The Juniper SFP-1GE-LX is a Gigabit Ethernet optical transceiver (SFP module) that supports the 1000BASE-LX standard. It operates at a 1310 nm wavelength over single-mode fiber (SMF) with a reach of up to 10 km, using a duplex LC connector.

 Specifications of SFP-1GE-LX

• Form Factor: Small Form-Factor Pluggable (SFP)
• Standard: 1000BASE-LX (IEEE 802.3z compliant)
• Speed: 1.25 Gbps signaling rate (Gigabit Ethernet)
• Connector Type: Duplex LC (PC/UPC polish)
• Wavelength: 1310 nm (range: 1270–1355 nm)
• Cable Type: Single-mode fiber (SMF), 9/125 µm core/cladding
• Maximum Reach: Up to 10 km on SMF
• Transmitter Output Power: –9.5 dBm to –3 dBm
• Receiver Sensitivity: –21 dBm minimum
• Digital Optical Monitoring (DOM): Supported (monitors Tx/Rx power, bias current, voltage, temperature)
• Operating Temperature: –40 °C to +85 °C (extended range)
• Part Number: 740-031850 (older PN: 740-011614)
• Compliance: INF-8074i MSA, NEBS compliant
•