CS-1000C-SFP — compact 10/100/1000Base-T media converter with a 100/1000Base-X SFP slot

OPTOKON CS-1000C-SFP — compact Ethernet media converter for converting an electrical signal 10/100/1000Base-T into a fiber-optic signal 100/1000Base-X. The device features one RJ45 port and a universal SFP slot, allowing users to select an optical transceiver to suit the fiber type, wavelength, required reach and network topology.

Unlike media converters with fixed optics, CS-1000C-SFP does not limit the user to a single optical interface type. A suitable MM SFP can be installed for a multimode link, or an SM SFP for a single-mode link — the required reach is determined by the specifications of the selected transceiver.

The model supports Auto MDI/MDIX on the copper port, optical interface switching, 100M/1000M, Jumbo Frame up to 9K, modes Forward and Store-and-Forward, as well as the Link Fault Pass Through function for effective monitoring of end-to-end Ethernet connection status.

With dimensions of just 69 × 50 × 25 mm and a weight of 100 g CS-1000C-SFP can be easily installed in small telecommunications enclosures, video surveillance systems, network cabinets, industrial panels, BMS systems and other space-constrained locations.

Key benefits of CS-1000C-SFP

• 1 × 10/100/1000Base-T RJ45 for connecting standard Ethernet equipment.
• 1 × SFP slot for 100/1000Base-X optical modules.
• Flexible choice of optics — Single Mode or Multimode depending on the installed SFP.
• Flexible choice of reach — determined by the specifications of the SFP transceiver.
• 100M/1000M switching for use with compatible Fast Ethernet or Gigabit Ethernet SFPs.
• Jumbo Frame up to 9K for transmitting larger Ethernet frames.
• Forward Mode / Store-and-Forward Mode.
• Auto MDI/MDIX on the copper Ethernet port.
• Link Fault Pass Through for monitoring link status.
• LLCF and LLR for propagating link loss information.
• LED indication of power, TP and Fiber interface status.
• 5–12 V DC power supply.
• MTBF over 50 000 hours.
• Compact enclosure — 69 × 50 × 25 mm.
• Weight only 100 g.
• Optional wide-temperature version for more demanding operating conditions.

Versatile SFP slot

The main advantage of the CS-1000C-SFP is the use of a replaceable SFP transceiver instead of a built-in optical transmitter. This allows a single media converter model to be used for different types of fiber-optic links.

As a result, upgrading or changing the optical link parameters often requires replacing only the SFP module, without replacing the media converter itself.

How the CS-1000C-SFP works

The media converter converts signals between copper Ethernet and the optical interface. The RJ45 port connects to a switch, router, IP camera, controller, server or other Ethernet device. An optical module matching the link parameters is installed in the SFP slot.

Typical connection diagram:

Ethernet device → RJ45 → CS-1000C-SFP → SFP → optical fiber → SFP / media converter / switch → Ethernet network

A second CS-1000C-SFP does not have to be installed at the other end of the optical link. If the active network equipment has a compatible SFP port, the fiber-optic link can be connected directly to it.

Copper Ethernet interface

SFP optical interface

CS-1000C-SFP is supplied with an SFP slot without an optical transceiver installed. The user can select an SFP to suit the specific project.

Typical options:

• 1000Base-SX — for multimode fiber;
• 1000Base-LX — for single-mode fiber;
• 100M SFP — when using the corresponding 100M mode;
• Long Distance SFP — for extended reach;
• other compatible SFPs matching the optical network parameters.

100M / 1000M switching

The media converter supports adaptive switching of the optical interface between 100M and 1000M. The mode is selected using a switch.

This is an important advantage for networks that need to use not only standard Gigabit Ethernet SFPs but also compatible 100 Mbit/s optical modules.

Jumbo Frame 9K

CS-1000C-SFP supports Jumbo Frames up to 9K. Larger Ethernet frames reduce the relative protocol overhead when transmitting large volumes of data.

Jumbo Frame support can be useful for:

• server networks;
• data storage systems;
• backups;
• large file transfers;
• video streaming;
• industrial Ethernet systems.

Forward Mode and Store-and-Forward Mode

Selectable modes allow the media converter to be adapted to the requirements of a specific network.

Link Fault Pass Through

Link Fault Pass Through (LFP) allows link loss information to be passed between the copper and fiber segments. The function is configured using a DIP switch.

The LFP mechanism includes:

• LLCF — Link Loss Carry Forward;
• LLR — Link Loss Return.

This allows network equipment and monitoring systems to respond more quickly to a cable break, SFP failure, or loss of connectivity on either segment.

Benefits of LFP

• rapid detection of fiber link faults;
• end-to-end Ethernet link monitoring;
• simplified remote monitoring;
• reduced troubleshooting time;
• more accurate Link Down detection by active equipment.

LED Indicators

5–12 V DC Power Supply

CS-1000C-SFP supports a wide input voltage range of 5–12 V DC, simplifying device integration into various telecommunications and automation systems.

Compact enclosure

The dimensions of the CS-1000C-SFP are just 69 × 50 × 25 mm, and its weight is 100 g. This allows the media converter to be installed in locations where full-size network equipment is impractical or cannot be used.

