rear panel of the HG813 ............................................ 1-4 Table 3-1 Parameters of the LAN configuration............................................................... 3-5 Table 3-2 Parameters of the WAN configuration .............................................................. 3-6 Table 5-1 Fault Location and Possible Cause ................................................................... 5-2 Table 5-2 Indexes related to the light on the GPON ONT side......................................... 5-7 Table 5-3 Optical loss parameter table used in the engineering........................................ 5-8

EchoLife HG813 Service Manual About This Document


1

About This Document

Purpose The EchoLife HG813 GPON terminal (hereinafter referred to as the HG813) is an optical network terminal (ONT). It is designed for family users and Small Office and Home Office (SOHO) users.

This document describes the appearance, functions, features, and technical specifications of the HG813. It also describes how to install and remotely maintain the HG813. This document helps you to understand the features and functions of the device.

Related Versions The following table lists the product version related to this document.

Product Name Version

EchoLife HG813 V100R001C01

Intended Audience This document is intended for:

Technical support engineers Maintenance engineers

Organization This document consists of six chapters and is organized as follows.

Chapter Description

1 System Overview This chapter describes the networking, the front panel, and the rear panel of the HG813.

2 Installation Guide This chapter describes how to install the HG813 and connect the cables.

About This Document EchoLife HG813

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Chapter Description

3 ONT Configuration Guide

This chapter describes the remote maintenance through the OMCI technology and L3 data service configuration.

4 ONT Downstream User Guide

Configuring the related operations for ont downstream users.

5 Troubleshooting This chapter describes the common faults identification of the HG813 and provides the corresponding solutions.

6 Technical Specifications

This chapter lists the technical specifications of the HG813 and the applied protocols and standards.

A Acronyms and Abbreviations

The appendix lists the acronyms and abbreviations used in the document.

Conventions

Symbol Conventions The symbols that may be found in this document are defined as follows.

Symbol Description

Indicates a hazard with a high level of risk that, if not avoided, will result in death or serious injury.

Indicates a hazard with a medium or low level of risk which, if not avoided, could result in minor or moderate injury.

Indicates a potentially hazardous situation that, if not avoided, could cause equipment damage, data loss, and performance degradation, or unexpected results.

Indicates a tip that may help you solve a problem or save time.

Provides additional information to emphasize or supplement important points of the main text.

EchoLife HG813 Service Manual About This Document


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General Conventions Convention Description

Times New Roman Normal paragraphs are in Times New Roman.

Boldface Names of files, directories, folders, and users are in boldface. For example, log in as user root.

Italic Book titles are in italics. Courier New Terminal display is in Courier New.

Command Conventions Convention Description

Boldface The keywords of a command line are in boldface.

Italic Command arguments are in italics.

[ ] Items (keywords or arguments) in square brackets [ ] are optional.

{ x | y | ... } Alternative items are grouped in braces and separated by vertical bars. One is selected.

[ x | y | ... ] Optional alternative items are grouped in square brackets and separated by vertical bars. One or none is 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.

GUI Conventions Convention Description

Boldface Buttons, menus, parameters, tabs, windows, and dialog titles are in boldface. For example, click OK.

> Multi-level menus are in boldface and separated by the ">" signs. For example, choose File > Create > Folder.

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Keyboard Operation Format Description

Key Press the key. For example, press Enter and press Tab.

Key 1+Key 2 Press the keys concurrently. For example, pressing Ctrl+Alt+A means the three keys should be pressed concurrently.

Key 1, Key 2 Press the keys in turn. For example, pressing Alt, A means the two keys should be pressed in turn.

Mouse Operation Action Description

Click Select and release the 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.

EchoLife HG813 Service Manual Safety Precautions


5

Safety Precautions

To ensure normal running of the device, read the safety precautions carefully before operating on the device, and comply with the precautions when performing the operations.

Basic Requirements Keep the device dry during storage, transportation, and running of the device. Prevent the device from colliding with other objects during storage, transportation,

and running of the device. Install the device in strict compliance with the vendor requirements. Do not uninstall the device without permission. Contact the specified service center

when a fault occurs on the device. No enterprise or personnel should modify the structure, and security and

performance design of the device without authorization. Abide by the local laws and regulations and respect the legal rights of others when

using the device.

Environment Requirements Install the device in a well-ventilated place that is not directly exposed to sunlight. Keep the device clean. Keep the device away from water sources or wet places. 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. Leave a space of at least 10 cm around the device for heat dissipation. Keep the device away from heat sources or bare fire sources, such as electrical

heaters and candles. Keep the device away from the electrical appliances with strong magnetic fields or

strong electric fields, such as microwave ovens, refrigerators, and mobile phones.

Instruction for Use Use the accessories delivered with the device, or use those recommended by the

vendor, such as the power adapter and battery. The power supply voltage of the device must meet the requirements on the input

voltage of the device. Keep power plugs clean and dry to avoid electric shocks or any other danger.

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Dry your hands before removing or inserting cables. Stop the device and switch off the power before removing or inserting cables. Switch off the power and remove all the cables, including the power cable, optical

fibers, and network cables, from the device during stormy weather. Switch off the power and remove the power plug if the device is shut down for a

long term. Do not let water or other liquid contact the device. If such an accident occurs,

switch off the power immediately and remove all the cables, including the power cable, optical fibers, and network cables, from the device. Contact the specified service center in case of a device failure.

Do not stamp, pull, drag, or excessively bend the cables because they may get damaged, leading to a device failure.

Do not use the cables that have been damaged or aged. Do not stare directly into the optical port on the device to prevent injury to your

eyes. In case of any abnormalities, such as smoke, abnormal sound, or odor, immediately

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.

Prevent foreign objects such as metal objects from dropping into the device through the heat dissipation hole.

Prevent the outer case of the device from being scratched because the paint that is peeled off in the scratched areas can cause device abnormalities. That is, if the paint falls into the device it may cause short circuits. In addition, it can cause an allergic reaction to your body.

Ensure that the device is kept away from children to prevent risks such as swallowing the devices or the accessories.

