Product Overview
The FQ-MOD218 and FQ-MOD277A RS232 Fiber Optic Converters are industrial serial communication converters designed to extend RS-232 data over long distances using fiber optic transmission.
The converters support 1-channel full-duplex RS-232 communication with asynchronous point-to-point transmission at data rates from 0 to 115.2Kbps. RS-232 electrical signals are converted to optical signals for reliable long-distance transmission with strong resistance to electromagnetic interference.
Two DB9 interface configurations are available. The FQ-MOD218 series uses a DB9 female connector, while the FQ-MOD277A series uses a DB9 male connector.
The series supports multimode dual-fiber, single-mode dual-fiber, and single-mode single-fiber configurations, with SC, FC, and ST optical interface options. Transmission distances range from 2km to 20km, depending on the selected fiber configuration.
With a compact 95 × 70 × 25mm enclosure, the converter is suitable for industrial automation, serial device networking, control systems, and long-distance RS-232 communication.
Key Features
- 1-channel full-duplex RS-232 fiber conversion
- Asynchronous point-to-point communication
- Data rate from 0 to 115.2Kbps
- DB9 female or DB9 male interface options
- Supports single-mode and multimode fiber
- Supports single-fiber and dual-fiber configurations
- SC, FC, and ST optical interface options
- Transmission distance up to 2km with multimode fiber
- Transmission distance up to 20km with single-mode fiber
- 155Mbps optical transmission rate
- 1310/1550nm operating wavelength
- Strong resistance to electromagnetic interference
- Compact 95 × 70 × 25mm enclosure
- Supports local or 14-slot rack centralized power
DB9 Interface Options
| Model Series | RS-232 Interface |
| FQ-MOD218 | DB9 Female |
| FQ-MOD277A | DB9 Male |
Applications
- Industrial RS-232 communication
- Industrial automation systems
- PLC and control systems
- Serial device networking
- Remote data acquisition
- Industrial monitoring systems
- Building automation
- Access control and security systems
- Metering and instrumentation
- Long-distance RS-232 transmission















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