Industrial Grade 4 Channel Serial Data Fiber Optic Modem

This device uses industrial-grade and large-scale FPGA design, providing 4 serial ports, with each port supporting three interfaces: RS232, RS422, and RS485 simultaneously. It is the optimal choice for connecting Remote Terminal Units (RTU) to a host (HOST) or Distributed Data Acquisition System (SCADA) controllers, offering a high cost-performance ratio. Its effective communication distance can reach up to 120KM, and the serial port’s communication rate can achieve 0-115.2KBPS.

● The device provides 4 serial ports, each offering RS232, RS422, and RS485 serial interfaces simultaneously (the interface type can be set via a DIP switch).

● It is capable of automatically detecting and controlling RS-485 data flow without the need for handshake signals to control the direction of data flow.

● The device features the ability to automatically detect the baud rate of serial port signals.

● It automatically detects whether the lack of fiber received is due to the opposing device being powered off or a fiber break, and indicates this on the LED.

● The serial data channels can transmit asynchronous serial port data with baud rates auto-adapting from 300-115.2Kbps.

● The serial port lightning protection meets the IEC 61000-4-5 (10/700μS) standard: Differential mode: 6KV, Impedance (2Ω); Common mode: 6KV, Impedance (2Ω).

● It supports a wide range of AC and DC input with internal isolation, redundant dual power supply input with overload protection, and reverse polarity protection.

● The device complies with industrial grade electromagnetic compatibility requirements.

● It features superior lightning protection: resistant to lightning strikes, can withstand induced high voltage, surge protection, etc.

● It has an IP40 enclosure rating, capable of withstanding harsh environmental conditions.

● It allows for DIN-rail or wall-mounted installation.

● The device operates over a wide temperature range: from -40℃ to +85℃.

● Fiber Optic

Fiber Types: Single-mode and Multi-mode

Fiber Interfaces: FC/SC/ST/LC (SFP)

Wavelength: 850nm/1310nm for Multi-mode; 1310nm/1550nm for Single-mode

No-relay Transmission Distance: 20~120Km

Typical Transmission Power:

Single-mode 1310/1550nm: ≥-9dBm

Multi-mode 850nm: -18dBm

Multi-mode 1310nm: -25dBm

Reception Sensitivity Range: -28dBm to -40dBm

● RS232/422/485 Ports

Standards

EIA/TIA-232 RS-232 (ITU-T V.28)

EIA/TIA-422 RS-422 (ITU-T V.11)

EIA/TIA-485 RS-485 (ISO/IEC8284)

Serial Port Interfaces:

RS-422: TxD+ TxD- RxD+ RxD-

RS-485 4 wires: TxD+ TxD- RxD+ RxD-

RS-485 2 wires: A (corresponds to Txd+) B (corresponds to Txd-) Signal Ground

RS-232: RXD TXD Signal Ground

Connectors: Phoenix terminal

● Power Supply

Redundant Dual Power Input: DC9-48V, Power Consumption <5W

Overload Protection: Supported

Reverse Polarity Protection: Supported

Redundancy Protection: Supported

Terminal Type: 4-pin 5.08mm pitch plug-in terminal

● Working Environment

Operating Temperature: -40℃ to +85℃

Operating Humidity: 5% to 95% (non-condensing)

Storage Temperature: -40℃ to +90℃

Storage Humidity: 5% to 95% (non-condensing)