363-206-295
Shelf Descriptions and Configurations
Issue 1 December 1997 3-13
OC-12 Optical Extension Shelf 3
Figure 3-8 shows an OC-12 optical extension shelf. The eight low-speed
interfaces are equipped with four service and four protection OC-3 circuit packs.
This configuration supports four OC-3 optical extensions; however, local drop
configurations can be established by replacing OC-3 circuit packs with triple DS3,
triple STS1E, or IS-3 circuit packs. This configuration can also support up to four
OC-3 optical extensions through proper provisioning.
Figure 3-8. OC-12 Optical Extension Shelf
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Timing
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Function Units
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