Descriptions:
In order to carry on the remote data communication between computer with different standard serial ports and external equipments or intelligent devices, we should realize exchange between standard serial ports.
This converter is compatible with RS-232C, RS485, RS422 standards, enabling transfer RS232 signals to Balance difference RS485 or RS422 signal. converter can extends RS232's transmission distance to 1.2KM, drive by using special RS232 charge Pump without external power, get power without initialized RS-232. Inside the converter, there is a zero-delay auto transfer and unique I/O circuit automatically controlling Data flow direction without any hand-shake signals (e.g. RTS, DTR, etc). The exchange of Full-duplex (RS-422) and Half-Duplex modes can be realized without jumper, so it ensures the program under the way of RS232 full-duplex and half-duplex to run without any modifications, so to ensure it compatible with current operation software and interface hardware, and transmission speed as 300-115.2 Kbps. In can be used between main controllers, between main controller and panel machine or external equipment to create opoint-to-point, point-to-multipoint remote multi-machine communication network and multi-response communications.
Features:
- Meets EIA-232 to EIA-485 specifications (with external power)
- Working method: Asynchronous full-duplex, half-duplex differential transmission automatic selection, no jumper setting required.
- TTL
- Transmission Media: shielded twisted pair or line
- Transfer speed: 300 - 115.3Kbs
- Working environment: -25 ~ 70 Celsius degree temperature, 0% ~ 95% relative humidity
- Transmission Distance: 1200meters (RS-485 terminal); 5 meters (RS-232 terminal)
PIN Assignment
DB9 Female (Input)
1.Protected
2.Receive data : SIN (RXD)
3.Send data: SOUT (TXD)
4. Data Terminal Preparation: DTR
5.Signal Ground: GND
6. Data Preparation: DSR
7.Request to send: RTS
8.Remove sending: CTS
9.Rign Instructions: R1
DB9 Male (Output)
RS-422 Full Duplex---------------RS-485 Full Duplex
1.T/R +：Send (A+)----------------RS-485 (A+)
2.T/R -：Send (B-)------------------RS-485 (B-)
3.RXD +：Receive (A+)------------------Blank
4.RXD -：Receove (B-)------------------Blank
5.GND：Ground Line---------------Ground Line
6.VCC：+5V stand-by power input---+5V stand-by power input
Note:
- All trade names are registered trademarks of respective manufacturers listed.
Package Includes:
- SERIAL RS232 TO RS422 / RS485 CONVERTER x 1
Packaging:
- Box
