Product description and application guide for Nanhua industrial telephones (DT801, DT802, DT803) suitable for harsh environments like ports and ships.
This document describes the Nanhua DT801/DT802/DT803 series of industrial telephones designed for use in harsh environments such as ports, ships, power plants, steel mills, railway tunnels, and pipe corridors. Key features include digital network audio technology for strong anti-interference capabilities, high-definition voice quality with echo cancellation, and support for third-party device integration via standard protocols. This manual is written in Chinese.
The DT801C works with a DC24V power supply.
The built-in speaker has a rating of 5W.
You must use shielded wire and connect the shielding layer correctly.