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February 2006, Volume 12, Number 2 |
| TDM Circuit Turn-Up Made Easy
SONET/SDH networks have recently evolved to support the transport of Ethernet-based broadband services, making requirements more stringent than in the past. This article outlines various tests that should be performed during the installation and commissioning of network elements and the services/circuits they provide.
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Understanding CWDM
CWDM is a cost-effective solution for networks requiring fairly high bit rates, at minimal cost. This technology mainly suits metropolitan access environments that has growing bandwidth requirements, but does not have a substantial population to share the cost of the network.
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| High Five It—Five Steps to Follow for IPTV Testing
Many of the smaller independent and rural local exchange carriers have already launched IPTV services using ADSL or ADSL2+. And, of course, SBC, BellSouth, and other Tier 1 carriers have made announcements that they will be launching similar services in 2006 as well.
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