Cisco Cisco Packet Data Gateway (PDG) Documentation Roadmaps
ASR 5000 Hardware Platform Overview
▀ ASR 5000 Line Cards
▄ Cisco ASR 5000 Series Product Overview
OL-22938-01
ASR 5000 Line Cards
The following rear-loaded cards are currently supported by the system.
Switch Processor I/O Card
The Switch Processor I/O (SPIO) card provides connectivity for local and remote management, CO alarming, and BITS
timing input. SPIOs are installed in chassis slots 24 and 25, behind SMCs. During normal operation, the SPIO in slot 24
works with the active SMC in slot 8. The SPIO in slot 25 serves as a redundant component. In the event that the SMC in
slot 8 fails, the redundant SMC in slot 9 becomes active and works with the SPIO in slot 24. If the SPIO in slot 24
should fail, the redundant SPIO in slot 25 takes over.
timing input. SPIOs are installed in chassis slots 24 and 25, behind SMCs. During normal operation, the SPIO in slot 24
works with the active SMC in slot 8. The SPIO in slot 25 serves as a redundant component. In the event that the SMC in
slot 8 fails, the redundant SMC in slot 9 becomes active and works with the SPIO in slot 24. If the SPIO in slot 24
should fail, the redundant SPIO in slot 25 takes over.
The following shows the panel of the SPIO card, its interfaces, and other major components.