Model Number:RS232 to RS485/RS232
Supply Voltage:10-30V
Type:Logic ICs
Condition:New
Active type three isolated RS232 to RS485/RS232 converter, 10-30V DC power supply is a wide range of power supply; signal RS232 to RS485 by high-speed optocoupler isolation; RS485/RS232 output signal through the dual voltage current protection circuit; the above characteristics, the communication converter is suitable to use harsh industrial applications.
The first chapter product introduction
A. Summary
This product is active type three isolated RS232 to RS485/RS232 converter, 10-30V DC power supply is a wide range of power supply, through the step-down switching regulator circuit to 5V, 5V power supply by 2 DCDC power supply isolation module respectively to the RS232 and RS485 circuit power supply to power isolation by RS232 RS485; signal through high-speed optocoupler isolation; RS485/RS232 output signal through the dual voltage current protection circuit; the above characteristics, the communication converter is very suitable for industrial applications using harsh.
Two. Characteristic
1. Power supply adaptability: 10-30V DC power supply with a wide range, with polarity protection.
2. Three isolated power supply: power supply, RS232 signals and RS485/RS232 isolated from each other.
Three Communication signal isolation: using 6N137 high speed optocoupler isolation signal
4. Communication output signal protection: RS485, RS232 communication signal output interface using overvoltage and overcurrent protection.
Five Signal indication: LED power indication, data sending and receiving instructions.
Three. Technical index
| project | parameter |
| Computer terminal RS22 | 1.Baud rate: 300BPS - 115200bps.. 2.Interface protection: communication interface using overvoltage and over current dual protection |
| Computer terminal RS22 and RS232/RS485 Communication isolation between | 1.Signal: 6N137 high-speed optocoupler isolation. 2.Power isolation: dual DCDC isolated power module isolation 3.Isolation voltage: 1500V (power supply, RS232 and RS232/RS485) |
| RS232RS485 Communication output | 1.Baud rate: 300BPS - 115200bps.. 2.Interface protection: the output interface is protected by over current and over current. |
| Module size | A.Separate module size: 104mm*72mm*26mm B.With terminal and guide rail box size: 124mm*72mm*45mm |
| Installation method | Standard DIN guide rail installation (35mm guide rail or high and low track) |
| work environment | Temperature: -10℃ ~ +55℃ temperature humidity: 35~85% (not dew) |
| Working power supply | 1.Power supply voltage: 10-30V power supply, with polarity protection 2.Power consumption: less than 2W |
Four. Product appearance
Five. Function description of module indicator
1. POWWorking status indicator
2. TXDSend status indicator
3. RXD:Communication receiving status indicator
Six. Terminal definition
| Interface area | Name | Explain |
| Up RS232 | RS232 | Computer side up DB9RS232 interface socket |
| Power supply | +Vs | Module power supply positive |
| GND | Module power supply negative |
| Down RS485 | R | RS485One end of the termination resistor, which needs to be used when connecting with A |
| A | RS485Communication A |
| B | RS485Communication B |
| Down RS232 | TXD | RS232Communication transmitter |
| RXD | RS232Communication receiver |
| GND | RS485Communication + |
Seven. Typical application wiring diagram
Eight. Principle block diagram
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