Key facts
- Manuals
- 1
- Languages
- ZH
- Last added
- 2012-01-10
Featured YF-504B manuals

YF-504B RS485 Sharing Device Manual
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.
Covers: Product Overview · Features · Power Supply · Connection Diagram · Accessories
Latest YF-504B manuals
YF-504B RS485 Sharing Device Manual
User Manual 1 pages · 300 KB · ZHThe YF-504B RS485 sharing device manual explains how to connect multiple RS485/RS422 controllers to a shared bus without communication conflicts.
Which document do I need?
User Manual
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in YF-504B manuals
Can multiple sharing devices be cascaded?
Yes, several sharing units can be cascaded to increase the number of input devices.
