WRT WTZS-212CS3 installation Manual

About this manual

The WRT‑RI smart networking intercom system consists of a building‑level host, user extensions, a management computer and auxiliary equipment. The WTZS-2120CS3 extension can be wall‑mounted or recessed, supports color video, remote unlocking, emergency alarm and optional image capture.

This guide provides safety precautions, step‑by‑step mounting instructions, wiring details, functional usage, technical parameters and a simple fault‑diagnosis table to help installers complete the setup correctly. This manual is written in Chinese.

What's inside

• System Function Overview
• Component Description
• Installation Precautions
• Installation Method
• Usage Functions
• Technical Parameters
• Wiring Function Description
• Simple Fault Troubleshooting

Specifications

Frequently asked questions

What height should the intercom be mounted at?

The intercom should be installed at a visual height of about 145 cm.

How many main units can the system connect to?

The system can connect up to 238 main units.

What type of network cable is required for wiring?

Use Category‑5 UTP twisted‑pair cable (五类双绞线) with T568B wiring.

How many wall units can be added to the system?

The system can support up to five wall units.