DIGITUS DN-81003 mini GBIC SFP Module 1.25 Gbps 20km LC Simplex Single-Mode WDM Cisco Compatible

The DIGITUS DN-81003 mini GBIC SFP Module is a bidirectional transceiver designed to facilitate reliable Gigabit Ethernet connections over single-mode fiber optic infrastructure. By utilizing Wavelength Division Multiplexing technology, this module allows data transmission and reception over a single fiber strand, effectively optimizing cabling resources. Operating at a maximum data rate of 1.25 Gbps and supporting communication distances of up to 20 kilometers, it serves as an efficient solution for extending network reach. The hot-pluggable design ensures that installation and replacement can be performed without powering down network equipment.

Advantages

This SFP transceiver leverages WDM technology to reduce infrastructure costs by requiring only one fiber strand for bidirectional communication. Its broad brand compatibility ensures seamless integration into existing network environments utilizing hardware from manufacturers such as Cisco, D-Link, and TP-Link. The hot-pluggable and MSA-compliant nature of the device allows for straightforward deployment without complex software configurations. Additionally, the robust construction supports reliable operation across standard commercial temperature ranges.

Suitable for

• Extending Gigabit Ethernet connections between switches and routers over distances up to 20 km
• Optimizing existing single-mode fiber optic cabling using single-strand WDM transmission
• Upgrading enterprise network infrastructure with Cisco-compatible transceiver modules
• Deploying flexible fiber links in data centers and telecommunication rooms

When it may not be suitable

This module is not compatible with multi-mode fiber optic cables and cannot achieve optimal performance if installed on incorrect fiber types. It is also unsuitable for communication distances exceeding 20 kilometers without intermediate signal regeneration or amplification.

Key specifications

• Mini GBIC SFP form factor
• 1.25 Gbps maximum data transfer rate
• WDM technology utilizing 1310 nm TX and 1550 nm RX wavelengths
• LC Simplex fiber optic connector
• Supports distances up to 20 km over 9/125 µm single-mode cables
• MSA compliant and hot-pluggable
• 3.3 V input voltage
• Operating temperature range from 0 °C to 70 °C

How to use

To install the transceiver, gently insert the module into an available SFP slot on a compatible network device such as a switch or media converter until the locking mechanism engages securely. Connect the single-mode fiber optic cable equipped with an LC simplex connector to the optical port of the module. Ensure that the opposite end of the fiber link utilizes the matching compatible counterpart module. The plug-and-play functionality allows the network device to recognize the transceiver automatically without requiring manual driver or software configuration.

What to consider before purchase

• Verify that your network hardware supports MSA-compliant SFP modules and matches the required brand compatibility
• Confirm that your existing fiber optic infrastructure consists of 9/125 µm single-mode cables
• Check that the communication distance between network nodes does not exceed the 20 km limit
• Ensure the corresponding opposite-side module is selected correctly for the bidirectional link

For stable and reliable bidirectional fiber optic communication, always pair this module with its designated counterpart on the opposite end of the network link and maintain clean optical connectors.