FCC ID: QISEA680-950 LTE DAU

DAU eA680 Quick Installation Guide HUAWEI TECHNOLOGIES CO., LTD. Install the DAU eA680Mounting on a Utility Pole Insert the SIM card Insert the hose clamp to the mounting frame

(Optional) Install the angle adjusting component on the mounting frame and adjust the angle Install the hose clamp on the utility pole and adjust the length of the hose and fix it Install the DAU on the mounting frame 3-a Loosen the bolt of hose clamp. 3-b Adjust the length of the hose clamp. 3-c Fasten the bolt of hose clamps to fix the length of the hose clamp. 3-d Use the M6 hex key to tighten the bolt and fix the hose clamp completely. 1 Install the DAU eA680Mounting on the Wall Insert the SIM card Marking the fixing points Installing the expansion bolt Fix the DAU on the wall-mounting frame. Fix the wall-mounting frame to the wall. 2 Huawei Technologies Co., Ltd. Huawei Industrial Base Bantian, Longgang Shenzhen 518129 People's Republic of China Website: http://www.huawei.com Email: support@huawei.com Customer Service Tel: 4008302118 Issue: 01 Part number: 31010WRH Install the Cables of DAU eA680 Installing the PGND Cable Install the POE Network Cable Make the POE Network Cable Strip the cable Strip the PET Cut the unnecessary rip-

cord Distribute the wires Assemble the ferrules and cut the surplus cables Insert the netw ork cable into the crystal connector. Use the crimping tool to press the crystal connector NoticeDonot press the outer-jacket into the crystal connector. For more details, please refer to eA680 Series LTE DAU User Guide. You can download the eA680 Series LTE DAU User Guide in the following path of http://support.huawei.com/ enterprise :

Support > Product Support > Enterprises Wireless > eLTE Broadband >

eLTE Broadband Terminal. 3 Safety Information Following All Safety Precautions Before any operation, read the instructions and precautions in this document carefully to minimize the possibility of accidents. The Danger, Caution, and Note items in the documents do not cover all the safety precautions that must be followed. They only provide the generic safety precautions for operations. When operating Huawei products and equipment, you must comply with safety precautions and special safety instructions related to the equipment provided by Huawei. The safety precautions in the document are related to only Huawei products. Huawei is not liable for any consequence that results from the violation of universal regulations for safety operations and safety codes on design, production, and equipment use. Complying with the Local Safety Regulations When operating the device, comply with the local safety regulations. Qualified Personnel Only The installation and maintenance personnel of Huawei equipment must be trained and master the correct operating methods and safety precautions before beginning work. Safety of Personnel The AC power supply provides power for running the system. Direct contact with the high voltage power supply or contact through damp objects may result in serious injury. In a thunderstorm, do not perform operations on high voltage and AC power supply facilities or on a steel tower and mast. Power off the device before performing operations on the power supply equipment. Protect yourself when drilling holes. Flying dust may hurt your eyes or you may inhale the dust. When working at a height, be cautious about falling objects. Device Safety Leave space around the device for heat dissipation. Keep the device away from heat and fire, for example, electric heaters and candles. Do not disassemble the device. When the device has a fault, contact the operator. Ensure that the device is always kept in a dry environment. If any liquid leaks through the device, power off the device and contact the operator. If you detect smoke, unusual sound, or smell emanating from the device, unplug the device immediately. Power off the device during thunder and lightning. Do not hang anything on the power cable or plug. Do not cover the device. Before cleaning the device, unplug it. Use a soft, dry cloth to clean the device exterior. Ensure that the power plug is clean and dry. Do not use a damaged or aged power cable. Power on an DAU within 24 hours after unpacking it. If you power off an DAU for maintenance, restore power to the DAU within 24 hours. To avoid direct lightning, DAU must be installed in the protection angle of 45 degrees below a separate lightning rod, or protection angle of 45 degrees below a surrounding high-rise building. Environmental protection This product complies with the design requirements for environmental protection. The storage, use, and placement of the product must follow national laws and regulations. Privacy Policy To better understand how we protect your personal information, please see the privacy policy at http://consumer.huawei.com/privacy-policy. 4

eA680-950 LTE DAU User Guide Issue Date 01 2017-03-03 HUAWEI TECHNOLOGIES CO., LTD. Copyright Huawei Technologies Co., Ltd. 2016. 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 purchased products, services and features are stipulated by the contract made between Huawei and the customer. All or part of the products, services and features described in this document may not be within the purchase scope or the usage scope. Unless otherwise specified in the contract, all statements, information, and recommendations in this document are provided "AS IS" without warranties, guarantees or representations of any kind, either express or implied. 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 a warranty of any kind, express or implied. Huawei Technologies Co., Ltd. Address:

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

http://www.huawei.com Email:

support@huawei.com Issue 01 (2017-03-03) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. i eA680-950 LTE DAU User Guide About This Document About This Document Overview This document describes the hardware, functions, installation, configuration, operation and maintenance (OM) of the eA680-950 customer premises equipment (DAU). Product Version V100R001C00 Product Version Product Name eA680-950 Intended Audience This document is intended for:

System engineers Product engineers Technical support engineers Issue 01 (2017-03-03) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. ii eA680-950 LTE DAU User Guide Contents Contents About This Document ............................................................................................................ ii 1 Overview ................................................................................................................................ 1 1.1 Product Introduction ............................................................................................................................................................. 1 1.2 Application Scenarios ........................................................................................................................................................... 1 1.3 Hardware Specifications....................................................................................................................................................... 4 1.4 Antenna Specifications ......................................................................................................................................................... 5 1.5 Software................................................................................................................................................................................. 6 1.6 Product Security .................................................................................................................................................................... 7 1.6.1 Network Security ............................................................................................................................................................... 7 1.6.2 Application Security .......................................................................................................................................................... 8 1.7 Device Ports ........................................................................................................................................................................ 10 1.7.1 Web Port ........................................................................................................................................................................... 10 1.7.2 USB Port .......................................................................................................................................................................... 11 1.7.3 TR-069 Port ...................................................................................................................................................................... 12 2 Hardware .............................................................................................................................. 14 2.1 eA680-950 Hardware ......................................................................................................................................................... 14 2.2 eA680-950Cables................................................................................................................................................................ 17 2.2.1 PoE Network Cable ......................................................................................................................................................... 17 2.2.2 Ground Cable ................................................................................................................................................................... 18 3 Installation ........................................................................................................................... 19 3.1 Site Preparations ................................................................................................................................................................. 19 3.2 Installation Preparation ....................................................................................................................................................... 20 3.3 Installation Procedure ......................................................................................................................................................... 22 3.3.1 Mounting on a Utility Pole.............................................................................................................................................. 22 3.3.2 Mounting on the Wall ...................................................................................................................................................... 26 3.3.3 Cable Connection............................................................................................................................................................. 32 3.4 Installation Check ............................................................................................................................................................... 35 4 Configuration Introduction ................................................................................................ 38 4.1 Log in to the WebUI ........................................................................................................................................................... 38 5 Maintenance ......................................................................................................................... 39 5.1 Maintenance Preparation .................................................................................................................................................... 39 Issue 01 (2017-03-03) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. iii eA680-950 LTE DAU User Guide Contents 5.2 Fault Diagnosis ................................................................................................................................................................... 39 6 FAQ ....................................................................................................................................... 41 6.1 What Do I Do If the Web UI Fails to Be Opened? ........................................................................................................... 41 6.2 What Do I Do When Power Indicator Is Not Working? ................................................................................................... 41 6.3 What Do I Do When the Data Service Is not Provided? .................................................................................................. 42 7 Privacy and Security ............................................................................................................ 43 7.1 Privacy Policy ..................................................................................................................................................................... 43 7.2 Security Maintenance ......................................................................................................................................................... 43 7.3 Performing Default Security Configuration ...................................................................................................................... 43 8 FCC warning ........................................................................................................................ 45 This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: ........................................................................... 45 9 Acronyms and Abbreviations............................................................................................. 46 Issue 01 (2017-03-03) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. iv eA680-950 LTE DAU User Guide 1 Overview 1 Overview About This Chapter This section describes the functions, applications, and specifications of the product. 1.1 Product Introduction The Huawei eA680-950 V1R1 outdoor DAU are the Long Term Evolution (LTE) customer premises equipment (DAU). As a wireless gateway, it can be deployed outdoors to provide services such as data collection and video surveillance. The eA680-950 provides the following functions:

Data service Wi-Fi Service Security service Local and remote maintenance and management Data routing. 1.2 Application Scenarios The eA680-950 is specially designed for outdoor deployment to obtain better wireless access performance to the LTE network. The eA680-950 can be deployed in wISP, industrial, public security and enterprise network if the performance is acceptable to the network operator. Issue 01 (2017-03-03) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 1 eA680-950 LTE DAU User Guide Figure 1-1 The eA680-950 deployed in wISP network 1 Overview Figure 1-2 The eA680-950 deployed in industrial network The following example describes how to use the eA680-950 for video monitoring. 1. Use a power adapter to supply power for the eA680-950 or video camera, as shown in Figure 1-3. Issue 01 (2017-03-03) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 2 eA680-950 LTE DAU User Guide Figure 1-3 The eA680-950 connected to a video camera. 1 Overview 2. Use a network cable to connect the eA680-950 to an external device. If the eA680-950 connects to a single device, connect the power adapter directly to the eA680-950. If the eA680-950 connects to multiple devices, connect the power adapter to a Hub or switch and then to the eA680-950, as shown in Figure 1-4. Figure 1-4 The eA680-950 connected to multiple devices Issue 01 (2017-03-03) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 3 eA680-950 LTE DAU User Guide 1.3 Hardware Specifications 1 Overview Table 1-1 describes the technical specifications of eA680-950. Table 1-1 Hardware specifications of eA680-950 Category Description Technical standard WAN: LTE 3GPP Release 11 LAN: IEEE 802.3/802.3u WLAN: IEEE 802.11b/g/n Working frequency band LTE LTE TDD 5.8G: 5725 MHz to 5850 MHz WLAN 2400MHz to 2483.5MHz External interface 1 Ethernet interface (RJ45): 10/100Base-TX 1 USB interface 2 External antenna interface (N type Female connector) 1 SIM card slot LED indicator One POWER indicator One CONNECT indicator One RSSI indicator One HEAT indicator Maximum transmit power LTE: 23 dBm (2) WLAN: 16dBm(2 dB) Receiving sensitivity LTE:

< -96 dBm/5 MHz

< -93 dBm/10 MHz

< -90 dBm/20 MHz WLAN:

802.11b: -92 dBm@1 Mbps,

-85 dBm@11 Mbps 802.11g: -88 dBm@6 Mbps

-73 dBm@54 Mbps 802.11n:

HT20-87 dBm@MCS0

-71 dBm@MCS7 HT40-84 dBm@MCS0

-68 dBm@MCS7 Power consumption

<25W when heater works

<12W when heater off Issue 01 (2017-03-03) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 4 eA680-950 LTE DAU User Guide 1 Overview Category Power supply Description POE comply with IEEE802.3at Dimensions (WDH) 285 mm x 250 mm x 85 mm;

Weight About 3kg (The power supply adapter is not included) Water and dust proof IP65 Temperature Humidity Installation Working temperature: -40~ +55 Storage temperature: -40 ~ +70 5% ~ 95%

Mounted on poles or walls Utility pole diameter 60 mm to 114 mm Tip: Within three months after the arrival,it is recommended to use the equipment, or store in the following environment:

Temperature: -10 to 35 Relative humidity (RH): 30% RH to 85% RH Storage environment should be equipped with temperature and humidity equipments and dehumidification equipment to monitor and adjust the temperature and humidity. 1.4 Antenna Specifications Table 1-2 and lists the eA680-950 antenna's specifications. Table 1-2 eA680-950 LTE antenna specifications Item Band Gain Input impedance eA680-950 5725 to 5850 MHz 111 dBi 50 ohm SWR