Instructions for Cleaning Before cleaning the device, stop running it, switch off the power, and remove all

cables, including the power cable, optical fibers, and network cables, from the device.

Do not use cleaning fluid or spray-on detergent to clean the case of the device. Use a soft cloth instead.

Environment Protection Instructions Put the waste device and batteries to the specified recycle place. Abide by the local laws and regulations to handle the packaging materials, run-out

batteries and waste devices.

EchoLife HG813 Service Manual 1 System Overview


1-1

1 System Overview

1.1 Prer

vice provision for service providers, network maintenance staff.

Figure 1-1 shows the networking of the HG813.

oduct Introduction The HG813 is an ONT designed for home users and SOHO users at the user access layof GPON. Adopting the GPON technology, the HG813 connects the home users and SOHO users to the Internet through the optical upstream port. The HG813 supports the ONT management and control interface (OMCI) technology, which can facilitate the automatic and remote serand the remote maintenance and management for

1 System Overview EchoLife HG813

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Figure 1-1 Networking of the HG813

1

7

9

10

11

12

13 14

23

4

56

8

6

1 NMS 2 Internet 3 IPTV 4 PSTN 5 TMG 6 IP network 7 Softswitch 8 VoIP 9 Switch 10 OLT 11 Optical splitter 12 HG813 13 PC 14 IP STB

OLT: optical line terminal

PSTN: public switched telephone network

TMG: trunk media gateway

NMS: network management subsystem

EchoLife HG813 Service Manual 1 System Overview


1-3

1.2 Front Panel and Rear Panel

1.2.1 Front Panel

The actual front panel and rear panel of the HG813 may be different from those shown in this document. The functions of the HG813, however, are the same.

Figure 1-2 shows the front panel of the HG813.

Figure 1-2 Front Panel of the HG813

Table 1-1 and Table 1-2 describe the LEDs of the HG813.

Table 1-1 LEDs of the HG813

LED Status Description On The HG813 is powered on. POWER

Off The HG813 is powered off.

LINK See Table 1-2. See Table 1-2.

AUTH See Table 1-2. See Table 1-2.

On The connection on the Ethernet port is normal.

Off No connection is set up on the Ethernet port.

LAN 1-LAN 4

Blinks Data is being transmitted on the Ethernet port.

The status of the LINK LED and the AUTH LED indicates the connection and registration of the HG813 to the OLT.

Table 1-2 Status of the LINK LED and the AUTH LED

LED Status

LINK AUTH

Description

Off Off The HG813 is in the initiation state.

Blinks (1 Hz) Off The HG813 is ready.

Blinks (3 Hz) Blinks (1 Hz) The HG813 is in the SN authentication state.

Blinks (3 Hz) On The HG813 is in the distance test state.

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LED Status

LINK

Description

AUTH On On The HG813 is in the operation state (normal

working state).

Blinks (3 Hz) Off The HG813 is in the suspended state.

On Off The HG813 is in the emergency-stop state.

1.2.2 Rear Panel

To prevent injury to your eyes, do not look directly at the optical port.

Figure 1-3 shows the rear panel of the HG813.

Figure 1-3 Rear panel of the HG813

Table 1-3 describes the ports and buttons on the rear panel of the HG813.

Table 1-3 Ports and buttons on the rear panel of the HG813

Port/Button Description RESET Reset button

OPTICAL GPON port (SC/APC type), connected with optical fibers to transmit services in the upstream direction

LAN 1-LAN 4 Auto-sensing 100Base-T Ethernet port (RJ-45), connected with the switch or home gateway (HG), or directly with the PC or IP STB

POWER Power port, connected with the power adapter or batteries

ON/OFF On/Off switch, used to power on or power off the HG813

EchoLife HG813 Service Manual 2 Installation Guide


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2 Installation Guide

2.1 Fa

ents, and position of the power supply. To install the HG813 on the wall, do as

les on the wall. Step 4 Mount the shown in Figure 2-1.

l

stening the HG813 Choose the installation position according to the installation requirements, maintenance requiremfollows:

Installing the HG813 on a Wall Step 1 Mark the positions of the two holes used for fastening the HG813 on the wall. The

distance between the two holes is 150 mm. Step 2 Select a proper 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 ho

HG813 on the mounting screws, as

Figure 2-1 Installing the HG813 on the wal

----End

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Installing the HG813 on a Workbench

ject on the HG813. Leave a ect for heat dissipation.

the HG813 on a workbench, do as follows: Step 1 Attach four plastic feet obtained in the delivery accessories to the grooves at the bottom

lace the HG813.

Ensure that the workbench is stable. Do not place any obminimum space of 10 cm between the HG813 and the closest objTo install

of the HG813. Step 2 Choose an appropriate workbench to p

----End

2.2 Connecting the Cables Figure 2-2 shows the connections between the HG813 and other devices.

Figure 2-2 Connections between the HG813 and other devices

1

26

53 4

1 Optical port in the wall 2 Switch or HG 3 PC 4 IP STB 5 PC 6 Power adapter

EchoLife HG813 Service Manual 2 Installation Guide


2-3

Step 1 As shown i -shutter of the port gently with your thumb. The ect the optical fiber.

n Figure 2-3, press the autoauto-shutter ejects outwards automatically. Conn

Figure 2-3 Opening the auto-shutter

The auto-shutter is used to protect the optical port from dust and moisture.

Step 4 ower adapter (input: 100-240 VAC; output: 11-14 VDC) to connect the port of the HG813 with the power socket or connect the POWER port of the

HG813 with batteries.

ough Web

2.3.1 UStep 1

ng the maintenance IP address of the HG813. Step 2 e that the version file (for example, HG813V100R001C01B022_all.bin) to be

upgraded is available in the local PC.

2.3.2 Upgrade Procedure

Step 2 Enter user name telecomadmin and password admintelecom to display the web page. Step 3 Click Maintain > Device > Firmware, as shown in Figure 2-4.

As soon as you remove an optical fiber, the auto-shutter closes automatically.

