Overview: Cisco XR 12000 Series Router Shared
Port Adapters
This chapter describes the shared port adapters (SPAs) that are supported on the Cisco XR 12000 Series
Router and contains the following sections:
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SPA Summary, page 2-2
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1-Port OC-192/STM-64 POS SPA Overview, page 2-37
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C H A P T E R
Cisco XR 12000 Series Router SIP and SPA Hardware Installation Guide
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