Isolated RS-485 transceiver

RSM series isolation transceiver is a module product applied to industrial RS-485 bus transmission and isolation, which can effectively solve the problems such as bus interference and abnormal communication. Compared with the traditional design, RSM series products have built-in complete isolation DC-DC circuit, signal isolation circuit, RS-485 bus transceiver circuit and bus protection circuit. They have higher integration and reliability and can effectively help users improve the protection level of bus communication.

Baud rate: 500Kbps, 115.2Kbps, etc.
Number of nodes: 256, 128, 64, 32, etc.
Number of channels: Single channel, dual channels, etc.
Operating temperature: -40~85℃ or -40~105℃
Isolation voltage: 2500VDC or 3500VDC.
Mini small size or standard modular package
Shell and encapsulating materials meet UL94 V-0 standard.
Low electromagnetic radiation and high electromagnetic interference resistance

Isolated RS-485 transceiver

Selection Table

Product SN	Product data	Characteristics	Supply voltage	Baud rate (bps)	Isolation voltage (VDC)	Number of noes	Environment temperature (℃)	Sample application
RSM485MG	Data download	National production, small size, automatic flow control	3.15V~5.25V	500K	2500	64	-40~105	Sample application
RSM(3)485JCHT	Data download	National production, good compatibility of bus	3.3V;5V	500K	5000	256	-40~105	Sample application
RSM(3)485ECHT	Data download	Good bus compatibility	3.3V;5V	500K	2500	256	-40~85	Sample application
RSM(3)485PHT	Data download	Automatic flow control type	3.3V;5V	500K	2500	128	-40~85	Sample application
RSM(3)485IDHT	Data download	Dual-channel isolation	3.3V;5V	115.2K	2500	32	-40~85	Sample application
RSM(3)422	Data download	Isolation RS-422	3.3V;5V	10M	2500	256	-40~85	Sample application
RSM(3)422P	Data download	Point-to-point high-speed RS-422	3.3V;5V	10M	2500	2	-40~85	Sample application

Evaluation kit

Product model	Data download	Supply voltage	Protocol	Operating temperature range	Sample application
CTM-RSM-Eval	Data download	12~36VDC	CAN/RS-485/RS-232	0~60℃	Sample application

[Package library] Package and download of power supply and isolation module products

Isolated RS-485 transceiver brand

Zhiyuan Electronics released the first isolated RS-485 transceiver in 2003, and has accumulated the serial bus isolation technology for nearly 20 years. At present, the transmission rate of RSM series isolated transceivers is between 115.2Kbps~10Kbps. It is widely applied in industrial fields such as industrial communication, coal mine industry, power monitoring, building automation, etc. It is a representative product of isolated RS-485 transceivers in China.

Isolated RS-485 transceiver brand

Miniature isolated RS-485 transceiver

RSM485M adopts standard circuit integration technology to reduce the package size, which can not only effectively improve the protection level of bus communication but also ensure the compactness of user’s PCB.

Miniature isolated RS-485 transceiver

Support the isolation voltage up to 3500VDC.

RS-485 isolation transceiver can support the isolation voltage up to 3500VDC, and provide 2500VDC and other solutions according to actual application requirements. It can effectively solve the communication abnormality caused by signal interference in industrial field and is widely applied in industrial communication, medical treatment, electric power and other industries.

Support the isolation voltage up to 3500VDC.

A full range of products have passed the EMC test.

RSM series isolation transceivers have passed the complete EMC test, and the electrostatic immunity is as high as 4KV and surge immunity is as high as 2KV. They can be applied to most complex and harsh industrial sites, providing users with stable and reliable RS-485 communication isolation solutions.

Wide temperature adaptation range, conquering the difficulties in “hot” and cold industrial site

RSM series isolated transceivers have a high temperature adaptation range of -40℃~105℃, which can meet the requirements of most complex and harsh industrial field applications.

Modular design greatly shortens the user development cycle.

RSM series isolation transceiver adopts mature and reliable serial bus isolation technology. Compared with the traditional discrete device solutions, the product has higher integration and reliability, which can effectively improve the protection level of bus communication, greatly reduce the purchase and production costs of users and shorten the development cycle.

Complete quality assurance system, stable and reliable performance

Zhiyuan Electronics has a complete product quality assurance system, and it has accumulated serial bus isolation technology for nearly 20 years. From product development, testing, production to usage, it is closely linked to ensure the stable and reliable performance of RSM series isolation transceivers.

Stable, reliable, and widely applied

RSM series isolated transceiver has been verified in the market for nearly 20 years, and it has been widely applied in industrial communication, coal mine industry, power monitoring, building automation and other industrial fields. It is a widely used isolated RS-485 transceiver in China.