Transceivers are of various categories such as GBIC, SPF, SPF+, XFP and XAUL and these are used in the fiber optic systems. The Cisco transceiver is an extremely popular product. Multiservice networks can be easily modeled and deployed with the help of Cisco's CWDM GBIC or Coarse Wavelength Division Multiplexing Gigabit Interface Converter. The Cisco CWDM GBIC transceiver is used in campuses, data centers and metropolitan area access networks for Gigabit Ethernet and Fiber Channels and is a commendable and cost-effective option.
The Cisco CWDM GBIC is basically made up of two parts. One part has a set of eight different pluggable transceivers and the other part consists of a set of passive multiplexer. The transceivers and passive multiplexers are compliant with the ITU-T G 694 2 standard defined CWDM grid. The CWDM GBIC model has the capacity to transmit up to eight channels of Gigabit Ethernet or Fiber Channels over single mode fiber strands. It can be fitted into a standard GBIC port without any issues, and supports the IEEE 802 3z standard. It neither requires any power nor any configuration process. The multichannel architecture helps to build links for easy availability. The two path link configurations in a ring architecture provides protection from fiber cuts.
The Cisco SPF (Small Form Factor Pluggable) transceiver provides a good choice of protocols, reaches and speed options as well as supported transmission media due to the hot pluggable interfaces. This is a hot-swappable input/output device that can be plugged into an SPF port or into a Cisco router or switch slot. It links the port with the fiber optic network. The SPF module can support both Gigabit Ethernet and Fiber Channel. In an environment surrounded by stiff competition businesses need transceivers that can enforce lean management policies and eliminate those procedures that lead to wastage. Transceivers that are safe for use and cause no hazards to the environment are vital tools for a business.