CS-G01F02M — Gigabit Ethernet media converter 1×1000Base-X SFP + 2×10/100/1000Base-T RJ45
OPTOKON CS-G01F02M — a compact, high-performance Gigabit Ethernet media converter with Ethernet switch functionality, designed to convert an optical signal 1000Base-X to copper Ethernet 10/100/1000Base-T. The device is equipped with 1× SFP 1000 Mbit/s and 2× RJ45 10/100/1000 Mbit/s, allowing two Ethernet devices to be connected to the optical link simultaneously.
Unlike a conventional media converter with a single RJ45 port, CS-G01F02M combines the functions of a Gigabit Ethernet media converter and a compact 3-port Ethernet switch. A single optical link can be used to connect two local Ethernet devices without the need for an additional switch.
A replaceable SFP module allows the fiber type, wavelength and required reach to be selected to suit the specific project. Depending on the installed SFP, the optical link can provide a reach of 20, 40, 60, 80 or up to 100 km over single-mode fiber. For multimode fiber, transmission is supported over distances of up to 550 m.
CS-G01F02M has a switching capacity of 16 Gbit/s, a packet forwarding rate of 14,388 Mpps, a MAC address table of 2K, a buffer of 1 MB and supports Jumbo Frames up to 9K. The fanless design ensures silent operation and improves device reliability.
Key benefits of CS-G01F02M
- 1×1000Base-X SFP — a versatile optical Gigabit Ethernet interface.
- 2×10/100/1000Base-T RJ45 — connectivity for two Ethernet devices.
- Media converter + Ethernet switch in one compact enclosure.
- Up to 100 km over single-mode optical fiber, depending on the installed SFP.
- Up to 550 m over multimode optical fiber.
- Replaceable SFP — the ability to select the optics type to suit the specific application.
- Switching capacity 16 Gbit/s.
- Packet Forwarding Rate 14,388 Mpps.
- MAC Address Table 2K.
- Buffer 1 MB.
- Jumbo Frame up to 9K.
- Forwarding latency approximately 5 µs.
- Auto MDI/MDIX on Ethernet ports.
- Link Fault Alarm — network connection status monitoring.
- Built-in surge protection for ports and power supply.
- Fanless design — natural passive cooling.
- Low power consumption — no more than 6 W.
- MTBF 100 000 hours.
- Desktop or wall mounting.
- CE / FCC / RoHS.
1 optical port + 2 Ethernet ports
The key feature of CS-G01F02M — the provision of 2 RJ45 ports. A standard media converter typically uses a 1×Fiber + 1×RJ45 configuration. CS-G01F02M allows two local Ethernet devices to connect to a single optical link.
| Port | Quantity | Speed |
|---|---|---|
| SFP | 1 | 1000 Mbit/s |
| RJ45 | 2 | 10/100/1000 Mbit/s |
This configuration is particularly convenient for remote nodes where it is necessary to connect, for example, an IP camera and a controller, two cameras, an access point and a terminal, or two other Ethernet devices, using only one optical uplink.
Typical connection diagram
Optical network → SFP → CS-G01F02M → 2×RJ45 → Ethernet devices
Or when using the device to transmit data in the opposite direction:
2× Ethernet devices → RJ45 → CS-G01F02M → SFP → optical fiber → remote network node
Thanks to the built-in switching function, both RJ45 ports can operate through a single Gigabit Ethernet optical uplink.
Universal SFP interface
Use of a standard SFP slot makes CS-G01F02M significantly more versatile than media converters with a fixed optical transceiver.
For a specific project, a suitable SFP module can be selected based on:
- optical fiber type;
- required reach;
- wavelength;
- optical connector type;
- whether a dual-fiber or single-fiber Bi-Di/WDM link is required.
Replacing the SFP allows the optical link parameters to be changed without replacing the media converter itself.
Optical transmission distance up to 100 km
The optical link distance is determined by the specifications of the installed SFP module and the optical link parameters.
| Optical link type | Distance |
|---|---|
| Multimode | Up to 550 m |
| Single Mode | 20 km |
| Single Mode | 40 km |
| Single Mode | 60 km |
| Single Mode | 80 km |
| Single Mode | Up to 100 km |
This allows a single media converter model to be used for both local optical connections and long-distance backbone links.
Copper Ethernet ports
CS-G01F02M is equipped with 2 RJ45 10/100/1000Base-T ports. Standard Cat.5e or Cat.6 Ethernet cables up to 100 m long can be used for connection.
| Parameter | Value |
|---|---|
| Number of RJ45 ports | 2 |
| Speed | 10 / 100 / 1000 Mbit/s |
| Cable | Cat.5e / Cat.6 |
| Maximum length | 100 m |
| MDI/MDIX | Auto-detection |
Switching capacity of 16 Gbit/s
CS-G01F02M has a switching capacity of 16 Gbit/s and a packet forwarding rate of up to 14,388 million packets per second.
