The DELTA IFD8500 is a high-performance, isolated interface converter designed for seamless communication between RS-232 and RS-422/RS-485 networks. Engineered for industrial automation and harsh environments, it ensures signal integrity, noise immunity, and equipment protection.
Key Features
- Full Isolation Protection – 2.5 kV RMS isolation prevents ground loops and protects connected devices from surges and voltage spikes.
- Dual Conversion Modes – Switch-selectable RS-422 or RS-485 operation on the output side.
- Long-Distance Transmission – RS-485/422 supports communication up to 1200 meters (4000 feet).
- High-Speed Data Rates – Supports baud rates up to 115.2 kbps.
- Automatic Data Flow Control – For RS-485 (built-in auto RTS direction control, no programming needed).
- Durable Industrial Design – DIN-rail mountable, compact metal housing for use in control cabinets.
- LED Indicators – Power (PWR) and data transmission (TXD/RXD) status.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | IFD8500 (IFD85006W3430063) |
| Input Interface | RS-232 (DB9 female) |
| Output Interface | RS-422 / RS-485 (terminal block) |
| Isolation Voltage | 2.5 kVrms |
| Baud Rate | 300 bps – 115.2 kbps |
| RS-485/422 Distance | Up to 1200 m |
| RS-232 Distance | Up to 15 m |
| Power Supply | 10–30 VDC (terminal block) |
| Operating Temp. | -10°C to +60°C (14°F to 140°F) |
| Mounting | DIN-rail or panel |
| Origin | China |
| Part/Serial Ref. | IFD85006W3430063 |
Applications
- PLC communication expansion (Delta, Siemens, Mitsubishi, etc.)
- SCADA systems and remote data acquisition
- Industrial instrumentation and legacy RS-232 device upgrades
- Building automation and access control systems
- Serial port extension and noise-prone factory floors