Step 2 Connect the other end of the fiber to the optical port on the wall. Step 3 Use the Ethernet cable to connect the Ethernet ports (LAN 1-LAN 4) to the upstream

ports on the switch or the HG. Use the pPOWER

----End

2.3 Local Manual Upgrade Thr

pgrade Preparation Configure the IP address of the PC to 192.168.100.100/255.255.0.0. (Note: The local maintenance IP address of the HG813 is 192.168.100.1/255.255.255.0 by default. Use the network cable to connect the maintenance PC to one network port of the HG813.

at the maintenance PC can piEnsure thMake sur

----End

Step 1 Open the browser, and enter the local maintenance IP address of the HG813 (for example, http://192.168.100.1).

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Figure 2-4 Firmware updating

Step 4 Click Browse, and choose the local file to be upgraded (for example, HG813V100R001C01B022_all.bin).

Step 5 Click Update Fireware, and wait for the page to display the successful upgrade. Step 6 Restart the ONT.

----End

EchoLife HG813 Service Manual 3 ONT Configuration Guide


3-1

3 ONT Configuration Guide

You can configure and manage the HG813 from the OLT remotely through the OMCI protocol.

3.1 SeThe HG813 supports the video and data services. The HG813 can be connected to the PC through the Ethernet port to implement the Internet access.

MCI

3.2.1 O

ive messages between the OLT and the ONT.

MCI

the online ONT. Based on

You can configure a specified ONT on the network management interface or command

3.2.2 Sws

rvice Overview

3.2 Introduction to O

MCI Principles Optical network termination management and control interface (OMCI) is the ONT management and control interface protocol defined in ITU-T G.984.4. OMCI defines theformat and the mechanism of the interactOMCI analyzes the service model of the ONT and defines a series of management entities used for the service description. OMCI defines the packet format of the message interaction between the OLT and the ONT and the mechanism of confirmation and retransmission. In this way, the Oprovides a logical channel for communication. After adopting the OMCI protocol, the OLT supports the management and configuration of various ONTs, the offline configuration of the ONT, and the configuration recovery ofthis mechanism, the ONT does not need to save the configuration information locally. This helps to provision services and maintain the terminal.

line interface of the OLT.

etting Up the OMCI Channel The process of setting up the OMCI channel between the OLT and the ONT is as follo(the entire process is performed automatically and no manual operation is required):

Step 1 After being powered on, the ONT interacts with the OLT through the physical layer OAM (PLOAM) message to complete the registration.

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Step 2 the

Afteconfigur T to the ONT through the OMCthrough

From the received PLOAM message, the OLT knows whether the ONT supports the OMCI protocol. If the ONT supports the OMCI protocol, the OMCI channel between OLT and the ONT can be set up. ----End

r the OMCI channel is set up between the OLT and the ONT, the OLT transmits the ation and management information about the ON

I channel, and the ONT uploads its status and alarm information to the OLT the OMCI channel.

The PLOAM protocol is defined in the ITU-T G.984.3 and is used for the operation,

maintenance, and management of the physical layer.

aster device; the ONT is th MCI channel.

OMCI is a master-slave management protocol. The OLT is the me slave device. The OLT controls multiple ONTs through the O

3.2.3 Flowchart of OLT Data Configuration

Flowchart for Configuring the Basic Broadband Service



3-3

adband service Figure 3-1 Flor chart for configuring the basic bro


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Flowchart for C vice onfiguring the IPTV Ser

Figure 3-2 Flowchart for configuring the IPTV service

do as

Step 1

3.3 L3 Data Service

3.3.1 Configuring the L3 LAN Port The L3 LAN port implements the L3 data service. To configure the L3 LAN port, follows: On the navigation tree, choose Basic > LAN, as shown in Figure 3-3.



3-5

F nfiguring the L3 Ligure 3-3 Co AN port

ernet port

Step 3

3.3.2 EStep 1 On the navStep 2

Step 2 Click the Layer3 tab, and select LAN1 or LAN2, indicating that this Eth

functions as the LAN port of the L3 data service. Click Apply. ----End

nabling the Built-in DHCP Server igation tree, choose Basic > LAN.

Click the LAN tab and configure the parameters as shown in Figure 3-4.

Figure 3-4 Enabling the built-in DHCP server

Table 3-1 describes the parameters in the preceding figure.

Table 3-1 Parameters of the LAN configuration

Parameter Description

IP Address Indicates the maintenance IP address of the ONT.

Subnet Mask Indicates the subnet mask.

Enable DHCP Server is Indicates enabling the built-in DHCP server if it selected.


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Start IP Address s pool. Indicates the start IP address of the DHCP IP addres

End IPAddress HCP IP address Indicates the end IP address of the Dpool.

Lease Indicates the DHCP lease period.

Step 3 C pply.

-

3.3.3 Configuring the WAN Port for thTo configure the telephone service, do as follows:

Step 1 O ree,Step 2 Configure the device p

Figure 3-5 uses the ma

igure 3-5 Manually configuring the L3 forwarding parameters of the IP address

lick A---End

e Data Service

n the navigation t choose Basic > WAN, and then click New on the right pane. arameters. nual configuration of the static IP address as an example.

F

Table 3-2 describes the parameters in the preceding figure.

Table 3-2 Parameters of the WAN configuration


enable Choose enable to validate the configuration.

Service List Choosing Internet from the Service List drop-down list.

VLAN ID Indicates the VLAN ID of the user. Range: 1-4094.



3-7

er Description Paramet802.1p Indicates the priority of the traffic stream configured by the

user.

DHCP

Static

PPPoE

DHCP: Obtains the IP address dynamically. Static: Configure the IP address manually. PPPoE: Simulates the PPPoE dialup access mode. You can select one from the three modes.

NAT Indicates the network address translation (NAT).

NAT Type Indicates the NAT type.

Username Indicates the user name for the simulated PPPoE dialup access mode.

Password Indicates the password for the simulated PPPoE dialup access mode.

Binding Options Indicates binding to the L3 LAN port for the data service. The selected LAN port indicates that the WAN port is bound to the LAN port. This WAN port can be considered as a route. Only the LAN port selected in the Layer3 tab can be bound.