< 2 Polarization Dual polarization Radiation pattern Directional antenna Issue 01 (2017-03-03) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 5 eA680-950 LTE DAU User Guide 1 Overview Table 1-3 WLAN antenna specifications Item Description Frequency 2.4 GHz ~ 2.483 GHz Input impedance 50 Standing wave ratio

< 3 efficiency Gain 50%

2dBi Polarization Linear polarization 1.5 Software Table 1-4 Software specifications Item Description Gateway Router: The default routing address is 0.0.0.0. The default routing table items can be generated accordingly. Supports Address Resolution Protocol (ARP) Supports domain name service (DNS) Supports Internet Control Message Protocol (ICMP) NAT Supports Network Address Translation (NAT) and Network Address Port Translation (NAPT). DHCP server The default DHCP server address ranges from 192.168.1.2 to 192.168.1.254. The default gateway address is 192.168.1.1. The default DHCP lease is 24 hours. The DHCP server can be enabled or disabled. The DHCP server's address pool can be configured. The DHCP lease can be configured. IP address status such as the hostname, Media Access Control (MAC) address, IP address, and remaining DHCP lease can be displayed. Supports static IP address reservation Support DHCP relay. Routing behind MS Firewall Firewall switch LAN MAC address filtering Issue 01 (2017-03-03) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 6 eA680-950 LTE DAU User Guide 1 Overview Item Description IP address filtering URL filtering Security Parameter Index (SPI) filtering Demilitarized Zone (DMZ) Port forwarding Service access control LAN Auto-negotiation between 10 Mbit/s /100 Mbit/s/1000 Mbit/s MDI/MDIX auto-sensing Compatible with IEEE 802.3/802.3u Upgrade Supports TR-069 upgrade and local upgrade. SIM Supports PIN management and SIM card authentication soft SIM Supports automatic and manual connection Encrypt and back up the current configuration, and then restore from a backup configuration Dial-up connection Importing and exporting configuration 1.6 Product Security eA680-950 security includes network security and application security. Application security includes wireless security and OM security. 1.6.1 Network Security eA680-950 network security uses Secure Sockets Layer (SSL) and Hypertext Transfer Protocol Secure (HTTPS). SSL The SSL protocol is a security connection technology for the server and client. It provides a confidential, trusted, and identity-authenticating connection to two application layers. SSL is regarded as a standard security measure and has been widely applied to web services. Identity authentication Identity authentication checks whether a communication individual is the expected object. SSL authenticates servers and clients based on digital certificates and user/password. Clients and servers have their own identifiers. The identifiers are numbered by the public key. To verify that a user is le gitimate, SSL requires digital authentication during data exchange in the SSL handshake procedure. Connection confidentiality Data is encrypted before transmission to prevent data from being hacked by malicious users. SSL uses encryption algorithms to ensure the connection confidentiality. Issue 01 (2017-03-03) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 7 eA680-950 LTE DAU User Guide Data integrity 1 Overview Any tampering on data during transmission can be detected. SSL establishes a secure channel between the client and the server so that all the SSL data can reach the destination intact. HTTPS For the eA680-950, the OM TCP applications can use SSL. HTTP over SSL is generally called HTTPS. HTTPS is used for connections between the NMS/WebUI and eA380. SSL also uses the digital certificate mechanism. HTTPS provides secure HTTP channels. HTTPS is HTTP to which SSL is added, and SSL ensures the security of HTTPS. 1.6.2 Application Security eA680-950 application security includes wireless security and OM security. Wireless Security eA680-950 wireless security includes authentication, air-interface data encryption, and integrity protection. OM Security OM security includes user authentication, access control, OM system security, and software digital signature. User Authentication and Access Control User authentication and access control are implemented for users to be served by the eA380. The objective of authentication is to identify users and grant the users with proper permission. The objective of access control is to specify and restrict the operations to be performed and the resources to be accessed by the users. OM System Security OM system security includes software integrity check. In the original procedure for releasing and using the software, the software integrity is ensured by using cyclic redundancy check (CRC). CRC can only prevent data loss during transmissions. If data is tampered with during transmissions, a forged CRC value will be regarded as valid by the CRC. Therefore, the receive end cannot rely on the CRC to ensure the consistency between the received data and the original data, adversely affecting the reliability and security for the software. Software integrity protection implements the Hash algorithm or adds a digital signature to software (including mediation layers and configuration files) when releasing software, and then uploads software to the target server or device. When a target device downloads, loads, or runs software, the target device performs the Hash check or authenticates the digital signature. By doing so, software integrity protection ensures end-to-end software reliability and integrity. Software integrity protection helps detect viruses or malicious tampering in a timely manner, preventing insecure or virus-infected software from running on the device. Digital Signature of Software Issue 01 (2017-03-03) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 8 eA680-950 LTE DAU User Guide 1 Overview A digital signature of software is used to identify the software source. It ensures the integrity and reliability of software. When software is released, its digital signature is delivered with the software package. After the software package is downloaded to an NE, the NE verifies the digital signature of the software package before using it. If the digital signature passes the verification, the software is intact and reliable. If the verification fails, the software package is invalid and cannot be used. Figure 1-5 illustrates the principles of a software digital signature. Figure 1-5 Digital signature of software Before a software package is released, all files in the software package are signed with digital signatures. That is, after a message digest is calculated for all files in the software package, the message digest is digitally signed using a private key. After a software package with a digital signature is loaded to an NE through a media such as the software release platform, the NE first verifies the digital signature of the software package. That is, the NE uses a public key to decrypt the digital signature and obtain the original message digest. Then, the NE recalculates the message digest and compares the new message digest with the original one. If the two message digests are the same, the software package passes the verification and can be used. If the two message digests are different, the software package fails the verification and cannot be used. The public key used to decrypt digital signatures is stored in the secure storage area of an NE and cannot be queried or exported. Issue 01 (2017-03-03) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 9 eA680-950 LTE DAU User Guide 1.7 Device Ports 1.7.1 Web Port 1 Overview You can log in to the DAU web UI over HTTPS to manage the DAU, including configuring and querying settings, exporting running logs, querying device logs, importing and exporting the configuration, restarting and updating the DAU, and restoring the DAU to its default settings. For details, see the web UI online help. The default web UI login user name and password are admin and admin, respectively. You can change the login password on the web UI. Internet Explorer 7.0 and a later version is recommended, because Internet Explorer 6.0 uses the SSL 3.0 protocol that contains vulnerabilities. To improve security, change the default password at your first login and regularly change the password. A password must meet the following rules:

A password consists of 8 to 15 characters. A password contains at least three types of characters of the following:

Lowercase letter Uppercase letter Digit Special characters, including the space character and the following:

`~!@#$%^&*()-_=+\|[{}];:'",<.>/?