This ensures efficient transmission of Gigabit Ethernet traffic between two copper ports and the optical SFP interface.
2K MAC address table
The built-in MAC address table supports up to 2048 entries. The device automatically learns the MAC addresses of connected Ethernet equipment and forwards traffic to the appropriate port.
1 MB buffer
CS-G01F02M is equipped with a packet buffer of 1 MB. Buffering helps stabilize data transmission during brief load spikes and variations in traffic intensity between ports.
Low forwarding latency
Forwarding latency is approximately 5 µs, allowing the device to be used in networks where fast Ethernet traffic transmission is important.
Jumbo Frame support up to 9K
CS-G01F02M supports Jumbo Frames up to 9K in size. Support for larger Ethernet frames can be useful in networks with intensive transmission of large volumes of data.
Typical applications:
- IP video surveillance;
- video stream transmission;
- server networks;
- data storage systems;
- backup;
- industrial Ethernet networks;
- large file transfers.
Network connection status monitoring
CS-G01F02M supports network link status monitoring and signaling in the event of connection loss. This simplifies fault detection at remote network nodes and helps reduce troubleshooting time.
This functionality is particularly important for:
- remote IP cameras;
- road systems;
- railway infrastructure;
- remote process facilities;
- Smart City systems;
- engineering and industrial networks.
Surge protection
To enhance reliability, CS-G01F02M provides surge protection for its network ports and power supply line. This is particularly relevant when the device is used in remote cabinets, outdoor video surveillance systems, and transportation infrastructure.
Fanless design
CS-G01F02M uses passive natural cooling and has no fan.
The absence of moving parts ensures:
- silent operation;
- less dust accumulation inside the enclosure;
- fewer mechanical components that could fail;
- minimal maintenance;
- high reliability during long-term operation.
5–12 V DC power supply
The media converter operates from a DC power source of 5–12 V DC. The device's maximum power consumption is no more than 6 W.
| Parameter | Value |
|---|---|
| Input voltage | 5–12 V DC |
| Power interface | DC |
| Maximum power consumption | ≤ 6 W |
LED indicators
LED indicators on the enclosure allow quick checks of the power status, optical interface and Ethernet connections.
| Indicator | Function |
|---|---|
| Optical Port Rate | Optical port speed indication |
| Power | Power indication |
| Link/Act | Connection status and data transmission activity |
CS-G01F02M technical specifications
| Specification | Value |
|---|---|
| Model | CS-G01F02M |
| Device type | Gigabit Ethernet media converter / compact Ethernet switch |
| Optical port | 1×1000Base-X SFP |
| Copper ports | 2×10/100/1000Base-T RJ45 |
| SFP speed | 1000 Mbit/s |
| RJ45 Speed | 10 / 100 / 1000 Mbit/s |
| Maximum Twisted-Pair Cable Length | 100 m |
| Ethernet Cable Type | Cat.5e / Cat.6 |
| Multimode | Up to 550 m |
| Single Mode | 20 / 40 / 60 / 80 / 100 km |
| Switching Capacity | 16 Gbit/s |
| Packet Forwarding Rate | 14,388 Mpps |
| MAC Address Table | 2K |
| Buffer | 1 MB |
| Forwarding Latency | 5 µs |
| MDI/MDIX | Supported |
| Jumbo Frame | Up to 9K |
| Link Fault Alarm | Supported |
| Cooling | Fanless, natural cooling |
| Input Voltage | 5–12 V DC |
| Maximum Power Consumption | ≤ 6 W |
| Operating Temperature | −10...+55 °C |
| Storage Temperature | −40...+75 °C |
| Relative Humidity | 5–95%, non-condensing |
| Dimensions | 93 × 71 × 27 mm |
| Weight | 0,2 kg |
| Mounting | Desktop / wall-mounted |
| MTBF | 100 000 hours |
| Certification | CE / FCC / RoHS |
CS-G01F02M and a conventional 1×RJ45 media converter
| Feature | CS-G01F02M | Conventional media converter |
|---|---|---|
| Optical port | 1× SFP | 1× Fiber |
| RJ45 | 2 ports | Usually 1 port |
| Built-in switching | Yes | Usually no |
| Maximum optical reach | Up to 100 km | Model-dependent |
| Jumbo Frame | Up to 9K | Model-dependent |
| MAC table | 2K | Not always applicable |
| Buffer | 1 MB | Model-dependent |
Video surveillance systems
CS-G01F02M is particularly well suited to IP video surveillance systems. Two RJ45 ports allow two Ethernet devices to be connected at a single remote location and their traffic to be transmitted over a single optical link.
