Traditional non-isolated RS232 often suffers damage due to ground bounce, surges, static electricity, hot plugging, etc. The RSM232 series isolation transceivers utilize unique optoelectronic isolation technology, effectively protecting RS-232 serial devices, and are suitable for harsh environments such as industrial control, power, and medical fields.
Application Examples
Figure 1 Physical Connection Diagram
Why Choose the RSM232 Series Isolation Transceiver Module?
The RSM232 series isolation transceivers adopt power isolation and signal isolation, ensuring complete isolation between the communication bus and the control board, which not only reduces interference on the bus but also enhances system safety and reliability.
The RSM232 series isolation transceivers developed by Zhiyuan Electronics are widely used in automotive electronics, instruments, petrochemical, power monitoring, and other fields due to their standard baud rates and excellent EMC characteristics, making them easy to apply.
Figure 2 Comparison of Conventional Isolation Design and Application Using RSM232P Module
The RSM232 series isolation transceivers retain the design philosophy of traditional isolation circuits, including power isolation and signal isolation. More importantly, they feature a comprehensive testing system and advanced processes to ensure product consistency, with many advantages such as waterproofing, shock resistance, and long lifespan. The potting process provides comprehensive protection for the circuit board and electronic components, shielding them from moisture, vibration, overheating, corrosion, and radiation, thus extending the lifespan of electronic products. The value brought to customers by integrated isolation RS232 communication modules compared to discrete component designs is shown in Table 1.
Table 1 Value Brought to Customers
| Comparison Items | Traditional Solution | New Design Using RSM232 Series Isolation Transceivers |
|---|---|---|
| Cost | High | Low |
| Procurement | Requires ordering discrete components from multiple vendors, cumbersome process | Only one model needed, convenient |
| Stability | Constrained by multiple discrete components | Single device ensures stability and reliability |
| Packaging Form | Unpotted, discrete components mounted on PCB, no protection | Potted, with better isolation, shock resistance, moisture resistance, etc. |
| Performance Testing | Depends on each discrete component supplier |
Passed authoritative testing, test items include: High and low temperature, ESD tests, etc. |
Depending on different application scenarios, select the corresponding isolation transceiver module to achieve different output interfaces. Recommended models are shown below:
Table 2 RSM232 Series Isolation Transceiver Product Models
| Model | Function | Product Features |
|---|---|---|
| RSM232 | Single-channel isolation transceiver |
DC isolation function; Meets EIA/TIA-232-F standards; Minimum data rate of 120Kbps under full load; Thermal protection; Low electromagnetic radiation EME; High electromagnetic interference immunity EMS; Direct use, no additional components required; 3.17~5.25V ultra-wide operating voltage range. |
| RSM232D | Dual-channel isolation transceiver | |
| RSM232P | Full-featured isolation transceiver |
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Contact Information
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Technical Support Phone: 400-888-4005 ext. 2
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