A password cannot be the user name or the reverse order of the user name. A password cannot contain more than two consecutive characters that are the same (for example, 111 is not allowed.) By default, the function to remotely log in to the DAU web UI over HTTPS is disabled. The remote web UI functions the same as the local web UI. The maximum number of WebUI login attempts is three. After three login failures, the WebUI login page is locked and will be unlocked after one minutes. The lockingduration is incremented by one minute each time the WebUI login page is locked later. When the WebUI login password is forgotten, contact the device agent or maintenance center to restore factory defaults; refer to the AT command manual to restore factory defaults by yourself; or contact the device operator to reset the password through TR-069. The WebUI supports remote (LTE wireless link) and local (Ethernet interface or Wi-Fi link) login. Please configure ACL rights based on scenarios to control remote and local WebUI login. Opening unnecessary login interfaces may increase network attack risks or lead to unauthorized login. You can use the ACL service to enable or disable remote or local WebUI login. For details, see the section "Service Control List" in the online help of the device WebUI. If you do not perform any operation within 5 minutes after logging in to the WebUI, the system automatically logs you out.. You are advised to change the password timely after first login and regularly change the password to improve network security. Personnel in the central office may remotely log in to the LTE DAU WebUI for DAU management and upgrade using HTTPS. DAUs support HTTPS and are compatible with HTTP. HTTP is not a relatively secure protocol. Issue 01 (2017-03-03) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 10 eA680-950 LTE DAU User Guide 1.7.2 USB Port 1 Overview In normal cases, the USB port works in slave mode. In slave mode, the USB port will be mapped to a computer UI after the Huawei-provided chip driver is installed on the computer. This UI is locked by default. You can run other AT commands and write data to the SoftSim card only after running the unlock command. After the serial port mapped by the USB is connected successfully, run the unlock command. The commands for unlocking the computer UI port and changing the unlock password are as follows at^PCPORT=pwd,1: Enable the computer UI. pwd indicates the unlock password. at^PCPORT=pwd,0: Disable the computer UI. pwd indicates the unlock password. at^PORTPWD=oldPwd,newPwd, newPwdConf: Change the unlock password of the computer UI. Here, oldPwd indicates the current password, and newPwd the new password, and newPwdConf the confirm password. newPwd must be the same as newPwdConf; otherwise, the password cannot be changed. The default unlock password is $Zls123Q. To improve security, change the default USB unlock password at your first login and regularly change the password. A password must meet the following rules:

A password consists of at least eight characters. A password contains at least three types of characters of the following:

Lowercase letter Uppercase letter Digit Special characters, including the space character and the following:

`~!@#$%^&*()-_=+|[{}];:,<.>?

The password cannot be the user name or the reverse order of the user name. A password cannot contain more than two consecutive characters that are the same (for example, 111 is not allowed.) When the PC UI is unlocked, you can run commands to unlock other USB ports or AT commands to map the ports in the following table. Port Mapping Name on the Computer HUAWEI Mobile Connect -

PC UI Interface Port Usage Port Number Used to run AT commands. 0x12(the actual computer port prevails) To learn more about AT commands, contact your device vendor or the maintenance center. The chipset driver supporting the USB interface is the host driver that supports Huawei Balong V7R1. If you need it, contact Huawei. The maximum number of unlock the USB port attempts is five. After five attempt failures, users cannot input any key. Users have to restart the device. The maximum number of password change attempts is five. After five attempt failures, the USB ports will be locked. Issue 01 (2017-03-03) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 11 eA680-950 LTE DAU User Guide After USB ports are unlocked, the USB ports do not support logout upon timeout and do not exit the unlock state even if the ports are removed. In this context, perform the operation in a secure environment and restart the device, or run commands to lock the USB ports. If the softsim tool is provided by Huawei, please apply the license of the tool from Huawei, and notice the usage scope. For details of apply guide,see SoftSim Tool License Operation Guide. You are advised to change the password timely after first login and regularly change the password to improve network security. 1 Overview 1.7.3 TR-069 Port Personnel in the central office can manage the DAU remotely using TR-069. The management functions include device configuration, configuration query, running log exporting, and device updating. The account used for connections between the DAU and central office management equipment is managed by personnel in the central office. The default account name and passwords are admin and Changeme123, respectively. MD5 digest authentication is used for connections between the DAU and central office management equipment, and the authentication complies with TR-069 Amendment 4. Ensure that the settings for the DAU and central office TR-069 management equipment are the same. Otherwise, the DAU cannot be managed by the central office TR-069 management equipment. It is recommended that you change the password for connections between the DAU and central office TR-069 management equipment at regular intervals. You can change the password on the TR069 management page. A password must meet the following rules:

It is recommended that you set the password length of 6 to 100 characters (a password consists of 6 to 100 characters). A password contains at least three types of characters of the following:

Lowercase letter Uppercase letter Digit Special characters, including the space character and the following:

`~!@#$%^&*()-_=+\|[{}];:'",<.>/?

