Different topologies are used in SONET network using various multiplexers. Popular topologies are 1. Point to point 2. Point to multipoint 3. Hub and spoke and 4. Ring. Each topologies are discussed briefly in this section.
Point to point. This configuration involves two terminal multiplexers linked by fiber with or without a regenerator in the link. In this configurtion, the SONET path and the service path (DS-1 or DS-3 links, end to end) are identical. Fig. 10.24 shows the point-to-point configuration.
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You can now recondition your old batteries at home and bring them back to 100 percent of their working condition. This guide will enable you to revive All NiCd batteries regardless of brand and battery volt. It will give you the required information on how to re-energize and revive your NiCd batteries through the RVD process, charging method and charging guidelines.