Split Dial Shelves
Cisco AS5800 Universal Access Server Hardware Installation Guide1-38
The following conditions must be met before the dial shelf interconnect port adapter is enabled:
•The dial shelf interconne ct por t ad ap t er is co rr ec tly connected to the router shelf mi d pl an e and
receiving power.
•A valid CiscoIOS software image for the adapter has been down loaded successfully .
•The system recognizes the adapter.
If any of the above conditions are not met, or initi alization fails for other reasons, the enabled LED
remains off.
The link LED indicates an active connection to the dial shelf. Thi s LED lights when the dial shelf
interconnect port adapter is receiving a carrier signal from the dial shelf.

Software and Hardware Requirements

The dial shelf interconnect port adapter requires that the host Cisco 7206 router shelf is running
Cisco IOS Release11.3(2) AA or later.
Note IOS release 11.3 (5.1) AA or later is required to support two dial shelf interconnect port
adapters. Two dial shelf interconne ct port a dapter s are re quir ed to s upport dual dial shelf c ontr oll ers.
Port adapters are rated by data-carrying capacity as high, medium, or low band width. The host
Cisco7206 router shelf has certain data carrying capacity (or bandwidth) restrictions that affect the
number of high bandwidth port adapters you can install. The dial shelf interconnect port ada pter is
considered to be high bandwidth. Refer to the Cisco7200 Series Port Adapter Hardware
Configuration Guidelines document that shipped with your Cisco7206 router shelf for more
information on port adapter installation restrictions.
Split Dial Shelves
The split dial shelf configuration of the Cisco AS5800 dial platform increases bandwidth by using
two Cisco7206 router shelves to service a single Cisco 5814 dial shelf. The dual router shelves serve
as the interfaces between the split Cisco5814 dial shelf and the external network. This configura tion
provides the equivalent of two Cisco AS 5800s in a sin gle rack. Sp lit dial she lf conf iguratio n requires
two DSC cards and two Cisco 7206 router shelv es (both with dial shelf interconnect port adapters).
For more information on hardware and software configuration needed for a split dial s hel f
configuration, refer to the Cisco AS5800 Universal Access Server Split Dial Shelf Installation and
Configuration document or the Cisco AS5800 Univer sal A ccess Se rve r Oper ati ons, Admin istr ati on,
Maintenance, and Provisioning Guide, available soon.