Side Interfaces Network-Side Interfaces Figure 5-41 Opportunity space 10 GbE for price-optimized edge devices. OPAD 300/00 10/100E OPAD 100/00 8 VoT1 DSL nxT1 DS3 SONET Opt MM Opt SM Chapter 5 Figure 5-42 Opportunity space 10 GbE for price-optimized edge devices- OPAD 300/OA another case. 10/100E B=ATM OPAD 100/OA 8 VoT1 DSL SONET Opt MM Opt SM Figure 5-43 Opportunity space 10 GbE for price-optimized edge devices OPAD 400/OE another case. 10/100E B=WAN E OPAD 200/OE 8 VoT1 DSL SONET Opt MM Opt SM port density, power budget, maximum capacity throughput, and handoffs. For example, in nearly all instances using a DWDM product to support a typical commercial building, it is an overkill, way too expensive, and leaves a lot of unused capacity in the systems. Some of the possible technologies that could lower edge-device/ transmission system costs include, but are not limited to, the following: CWDM In the component industry, a significant amount of effort is focused on reducing channel spacing to enable DWDM systems to Dense Wavelength Division Multiplexing (DWDM) Systems Figure 5-44 Opportunity space 10 GbE for price-optimized edge devices- OPAD 300/IPO another case. 10/100E OPAD 100/IPO 8 VoT1 DSL SONET Opt MM Opt SM Figure 5-45 Opportunity space 10 GbE for price-optimized edge devices- OPAD 300/IPA another case. 10/100E B=ATM OPAD 100/IPA 8 VoT1 DSL SONET Opt MM Opt SM support more wavelengths. Today, typical wavelength spacings using thin-film filters are at 200 GHz, moving to 100 GHz and even 50 or 25 GHz. The precision associated with this channel spacing results in challenging yields and higher component costs. However, the metro market, especially metro access, will operate at much lower channel density, allowing as much as several nanometers (nm) between channels (that is, a 4- or 8-channel system could operate in the neighborhood of 1,310, 1,480, 1,540, and 1,560 nm). Meanwhile, the Chapter 5 Figure 5-46 Opportunity space 10 GbE for price-optimized edge devices- OPAD 400/IPE another case. 10/100E OPAD 200/IPE