Step 3 Click Apply.

----End

3.3.4 Querying the Status After the parameters are configured, you can query the status of the L3 data service channel. The procedure is as follows:

Step 1 Query the connection information about the WAN port. 1. On the navigation tree, choose Status > Device. 2. Click the WAN tab on the top. View the information about the WAN port, such as the connection status, as shown in Figure 3-6.


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Figure 3-6 Querying the connection status of the WAN port

----End

EchoLife HG813 Service Manual 4 ONT Downstream User Guide


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4 ONT Downstream User Guide

4.1 U ing the STBs Step 1

, see 2.2 Connecting the Cables. Make sure that the STB is

Step 2 .

Step 3

the IP address through the PPPoE dialup.

Connect the device. For how to connect the STBconnected properly. Turn on the power supply. Power on the HG813, TV set, and STBConfigure the IP address of the STB. There are three methods for configuring the IP address of the STB.

Configuring the static IP address Obtaining the IP address dynamically through the DHCP server.

Obtaining

The service provider determines a specified m

Enjoy the high-speed video service. ethod.

Step 4 e program according to the prompt.

----End

Step 1 see 2.2 Connecting the Cables. Make sure that the PC is

Step 3

Obtaining p.

Watch th

4.2 Using the PC Connect the device. For how to connect the PC, connected properly.

Step 2 Turn on the power supply. Power on the PC and HG813. Configure the IP address of the PC. There are three methods for configuring the IP address of the PC.

Configuring the static IP address the IP address dynamically through the DHCP server. Obtaining the IP address through the PPPoE dialu

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The service provider determines a specified method.

Step 4 igh-speed data service. Run the Internet explorer (IE) to enjoy surfing on the Internet. Enjoy the h

----End

The PC must be installed with an Ethernet card.

The service provider configures the working parameters of the HG813 remotely and you can enjoy the plug and play without any configuration.

EchoLife HG813 Service Manual 5 Troubleshooting


5-1

5 Troubleshooting

5.1 Fault ide Procedure

ntification Figure 5-1 Troubleshooting

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

LocatinFind the fault location and the cause of the fault. Table 5-1 shows the locating procedure

g a Fault Preliminarily

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Table 5-1 Fault Location and Possible Cause

Fault Category

Possible Cause

ONT Registration Failure

The optical port of the ONT is abnormal. The fiber connected to the ONT is faulty. The optical power of the ONT is not within the normal range. The ONT does not exist. The maximum logic distance configured for the OLT port is inconsistent with the actual distance.

The automatically finding function is disabled on the OLT port. When the ONT is added, the configured SN is inconsistent with the actual MAC address of the ONT.

An ONT with the same SN is already connected to the OLT.

Failure to make a phone call or poor voice quality

The connection between the telephone and the telephone line is abnormal.

The ONT port connected to the IAD is configured improperly. The IAD does not successfully register to the MGC. IAD voice service is not configured with a higher priority. Check and ensure that the connections of the cables are in the normal state.

Check whether the telephone set is normal. The number configured on the ONT is incomplete. The codec configuration and authentication configuration on the ONT are incorrect.

The telephone number is already registered. One or more users are not successfully registered. The voice IP address is not obtained.



5-3

Possible Cause Fault Category

Failed to access the Internet.

The subscriber terminal or the subscriber loop is faulty. The PON port is faulty. The data configuration of the upper-layer device is incorrect. The PON board is faulty. The optical path is faulty. The control board or the uplink interface board is faulty. There are network attacks. Check whether the PC route conflict exists. Check whether the WAN port obtains the address successfully. Check whether the IP address segment obtained by the PC is correct.

Check whether the ONT WAN port and the ONT address can be successfully pinged.

Check whether the WAN MAC of ONT MAC address is all Fs. The NAT conversion function for the bound WAN port is not enabled.

The LAN port is a L2 port, but the PC does not obtain the public network address.

Table 5-1 describes the basic troubleshooting methods.If the fault sympton is not listed in Table 5-1, see Locating a Fault Preliminarily, Checking the Optical Fiber Status, Checking the ONT Status, Checking Device Statistics, Checking the Data Configuration of the Device, and Checking the Upper-layer Device Status in turn for locating the fault.

Checking the Optical Fiber Status To locate a fault caused by the optical fiber, check the following points:

Whether the optical fiber is inserted reliably. Whether the optical fiber is bent excessively. Whether the optical fiber is broken. Whether the average transmit optical power is normal. Whether the receive optical sensitivity is normal.

Checking the ONT Status Check the status LEDs of the ONT. For details, see "5.3 Locating Faults Based On the LEDs on the GPON ONT". You can also check the ONT status online.


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Run the display ont info command to check the ONT information, including Control Flag, Run State, MAC and Config State.

If Control Flag is activated and Run state is up, it indicates that the ONT is normal, that is, the user passes the authentication and gets online.

If Control Flag is activated and Run State is down, it indicates that the user is offline.

If Control Flag is deactivated and the ONT registration is disabled, run the ont activate command in the GPON mode to activate the control flag.

If the configured MAC address is inconsistent with the actual MAC address of the ONT, the registration fails.

If Config State is in the normal state, it indicates that the ONT configuration recovery is in the normal state.

If Config State is in the failed state, it indicates that the ONT configuration restoration fails. The ONT may be bound to an incorrect ONT profile. You can try re-issuing the configuration command or restarting the ONT for troubleshooting the fault.

Checking Device Statistics Query the traffic statistics of the upstream port. Check whether the receive or

transmit traffic exists. Query the performance statistics of the PON port. Query the performance statistics of the ONT.

Checking the Data Configuration of the Device Check the DBA profile bound to the ONT. Check whether the traffic stream configuration is correct. Check whether an upstream port is bound to the VLAN.

Checking the Upper-layer Device Status Check whether the OLT is normal.