A password cannot be the user name or the reverse order of the user name. A password cannot contain more than two consecutive characters that are the same (for example, 111 is not allowed.) When TR-069 network management is enabled, each registration of the DAU will generate about 70 KB of data traffic, each periodic reporting will generate about 20 KB of data traffic, and the data traffic generated by each update depends on the update package size. An update package is generally smaller than 100 MB, and updates are triggered by the central office management equipment. When TR-069 network management is enabled, the DAU regularly connects to the central office management equipment, and the connection cycle complies with TR-069 Amendment 4. Issue 01 (2017-03-03) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 12 eA680-950 LTE DAU User Guide 1 Overview Devices support reporting the following Alarms:

Lower computer disconnection alarm LAN upstream exception alarm Poor wireless coverage alarm Login and logout alarm Threshold-crossing lower computer alarm Digest authentication prevents the account and password used for connections between the DAU and central office TR-069 management equipment from being cracked. The number of attempts is five. After five attempt failures, wait five minutes and receive new connection authentication requests. The central office TR-069 management equipment will use the SN as the unique identifier for device management. Issue 01 (2017-03-03) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 13 eA680-950 LTE DAU User Guide 2 Hardware 2 Hardware About This Chapter This section describes the hardware and cables of the eA680-950. 2.1 eA680-950 Hardware This section describes the appearance, ports, and indicators of the eA680-950. Appearance Figure 2-1 shows the appearance of the eA680-950. Figure 2-1 Appearance of eA680-950s Issue 01 (2017-03-03) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 14 eA680-950 LTE DAU User Guide Panel 2 Hardware The panel of the eA680-950 provides the Power over Ethernet (PoE) port, SIM card maintenance window, and indicator. Figure 2-2 shows the panel of the eA680-950. Figure 2-2 Panel of the eA680-950 Table 2-1 lists the ports of the eA680-950. Table 2-1 Ports on the eA680-950 Name PoE LED Description PoE port Indicators SIM card maintenance window Consists of the SIM card slot and USB port. A SIM card is inserted into the SIM card slot. The USB port is used for internal commissioning. Grounding end Connects a ground cable Issue 01 (2017-03-03) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 15 eA680-950 LTE DAU User Guide Name Nameplate 2 Hardware Description Displays the identifier information of a vendor Anti-scalding label Anti-scalding sign External antenna interface NOTE Only supports dual-polarized antenna or dual antenna installation. Indicators of the eA680-950 are below the SIM card maintenance window and are used to indicate the running status of the eA680-950. The four indicators from top to bottom are POWER, WLINK, RSSI, and HEAT, as shown in Figure 2-3. Figure 2-3 Indicators Table 2-2 describes the indicators of the eA680-950. Table 2-2 Indicators of the eA680-950 Identifier Status Description POWER On Off WLINK Steady on The power supply is normal. No power is supplied. The eA680-950 is successfully registered to the network. Issue 01 (2017-03-03) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 16 eA680-950 LTE DAU User Guide 2 Hardware Identifier Status Description RSSI NOTE The blink frequency of the RSSI indicator on the panel is determined by the valve of the reference signal received power

(RSRP). Blink per 1000 ms The product fails to register to the network. Steady on Blink per 500 ms Blink per 1000 ms The signal strength ranges from 40 dBm to 60 dBm. The signal strength ranges from 60 dBm to 80 dBm. The signal strength ranges from 80 dBm to 105 dBm. Blink per 2000 ms The signal strength ranges from -105 dBm to -120 dBm. Off HEAT Controlled by the hardware temperature. The signal strength is equal to or smaller than 120 dBm. When the hardware temperature is lower than 0C, the hardware is heated and the indicator is on. When the hardware temperature is higher than 0C, the indicator is off. 2.2 eA680-950Cables 2.2.1 PoE Network Cable The power over ethernet (PoE) network cable is a shielded network cable that is used to connect the PoE port of the eA680-950. The PoE network cable connects to an RJ45 connector at both ends. Background Information The PoE network cable transmits data signals to the eA680-950 and provides DC power for the equipment. Technical Specifications Table 2-3 lists the technical specifications of the PoE network cable. Table 2-3 Technical specifications of the PoE network cable Name Color Outer diameter Description Black 6.8 mm Working temperature range 40C to 75C Issue 01 (2017-03-03) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 17 eA680-950 LTE DAU User Guide 2.2.2 Ground Cable 2 Hardware The ground cable ensures the proper grounding of the eA680-950. Appearance The ground cable provides a 6 mm cross-section, is yellow-green, and has OT terminals at both ends. Figure 2-4 shows the appearance of the ground cable. Figure 2-4 Ground cable Technical Specifications Table 2-4 lists the technical specifications of the ground cable. Table 2-4 Technical specifications of the ground cable Name Color Cross-section Outer diameter Description Yellow-green 6 mm 5.1 mm Working temperature range 10C to 70C Issue 01 (2017-03-03) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 18 eA680-950 LTE DAU User Guide 3 Installation 3 Installation About This Chapter This section describes how to install the eA680-950. 3.1 Site Preparations This section describes how to prepare a site before eA680-950 installation. Select a site and space for installing an eA680-950 that meets the following requirements to ensure installation, commissioning, and operating of the equipment. Requirements for Site Selection To ensure long-term reliability of an eA680-950, select a site based on the network plan and technical requirements of the equipment, as well as considerations such as hydrology, geology, and transportation. Site selection must meet the following requirements:

