RS232 to RS485 / RS422 Converter
- The CONV – 485 M converts the RS 232 Serial Port Signals to RS 485 (or RS 422) signals for long distance driving, and for interfacing devices supporting RS 485 or RS 422 ports.
- CONV – 485 M is available as an External Standalone Unit enclosed in a plastic casing, which takes power from the supplied Power Adaptor.
- The Converter is populated with Surface Mount Components for good reliability and to reduce the size. At the same time, it is equipped with powerful and reliable Isolation to Data signals and Protection to Serial Port from any high voltage (1500 VA) appearing in RS 485 side.
Features & Specifications
| Serial Interface | |
| Interface | RS 232, RS 485, RS 422 |
| Connectors | 9 Pin D-Type for RS 232, 5 way screw terminal for RS 485 and RS 422 |
| RS 485 | |
| Maximum number of drivers | 256 |
| Maximum number of receivers | 256 |
| Maximum cable length (RS 485) | 1220 m |
| Maximum cable length (RS 232) | 15 m |
| Signal Isolation | Provides optical Isolation to serial port signals |
| Power Isolation | >3000V Isolation between the RS 485 and RS 232 |
| Baud Rate | 300 to 115200 baud. Can support higher speed for shorter distances |
| Indicators (LED) | |
| Power (Red) | Remains on when the unit receives power indicating that the unit is functional and ready to send/receive data |
| TxD (Yellow) | Lights up when there is data to be transferred from RS 485 side to Serial & is OFF when there is no data transfer activity |
| RxD (Green) | Lights up whenever there is any incoming data from the Serial to RS 485 side. Remains OFF when there is no activity. |
| Power | |
| Input | External adaptor with 5V DC at 300mA |
| Enviromental | |
| Operating | 0°C to 70°C |
| Storage | -40°C to 85°C |
| Packaging | |
| Dimensions (L x W x H) | 72mm(L) x 43mm(W) x 21mm(H) |
| Weight | 40g |
| Warranty | |
| Warranty Period | 12 Months |
| Component Used | Complies with ANSI/TIA/EIA-485-A-98 and ISO 8482:1987 (E), UL 1577 |
Applications
- Computer and Automation Systems
- Control Lighting and other systems
- Control pan tilt zoom cameras
- Building Automation
- Control video surveillance systems.
- Interconnect security control panels and access control card readers
- Connecting cameras, scales, meters and scanner
Ordering Informaiton
| Model Number | Description |
| CONV 485 – M | RS 232 to RS 485 / RS 422 Converter |