This device is an industrial-grade 1-port 10/100/1000M Ethernet to 1000base-X fiber converter, primarily used for long-distance (20/40/60/80/120 km) transmission in fiber networks. It features one Gigabit fiber port and one Gigabit Ethernet port. It is equipped with comprehensive alarm functions, ensuring stable and reliable operation, low power consumption, high integration, and a compact form factor.
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Mini Industrial Grade 10/100/1000M Fiber Media Converter
This device is an industrial-grade 1-port 10/100/1000M Ethernet to 1000base-X fiber converter, primarily used for long-distance (20/40/60/80/120 km) transmission in fiber networks.
Overview
Features
● The device is specifically designed for harsh industrial environments.
● It provides 1 Gigabit Ethernet copper port and 1 Gigabit fiber port, sharing a Gigabit bandwidth with a transmission speed of line-rate 1000M. The fiber port supports transmission distances of 20/40/60/80KM and 120KM.
● The ethernet port (RJ45) supports 10/100/1000M auto-negotiation, full/half-duplex mode, and MDI/MDI-X auto-detection.
● It supports the LFP function, allowing alarm transmission from the fiber port to the ethernet port, which can be enabled through a DIP switch.
● Configuration options are available for the 1000base-X and 100base-FX modes through the DIP switch.
● It can display the link status of the remote fiber port using LED indicators.
● It features functions such as broadcast storm protection, traffic balancing, collision isolation, error detection, and automatic reset during a system freeze, making it suitable for high-bandwidth data applications like video transmission.
● It supports the transmission of VLAN jumbo frames and can be used with switch products that support the IEEE 802.1Q protocol, with an MTU of ≥10240.
● It supports a wide range of DC and AC input and internal isolation.
● The power supply is protected against overload and reverse connection.
● It complies with industrial-grade electromagnetic compatibility requirements.
● It has strong lightning protection capabilities, with resistance against lightning strikes, high-voltage induction, and surges.
● The fanless design ensures efficient heat dissipation, reducing repair time.
● It has an IP40 enclosure protection rating, capable of withstanding harsh environmental conditions.
● It can be installed on a DIN rail or wall-mounted.
● Working temperature: -40 ℃ ~ + 85 ℃.
● It has passed 100% burn-in testing and comes with a 5-year warranty.
Parameters
● Fiber
Fiber Port: 1
Fiber Port Rate: 1.25G
Fiber Type: single/dual fiber
Fiber Interfaces: 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
● 10/100 / 1000M Ethernet Port
Protocol: Compliant with IEEE 802.3az, IEEE 802.1Q (VLAN)
Rate: 10/100M adaptive, full/half duplex auto-negotiation
MAC Address Table: Supports the learning of up to 4096 MAC addresses
Physical Interface: RJ45, supports Auto-MDIX
● DIP Switch Function
DIP-1: ON – Enable, OFF – Disable LFP function
DIP-2: ON – 100base-FX on fiber port, OFF – 1000base-X on fiber port
DIP-3: ON – Enable auto-negotiation on Fiber Port 1000base-X, OFF – Disable auto-negotiation
DIP-4: Reserved
● Working Environment
Operating temperature: -40℃—+85℃
Storage temperature: -40℃—+85℃
Working humidity: 0%—95% (No condensation)
MTBF: >100,000 hour
Specification
| Model |
FCM-G1m |
| Function Description | mini type 10/100/1000M industrial grade GE fiber media converter |
| Port Description | 1 Gigabit optical port, 1 Gigabit Ethernet port |
|
Power Supply |
Power input DC9-55V / AC7-48V, power consumption <3W Overload protection: support; reverse connection protection: support; Access terminal: 4-core 5.08mm pitch plug-in terminal |
|
Dimension |
Dimensions: 60mm (length) x 50mm (width) x 35.0mm (height) 35mm rail type |
|
Weight |
0.25kg/set |
Application

Documentation and project verification — FCM-G1m
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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