Keep the site away from high temperature, dusty location, poisonous gases, explosive objects, and unstable voltages. Keep the site away from any electric substation, industrial boiler, and heating boiler. Keep the site away from any radar station, large-power radio transmitting station, and other interference sources. The field strength of interference sources cannot exceed that of unwanted radiation that an eA680-950 can shield. Keep an outdoor eA680-950 site 500 m away from the sea. Keep the site away from pollution sources. If this is not possible, deploy the site in perennial upwind direction of pollution sources. Keep the site at least 5 km away from heavy pollution sources such as a refinery and coal mine. Keep the site at least 3.7 km away from moderate pollution sources such as a chemical plant, a rubber plant, and an electroplating factory. Keep the site at least 2 km away from light pollution sources such as a food factory and a leather processing plant. Issue 01 (2017-03-03) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 19 eA680-950 LTE DAU User Guide 3 Installation The air intake vents of the communication equipment must be far away from the sewer pipe, septic tank, and sewage disposal pool. The atmospheric pressure inside the equipment room must be higher than that outside the equipment room. Otherwise, corrosive gases may enter the equipment room and corrode the components and circuit boards. Keep indoor eA680-950 sites away from livestock rearing houses and fertilizer warehouses. If this is not possible, the room must be located at a place that is in the upwind direction of the livestock room or fertilizer warehouse. Deploy an indoor eA680-950 site higher than the second floor in a building. Alternatively, mount an eA680-950 at least 600 mm higher than the record flood stage. Requirements for Installation Space To facilitate O&M, adhere to the following space requirements as shown in Figure 3-1. Figure 3-1 Space requirements for installing an eA680-950 (unit: mm) Requirements for Operating Environment For details about operating environment requirements, see1.3 Hardware Specifications 3.2 Installation Preparation Before you install the eA680-950, unpack and inspect the equipment delivered to the site and prepare the related tools. Prerequisites Perform the following operations to inspect the goods delivered to the site:

1. Unpack the equipment, count the total number of items based on the packing list attached to each packing case, and check whether each packing case is intact. 2. Check whether the models and quantities are consistent with those specified on the Packing List. 3. Record the serial number of the DAU. Issue 01 (2017-03-03) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 20 eA680-950 LTE DAU User Guide Precautions 3 Installation Power on a DAU within 24 hours after unpacking it. If you power off a DAU for maintenance, restore power to the DAU within 24 hours. Keep the DAU dry in humid environment. To avoid direct lightning, DAU must be installed in the protection angle of 45 degrees below a separate lightning rod, or protection angle of 45 degrees below a surrounding high-rise building. Ensure that there are no obstacles facing the DAU, and enable the DAU to face the base station. Installation Tools Table 3-1 lists the tools used for installing the eA680-950. Table 3-1 Installation tools Hammer drill ESD gloves Vacuum cleaner Phillips screwdriver

(M3M6) Flat-head screwdriver

(M3M6) Heat gun Claw hammer Utility knife Power cable crimping tool Cable cutter Vise Hex key (M5,M6) Wire stripper Adjustable wrench (open end 32 mm) Phillips torque screwdriver Issue 01 (2017-03-03) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 21 3 Installation Marker (diameter 10 mm) eA680-950 LTE DAU User Guide Measuring tape Multimeter 3.3 Installation Procedure 3.3.1 Mounting on a Utility Pole Context Figure 3-2 shows the flowchart for mounting the eA680-950 on a utility pole without an angle adjusting component. Figure 3-2 Flowchart for mounting the eA680-950 on a utility pole without an angle adjusting component Issue 01 (2017-03-03) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 22 eA680-950 LTE DAU User Guide Procedure 3 Installation Step 1 Open the SIM card maintenance window of the eA680-950 and insert the SIM card, as shown in Figure 3-3. Figure 3-3 Installing the SIM card Figure 3-4 shows the correct installation method. Figure 3-4 Installation method of the SIM card maintenance window Issue 01 (2017-03-03) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 23 eA680-950 LTE DAU User Guide 3 Installation When you install the SIM card maintenance window, insert the protrusion into the caging slot to ensure that the SIM card maintenance window is waterproof. Do not fasten the screws until the SIM card maintenance window has been correctly installed. Step 2 Insert the hose clamp to the wall-mounting frame, as shown in Figure 3-5. Figure 3-5 Inserting the hose clamp to the wall-mounting frame Insert the end of the hose clamp that does not contain a screw into the square hole on top of the wall-mounting frame on the back of the unit. When half of the hose clamp passes through the square hole, slightly kink the protruding part and insert it into the other square hole on the front of the unit. Step 3 Install the hose clamp with the wall-mounting frame on the utility pole, and use a M6 hex key to rotate the screw on the hose clamp to adjust the length of the hose clamp until it is correctly connected, as shown in Figure 3-6. Issue 01 (2017-03-03) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 24 eA680-950 LTE DAU User Guide Figure 3-6 Adjusting the length of the hose clamp 3 Installation If the hose clamp is too long, cut off the extra part. Apply anti-rust oil to the cut in case it gets rusty. Step 4 Fix the eA680-950 on the wall-mounting frame through the dovetail groove, as shown in Figure 3-7. Figure 3-7 Installing the eA680-950 on the wall-mounting frame Step 5 Tighten the wall-mounting frame's screw, as shown in Figure 3-8. Issue 01 (2017-03-03) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 25 eA680-950 LTE DAU User Guide Figure 3-8 Tightening the screw 3 Installation

----End 3.3.2 Mounting on the Wall Context Figure 3-9 shows the flowchart for mounting the DAU on the wall. Issue 01 (2017-03-03) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 26 eA680-950 LTE DAU User Guide Figure 3-9 Wall-mounting flowchart 3 Installation Procedure Step 1 Open the SIM card maintenance window of the eA680-950 and insert the SIM card, as shown in Figure 3-10. Issue 01 (2017-03-03) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 27 eA680-950 LTE DAU User Guide Figure 3-10 Installing the SIM card 3 Installation Figure 3-11 shows the correct installation method. Figure 3-11 Installation method of the SIM card maintenance window Issue 01 (2017-03-03) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 28 eA680-950 LTE DAU User Guide 3 Installation When you install the SIM card maintenance window, insert the protrusion into the caging slot to ensure that the SIM card maintenance window is waterproof. Do not fasten the screws until the SIM card maintenance window has been correctly installed. Step 2 Hold the wall-mounting frame tightly against the wall, use a level to adjust the horizontal position, and mark the fixing points with a marker, as shown in Figure 3-12. Figure 3-12 Marking the fixing points Step 3 Use a drill with 8 mm drill bit to drill holes in the fixing points. Then remove the dust from the holes and install the expansion bolts, as shown in Figure 3-13. Issue 01 (2017-03-03) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 29 eA680-950 LTE DAU User Guide Figure 3-13 Installing the expansion bolt 3 Installation Step 4 Align the two fixing points with the bolts on the wall and tighten the expansion bolt's screw nut to fix the wall-mounting frame, as shown in Figure 3-14. Figure 3-14 Fixing the wall-mounting frame Step 5 Install the ground cable. For details, see Step 1 in Cable Connection. Step 6 Fix eA680-950 to the wall-mount frame using the dovetail groove, as shown in Figure 3-15. Issue 01 (2017-03-03) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 30 eA680-950 LTE DAU User Guide Figure 3-15 Fixing the DAU 3 Installation Step 7 Tighten the wall-mounting frame's screw, as shown in Figure 3-16. Figure 3-16 Tightening the screw Issue 01 (2017-03-03) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 31 eA680-950 LTE DAU User Guide

