The WRT‑RI smart network intercom system includes a main unit, user extensions and a management computer. The YPZS‑212B (standard) and YPZS‑212BD4 (security) extensions provide visual display, remote unlocking, alarm zones and messaging functions.
This guide explains the recommended mounting height, wall‑mount installation steps, wiring connections, and simple fault troubleshooting. Follow the precautions and wiring diagrams to ensure reliable operation. This manual is written in Chinese.
| Recommended mounting height | 145 cm |
|---|---|
| Maximum main units supported | 238 main units and 5 wall units |
| Disarm password length | up to 8 digits |
| Switch signal minimum duration | greater than 200 ms |
The guide recommends installing the visual extension at a height of 145 cm.
It can connect up to 238 main units and 5 wall units.
The disarm password can be up to 8 digits long.
Turn off the power, check the wiring in sections, and contact the dealer or service if the fault persists.