HUAWEI E5785Lh-22c Mobile WiFi
Product Description
Model: V200R001
Issue: 02
Date: 2016-11-16
Manufacturer: HUAWEI TECHNOLOGIES CO., LTD.
About This Document
This document provides information about the major functions, supported services, and system architecture of the HUAWEI E5785Lh-22c Mobile WiFi.
Summary of Contents
| Chapter | Details |
|---|---|
| 1 Overview | The supported network modes, basic services and functions, and the appearance of the product. |
| 2 Features | The supported features and technical specifications of the product. |
| 3 Services and Applications | The services and applications of the product. |
| 4 System Architecture | The architecture of the product. |
| 5 Packing List | The items contained in the package of the product. |
History
| Issue | Details | Date |
|---|---|---|
| 01 | First release. | 2016-06-02 |
| 02 | Revised "Maximum standby time: 700 hours" | 2016-11-16 |
1 Overview
1.1 Brief Introduction
The HUAWEI E5785Lh-22c Mobile WiFi (referred to as the E5785Lh-22c) is a high-speed packet access mobile hotspot. It serves as a multi-mode wireless terminal for SOHO (Small Office and Home Office) and business professionals.
The E5785Lh-22c supports the following standards:
- Long Term Evolution Carrier Aggregation (LTE CA)
- LTE Frequency Division Duplex (FDD)
- LTE Time Division Duplex (TDD)
- Dual Carrier High Speed Packet Access Plus (DC-HSPA+)
- High Speed Packet Access Plus (HSPA+)
- High Speed Uplink Packet Access (HSUPA)
- High Speed Downlink Packet Access (HSDPA)
- Universal Mobile Telecommunications System (UMTS)
- Enhanced Data rates for Global Evolution (EDGE)
- General Packet Radio Service (GPRS)
- Global System for Mobile communications (GSM)
The E5785Lh-22c provides the following services:
- LTE CA packet data service
- LTE FDD packet data service
- LTE TDD packet data service
- DC-HSPA+ packet data service
- HSPA+/HSPA/UMTS packet data service
- Short Message Service (SMS)
Users can connect the E5785Lh-22c via its USB interface to a computer or connect wirelessly via Wi-Fi. In areas with LTE CA/LTE FDD/LTE TDD/DC-HSPA+/HSPA+/HSPA/UMTS network coverage, users can surf the Internet and send/receive messages/emails cordlessly. The E5785Lh-22c is designed to be fast, reliable, and easy to operate, enabling mobile users to experience new features and services.
A visual representation of the HUAWEI E5785Lh-22c Mobile WiFi device, showing its front, back, and side profiles.
1.2 Optional Features
Optional features are functionalities not included in the standard version or disabled by default. These can be customized based on operator or customer requirements. The optional features for the E5785Lh-22c include:
- IPv6/IPv4 dual stack (optional)
- SIM lock (optional)
2 Features
2.1 Main Features
The E5785Lh-22c supports the following main features:
- LTE FDD CA (DL) data service of up to 300 Mbit/s
- LTE FDD (DL) data service of up to 150 Mbit/s
- LTE FDD (UL) data service of up to 50 Mbit/s
- LTE TDD CA (DL) data service of up to 224 Mbit/s
- LTE TDD (DL) data service of up to 112 Mbit/s
- LTE TDD (UL) data service of up to 20 Mbit/s
- DC-HSPA+ (DL) data service of up to 43.2 Mbit/s
- HSPA+ (DL) data service of up to 21.6 Mbit/s
- HSDPA (DL) data service of up to 14.4 Mbit/s
- HSUPA (UL) data service of up to 5.76 Mbit/s
- UMTS data service of up to 384 kbit/s
- EDGE data service of up to 236.8 kbit/s
- GPRS data service of up to 85.6 kbit/s
- PS domain data service based on LTE/UMTS/GSM
- SMS based on LTE/UMTS/GSM
- Built-in LTE/UMTS and WLAN high gain antenna
- Wi-Fi 2.4 GHz and 5 GHz
- Menu-style LCD UI
- Support for HUAWEI HiLink APP (Mobile WiFi App)
- Press and Play
- IPv6/IPv4 dual stack (optional)
- Built-in DHCP Server, DNS RELAY and NAT
- Online software upgrade
- Traffic statistic
- WPS
- Standard Micro USB 2.0 interface
- 2D Barcode easy connection
Compatible operating systems include Windows 7, Windows 8, Windows 8.1, Windows 10 (excluding Windows RT), and MAC OS X 10.7, 10.8, 10.9, 10.10, and 10.11 with the latest upgrades.