----End 3.3.3 Cable Connection This section describes the procedure for connecting the eA680-950 cables. Procedure Step 1 Connect the ground cable, as shown in Figure 3-17. Figure 3-17 Connecting the ground cable 3 Installation Tighten the ground screws and apply antirust paint to it. Step 2 Install the crystal connector to PoE network cable, as shown in Figure 3-18. Issue 01 (2017-03-03) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 32 eA680-950 LTE DAU User Guide Figure 3-18 Install crystal connector 3 Installation When making PoE network cables, follow the international standard EIA/TIA568A or EIA/TIA568A to arrange the cables. Make sure that the two ends of each network cable use the same standard. Step 3 Connect the PoE network cable. 1. Diassemble the PG-head screw cap and air-proof block on the PoE port, and pass the network cable through them, as shown in Figure 3-19. Issue 01 (2017-03-03) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 33 eA680-950 LTE DAU User Guide Figure 3-19 Passing the network cable through the PG-head screw cap and air-proof block 3 Installation 2. Connect the network cable to the network adapter, and manually rotate the screw cap to ensure that the lock block adheres to the network cable, as shown in Figure 3-20. Figure 3-20 Installing the PG-head screw cap and air-proof block Step 4 Connect the PoE adapter. Issue 01 (2017-03-03) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 34 eA680-950 LTE DAU User Guide 3 Installation Connect one end of the PoE network cable to the adapter, as shown in Figure 3-21. Figure 3-21 Connecting the PoE adapter 1. DATA port: connects to the compuer network cable. 2. PoE port: connects to the PoE network cable.

----End 3.4 Installation Check After you install the eA680-950, perform a hardware installation check and a power-on check. Prerequisites Procedure The eA680-950 hardware has been installed. Step 1 Check whether the eA680-950 hardware is correctly installed. When performing the hardware check for the eA680-950, check the items listed in Table 3-2 in order. Table 3-2 Hardware installation check of the eA680-950 No. Check Item Issue 01 (2017-03-03) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 35 eA680-950 LTE DAU User Guide No. Check Item 3 Installation 1 2 3 The installation position must strictly comply with the design drawings, meet the installation space requirements, and reserve space for maintenance. When the eA680-950 is mounted on a metal utility pole, the fixture must be firmly installed, and the DAU must be attached. When the eA680-950 is mounted on the wall, the installation hole on the fixture must be aligned with the one on the expansion bolt. In addition, the fixture must be tightly and firmly attached to the wall and must not wobble when you shake it. When checking the cable connections of the eA680-950, check the items listed in Table 3-3 in order. Table 3-3 Cable connection check of the eA680-950 No. Check Item 1 2 3 4 No cable is short-circuited or inversely connected. The bare wires and lugs of the connecting terminal must be tightly wrapped with insulation tapes. Cooper wires must not be exposed. Power cables or PGND cables with connectors are not used. The connector of the PoE network cable must be appropriately connected. Step 2 Perform the power-on check, as shown in Figure 3-22. Issue 01 (2017-03-03) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 36 eA680-950 LTE DAU User Guide Figure 3-22 Power-on check of the eA680-950 3 Installation The items listed in Table 3-4 must be checked during eA680-950 indicator check. Table 3-4 Indicator check No. 1 2 Check Item When the eA680-950 powers on, the POWER indicator is on. When the eA680-950 powers on, the RSSI indicator is steady on or blinks. If the RSSI indicator is off when the eA680-950 powers on, the signal strength is too weak. Check the power supply and the angle of the angle adjusting component. For details about the indicator status, see 2.1 eA680-950 Hardware.

----End Issue 01 (2017-03-03) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 37 eA680-950 LTE DAU User Guide 4 Configuration Introduction 4 Configuration Introduction About This Chapter This chapter describes the configuration Introduction of the eA680-950s. 4.1 Log in to the WebUI Prerequisites The deployment on the network side is complete. The computer has been connected to the eA680-950. The installation of the eA680-950 is complete. The eA680-950 starts correctly based on default parameters during power-on. Procedure Step 1 Start the IE browser, enter http://192.168.1.1 in the address bar, and press Enter. Connect the eA680-950 from the near end using the Web management page. Use Internet Explorer 7.0 or a later version. Step 2 Log in to the web management page with User name set to default value admin and Password set to default value admin. Step 3 Access Password Modification and modify New Password.

----End Issue 01 (2017-03-03) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 38 eA680-950 LTE DAU User Guide 5 Maintenance 5 Maintenance About This Chapter This section describes the maintenance preparation and fault diagnosis methods for the eA680-950. 5.1 Maintenance Preparation Before performing site maintenance for the eA680-950, learn about the sit information, select required maintenance items, and prepare related tools. Learning About the Site Information Gather the following site information before going to the eA680-950 site to perform maintenance. Persisting faults and alarms Hardware configuration Natural environment Selecting Maintenance Items Select suitable maintenance items based on the eA680-950 site conditions. Maintenance items must include the following aspects:

