Isolated In-line Serial Converters Models 4WSD9OTB and 4WSD25OTB convert RS-232 to RS-422 or RS-485 (2 or 4-wire). 2,000V two-way optical isolation protects devices from power surges, spikes and ground loops in harsh electrical environments. These in-line converters support distances up to 1,200 m (4000 ft.) and data rates up to 115.2 kbps. Switchable modes support 2-wire RS-485, 4-wire RS-485, and full duplex RS-422. Available with female DB9 or DB25 RS-232 inputs. Removable terminal blocks for RS-422/485 and external power make wiring easy. Accepts external power from 10-48 VDC from an industrial power source or plug in power supply. The power supply is sold separately
Products specifications
| Attribute name | Attribute value |
|---|
| Width | 1.69" |
| Depth | 3.86" |
| Height | 0.906" |
| Certification | 2004/108/EC, 2011/65/EU, EN 55022: +AC, EN 61000-1-1, EN61000-4-2, EN61000-4-3: +A1 +A2, EN61000-4-4, EN61000-4-6 |
| RS-232 signals | GND |
| Isolation | 2 kV |
| RS-422 signals | GND |
| Product color | Blue |
| Baud rate | 115.2 Kbit/s |
| RS-485 signals | Data+, Data-, GND |
| Connector 2 | Terminal block |
| Connector 1 | DB-9 |
| LED indicators | Y |
| Output interface | RS-485 |
| Host interface | RS-232 |
| Input voltage | 10 - 48 V |
| Operating temperature (T-T) | 0 - 70 °C |
| Storage temperature (T-T) | -40 - 85 °C |