This product is an Ethernet IEEE 802.3 media converter. The device has four 1000Mbps Ethernet ports, providing a wire-speed bandwidth of 1000Mbps. It supports fiber optic distances of 20/40/60/80/120 kilometers. The device also includes two selectable RS232/422/485 serial ports or four DI/DO channels.
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Industrial Din Rail 2*Serial or 4*DI/DO + 4*GE Optical Converter FCP-G4D2
Overview
Parameters
|
Model |
FCP-G4D2 |
|
Function |
Industrial-grade rail-mounted optical fiber converter with 4-channel 1000Mbps Ethernet and 2-channel RS232/422/485 or 4-channel digital I/O. |
|
Port |
2*RS232/422/485 serial interfaces or 4*digital input/output channels, 4*1000Mbps Ethernet ports, and 1*fiber optic port. |
|
Power Supply |
DC Power Supply: Redundant dual power input DC 9-70V or AC 7-50V, power consumption <5W Overload protection: Supported; Reverse polarity protection: Supported; Redundancy protection: Supported Connection terminals: 4-pin 5.08mm pitch pluggable terminals AC Built-in Power Supply: AC 85-265V or DC 110-300V wide range input, power consumption <5W Overload protection: Supported; Connection interface: Three-pin AC power socket |
|
Product Size |
Enclosure: IP40 protection rating, aluminum alloy material Dimensions: 110mm (length) x 87mm (width) x 40mm (height) Mounting method: DIN rail mounting, wall mounting |
● Fiber
Optical port: 1
Fiber: single fiber and dual fiber
Fiber interface: FC/SC/ST/LC (SFP)
Wavelength: 850nm/1310nm multimode; 1310nm/1550nm single mode
Transmission distance without relay: 0~80Km
Typical transmission power:
Single-mode 100 μW – 0.93 mW
● 10/100/1000M Ethernet interface
Protocol: Compliant with IEEE 802.3ab, IEEE 802.3z
Speed: 10/100 /1000Mbps adaptive full/half-duplex
MAC Address Table: Supports learning up to 4096 MAC addresses
Physical Interface: RJ45 connector, supports Auto-MDIX
● Serial Interface
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 interface:
RS-422: TxD+ TxD- RxD+ RxD- GND
RS-485 4 wires: TxD+ TxD- RxD+ RxD- GND
RS-485 2 wires:
A(corresponding to TX+)
B(corresponding to TX-) GND
RS-232: RXD TXD GND
● Dry Contact Interface
Output interface type:
Dry contact
1: Signal relay dry contact output;
2: Optical MOS relay output (maximum internal resistance 25Ω)
Pulse quantity:
Optical MOS relay output, 0-VCC (VCC is the power supply voltage of this machine)
Response time: Signal relay dry contact output: <1.2ms, optical MOS relay output <0.6ms
Switch signal: Signal relay dry contact output 30VDC/0.5A; optical MOS relay output: 245VDC/0.12A
Maximum switching frequency: 50HZ
Output surge protection: Signal relay dry contact output: None;
Optical MOS Rrelay output: TVS+solid discharge tube protection
● Environmental Index
Working temperature: -40℃—+85℃
Storage temperature: -40℃—+85℃
Working humidity: 0%—95% (non-condensing)
MTBF: >100,000 hours
Features
● The industrial Ethernet series is designed specifically for harsh and demanding industrial environments;
● The device provides 4 switched Gigabit Ethernet ports, 1 Gigabit fiber optic port, 2 optional RS232/422/485 serial interfaces or 4 digital inputs/outputs (1 serial port corresponds to 2 digital inputs/outputs);
● The fiber optic interface supports multimode dual-fiber, single-mode dual-fiber, and single-mode single-fiber transmission modes, with SC/LC connectors available;
● It features broadcast storm protection, traffic balancing, conflict isolation, error detection, and automatic reset after failure, making it suitable for high-bandwidth data applications such as video transmission;
● It supports the transmission of extra-long VLAN packets and can be used with switches that support the IEEE 802.1Q protocol, supporting packets up to 10K bytes;
● It provides 2 RS232/485/422 interfaces, with selectable interface types and three data interface options; RS232 supports 3-wire RS232. (TXD, RXD, GND)
● The RS232/485/422 channel can transmit asynchronous serial data with an adaptive baud rate from 0 to 115200 bps;
● Each channel has indicator lights for open and closed switch states; automatic detection of input switch states, the output switch state matches the input state;
● The switch state remains stable when the device is powered on or when the fiber optic cable is not connected, preventing erratic behavior;
● The switch input interface has a built-in filter to eliminate interference pulses, ensuring a stable output switch signal;
● The device uses an Ethernet switch chip + FPGA solution, with remote OAM management frame functionality, and can interconnect with corresponding 4U rack-mounted devices with SNMP network management; the device can be managed via SNMP software;
● Network management allows real-time viewing and management of the local and remote Ethernet interface status and settings; the device has a power-off detection function, which can detect whether the remote device is powered off or the fiber optic cable is disconnected when the optical signal is lost;
● Dual DC power supply (5.08mm terminal block):
Supports wide-range power supply of DC 9-70V or AC 7-50V, with automatic polarity detection, eliminating the need to distinguish between positive and negative terminals during installation;
Supports internal isolation and redundant dual power input; reverse connection protection;
● AC power supply (three-pin AC socket):
Supports AC 85-265V or DC 110-300V wide-range input, meeting industrial level 4 electromagnetic compatibility requirements;
● Supports internal isolation and redundant dual power input; power supply supports overload protection and reverse connection protection;
● Meets industrial level 4 electromagnetic compatibility requirements;
● Fanless high-efficiency heat dissipation, reducing repair time;
● Anodized aluminum alloy casing, IP40 protection rating, able to withstand harsh environments;
● DIN rail or wall mounting; wide temperature range: operating temperature -40℃~ +85℃;
● All models have passed 100% burn-in testing;
Application

Documentation and project verification — FCP-G4D2
Before ordering or wiring, confirm the exact model and configuration, interface pinout, optical or network compatibility, power input and installation conditions. Optional configurations are not interchangeable.
Browse FCTEL technical documents · Request the current model-specific datasheet and wiring diagram
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