Cisco 15454-DS1-14= - 1.544Mbps Expansion Module Spezifikationen PDF herunterladen (Seite 42)

Cisco ONS 15454 Product Overview

Network Configuration

Cisco ONS 15454 Product Overview, R3.3

May 2002

Figure 25 shows a UPSR subtending from a BLSR. In this example, Node 3 is the

only node serving both the BLSR and UPSR. Optical cards in Slots 5 and 12 serve

the BLSR, and optical cards in Slots 6 and 13 serve the UPSR.

Figure 25 UPSR subtending from a BLSR

Linear Add/Drop Multiplexer Mode

In ADM configuration, intermediate nodes have direct access to eastbound or

westbound STS channels along a fiber route, and can connect any STS to any

other STS for transport along the network. ADM configurations eliminate the

need for costly “back-to-back” terminal configurations and can be enhanced with

1+1 protection for any or all transport spans in the system. Figure 26 shows an

ADM configuration.

Path

Protected

Nodes

BLSR

55302

1 2 ... 37 38 39 40 41 42 43 44 45 46 47 ... 55 56

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Cisco 15454-DS1-14= - 1.544Mbps Expansion Module Spezifikationen Seite 42