This product is an industrial-grade 4-port 1000base-T to 1000base-X media converter, it’s primarily used for long-distance (20/40/60/80/100 kilometers) transmission in fiber optic networks. It features a gigabit optical port and 4 gigabit Ethernet electrical ports, sharing a gigabit bandwidth. The bandwidth for each port can be configured through the Console port (the Ethernet interface acts as a switching port with support for VLAN partitioning), allowing for logical isolation. It provides comprehensive alarm functions, ensuring stable and reliable operation, low power consumption, high integration, and a compact form factor.
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Industrial 4-Port 1000Base-T to 1000Base-X Fiber Media Converter
This product is an industrial-grade 4-port 1000base-T to 1000base-X media converter, it's primarily used for long-distance (20/40/60/80/100 kilometers) transmission in fiber optic networks.
Overview
Features
● The device is designed for harsh industrial environments.
● The device provides 4 gigabit Ethernet electrical ports, sharing a gigabit bandwidth, 1 Console port, and a gigabit optical port.
● The ethernet ports (RJ45) support 10/100/1000M auto-negotiation, full/half-duplex modes, and MDI/MDI-X auto-detection.
● The optical interface supports multi-mode dual-fiber, single-mode dual-fiber, and single-mode single-fiber transmission modes, with optional SC/ST/FC/LC interfaces.
● Its features include broadcast storm protection, flow control, collision isolation, error detection, and automatic reset in case of system freeze, suitable for high-bandwidth data applications such as video transmission.
● It supports VLAN jumbo frame transmission and can be used with switches supporting IEEE 802.1Q protocol, supporting Ethernet frames up to 10240 bytes.
● The Built-in 1MBit high-speed cache in the device prevents video stuttering during rapid changes in surveillance scenes.
● The Console management function (optional) is used for setting bandwidth and priority for each Ethernet port, as well as isolation based on PORT and 802.1Q.
● It supports wide-range 9-55V AC and DC power inputs.
● It supports internal isolation and redundant dual power inputs.
● The power supply supports overload protection and reverse connection protection.
● It complies with industrial electromagnetic compatibility requirements.
● It has excellent lightning protection: withstands lightning strikes, high voltage induction, surge protection, etc.
● The device has an anodized aluminum alloy casing and an IP40 protection rating, capable of withstanding harsh environmental conditions.
● DIN rail or wall-mounted.
● Wide temperature range: -40℃ to +85℃ operating temperature.
● The device has undergone 100% burn-in testing, with a 5-year warranty.
Parameters
● Fiber
Fiber Type: Single-mode or Multi-mode
Fiber Interface: FC/SC/ST/LC (SFP)
Wavelength: 850nm/1310nm (Multi-mode); 1310nm/1550nm (Single-mode)
Non-Relay Transmission Distance: 20-120km
Typical Transmit Power:
Single-mode 1310/1550nm: ≥-9dBm
Multi-mode 850nm: -18dBm
Multi-mode 1310nm: -25dBm
Receive Sensitivity Range: -28dBm to -40dBm
● Ethernet Interface (10/100/1000M)
Protocol: IEEE 802.3z, IEEE 802.3ab compliant
Rate: 10/100/1000M auto-negotiation, full/half-duplex
MAC Address Table: Supports up to 4096 MAC addresses
Physical Interface: RJ45 port with Auto-MDIX (Auto-crossover/straight-through adaptation)
● Working Environment
Working temperature: -40°C ~ 85°C
Working Humidity: 5%~95 % (no condensation)
Storage temperature: -40°C ~ 100°C
Storage Humidity: 5%~95 % (no condensation)
Specifications
|
Model |
FCMG-G4 |
|
Functional Description |
4*GE over Fiber |
|
Port Description |
a 1000M Fiber port, 4*GE ports, a Console port (optional) |
|
Power Supply |
Dual redundant power inputs DC9-48V/AC9-48V, power consumption <10W Overload Protection, Support reverse polarity protection, Support redundancy protection, Support Access Terminal 4-pin plug-in terminal pitch of 5.08mm |
|
Dimension |
Product Size: 133*120*40mm (WXDXH) |
|
Weight |
0.685KG |
Application

Documentation and project verification — FCMG-G4
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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