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I. Product Overview

YT-892 is a universal USB2.0 to RS485/422 converter that uses FTDI chips internally and is compatible with USB2.0 and RS-485 standards. It can convert single ended USB signals into balanced differential RS-485/422 signals, providing 600W surge protection per line to cope with surge voltages generated by various reasons on the line. The extremely small interpole capacitance ensures high-speed transmission of the RS485 interface, The RS-485/422 end is connected through a crimping terminal connector. The converter is equipped with zero delay automatic transmission and conversion, and its unique I/O circuit automatically controls the direction of data flow. It can achieve half duplex (RS-485) or full duplex (RS-422) mode conversion without the need for any handshake signals such as RTS and DTR jumper settings, ensuring plug and play compatibility with all existing communication software and interface hardware. The YT-892 interface converter can provide reliable connections for point-to-point and point-to-multipoint communication. Each point-to-multipoint converter can connect 32 RS-485 interface devices, with a data communication rate of 300-11500bps and a supported communication method of USB2.0 to RS-485/422 conversion.

II. Performance parameters
1. Standard: Complies with the EIARS-485 standards of USBV2.0, 1.1, and 1.0,
2. USB signal: VCC, DATA+, DATA -, GND
3. RS-485 signals: T/R+, T/R -, GND
4. Working mode: 2-wire half duplex, point-to-point or multi-point
5. Direction control: Adopting data flow automatic control technology to automatically identify and control the direction of data transmission
6. Baud: 300-115200bps, automatic detection of serial port signal rate
7. Load capacity: Supports point-to-point to multipoint, with each converter allowing for the connection of 32 RS-485 interface devices
8. Transmission distance: RS-485 terminal 1200 meters, USB port no more than 5 meters
9. Interface protection: RS485/422 port provides 600W lightning and surge protection per line, and ± 15KV static protection
10. Interface form: USB Class A interface male, 485/422 terminal crimping terminal connector connection
11. Transmission medium: twisted pair or shielded wire
12. Transmission rate: 115200bps to 300M (38400bps to 600M, 9600bps to 1.2KM)
13. Boundary dimension: 66mmX33mm X16mm
14. Operating environment: -25 ℃ to 70 ℃, relative humidity of 5% to 95%

15. Supports Windows 95/98/2000/xp, Win 7, Win10, and Win11

III. Product List

1. YT-892 USB2.0 to RS485/422 converter 1
2. 1 drive disc
3. 1 product manual

System parameters
Interface: Compliant with USB2.0 and RS485 standards
RS-485 output: 5-bit crimping terminal
Working mode: Supports asynchronous transmission
Baud: 300 ～ 115.2Kbps, automatic detection of serial port signal rate
Direction control: automatic discrimination and control of data transmission direction
USB cable length: 1.5 meters
Anti static protection:+/-15KV ESD anti static protection
Lightning protection: Each RS485/422 output terminal has 600W lightning protection for each line
Work environment
Working temperature: -20 ℃ to+85 ℃
Humidity: Relative humidity 5% to 95%
Working power supply
Input power supply: Internal power supply through USB port, no need for external power supply
Power consumption: Static power consumption within 150mA
Mechanical structure
long × wide × Height: 66mmX33mm X16mm
Shell: plastic shell
Color: Black
Weight: 120g