5.2 Troubleshooting Preparations

5.2.1 Digital Multimeter A digital multimeter is a simple test meter that is used frequently in the electrotechnical and electronic industries. It is inexpensive, convenient to take, and easy to use, and has complete functions. Basically, the digital multimeter is used to measure the resistance, DC voltage, AC voltage, current, capacitance, diode, and triode. The procedure is as follows:



5-5

Step 1 Turn of the power supply. Step 2 Select the functions to be tested. (When a digital multimeter that does not have a

dedicated power switch, combine Step 1 and Step 1.) Step 3 Choose a proper range. Step 4 Perform the measurement correctly. Step 5 (Optional) Press the button for maintaining the current value unchanged. Step 6 Read the measurement value.

----End

5.2.2 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 is an important index in the optical fiber network. When the optical power is smaller than a certain value, the optical receive end cannot detect optical signals, that is, the optical receive end cannot receive signals sent from the transmit end. In conclusion, mastering the usage of the optical power meter is very important. The following takes the optical power meter used by the GPON ONT development team as an example to describe how to use the optical power meter. The model of this optical power meter manufactured by EXFO is PPM-350B. The usage of other special PON optical power meters is similar to the usage of the PPM-350B optical power meter. The PPM-350B optical power meter is an optical power measurement meter designed by EXFO for measuring the optical power of various wavelengths, including 1310 nm, 1490 nm, and 1550 nm in the GPON. Figure 5-2 shows the apperance of the PPM-350B.


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Figure 5-2 Appearance of the PPM-350B

According to Figure 5-2, the differences between the PPM-350B optical power meter and common optical power meters are that the PPM-350B optical power meter has a downstream input optical port and an upstream input optical port, and can display the optical power of three wavelengths, that is, 1310 nm, 1490 nm, and 1550 nm. Figure 5-3 shows the common measurement points.

Figure 5-3 Schematic 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



5-7

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

Parameter Type Wavelength (nm)

Unit MIN MAX

Upstream data 1310 dB +0.5 +5

Downstream data 1490 dB -27 -8 Downstream CATV

1550 dB -8 +2

The indexes in Table 5-2 are calculated according to the GPON 984.2 Class B+ Protocol. In the actual calculation, the insertion loss must be considered. Therefore, it is recommended that 1 dB margin should be reserved in the deployment. To use an optical power meter, do as follows:

Step 1 Connect optical fibers to the upstream and downstream optical ports correctly. Step 2 Turn on the power supply. Step 3 Choose the measurement unit (dB or mW). Step 4 Perform the measurement.

----End

Figure 5-4 shows the measurement interface of the optical power meter.

Figure 5-4 Measurement interface of the optical power meter

The 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,the parameters in Table 5-3 can be used to estimate the optical path attenuation.


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Table 5-3 Optical loss parameter table used in the engineering

Board Name Average Loss (dB) Connector 0.3

Mechanical connection

0.2

Connecting point

Fusion splicing 0.1

1:64 19.7

1:32 16.5

1:16 13.5

1:8 10.5

1:4 7.2

Optical splitter

1:2 3.2

1310nm (1 km) 0.35 Optical fiber (G.652) 1490nm (1 km) 0.25

Optical channel loss = L x a + n1 x b + n2 x c + n3 x d + e + f (dB)

a indicates the average loss of the optical fiber per kilometer (dB/km). L indicates the total

length of the optical fiber (unit: km). The loss of the optical fiber jumper and fiber patch cord used in the engineering can be ignored because of short length.

b indicates the loss of a spliced point (dB) and n1 indicates the number of spliced points.

c indicates the loss of a mechanical connection point (dB) and n2 indicates the number of mechanical connection points.

d indicates the loss of a connector (dB) and n3 indicates the number of connectors.

e indicates the loss of the optical splitter. Only L1 optical splitting is considered. In the case of L2 optical splitting, the loss of two optical splitters must be considered separately.

5.3 Locating Faults Based On the LEDs on the GPON ONT

5.3.1 POWER LED Is Off Check whether the power adapter matches the device.

Step 1 Check whether the power cables are properly connected. Step 2 Check whether the On/Off button on the rear plane has been turned on. Step 3 Check whether the mains supply is normal. That is, whether the mains supply meets the

requirement of Huawei's product.



5-9

Step 4 Check whether the input voltage for the board is in the normal state. The normal voltage for the DC is 11 V-14V. ----End

5.3.2 LINK LED Is Off Check whether the optical fibers are properly connected.

Step 1 Measure the optical power of the 1490-nm wavelength in the downstream direction by using an optical power meter. Check whether the optical power meets the preceding input requirement of the GPON ONT.

Step 2 If the optical power does not meet the input requirement of the GPON ONT, check whether the section of the optical fiber connected to the ONT is clean. Wipe the section in one direction with special papers for wiping optical fibers or lens of cameras.

Step 3 Measure the optical power of the 1490-nm wavelength in the downstream direction again 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 4 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 cameras.

Step 5 If the fault persists, measure the voltage of the end connecting the resistance R378 on the board and the optical transceiver if the condition is proper. Make sure that the optical fiber link is connected properly. If the level is low, it indicates that the optical transceiver is damaged. Otherwise, the CPU is faulty. If the optical transceiver is damaged, replace the optical transceiver. Otherwise, it is recommended that you return the ONT for repair. ----End

5.3.3 LINK LED Is On but AUTH LED Is Off The ONT fails to register with the OLT. Generally, the cause for this fault is that the downstream input data is incorrectly restored. Therefore, check whether the input optical power is correct.

5.3.4 LINK LED and AUTH LED Blink The LINK LED and the AUTH LED blink, it indicates that the ONT fails to register. The following describes the fault location methods. Check whether the SN is set correctly.

Step 1 Check whether the input optical power is very small. Step 2 Check whether the ONT is set to work in the continuous mode. If the ONT is set to work

in the continuous mode, this fault is severe and other ONTs may not go online. Use the continuous optical power meter to measure the optical power. If any data can be displayed by the optical power meter, it indicates that the device is in the continuous light-emitting mode. If the LINK LED and the AUTH LED are set to the continuous mode, cancel the setting.