Natural environment of the eA680-950 site Power and grounding systems of the eA680-950 eA680-950 5.2 Fault Diagnosis When the DAU does not run properly, use the tools on the Web management page to perform initial diagnosis. Issue 01 (2017-03-03) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 39 eA680-950 LTE DAU User Guide Prerequisites Procedure 5 Maintenance The network deployment is complete. The computer has been connected to the eA680-950. The installation of the eA680-950 is complete. The eA680-950 starts appropriately based on default parameters after power-on. When the LTE CPE fails to access the Internet, run the Ping function to quickly check the network connection status. Step 1 Start the IE browser, enter http://192.168.1.1 in the address bar, and press Enter. Log in to the Web management page, and enter User name and Password. Use Internet Explorer 7 (IE7) or a later version. Step 2 Choose Settings > TR-069 Management> Diagnosis to open the Diagnosis page. Step 3 Set Diagnosis Method to Ping. Step 4 Enter the domain name in the Destination IP address/domain name box. Step 5 Click Apply. Step 6 Wait until the operation is performed. The command output is displayed in the Result box. Timeout indicates the timeout period of each reply, and ranges from 1 to 10 seconds. When the LTE CPE does not run properly, the System Check can be used to preliminarily identify the problem. Step 7 Start the IE browser, enter http://192.168.1.1 in the address bar, and press Enter. Then enter the correct password and click Log In. Use Internet Explorer 7 (IE7) or a later version. Step 8 Choose Settings > TR-069 Management> Diagnosis to open the Diagnosis page. Step 9 Set Diagnosis Method to System Check. Step 10 Click Check. Step 11 Wait until the system check is performed. Click Export to export the detailed information to the computer. If necessary, send the detailed information to maintenance personnel.

----End Issue 01 (2017-03-03) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 40 eA680-950 LTE DAU User Guide 6 FAQ 6 FAQ 6.1 What Do I Do If the Web UI Fails to Be Opened?

Problem Description:

I cannot visit theWeb management page of eA680-950 through browser. Solution:

Step 1 Check wheather the DAU is powered on. Step 2 Check wheather the cables are not properly connected. Step 3 Check wheather the IP address is entered correctly. Step 4 If there is no problem after the above checks, try to restart the DAU from the near end. Step 5 If the problem persists, please contact Huawei technical engineer.

----End 6.2 What Do I Do When Power Indicator Is Not Working?

Problem Description:

Power indicator is not working Solution:

Step 1 Check whether the PoE cable is correctly connected to the power. The power supply is provided if the Power indicator presents red light. Step 2 Check whether the PoE power adapter meets the product specifications. Issue 01 (2017-03-03) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 41 eA680-950 LTE DAU User Guide 6 FAQ The PoE is powered by the DAU using item 02220015 as the power adapter. The minimum input voltage: 90 V The maximum input voltage: 264 V Rate output voltage or current: 54 V or 650 mA Output voltage accuracy: 5%

Input or output cable connector: AC 2pin or RJ45 8pin

----End 6.3 What Do I Do When the Data Service Is not Provided?

Problem Description:

Data service is not provided Solution:

Step 1 Check whether the DAU is powered. If the Power indicator presents red light, the power supply is provided. Step 2 Check whether the SIM card is correctly installed. Step 3 Confirm whether the DAU is connected to the network. Check whether the RSSI indicator is steady or blinking. Step 4 If the problem persists, contact local service provider.

----End Issue 01 (2017-03-03) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 42 eA680-950 LTE DAU User Guide 7 Privacy and Security 7 Privacy and Security 7.1 Privacy Policy To better understand how we protect your personal information, please see the privacy policy at http://consumer.huawei.com/privacy-policy. The device will use the SN as the unique identifier for device management. The device provides the log function to records device running and operation information, excluding any information related to individuals, including the IMEI, IMSI, call record (in voice scenarios), account, and password. The device provides TR-069-based network management function. To disable this function, see the TR-069-related section in the online help. 7.2 Security Maintenance Software components used by this device may report vulnerabilities. This device will use the software upgrade mode to fix these issues. You can obtain specific software packages from the device agent. 7.3 Performing Default Security Configuration After a WebUI login, users can check the online help to perform default security configuration. Change the WebUI login password, keep it secure, and regularly change it subsequently. Verify that the TR-069 port password meets complexity requirements. Set the firewall level to low and enable the anti-DoS attack function. Configure the service list control function based on product application scenarios. If HTTPS and ICMP access requests on the WAN side do not exist, disable WAN access. Change the USB port password, keep it secure (before installation), and regularly change it subsequently (optional). Issue 01 (2017-03-03) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 43 eA680-950 LTE DAU User Guide 7 Privacy and Security The USB port provides maintenance and repair functions and allows you to set device parameters. Please keep the password secure to prevent device parameters from being modified or exposed. Issue 01 (2017-03-03) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 44 eA680-950 LTE DAU User Guide 8 FCC warning 8 FCC warning This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

Reorient or relocate the receiving antenna. Increase the separation between the equipment and receiver. Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. Consult the dealer or an experienced radio/TV technician for help. MODIFICATION : Any changes or modifications not expressly approved by the grantee of this device could void the users authority to operate the device. This device should be installed and operated with a minimum distance of 20cm between the antenna and all persons. MODIFICATION: Any changes or modifications not expressly approved by the grantee of this device could void the users authority to operate the device. Issue 01 (2017-03-03) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 45 eA680-950 LTE DAU User Guide 9 Acronyms and Abbreviations 9 Acronyms and Abbreviations This section lists the acronyms and abbreviations related to the eA680-950. Table 9-1 List of acronyms and abbreviations Acronym/Abbreviation Full Name 3GPP ARP DAU DHCP DMZ ICMP IP GRE LTE MAC MDI NAPT NAT RTU PoE SPI SIM TR069 URL WAN 3rd Generation Partnership Project Address Resolution Protocol Customer Premises Equipment Dynamic Host Configuration Protocol Demilitarized Zone Internet Control Message Protocol Internet Protocol Generic Routing Encapsulation Long Term Evolution Media Access Control Medium Dependent Interface Network Address Port Translation Network Address Translation Remote Terminal Unit Power over Ethernet Security Parameter Index Subscriber Identity Module Technical Report 069 Uniform Resource Location Wide Area Network Issue 01 (2017-03-03) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 46 eA680-950 LTE DAU User Guide 9 Acronyms and Abbreviations Issue 01 (2017-03-03) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. 47