• small telecommunications boxes;
• video surveillance cabinets;
• industrial electrical cabinets;
• network distribution cabinets;
• information kiosks;
• automation systems;
• local network nodes.

Standard and extended-temperature versions

CS-1000C-SFP technical specifications

Advantages of the SFP version over a media converter with fixed optics

Video surveillance and security systems

CS-1000C-SFP can be used to transmit Ethernet in IP video surveillance systems where the distance between a camera, switch or video recorder exceeds the reach of copper Ethernet.

• IP cameras;
• NVR and video surveillance servers;
• perimeter security systems;
• parking facilities;
• access control checkpoints;
• remote security sites;
• city video surveillance systems.

Access control and building automation

• access controllers;
• IP intercoms;
• elevator systems;
• BMS;
• HVAC;
• building systems monitoring;
• information displays.

Enterprise and campus networks

With a suitable SFP, the media converter can be used to connect remote Ethernet segments between floors, building wings or separate buildings.

• office centers;
• universities and schools;
• hospitals and laboratories;
• dormitories;
• warehouses;
• manufacturing facilities;
• remote offices.

Industrial Ethernet networks

Ethernet transmission over optical fiber provides galvanic isolation and immunity to electromagnetic interference, which are essential in industrial environments.

• production lines;
• PLCs and Ethernet controllers;
• SCADA;
• industrial PCs;
• terminals and kiosks;
• data acquisition systems;
• remote network nodes.

Energy and utility infrastructure

• electrical substations;
• pumping stations;
• water treatment facilities;
• water supply systems;
• SCADA nodes;
• remote telemetry systems.

Transport infrastructure

• airports;
• railway stations;
• tunnels;
• metro systems;
• transport terminals;
• traffic controllers;
• information displays;
• monitoring systems.

Government and specialized facilities

The compact form factor, availability of a wide-temperature version, and flexible SFP interface also allow the CS-1000C-SFP to be used in networks at government and specialized facilities.

• control rooms;
• checkpoints;
• remote posts;
• monitoring systems;
• local telecommunications nodes.

Smart City

• urban video surveillance;
• roadside cabinets;
• Public Wi-Fi backhaul;
• Smart Parking;
• information systems;
• IoT gateways;
• urban monitoring systems.

When to choose the CS-1000C-SFP

The CS-1000C-SFP is particularly suitable when:

• a compact media converter with an SFP slot is required;
• you need to select the optical transceiver type yourself;
• a single project uses optical links of different types and lengths;
• Single Mode and Multimode support is required;
• an optical link speed of 100 Mbit/s or 1 Gbit/s is required;
• Jumbo Frame support up to 9K is required;
• Link Fault Pass Through functionality is required;
• Auto MDI/MDIX and easy connectivity are required;
• minimal dimensions are important;
• a 5 to 12 V DC power supply is required;
• an optional wide-temperature version is required.

FAQ — frequently asked questions

Is an SFP module included?

No. The CS-1000C-SFP has an SFP slot, and the optical transceiver is selected and installed separately according to the network requirements.

Can a single-mode SFP be used?

Yes. A suitable single-mode SFP must be installed for a Single Mode link.

Can a multimode SFP be used?

Yes. A suitable MM SFP is installed for a Multimode optical link.

What is the maximum reach?

The media converter itself does not have a fixed optical reach. It is determined by the specifications of the installed SFP module and the optical link budget.

Is 100 Mbit/s supported over fiber?

Yes. The CS-1000C-SFP supports switching the optical interface between 100M and 1000M modes when a compatible SFP is used.

Are Jumbo Frames supported?

Yes. The maximum Jumbo Frame size is 9K.

What is LFP?

Link Fault Pass Through allows link-loss information to be passed between the optical and copper interfaces, simplifying monitoring and troubleshooting.

What are LLCF and LLR?

These are link-loss detection mechanisms used as part of LFP to pass fault information between link segments.

Is Auto MDI/MDIX supported?

Yes. The RJ45 port automatically detects the type of copper connection.

What power supply is required?

The media converter operates on 5–12 V DC with a current of up to 1 A.

What is the operating temperature range?

The standard version operates at temperatures of 0...+50 °C. An extended-temperature version is optionally available for −40...+85 °C.

Does the CS-1000C-SFP support PoE?

No. The model is designed to transmit Ethernet data and does not supply PoE power through the RJ45 port.

Configuration selection

OPTOKON CS-1000C-SFP — a versatile, compact media converter for connecting copper 10/100/1000Base-T Ethernet to a fiber-optic network via a replaceable SFP module. The model's main advantage — the flexibility to select the fiber type, wavelength, optical budget and reach to suit a specific project.

Support for 100M/1000M, Jumbo Frame 9K, Forward and Store-and-Forward modes, Auto MDI/MDIX, Link Fault Pass Through, a wide 5–12 V DC power supply range and an optional extended-temperature version makes the CS-1000C-SFP a convenient solution for enterprise, industrial, transportation, municipal and specialized Ethernet networks.

Contact us:
info@optokon.es