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----End

5.3.5 LAN LED Is Off Check whether the network cables match the device.

Step 1 Check whether the network cables are properly connected. Step 2 Check whether the LED of the network interface card (NIC) is on. Step 3 Check whether the NIC works in the normal state. Step 4 If no fault is identified after the preceding steps are performed, ping the maintenance IP

address 192.168.100.1 of the ONT from the PC. Check whether the ping operation is successful. Note that the IP address of the PC should be in the subnet 192.168.100.x. If the ping operation is successful, check whether the port loopback or GEM port loopback are preset on the local port and whether the port negotiation is correct. Query the GEM port loopback. MA5600T(config-if-gpon-0/3)#display gemport { desc<K>|portid<0,3> }:0 { <cr>|gemportid<K> }:gemportid 184 Command: display gemport 0 gemportid 184 ------------------------------------------------------------------ GEM port ID Serv-Type Encrypt Cascade Loopback ------------------------------------------------------------------ 184 ETHERNET off off no loopback ------------------------------------------------------------------

Query the ONT port loopback and port attributes. MA5600T(config-if-gpon-0/3)#display ont port { attribute<K>|priority-policy<K>|q-in-q<K>|state<K>|vlan<K> }:attribute { portid<0,3> }:0 { ontid<0,63> }:9 { port-type<E><e1,eth,catv> }:eth Selects the type of the network port. Generally, the network port is of the eth type. { <cr>|ont-portid<1,40> }:2 Command: display ont port attribute 0 9 eth 2 ----------------------------------------------------------------------------- ONT-ID ONT ONT Negotiation Speed Duplex Port Flow Loopback port-ID port-type (Mbps) state control



5-11

---------------------------------------------

2 ETH auto auto auto on off no pback

---------------------------------------------

Step 5 nce IP address of the ONT cannot be pinged, repeat step 4 on another

Step 6 e LSW circuit in the board is faulty. Please contact ustomer service center.

----End

N port must be globally unique when the OLT

t ONTs.

service. If this parameter is set to Yes, twice of the

T

interrupted, which is

port?

and the ONT. The OLT opens windows to receive a ranging response

istance and RTD to calculate EqD and then allocate EqD to the

etween the values of min-distance and max-distance cannot be larger

engineering, the delay of the transmission between the ONT and the OLT can be reduced

-------------------------------- 9 loo --------------------------------

If the maintenanetwork port. If the fault persists, it indicates that thHuawei c

5.4 FAQs

5.4.1 FAQs About Configuration Q: What parameters of a POprovides multiple services? A: GEMPORT-ID, ALLOC-ID, and ONT-ID. TCONT-ID and USER-VLAN-ID, however, can be used repeatedly in differenQ: What is the meaning of bandwidth_compensate in a T-CONT profile? This parameter is specific to the TDMconfigured bandwidth is allocated. Bandwidth compensation: Yes: Data cannot be transmitted during ranging, and the OLopens windows to search for new SNs periodically. Therefore, twice of the fixed bandwidth is configured to ensure that the TDM service is notimplemented through the bandwidth compensation function. Q: What are functions of setting min-distance and max-distance for a GPONA: huawei(config-if-gpon-0/12)#port 1 range min-distance 10 max-distance 15 Run the preceding command to set the min-distance and max-distance for ranging between the OLTfrom the ONT. Max-distance indicates the radius of the concentric circle that is synchronized last. The OLT can use the max-dcorresponding ONT. The difference bthan 20 km. If values of min-distance and max-distance are set properly and accurately in

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Q: What is the difference in the data configuration when the ONT is connected to a PC or a switch? The FE or GE port of the ONT functions as an external interface of the LSW. Therefore, when an ONT is connected to a PC or a switch, the configuration is similar to the configuration when an LSW is connected to a PC or a switch. The configuration when the ONT is connected to the PC is displayed as follows: MA5680(config-if-gpon-0/1)#ont port vlan //Adds the port of the ONT to a VLAN. { portid<0,3> }:0 //Selects the PON port. { ontid<0,63> }:0 //Selects the ONT ID. { vlanid<0,4095> }:9 //ID of the VLAN to which the port is added. { ont-portlist<S><1,100> }:0 //ID of the ONT port. MA5680(config-if-gpon-0/1)#ont port native-vlan 0 0 fe 0 vlan 9 //Sets the native VLAN of the port is consistent with the VLAN of the port, which can interwork with the PC.

The configuration when the ONT is connected to the switch is displayed as follows: MA5680(config-if-gpon-0/1)#ont port vlan 0 0 fe 9 0 //Add the ONT port to VLAN 9 to transparently transmit data of VLAN 9 tag.

After the configuration, you can run the following command to query the result: MA5680(config-if-gpon-0/1)#display ont port vlan { portid<0,3> }:0 { ontid<0,63> }:0 { byport<K>|byvlan<K> }:byport { iphost<K>|fe<K>|ge<K>|moca<K> }:fe { ont-portid<0,31> }:0 Command: display ont port vlan 0 0 byport fe 0 ------------------------------------------------------ port-type: FE ont-portid: 0 vlan-list: 1,9 native-vlan: 1 priority: 0 -----------------------------------------------------

Only the VLAN added with a port can be set to the default VLAN. The native VLAN and VLAN of an ONT port are VLAN 1 by default. The number of VLANs that an ONT can be added to is limited. Generally, an ONT port can be added to up to eight VLANs. Q: What are functions of the deactivate and activate commands of the MA5680T on an ONT? A: huawei(config-if-gpon-0/12)#ont deactivate 1 0

5-13

A: The deactivate command is used to disable the optical transceiver of an ONT, that is, to stop sending and receiving optical signals of the 1310-nm wavelength. The ONT can still receive optical signals of the-1490 nm wavelength sent from the OLT. huawei(config-if-gpon-0/12)#ont activate 1 0

Activate the optical transceiver of the ONT to recover the ONT service. Q: Why does the VoIP service fail to be provided when the IP address of an ONT is configured through the CLI? A: In the case of version V800R005C01B079 and later versions, all configurations of the IAD are packed as a file through the NMS and then delivered to ONTs over the OMCI during the service provision of the ONT. This configuration file contains the IAD configurations and IP addresses. Therefore, the ONT does not run the commands for configuring the IP address from the OLT after the service provisioning is implemented. Through the preceding analysis, use any of the following two methods to configure the ONT during the configuration of the VoIP service.

