RS485 Sharer can let multiple different control devices communicate by RS485 or RS422 and control multiple controlled devices on the same bus, and solve the operation conflict problem between multiple control devices.
The YF-504B RS485 sharing device allows several control units—such as DVRs, matrix switches, control keyboards, and other RS485/RS422 equipment—to share a single RS485 bus and simultaneously control multiple devices, eliminating operation conflicts.
Key features include real‑time output without data loss, independent protocol and baud‑rate settings for each device, hardware‑level signal bridging, and the ability to cascade multiple sharing units to expand input capacity. The device is powered by 9‑12 V DC at up to 500 mA and includes wiring diagrams for proper connection. This manual is written in Chinese.
| Input Power | DC9~12V, 500 mA |
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Yes, several sharing units can be cascaded to increase the number of input devices.