Condition:New
Type:Logic ICs
Product description:
With the continuous development of the PC industry, the USB interface is gradually replacing various low-speed peripheral interfaces of the old PC. However, many important devices in the industrial environment still use the RS-485/RS-422 interface interface design, so many users use USB to RS-485/RS-422 converter to realize data transmission between PC and RS-485/RS-422 equipment.
ECS8402 is a universal USB/RS-485/422 converter, no external power supply, compatible with USB, RS-422, RS-485 standards, and can convert single-ended USB signals into balanced and differential RS-422 or RS-485 Signal, provide the surge protection power for each line, and the surge voltage generated on the line for various reasons. The extremely small inter-electrode capacitance ensures the high-speed transmission of the RS-422/RS-485 interface, RS-422, RS-485 terminals Connect through RJ-45 and DB9 male connector. The converter is equipped with zero-delay automatic transmission and reception conversion, and the I/O circuit automatically controls the direction of the data flow without any handshake signals (such as RTS, DTR, etc.) without jumper wire settings to achieve full duplex (RS-422) , Half-duplex (RS-485) mode conversion, plug and play. Ensure that it is suitable for all existing communication software and interface hardware.
The ECS8402 interface converter can provide reliable connection for point-to-point and point-to-multipoint communication. Each point-to-multipoint converter can connect 32 RS-422 or RS-485 interface devices, and the data communication rate is 300-921.6 Kbps, with power indicator light and data flow indicator light to indicate fault conditions, and the supported communication methods are USB to RS-422, USB to RS-485 conversion.
Product Features:
The ECS8402 interface converter supports the following four communication methods:
1. Point-to-point/four-wire full duplex
2. Point-to-multipoint/four-wire full duplex
3. Point-to-point/two-wire half-duplex
4. Point-to-multipoint/two-wire half-duplex
When the converter is used as a full-duplex or half-duplex connection, in order to prevent signal reflection and interference, a matching resistor must be connected to the terminal of the line (parameter is 120 ohm 1/4W)
Please read the product manual carefully before installing the ECS8402 interface converter, and connect the communication cable equipped with the product to the USB interface end. This product uses USB/DB-9 and a universal connector as the input/output interface, which is automatically implemented without jumper settings. RS-485 or RS-422 communication mode, can use twisted pair or shielded wire, connection and disassembly are very convenient. T/R+T/R- stands for transmitting and receiving A+/B-RXD+/RXD- stands for receiving A+/B-, GND stands for common ground, point-to-point, point-to-multipoint, half-duplex communication connection two One line T/R+, T/R-, point-to-point, point-to-multipoint, full-duplex communication is connected to four lines T/R+, T/R-, RXD+, RXD-.
Performance parameters:
1. Technical standards: Comply with USBV1.1, 1.0, 2.0 and EIA RS485/422 standards
2. USB signal: VCC, DATA+, DATA-, GND, FG
3. RS485 signal: T/R+, T/R-, GND
4. RS422 signal: T/R+, T/R-, RXD+, RXD-, GND
5. Working mode: asynchronous, point-to-point or multi-point, 2-wire half-duplex, 4-wire full-duplex 6. Direction control: use data flow automatic control technology to automatically determine and control the data transmission direction
7. Baud rate: 300-921.6Kbps, automatic detection of serial port signal rate
8. Load capacity: support point-to-multipoint, each converter can allow up to 32 RS422 or RS-485 interface devices to be connected
9. Transmission distance: 1200 meters for RS-485/422 port (at 9600bps), USB port no more than 5 meters
10. Interface protection: surge protection, ±15KV electrostatic protection
11. Interface form: USB port type A interface male, DB9 male connector connection
12. Signal indication: 2 signal indicator lights to send (TXD) to receive (RXD)
13. Transmission medium: twisted pair or shielded wire
14. Transmission rate: 128000bps to 300M
38400bps to 600M
9600bps to 1.2KM
15. Dimensions: 1555mm×36mm×16mm (length×width×height)
16. Operating environment: -25℃ to 70℃, relative humidity is 5% to 95%
17. Transmission distance: 0-1200 meters (128000bps-9600bps)
18. Support system: Windows 98/98SE/ME/2000/Server2003/XP
Windows Vista 32bit/64bit
Windows 7 32bit/64bit
Windows CE
MacOS
Linux 2.4 and above
