The CH-M2C3H2 EV-DO Modem from Chonghan Technology is a dual-band wireless modem designed for low data rate communication such as SMS, CSD, and dial-up internet. It features a rugged metal casing, standard serial data interface, and SIM card slot.
CH-D1 Wireless DTU Quick Start Guide is the quick start guide of Chonghan Wireless DTU series products. It mainly introduces the basic knowledge of DTU, test environment, test instructions, TCP communication mode, TCP client Serial N communication mode and other content.
This document is a quick user manual for Chonghan Technology CH-M1 wireless modem. The document includes important tips, safety and hazards, liability limitations, and also introduces the features and characteristics of the product and its usage.