Method 1: Provide services and configure ONTs through the NMS. Method 2: Telnet to the ONT management interface through the CLI to configure the

IP address of the ONT and the MGCP information. Method 1 is used in the service provisioning and method 2 is used in the deployment test. Q: How to add an ONT to the OLT? A: Enable the auto-find function of the GPON port. huawei(config-if-gpon-0/1)#port 0 ont-auto-find enable

After the OLT can communicate with the ONT normally, the ONT reports its SN. Specify the ONT ID and the ONT profile, and add an ONT. huawei(config-if-gpon-0/1)#ont add { portid<0,3> }:0 //GPON port ID { sn-value<S><13,13>|ontid<0,63> }:1 //Specified ONT ID { sn-value<S><13,13> }:hwhw-11111111 //Reported SN { sn-auth<K>|password-auth<K> }:sn-auth //Authentication mode { profile-id<K>|profile-name<K> }:profile-id { profile-id-value<1,128> }:2 //ONT profile ID { <cr>|desc<K> }: Command: ont add 0 1 hwhw-11111111 sn-auth profile-id 2

Q: What are functions of setting min-distance and max-distance for a GPON port? A: huawei(config-if-gpon-0/12)#port 1 range min-distance 10 max-distance 15

Run the preceding command to set the min-distance and max-distance for the ranging between the OLT and an ONT. The OLT opens windows to receive a ranging response from the ONT.


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Max-distance indicates the radius of the concentric circle that is synchronized last. The OLT can use the max-distance and RTD to calculate EqD and then allocate EqD to the corresponding ONT. The difference between the values of min-distance and max-distance cannot be larger than 20 km. 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.

5.4.2 FAQs About Operation and Maintenance Q: FEC is valid only for the downstream 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. 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 of all the GEM ports is greater than the bandwidth preset in the T-CONT profile, what is scheduling mode adopted by the ONT? A: In this case, the ONT uses the round mode, that is, equal allocation. For example, allocate 30 Mbit/s traffic to the T-CONT profile, 20 Mbit/s traffic to GEM port 1, and 25 Mbit/s traffic to GEM port 2. In this case, the actual traffic volume is that 15 Mbit/s for GEM port 1 and 15 Mbit/s for GEM port 2. Q: How does the ONT priority mapping? A: There are eight priorities for packets, and four queues in the chip. The mapping is shown as follows: 6, 7 -> 0 High 4, 5 -> 1 2, 3 -> 2 0, 1 -> 3 Low Q: What are the purpose and method of OLT ranging in the GPON system? A: The purpose of ranging in the GPON system is to ensure the same time reference for all ONTs connected to one PON port. In this way, the time division multiplexing (TDM) mode of the upstream data can be implemented. The method of ranging in the GPON system is to perform delay compensation for all ONTs connected to one PON port so that the ONTs are logically at the same location as the ONT that is in the furthest distance from the OLT. Q: How does the GPON system bear the triple play service? A: The GPON system bears the triple play service in the following modes:

Single GEM port for multiple services Multiple GEM ports for multiple services



5-15

One TCONT is bound to one GEM port in the upstream direction One TCONT is bound to multiple GEM ports in the upstream direction

Q: What are differences between the five types of T-CONTs in the GPON system? A: In the case of T-CONT 1, the bandwidth is allocated statistically. The assured bandwidth is the maximum configured bandwidth and the bandwidth of T-CONT 1 is allocated with a priority. In the case of T-CONT 2, only the assured bandwidth of users is guaranteed. If the assured bandwidth exceeds the maximum bandwidth, the maximum bandwidth is allocated. In the case of T-CONT 3, the assured and non-assured bandwidths are allocated. If the requested bandwidth can be ensured, the bandwidth is allocated directly upon request. Otherwise, the left bandwidth that cannot be allocated is labeled and allocated with the bandwidth labeled with tags of T-CONT 5 based on the round robin (RR) algorithm. In the case of T-CONT 4, the non-assured bandwidth is allocated. After the assured bandwidth is allocated, the left bandwidth and the left bandwidth of T-CONT 5 in the requested bandwidth are allocated based on the RR algorithm. In the case of T-CONT 5, hybrid bandwidth 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-CONT 5 competes with T-CONT 4 for the left bandwidth. Q: What are the specifications of the GEM port in the GPON system? A: The specifications of the GEM port in the GPON system are as follows:

In the case of the MA5680T, 16 K (ID: 0–4095). In the case of the single PON port: 4096 (ID: 0–4095). Reserved: OMCIs (ID: 0–127), service configuration (ID: 128–3999), and others (ID:

4000–4095 for multicast and broadcast services, and invalidity). Each GEM port supports the mapping of up to eight streams and the priority ranges

from 0 to 7. Q: What is the difference between two DBA modes in the GPON, that is, SR and NSR? A: The difference between the SR and NSR is whether the ONT supports the function of reporting the bandwidth. If the ONT supports this function, the SR is used by default. The ONT reports its bandwidth requirement and the OLT allocates the bandwidth to the ONT according to the left bandwidth and a specific algorithm. If the ONT does not support this function, the OLT allocates the bandwidth to the ONT according to the percentage of idle frames filled in the ONT to the bandwidth. Q: What are the specifications of the upstream VLANs and user VLANs of the MA5680T? A: The specifications of the upstream VLANs and user VLANs of the MA5680T are as follows:


