Technical manual of CH-3800 access controller, introduces the product's usage methods and instruction codes
The Sunion CH-3800 series access controller uses a standard UART RS‑485 interface with a baud rate of 9600 N 8 1. It communicates using a packet structure that includes SOH, ID, PT, data, ETX and BCC bytes, allowing reliable data exchange between the controller and a host PC.
The manual defines the supported RFID tag types (e.g., TI 134.2 kHz, EM 125 kHz, ISO15693 13.56 MHz, Mifare 13.56 MHz) and provides a full list of command codes for reading, writing, and managing illegal access records. It also explains how the controller reports success ("WV") or failure ("N") for each command. This manual is written in Chinese.
| Controller ID range | 01‑99 for each of ID1 and ID2 |
|---|
The controller returns the value “WV” for success and “N” for failure.