Industrial Passive RS232 To RS485 Bi-Directional Converter, Terminal Block Interface, No External Power
$8.99
Product Overview
The Valtoris Passive RS232 to RS485 Converter allows for transparent bi-directional communication between legacy RS232 serial ports and modern half-duplex RS485 networks. It’s a pure hardware design, with zero external power requirements. It cleverly draws power directly from the DB9 serial port lines for instant plug-and-play installation in factory environments.
Quick Specs & Compatibility
- Operation: True Passive / Port-Powered (Draws power from TXD, DTR, RTS).
- RS232 Interface: Standard DB9 Female connector.
- RS485 Interface: Secure 3-Pin Terminal Block (485A, 485B, GND) with flange mount.
- Speed & Distance: High-baud rate support up to 230400 bps. Reaches up to 1200 meters on the RS485 side.
- Flow Control: Automatic data direction turnaround (RTS/CTS internally shorted).
- Protection: Built-in TVS (Transient Voltage Suppressor) for reliable industrial data transmission.
| Hardware & Interfaces | |
| Electrical Standard | EIA/TIA RS232C / RS485 |
| RS232 Interface | DB9 Female (Hole-type) |
| RS485 Interface | 3-Pin Terminal Block with Flange Mount |
| Communication Parameters | |
| Operation Mode | Asynchronous Half-Duplex |
| Transmission Rate | 300 ~ 230400 bps |
| Max Distance (RS232) | 15 Meters |
| Max Distance (RS485) | 1200 Meters |
| Signals & Environment | |
| RS232 Signals | TXD, RXD, GND (RTS & CTS internal short-circuit) |
| RS485 Signals | 485A+, 485B-, GND |
| Operating Temp. | -40°C to +85°C |
| Humidity Range | 5~95% RH |
Weight: 0.300 kg
1. RS232 TO RS485 main unit x1