- IP cameras;
- PTZ cameras;
- perimeter video surveillance;
- remote security posts;
- parking lots;
- industrial sites;
- citywide video surveillance systems.
Smart City
The compact design, optical uplink and two Gigabit Ethernet ports make CS-G01F02M suitable for use in urban infrastructure.
- roadside cabinets;
- intersections;
- video surveillance systems;
- Public Wi-Fi;
- monitoring systems;
- information systems;
- remote urban network nodes.
Intelligent Transportation Systems
- highways;
- tunnels;
- toll collection points;
- roadside controllers;
- information displays;
- traffic control systems;
- remote transportation nodes.
Railway Infrastructure
- railway stations;
- platforms;
- trackside cabinets;
- depots;
- parking facilities;
- video surveillance systems;
- information systems.
Energy and Utility Infrastructure
- electrical substations;
- pumping stations;
- water supply;
- solar power plants;
- wind power plants;
- remote telemetry systems;
- monitoring systems.
Industrial Facilities
- production lines;
- warehouse complexes;
- remote terminals;
- kiosks;
- automation systems;
- controllers;
- network nodes.
Enterprise and Campus Networks
- inter-building connectivity;
- office complexes;
- university campuses;
- parking facilities;
- sports complexes;
- large public facilities;
- remote Ethernet nodes.
Temporary networks
The compact enclosure and easy connectivity also make CS-G01F02M suitable for temporary network installations.
- festivals;
- exhibitions;
- construction sites;
- temporary video surveillance systems;
- mobile network nodes;
- events and presentation venues.
When to choose CS-G01F02M
CS-G01F02M is recommended if:
- you need to connect 2 Ethernet devices over a single fiber link;
- you need a compact media converter with Ethernet switch functionality;
- you need a versatile SFP slot;
- you need a fiber reach of up to 100 km;
- you need Jumbo Frame support up to 9K;
- high switching performance is important;
- you need Auto MDI/MDIX support;
- you need network link loss notification;
- a fanless design is important;
- you need low power consumption;
- the device is used for CCTV, Smart City, transportation, industrial applications or an enterprise network.
FAQ — frequently asked questions
How many Ethernet ports does CS-G01F02M have?
The device has 2 RJ45 10/100/1000Base-T ports and 1 1000Base-X optical SFP port.
Can two devices be connected over a single fiber link?
Yes. This is one of the main advantages of CS-G01F02M. The two RJ45 ports share a single optical Gigabit Ethernet uplink.
What speed does the SFP port support?
The SFP port operates at 1000 Mbit/s.
Does the SFP port support 100 Mbit/s?
No. In the CS-G01F02M specification, the optical port is listed as 1000M SFP / 1000Base-X.
What is the maximum optical link distance?
With a suitable single-mode SFP module, the distance can be up to 100 km. For multimode fiber, the specified distance is up to 550 m.
Is an SFP module included?
The SFP is a replaceable optical transceiver selected according to the required fiber type, wavelength and optical link distance.
Is Bi-Di/WDM supported?
A single-fiber link can be established using suitable Gigabit Ethernet Bi-Di SFP modules, paired by wavelength and required distance.
What is the maximum Jumbo Frame size?
CS-G01F02M supports Jumbo Frames up to 9K.
What is the switching capacity?
The device's switching capacity is 16 Gbit/s, and the packet forwarding rate is — 14,388 Mpps.
What is the buffer size?
CS-G01F02M has a buffer size of 1 MB.
Does the device have a fan?
No. CS-G01F02M has a fanless design and uses natural passive cooling.
What is the operating temperature?
The operating temperature range is −10...+55 °C.
What power supply is required?
The device operates on 5–12 V DC and consumes no more than 6 W.
Can CS-G01F02M be wall-mounted?
Yes. It supports desktop or wall mounting.
Is this a managed switch?
No. CS-G01F02M is designed for automatic Ethernet traffic switching and conversion of copper Ethernet to an optical link, but the manufacturer does not specify Web, SNMP or other managed Ethernet switch features.
Configuration selection
OPTOKON CS-G01F02M — a practical solution for applications where two copper Ethernet devices need to be connected over a single optical Gigabit Ethernet link. The combination of 1×1000Base-X SFP and 2×10/100/1000Base-T RJ45 eliminates the need for a separate media converter and an additional Ethernet switch at the remote site.
The replaceable SFP provides flexible optical configuration options with a reach of up to 100 km, while a switching capacity of 16 Gbit/s, Jumbo Frame 9K, a 1 MB buffer, Auto MDI/MDIX, passive cooling and an MTBF of 100 000 hours make the CS-G01F02M a convenient solution for CCTV, Smart City, transportation, industrial and enterprise infrastructure.
Contact us:
info@optokon.es



