HAC HAC-MRT_S22R/MU Radio Modem User Manual

This manual covers the HAC-Smart Series Radio Modem, including model specifications, LED indicators, DIP switch configuration, dimensions, and USB driver…

Brand: HAC
Category: Other Electronics
Document type: User Manual
Language: Chinese
Pages: 11
File format: PDF
File size: 1 MB
Published: 16 October, 2026
Updated: 16 October, 2026
MD5 checksum: AF2FB422CDDA63E1802085CFD64AE4EB
PDF: HAC HAC-MRT_S22R/MU Radio Modem User Manual PDF

About this manual

The HAC-Smart Series is a product derived from standard wireless modules by Shenzhen Huao Tong Communication Technology Co., Ltd. It features a serial interface, status indicators, and parameter selection capabilities. The series can embed various HAC wireless modules such as HAC-UP, UM, UN, LM, LN, and MRT_S22R. This manual is written in Chinese.

What's inside

Overview
Features
Model Description
LED Indicators
DIP Switch Definition
Dimensions and Installation
Standard Configuration
USB Driver Installation

Specifications

Supported Modules	HAC-UP, UM, UN, LM, LN, MRT_S22R
Power Supply (MU)	5V
Antenna	10cm SMA bend helical antenna
USB Cable (MU)	1.5m

Frequently asked questions

What is the default channel for the DIP switch?

The default setting is SW 321=111, which corresponds to Channel 7.

How do you select the parity mode?

Set the 5th DIP switch to 1 for even parity (8E1) or to 0 for no parity (8N1).

How do you enable the relay function?

Set the 5th DIP switch to 1 to open the relay function.

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