Product Overview
The FQ-MOD277B RS232 Fiber Optic Converter is a professional serial data transmission solution designed to extend RS232 communication over long-distance optical fiber.
It supports 1-channel full-duplex RS232 with asynchronous point-to-point transmission and data rates from 0 to 115.2Kbps. The Phoenix terminal interface provides a practical connection solution for industrial control equipment, serial devices, and other RS232 applications.
The FQ-MOD277B supports single-mode or multimode fiber, as well as single-fiber or dual-fiber transmission, with SC, FC, or ST optical interfaces. Available configurations provide transmission distances from 2km to 20km.
With a compact 95 × 70 × 25mm enclosure, the converter can be powered locally using an external DC 5V/1A power supply or installed in a compatible 14-slot dual-power rack for centralized power distribution.
Key Features
- 1-channel full-duplex RS232 transmission
- Asynchronous point-to-point communication
- RS232 data rate up to 115.2Kbps
- Phoenix terminal RS232 interface
- 155Mbps optical transmission rate
- Supports single-mode and multimode fiber
- Supports single-fiber and dual-fiber configurations
- Available with SC, FC, or ST optical interfaces
- Transmission distance up to 20km
- 1310/1550nm operating wavelength
- Supports 14-slot dual-power rack centralized power
- Compact 95 × 70 × 25mm design
- Suitable for industrial and professional serial communication
Applications
- Industrial automation and control
- RS232 long-distance communication
- PLC and controller communication
- Serial device networking
- Industrial instrumentation
- Building automation
- Security and access control
- Traffic control systems
- Data acquisition systems
- Remote serial device communication
















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