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Upstream VLAN: Service 4 K (VLAN ID: 1–4093) Reserved: 15 VLANs for the system (not be used for all) and the range is configurable (ID: 4079–4093) Used for AOE/TOP/BTV/Stacking/DBGENT/VOIP/MPLS Number of user VLANs: 4096 (VLAN ID: 1–4095). The specific number of VLANs is determined by the ONT. Q: How is the DBA implemented in the GPON? A: Dynamic bandwidth allocation (DBA) is a mechanism used to dynamically allocate the upstream bandwidth of ONTs of the GPON within microseconds or milliseconds. It can increase the bandwidth usage of PON ports of the OLT in the upstream line in an office in the GPON, and add more users to a PON port so that users can share services requiring larger bandwidth, especially the services that have large bandwidth burst. The DBA is implemented as follows: The embedded DBA module of the OLT continuously collects DBA reports, performs related calculation, and then issues the calculation results to ONTs through downstream frames in the form of BWMap. According to the BWMap information, the ONTs send upstream data in the timeslots allocated to them, and occupy the upstream bandwidth. Q: How many T-CONTs are there in an MA5680T and What is the range of T-CONT IDs? A: The number of T-CONTs and range of T-CONT IDs are as follows:

A: There are 256 T-CONTs in a single PON port. The maximum split ratio of a PON port is 1:64 and each ONT has four T-CONTs on average.

The range of T-CONT IDs is from 0 to 7. T-CONT 0 is reserved for OMCI. It must be configured with the bandwidth larger than 5 Mbit/s.

Each ONT can be allocated with three T-CONTs on average. Alloc_ID: 0-4095 (256*Tcont_ID + Ont_ID). 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. Q: What is the difference between the single-mode optical fiber and multi-mode optical fiber? A: The single-mode optical fiber is an optical fiber that can transmit only one optical signal (with one type of wavelength) at a time. With the inner diameter of smaller than 10 microseconds, the single-mode optical fiber is used for long-distance transmission of signals at a high speed. The core of the multi-mode optical fiber has a longer circumference than the core of the single-mode optical fiber. The multi-mode optical fiber can be used for multi-mode transmission. It provides multiple transmission channels, which have transmission delay. The stability of the transmission channels degrades with the transmission distance and the bandwidth is limited. The multi-mode optical fiber can be used to transmit more than



5-17

one optical line, which has different refractive indexes. The diameter of the core of the multi-mode optical fiber is longer than the wavelength of the light source. Q: Why must the distance between two ONTs that are the furthest away from and nearest to the OLT respectively be within 20 km? A: The GPON protocol processes the upstream traffic in the TDM mode. The duration of encapsulating a frame is 125 us. During the periodical ranging of ONTs connected to one PON port, the OLT must detect all ONTs connected to the PON port within 125 us. That is, requests for upstream bandwidths from all ONTs must be received by the OLT within a ranging period of 125 us. In addition, the speed of light is fixed. Therefore, the maximum distance between two ONTs that are the furthest away from and nearest to the OLT respectively must be limited to 20 km. Q: What are methods for GPON ONT upgrade and what are their differences? A: There are two methods for GPON ONT upgrade: OMCI remote upgrade and local upgrade. The OMCI upgrade indicates the remote upgrade for the ONT in the office or on the upper layer device such as the NMS, which is invisible for users. The local upgrade involves the Web upgrade and serial port upgrade. The user can performs the Web upgrade, that is, enable the maintenance IP address of the ONT and select the upgrade file to upgrade. The serial port upgrade is performed by engineers in maintenance. A: 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, HG810a, HG850, HG865, OT550, and HG851 can be upgrade by running commands through telnet. Differences between three files are as follows:

The .W file is the upgrade file for earlier versions. When the .W file is upgraded, the basic input/output system (BIOS) and user programs are upgraded.

When the .IMAGE file is upgraded, the BIOS and user programs are upgraded. When the .BIN file is upgraded, the BIOS is not upgraded.

Currently, ONTs of Huawei's use .BIN file for upgrade.

EchoLife HG813 Service Manual 6 Technical Specifications


6-1

6 Technical Specifications

Physica

-T Ethernet ports (RJ-45)

utton

Protoco

, IEEE 802.3u, IEEE802.1q, and IEEE 802.3ab

Physicax 163 mm x 45 mm

C, 1 A

Humidity range: 5% to 95% (non-condensing)

l Ports One power port

port One optical upstream Four auto-sensing 100Base One RESET button One power switch b

ls and Standards GPON: ITU-T G.984.x ETH: IEEE802.1p

l Specifications Dimensions (length x width x height): 212 mm Weight: about 500 g

-60 Hz Power adapter input: 100-240 VAC, 50 VD Whole-device power supply: 11-14

Standard power consumption: < 10 W Temperature range: 0°C to +40°C

EchoLife HG813 Service Manual A Acronyms and Abbreviations


A-1

A Acronyms and Abbreviations

A AC lternating Current

RAS roadband Remote Access Server

ation Protocol NS omain Name System

g TTH iber To The Home

PON igabit-capable Passive Optical Network

PTV ternet Protocol Television

MS etwork Management System

on and Maintenance

A

B B B D DC Direct Current DHCP Dynamic Host ConfigurD D F FTTB Fiber To The BuildinF F G G G I IP Internet Protocol I In N N N O

OAM Operation, Administrati

A Acronyms and Abbreviations EchoLife HG813

Service Manual

A-2 Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd

Issue 02 (2009-03-16)

ce NT ptical Network Terminal

DR ptical Time Domain Reflectometer

PPoE oint-to-Point Protocol over Ethernet TN ublic Switched Telephone Network

OHO mall Office and Home Office B et-Top Box

DMA ime Division Multiple Access G runk Media Gateway

V VoIP Voice over IP

OLT Optical Line Terminal OMCI ONT Management and Control InterfaO OOT O P P2MP Point to Multi Point PC Personal Computer PLOAM Physical Layer OAM PON Passive Optical Network P PPS P S S SST S T T TTM T

HUAWEI TECHNOLOGIES CO., LTD.Huawei Industrial Base

Bantian, LonggangShenzhen 518129

People's Republic of China

www.huawei.com

echolife hg813 gpon terminal service manual-(v100r001c01_02)

Documents

huawei trademarks

huawei proprietary

huawei industrial base

local manual upgrade

rear panel

upgrade preparation

i contents

upgrade procedure