D-Link DEM-311GT Compatible 1.25Gbps SFP 1000BASE-SX 850nm 550m MMF Duplex LC DDM/DOM Optical Transceiver Module D-Link DEM-311GT compatible optical transceiver is a dual fiber 1000Mbps Small Form-factor Pluggable SFP module for use in 1000BASE Ethernet network. SFP SX provides 1Gb/s throughput up to 550 meters over OM2 multi-mode fiber (MMF) using 850nm wavelength. This transceiver is fully compliant with SFP Multi-Source Agreement (MSA), IEEE 802.3z 1000BASE-SX and SERDES standard. Its electrical interface is MSA compliant 20-pin edge type connector and the optical interface is Duplex LC connector. The full-duplex SFP transceiver features highly reliable VCSEL transmitter and PIN photo detector to offer high performance interconnection at 1.25Gbps data rate. Built-in Digital Diagnostic Monitoring/Digital Optical Monitoring (DDM/DOM) support is present for real-time performance monitoring via 2-wire (TWI/I2C) interface. Our modules are factory pre-programmed for compatibility, perform alternatively to genuine D-Link DEM-311GT transceivers. Feature Equivalent to D-Link DEM-311GT in function Hot pluggable SFP fiber optic transceiver module Data rate up to 1.25Gbps 850nm VCSEL transmitter PIN photo receiver Duplex LC optical connector Link distance up to OM2 550m Built-in digital diagnostic via 2-wire interface Single 3.3V power supply voltage Power consumption Ambient temperature range 0 to 70°C for commercial application Compliant with INF-8074i, SFF-8472 Compliant with IEEE 802.3z 1000BASE-SX Compliant with RoHS, REACH, CE, FCC standards Application Gigabit Ethernet Enterprise Campus Data Center Specification D-Link Compatible P/N DEM-311GT Form Factor SFP Max Data Rate 1.25Gbps Max Distance 550m (1804ft) @OM2 Wavelength 850nm Connector Duplex LC DDM/DOM Support Media MMF Transmitter Type VCSEL Receiver Type PIN Transmitter Power -9.5 to -3dBm Receiver Sensitivity < -17dBm Extinction Ratio 9dB Receiver Overload -3dBm Modulation Format NRZ Power Budget 7.5dB Power Consumption 0.6W Commercial Temperature Range 0 to 70°C (32 to 158°F)
