Specifications

26 AT-9900 Series Switch
C613-03084-00 REV A
Approved PSUs and FOM
The part numbers for the PSUs and the FOM that can be fitted in AT-9900
Series switches are:
■ AT-PWR01 (either AC or DC power supply unit)
■ AT-FAN01 (fan only module)
To order additional power supply units, contact your authorised authorised
distributor or reseller for more information, or visit
http:// www.alliedtelesyn.co.nz/support
.
Network Processor Accelerator Card
Warning Only authorised service personnel should install a network processor
accelerator card. Unauthorised opening of the switch’s lid may cause danger of
injury from electric shock, cause damage to the switch, and will invalidate the
product warranty.
What is an accelerator card?
The network processor accelerator card is an optional plug-in card for the
AT-9924T/4SP switch that provides accelerated IPv6 unicast and multicast
routing in hardware.
Approved network processor accelerator card
The part number for the accelerator card approved for use with the AT-9900
Series switch is:
■ AT-ACC01 network processor accelerator card
Note For full functionality of the network processor accelerator card 512MB
SDRAM must be installed in the switch.
How an accelerator card works
The AT-ACC01 network processor accelerator card provides acceleration of
routed IPv6 unicast and multicast packets. When the switch receives an IPv6
packet to route, the packet is sent to the accelerator card. The packet is then
processed by the accelerator card and sent out the correct port, with
appropriate alterations to the packet. Other IPv6 functions are passed on to
software, such as routing protocol control packets, encryption, authentication,
and Hop-by-Hop headers.
You do not need to configure the accelerator card for the card to function. The
accelerator card is enabled at installation.
You can disable the accelerator card and the switch then performs IPv6 routing
in software.