2.2 Technical Specifications
2.2.1 Hardware
| Item | Specifications |
|---|---|
| Technical standard | WAN: LTE CA/LTE FDD/LTE TDD/ DC-HSPA+/HSPA+/HSPA/UMTS/EDGE/GPRS/GSM WLAN: IEEE 802.11a/b/g/n/ac |
| Operating frequency | LTE CA:
LTE TDD: B38 DC-HSPA+/HSPA+/HSPA/UMTS: B1 (2100MHz)/B2 (1900MHz)/B5 (850MHz)/B8 (900MHz) EDGE/GPRS/GSM: B2 (1900MHz)/B3 (1800MHz)/B5 (850MHz)/B8 (900MHz) WLAN: 2.4 GHz, 5 GHz |
| Internal memory | 256 MB Flash, 256 MB DDR SDRAM |
| Maximum | LTE: Conform to Power Class 3 Definition |
| Transmitter power | UMTS: Conform to Power Class 3 Definition WLAN:
|
| Receiver sensitivity | LTE: Conform to 3GPP requirements UMTS: Conform to 3GPP requirements WLAN:
|
| WLAN speed |
|
| Maximum power consumption | 3.5 W |
| Power supply | AC: 100–240 V DC: 5 V, 2 A |
| Battery | Type: Li (rechargeable) Capacity: 3.8 V, 3000 mAh Maximum working time: 12 hours (depending on the network) Maximum standby time: 700 hours (depending on the network) |
| External interfaces | Micro USB 2.0 interface Micro-SIM card interface |
| Screen | TFT-LCD |
| Key-press | Power switch, MENU switch, RESET switch |
| Antenna | Built-in LTE/UMTS/GSM main antenna Built-in LTE/UMTS/GSM diversity antenna Built-in WLAN 2 x 2 antenna |
| Dimensions (W x D x H) | 108.0 mm x 62.0 mm x 17.3 mm |
| Weight | About 127g (including the battery) |
| Temperature | Operating: 0°C to +35°C Storage: -20°C to +70°C |
| Humidity | 5% to 95% (non-condensing) |
2.2.2 Software
| Item | Description |
|---|---|
| SMS |
|
| Network connection setup |
|
| WLAN setup |
|
| Firewall setup |
|
| NAT setup |
|
| DHCP setup |
|
| Software installation | Automatic installation |
| IPv6/IPv4 dual stack (optional) |
|
| Other | Network connection settings:
|
| System requirement |
|
3 Services and Applications
3.1 Data Service
3.1.1 Wireless Modem
The E5785Lh-22c can function as a wireless modem when Wi-Fi is enabled. Users can access the Internet by using default settings or configuring the APN on the E5785Lh-22c Web page to establish a wireless network connection. The device supports up to 16 concurrent wireless users on the 2.4 GHz Wi-Fi band and up to 10 users on the 5 GHz Wi-Fi band. The WLAN Access Point (AP) function can also be configured.
A diagram illustrating multiple devices (laptops, smartphones) connecting to the HUAWEI E5785Lh-22c via both Wi-Fi and a USB connection simultaneously.
3.1.2 USB Modem
After connecting the E5785Lh-22c to a PC using a USB data cable, users can access the internet by entering http://192.168.8.1 in their browser. Default settings can be used, or the APN can be configured via the E5785Lh-22c Web page to set up a network connection. This allows users to send/receive emails, access the network wirelessly, and download files.
A diagram showing a computer connected to the HUAWEI E5785Lh-22c via a USB cable, indicating data transfer.
3.1.3 LTE/3G/Wi-Fi Auto Offload
The E5785Lh-22c facilitates internet access via LTE, 3G, or Wi-Fi. When the device is used in an area with a Wi-Fi hotspot (e.g., airport, cafe, hotel, or home), it automatically switches to a Wi-Fi connection, thereby saving LTE/3G network traffic fees. Enabling this feature may decrease the number of concurrent users allowed to connect to the E5785Lh-22c by one.
A conceptual diagram showing the device connecting to the internet via LTE/3G or Wi-Fi hotspot. It illustrates the automatic switching to Wi-Fi when available to save mobile data.
