Chonghan CH-D1 Wireless DTU User Manual, introduces the product features, specifications, application fields and other information
The CH-D1 series wireless DTU from Chonghan is a data‑transmission unit used for serial industrial equipment. It supports GPRS, CDMA and various frequency bands and provides transparent wireless communication via TCP/UDP or serial connections.
This manual includes safety and hazard warnings, contact information, version history, a product list, power and antenna specifications, AT‑command reference, and detailed configuration steps for TCP and UDP communication modes. This manual is written in Chinese.
| Interface | RS-232 (DB9) |
|---|---|
| Power Supply | DC 9V 1A |
| Supported Bands (GPRS) | EGSM 900 MHz, DCS 1800 MHz |
| Supported Bands (CDMA) | 800 MHz |
No. The manual states the device must not be used on any aircraft and must be turned off when on an aircraft.
The device requires a DC 9 V, 1 A power adapter.
It supports TCP client long‑connection, short‑connection, and socket modes, as well as UDP communication modes.