-nm gap for adjacent band isola- tion (see Figure 6-8). Other standardization activities are underway, as shown in the following text.5 Chapter 6 Figure 6-8 Standards proposal. Proposed Grid for CWDM Transmission O Band E Band S+C+L Bands Wavelength (nm) The Commercial Interest Group is working to define a standard CWDM wavelength grid. CWDM Grids Proposed to the Telecommunications Industry Association (TIA) (1/01) and ITU (2/01) Coarse channel plan 1: O band 1,270, 1,290, 1,310, and 1,330 nm E band 1,370, 1,390, 1,410, and 1,430 nm S, C, and L bands 1,470, 1,490, 1,510, 1,530, 1,550, 1,570, 1,590, and 1,610 nm Coarse channel plan 2: O band 1,275.7, 1,300.2, 1,324.7, and 1,349.2 nm (802.3ae 10 GbE) E band 1,380, 1,400, 1,420, and 1,440 nm S, C, and L bands 1,470, 1,490, 1,510, 1,530, 1,550, 1,570, 1,590, and 1,610 nm Coarse Wavelength Division Multiplexing (CWDM) Technology CWDM Grid Standards Activities The Institute of Electrical and Electronics Engineers (IEEE) (P802.3ae) has proposals to support four CWDM channels in the O band (1,260 to 1,360 mm) January 2001 approvals TIA approval of proposed grids as a Lucent contribution to ITU U.S. Department of Commerce SGB approval as a Lucent contribution to ITU February 2001 presentation at ITU Q.16 systems Directed to present "white contribution" at next conference in October, and proposed as a new recommendation or as a change to a previous recommendation Q.17 components Identified new CWDM classification for WDM components for G.671 update As the demand for bandwidth is pushed to the edge of the network, the need for low-cost transport systems is imperative. CWDM technology fits these requirements, offering a scalable system architecture for metro and access networks. 6.3 Other Applications Three other applications are identified in this section for CWDM technology: LAN applications First-mile applications Poor man's metro networks For some LAN applications, CWDM is an attractive option for increasing the data throughput while utilizing the installed multimode fib