3.2 SMS
The E5785Lh-22c supports writing, sending, and receiving messages. Users can manage messages, including inbox, outbox, and drafts, through the Web page interface.
3.3 Menu-Style LCD UI
The E5785Lh-22c features a menu-style LCD User Interface (UI) that supports multiple languages. Users can navigate menus and select/confirm options using the menu and power buttons. The UI allows browsing information and configuring settings. For example, users can:
- Scan a 2D barcode on the E5785Lh-22c's LCD to download the HUAWEI HiLink App (Mobile WiFi App).
- Scan a 2D barcode on the E5785Lh-22c's LCD using the HUAWEI HiLink App (Mobile WiFi App) to connect their device to the Internet.
- Turn the automatic switchover between LTE/3G and Wi-Fi Internet access modes on or off.
- Turn the WPS function on or off.
A visual representation of the menu-style LCD UI. This is for reference only; the actual UI may vary.
4 System Architecture
4.1 System Architecture
A block diagram detailing the system architecture of the HUAWEI E5785Lh-22c. It shows interconnected modules including Radio Frequency, Baseband Signal Processing, Application System, Protocol Stack, Bottom Layer Drivers, and User Interface, connecting to external entities like PCs and mobile phones via USB and Wi-Fi.
4.2 Functional Modules
- Radio frequency module: Sends/receives radio signals and modulates/demodulates radio frequency (RF) signals and baseband signals.
- Baseband signal processing: Processes LTE CA/LTE FDD/LTE TDD/DC-HSPA+/HSPA+/UMTS baseband digital signals, including modulation/demodulation and encoding/decoding of various LTE, UMTS, EDGE, GPRS, and GSM signals and channels.
- Bottom layer driver: Drives peripherals such as USB devices, Wi-Fi devices, the screen, buttons, and the SIM card.
- Protocol stack system: Processes protocols for LTE CA/LTE FDD/LTE TDD/DC-HSPA+/HSPA+/UMTS/EDGE/GPRS/GSM and TCP/IP.
- Application system: Provides management functions including SMS, PS domain service, Wi-Fi configuration, network service, Web service, and Web page. Users can set management parameters via the Web page.
- User interface: Facilitates human-computer interaction through a screen and buttons.
5 Packing List
This chapter describes the items contained in the package of the E5785Lh-22c.
| Item | Quantity | Remarks |
|---|---|---|
| Mobile WiFi | 1 | Standard |
| Rechargeable Battery (3000 mAh) | 1 | Standard |
| USB Cable | 1 | Standard |
| Quick Start | 1 | Standard |
| Safety Information | 1 | Standard |
| Charger | 1 | Optional |
| Warranty Card | 1 | Optional |
A Acronyms and Abbreviations
| 3G | The Third Generation |
| AES | Advanced Encryption Standard |
| ALG | application level gateway |
| APN | access point name |
| ARPU | average revenue per user |
| ASCII | American Standard Code for Information Interchange |
| DHCP | Dynamic Host Configuration Protocol |
| DMZ | demilitarized zone |
| DNS | Domain Name Server |
| FDD | frequency division duplex |
| HSPA+ | High Speed Packet Access Plus |
| HSUPA | High Speed Uplink Packet Access |
| HSDPA | High Speed Downlink Packet Access |
| IEEE | Institute of Electrical and Electronics Engineers |
| IP | Internet Protocol |
| LCD | Liquid Crystal Display |
| LTE | Long Term Evolution |
| MAC | Medium Access Control |
| Modem | Modulator Demodulator |
| NAT | Network Address Translation |
| OS | Operating System |
| PC | personal computer |
| PIN | personal identification number |
| PnP | Plug and Play |
| PS | packet switched |
| PUK | PIN unblocking key |
| SIM | subscriber identity module |
| SMS | short messaging service |
| SOHO | small office home office |
| SSID | Service Set Identifier |
| TFT | Thin Film Transistor |
| TKIP | Temporal Key Integrity Protocol |
| UMTS | Universal Mobile Telecommunications System |
| UPnP | Universal Plug and Play |
| USB | Universal Serial Bus |
| WAN | wireless area network |
| WEP | wired equivalent privacy |
| Wi-Fi | Wireless Fidelity |
| WLAN | wireless local area network |
| WPA | Wi-Fi Protected Access |
