Quelltext der Seite WSAL23376 – RS232 TO RS485 (D)/en

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'''Documentation notice:''' This technical documentation was independently rewritten from an archived supplier source. Check technical details and commands against the product version and manufacturer documentation before use.

== Summary ==
Active, galvanically isolated RS232-to-RS485 converter for DIN-rail mounting. It converts unbalanced RS232 signals into balanced differential RS485 signals and supports a transmission rate of 300 to 115200 baud.

== Related products at JW Tech ==
* [https://shop.jw-tech.eu/p/WSAL23376 WSAL23376 – RS232 To RS485 Converter, Active Digital Isolator, Rail-Mount support, 600W Lightningproof &amp;amp; Anti-Surge, Multi-isolation protection]
* [https://shop.jw-tech.eu/p/WSAL27830 WSAL27830 – RS232 To RS485 Converter, Active Digital Isolator, Rail-Mount support, 600W Lightningproof &amp;amp; Anti-Surge, Multi-isolation protection]

== Technical overview ==
* Power input: DC 5 V to 36 V via screw terminals.
* Transmission rate: stable at 300 to 115200 baud.
* Isolation: unibody digital signal and power isolation without external power at the isolated terminal.
* Protection circuitry: onboard TVS against overvoltage, lightningproof with 600 W rating, and ESD protection (15 kV).
* Additional protection: self-recovery fuse and protection diodes against overcurrent and overvoltage.
* RS485 output terminal with optional 120-ohm resistor, enabled via jumper.
* Indicator LEDs: PWR (red), TXD (green), RXD (blue) indicate power, transmit, and receive activity.
* Enclosure: ABS, suitable for 35 mm DIN rail; dimensions 91.6 x 58.7 x 23.3 mm.

== Notes and version constraints ==
* The exact pinout and precise jumper positions must be confirmed on the physical device.
* When using multiple nodes in point-to-multipoint mode, a relay may be required to keep the node count within the 16-node limit.
* Proper grounding connections (SGND/GND) must be verified before commissioning.
* Compatibility with existing RS232 devices should be validated in the target system.
* Protection ratings (e.g., 600 W lightningproof) are based on manufacturer claims and should be independently validated for critical applications.

== Source and revision record ==
* [https://www.waveshare.com/wiki/RS232_TO_RS485_(D) RS232 TO RS485 (D) - Waveshare Wiki]
* Source revision: 88787
* Captured: 2026-09-04T02:54:35+00:00
* SHA-256: <code>04bac7099ef6fc5ef2928e2592d471bc4b5f7162704c725e90c8a0c18b8264a1</code>