Key facts
- Manuals
- 63
- Categories
- 2
- Languages
- ZH
- Last added
- 2012-03-12
Featured 崇瀚 manuals

Chonghan CH-M2 Wireless Modem User Manual
This manual describes the CH-M2 series wireless modem, including important safety notices, liability limits, and usage restrictions. It warns that the device must not be used near explosive operations, medical equipment, life‑support systems, or on aircraft, and that data transmission cannot be guaranteed.
The guide details AT command syntax, SMS functions, and lists the three model variants (CH-M2G5H5, CH-M2C3H2, CH-M2T2H1) with their USB 2.0 Type‑B interfaces. It also provides a bill of materials (power adapter, USB cable, antenna) and contact information for technical support. This manual is written in Chinese.
Covers: Overview · Safety and Hazards · AT Commands · SMS Functions · Product List · Bill of Materials

Chonghan CH-M2 Wireless Modem User Manual
This manual describes the CH-M2 series wireless modems, providing information to help users understand the product, troubleshoot issues, test functionality, and install the devices in projects. It includes safety warnings, liability statements, and contact details for Chonghan Technology.
The document contains AT command usage, SMS sending/receiving procedures, a product list with model variants (CH-M2G5H5, CH-M2C3H2, CH-M2T2H1), hardware specifications such as power adapter and USB interface, and a glossary of technical terms. This manual is written in Chinese.
Covers: Important Notice · Safety and Hazards · Liability Limitation · Copyright Information · Trademark · Contact Information

Chonghan CH-R1 Wireless Router User Manual
The CH-R1 series router, developed by Chonghan Technology, is a 2G/3‑G based wireless router designed for industrial and enterprise applications. It features a 32‑bit embedded processor, RS232/485 and 10/100 Mbps Ethernet interfaces, and supports various cellular bands for data, image, and monitoring transmission.
This manual provides safety warnings, installation steps, configuration via web interface, and troubleshooting guidance, including reboot and logout procedures. It also lists the product accessories, model variants, and a glossary of networking terms. This manual is written in Chinese.
Covers: 概述 (Overview) · 安全及危害 (Safety and Hazards) · 版本历史 (Version History) · 系统信息 (System Information) · 网络设置 (Network Settings) · 防火墙设置 (Firewall Settings)

Chonghan CH-D1 Wireless DTU User Manual
This manual describes the CH‑D1 series wireless DTU, an IP modem/M2M device for transparent serial data transmission in industrial environments. It covers basic functions, AT command sets, connection modes, and monitoring features to help users quickly set up and operate the product.
Safety and liability sections warn against using the device in explosive areas, near medical or life‑support equipment, on aircraft, or while operating a vehicle. The manual also lists product variants, supported networks, and hardware interfaces. This manual is written in Chinese.
Covers: Safety and Hazards · Product Overview · Product Features · Application Areas · AT Command Structure · Connection Modes
Latest 崇瀚 manuals
Chonghan CH-M2 Wireless Modem User Manual
User Manual 43 pages · 2.2 MB · ZHThe Chonghan CH-M2 Wireless Modem User Manual provides safety warnings, AT command usage, model specifications, and accessories information.
Chonghan CH-M2 Wireless Modem User Manual
User Manual 43 pages · 2.2 MB · ZHUser manual for the Chonghan CH-M2 wireless modem series, covering safety, AT commands, SMS functions, and hardware specifications.
Chonghan CH-R1 Wireless Router User Manual
User Manual 57 pages · 3.8 MB · ZHUser manual for the Chonghan CH-R1 wireless router covering setup, safety, and troubleshooting.
Chonghan CH-D1 Wireless DTU User Manual
User Manual 27 pages · 797 KB · ZHThe Chonghan CH‑D1 Wireless DTU User Manual provides safety warnings, specifications, AT command usage and installation guidance for the industrial wireless…
Chonghan CH-R1 Wireless Router User Manual
User Manual 59 pages · 3.8 MB · ZHThe Chonghan CH-R1 Wireless Router User Manual provides setup, safety, and operation instructions for the CH-R1 series.
Chonghan CH-M1 Wireless Modem User Manual
User Manual 40 pages · 1.4 MB · ZHChonghan CH-M1 wireless modem user manual with safety, features, AT commands and FAQ for industrial communication.
SZchonghan technology CH-R1T2H1 TD-HSDPA Router Datasheet Manual
SZchonghan CH-D1G2S3 GPRS DTU Datasheet
Datasheet 6 pages · 274 KB · ZHThe SZchonghan CH-D1G2S3 GPRS DTU datasheet provides specifications, features, and technical details for the GPRS data transmission unit.
SZchonghan technology CH-M1G2Z1 GPRS Modem Datasheet Manual(1)
Chonghan CH-M2G5H4 HSUPA Modem Datasheet
Datasheet 5 pages · 244 KB · ZHTechnical datasheet for the Chonghan CH-M2G5H4 HSUPA industrial modem, detailing specifications, features and application areas.
SZchonghan technology CH-M2T2H1 TD-HSDPA Modem Datasheet Manual
SZchonghan technology CH-D1G2N1 GPRS DTU Datasheet Manual
SZchonghan technology CH-M1G1S1 GSM Modem Datasheet Manual
Chonghan CH-M1C1Z2 CDMA Modem Datasheet
Datasheet 6 pages · 257 KB · ZHThe Chonghan CH-M1C1Z2 CDMA Modem datasheet provides specifications, interfaces, and operating parameters for low‑data M2M communications.
SZchonghan technology CH-M1G2S3 GPRS Modem Datasheet Manual
Which document do I need?
User Manual
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Datasheet
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in 崇瀚 manuals
Can the CH-M2 modem be used on an aircraft?
No. The modem must be turned off and cannot be used on any aircraft, whether on the ground or in flight.
What AT command answers an incoming call?
The command "ATA<CR>" is used to answer an incoming call.
How can I send a Chinese SMS with the CH-M2 modem?
Use the AT command "CH-M2G5H5 发送中文短信" to transmit a Chinese text message.
Which AT command answers an incoming call?
The command "ATH<CR>" is used to answer an incoming call.
Can the router be used on an airplane?
No, the device must be turned off on any aircraft, whether on the ground or in flight.
How do I reboot the router through the web interface?
Select the Reboot menu option and confirm to restart the system.
