GBIC classification is based on its working wavelength, data transmitting rate, working power, and working distance. Generally GBIC fiber optic end the interface is SC type, the laser unit in GBIC module can be 850nm VCSEL, 1310nm FP, 1310nm DFB, and 1550nm DFB. Ingellen provides GBIC transceiver modules, including WS-G5483,WS-G5484,WS-G5486,WS-G5487 and CWDM GBIC. These modules are with 850nm, 1310nm, 1550nm wavelength, SFP 1.25Gb/s, 1.0625Gbps data rate, working distance from 300 meters to 80 kilo meters. But how much do you know about CWDM GBIC module?The CWDM GBIC module, works at 1.25Gbps full duplex mode, help companies and service providers to set up scalable and easy to deploy Gigabit Ethernet and Fiber Channel service in the networks. The CWDM GBIC modules are plug and play and very simple to use, This transceiver is compliant with Gigabit Ethernet and 1000BASE-T standards as specified in IEEE802.3-2002 and IEEE 802.3ab for CWDM SFP 1.25Gb/s over unshielded twisted-pair category-5 cable. It operates on standard Category 5 unshielded twisted pair copper cabling of up to 100m length. This transceiver is also compliant with RoHS, SFP MSA, FCC 47 SFR Part 15, Class B and SONET/SDH recommendations for OC-48 specifications. It is widely used in serial telecom and datacom applications.