Cisco ONS 15200 - Manual (Page 24)

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Cisco ONS 15200 Product Description
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Chapter 2 Product Configurations
ONS 15200 Network Configurations
Note The physical connection in Figure 2-4 consists of two fiber-optic cables.
Figure 2-4 Multichannel point-to-point configurations, single and dual connections
2.1.5 Ring Configuration with Hubbed and Meshed Traffic
In the ONS 15200 ring configuration with hubbed and meshed traffic, two ONS 15201 SCUs
communicate with each other. You can use either unit in a direct point-to-point configuration through a
control area network (CAN) bus connection as shown in
Figure 2-5 , or with a noninterfering ONS 15252
MCU. If you use an ONS 15252 MCU, the MCU must have an installed Bridge module (BM).
To manage a mesh configuration, use the Maintenance Manager (MM) software and associated hardware
or use a CAN bus extension cable to connect one of the ONS 15201 SCUs using the meshed channel to
the ONS 15252 MCU. An ONS 15201 SCU connected in this way will be on the same logical CAN bus
as the ONS 15252 MCU.
In the mesh configuration, you can configure SONET or SDH ADM ring protection on the client side of
the meshed channel. If you use client-layer 1+1 APS protection, you must replace each of the
ONS 15201 SCUs with a pair of ONS 15201 SCUs transmitting in opposite directions.
Figure 2-5
illustrates the ONS 15200 ring configuration with hubbed and meshed traffic.
Note The physical connection in Figure 2-5 consists of two fiber-optic fiber cables.
ONS 15252
ONS 15252 ONS 15252
ONS 15252
LEGEND
ONS - Optical network system
SINGLE PHYSICAL CONNECTION DUAL PHYSICAL CONNECTIONS
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