•Speed - DSDN is commercially deploying 100 Mbps, testing 1 Gbps and
working on 10 Gbps. Most proposed fiber deployments currently provide only 10
Mbps to the end user.
•Scalability - Both FTTH and DSDN can scale and have robust
architectures that are full duplex and switched. Ethernet is an extremely robust
system for data transfer, whether through FTTH or DSDN.
•Redundancy - DSDN intelligently re-routes network traffic around any
accidental cable cuts or path disruptions resulting in uninterrupted service to
the consumer. Most FTTH systems are home-run strands from either the NOC or a
major hub to the home. It takes either intelligent components in the field
(DSDN), or redundant home run fiber from a second location (very expensive) to
achieve redundancy.
•Ease of Implementation and Maintenance - DSDN is easier to implement
and maintain and does not require additional customer premise equipment. FTTH
implementations are more difficult and require special handling for each fiber
drop to the home and the installation and maintenance of active optical
switching equipment at the customer's premise. Cable cuts on a DSDN network are
easy and inexpensive to locate and repair. A cut to fiber requires expensive
equipment to locate the cut and extensive labor and equipment to repair.
Source/Reference
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by redxii 
last modified: 2002-07-28 20:43:56 |
