Fs.com SFP1G-EX-31-I, 1000BASE-EX SFP 1310nm 40km SMF Transceiver Module

Long-haul fibre links often suffer from signal loss and costly downtime, especially when you need to stretch beyond the usual 10 km limit. The Fs.com SFP1G-EX-31-I, 1000BASE-EX SFP 1310nm 40km SMF Transceiver Module gives you a reliable, Cisco-compatible solution that extends Ethernet reach up to 40 km over single-mode fibre, keeping your network fast and stable without the need for extra repeaters.

Fs.com SFP1G-EX-31-I, 1000BASE-EX SFP 1310nm 40km SMF Transceiver Module - the answer to distance-related network bottlenecks

If your campus, data centre or metro network must span dozens of kilometres, the signal attenuation and latency of standard SFPs become a real obstacle. This can lead to packet loss, slower applications and frustrated users. The Fs.com SFP1G-EX-31-I, 1000BASE-EX SFP 1310nm 40km SMF Transceiver Module solves the problem by delivering 1.25 Gbps Ethernet over up to 40 km of SMF, meeting Cisco GLC-EX-SMD specifications while remaining cost-effective. Its robust design, wide temperature range and built-in diagnostics ensure you get consistent performance even in harsh industrial environments.

Key Features of Fs.com SFP1G-EX-31-I

• Vendor Name: FS.com - trusted supplier of network optics.
• Cisco Compatible: GLC-EX-SMD - fits directly into Cisco switches and routers.
• Form Factor: SFP - standard hot-swappable slot for easy upgrades.
• Max. Data Rate: 1.25 Gbps - supports Gigabit Ethernet with headroom.
• Wavelength: 1310 nm - optimal for long-distance single-mode transmission.
• Max. Cable Distance: 40 km - far exceeds typical 10 km limits.
• Connector: Duplex LC - common, low-loss fibre interface.
• Optical Components: DFB 1310 nm - provides stable wavelength and low drift.
• Media: SMF - designed for single-mode fibre infrastructure.
• DOM Support: Yes - enables diagnostic monitoring of temperature, voltage and optical power.
• TX Power: -5 ~ 0 dBm - sufficient output for long runs while staying within safety limits.
• Receiver Sensitivity: < -24 dBm - detects weak signals reliably.
• Industrial Temperature Range: -40 to 85 °C (-40 to 185 °F) - operates in extreme environments.
• Protocols: SFF-8472 MSA Compliant, IEEE 802.3ah-2004 - ensures broad compatibility and standards-based performance.

Specifications