The Model485P from 3onedata is a single RS-232 to RS-485/422 bidirectional interface converter. The RS-485/422 port supports serial port self-adaption technology that identifies the RS-485/422 protocol automatically without needing to set a switch. The 1500 W surge protection on the serial ports, 15 kV electrostatic protection, and 2500V photoelectric isolation protection effectively mitigates current surges and lightning strikes.
The Model485P features a rugged, fanless enclosure with dual mounting brackets, allowing it to be secured in nearly any location. It offers low power consumption, a wide operating temperature range. Suited for indoor and outdoor applications, it’s ideal for converting serial lines found in guard stations, controls, parking lots, and security systems.
| Technology | |
| Category | Serial Connectivity | 
| Total Ports | 2 | 
| Transmission Distance | 15 meters (RS-232 port); 1800 meters (RS-485/422 port) at 115,200 bps | 
| Serial Interface | |
| Class | Serial to Serial | 
| Serial Ports | 1 RS-232/422/485 | 
| Baud Rate | 110 bps to 115.2 kbps | 
| Data Bits | 8 bit | 
| Parity | None, Odd, Even, Mask, Space | 
| Stop Bits | 1 bit, 1.5 bit, 2 bit | 
| Flow Control | RS-485 adopts automatic data flow control technology which can detect and control data transmission direction automatically | 
| Power | |
| Power Consumption | Standby: 70 mA, Operating: 200 mA | 
| Input Voltage | 9 VDC, DC round head | 
| Surge Protection | 1500 W surge protection, 15 kV electrostatic protection, and 1500 V photoelectric isolation | 
| Mechanical | |
| Connector Type | DB9 female (RS-232); DB9 male, RJ45, or adapter for 5-pin pitch terminal block (RS-485/422) | 
| Enclosure | IP30 protection, Metal | 
| Mounting | Wall mount flanges | 
| LED Indicators | Power supply indicator, serial port data sending/receiving indicator | 
| Weight | 200 g | 
| Dimensions | 62.4 x 22 x 93 mm | 
| Ratings | |
| Operating Temperature | -20 to 75°C | 
| Storage Temperature | -25 to 85°C | 
| Humidity | 5 to 95% non-condensing | 
| RoHS Compliant | Yes | 
| Certifications | FCC, CE | 
| Warranty | 3 Years | 
| Download Name | File Size | 
| 3oneData Model485P Data Sheet | 1.04MB | 
| Image | Model | Product Name | Price | |
![]()  | DIN-RAIL-KIT-2 | Antaira DIN-RAIL-KIT-2 Heavy-Duty, Stainless Steel DIN-Rail Clip | $30.00 | |
![]()  | DIN-RAIL | DIN-Rail Track, Choice of 10 or 20 Inches Length | $8.00 | |
![]()  | MDR-20 | MEAN WELL MDR-20 (-12,-24) 20-Watt Miniature DIN-Rail Power Supply, 12V or 24V | $38.88 | |
![]()  | DR-15 | Antaira DR-15 (-12, -24) 15-Watt Industrial DIN-Rail Power Supply, 12V or 24V Output | $0.00 |