Specifications
Table Of Contents
- AR400 Series Router Hardware Reference
- Contents
- Introduction
- Models Covered By This Reference
- Where To Find More Information
- AR410 and AR410S Routers
- AR440S and AR441S ADSL Routers
- AR450S Router
- Rack and Wall Mounting
- Online Documentation
- AT-TFTP Server
- Using Windows HyperTerminal
- Router Start-Up
- Flash Memory
- RS-232 Terminal Ports (ASYN)
- Cables and Loopback Plugs
- Test Facility
- Expansion Options
- Restricted Procedures
- Contacting Us
38 AR400 Series Router
C613-03086-00 REV A
Expansion Options
Some of the AR400 Series routers allow the following expansion options:
■ Port Interface Cards (PIC) - for routers with PIC bays, you can install a PIC
when you require it.
■ Mini Accelerator Cards (MACs) - for the AR410, you can order a MAC
when you purchase the device, or get one fitted later by authorised service
personnel.
Port Interface Cards (PICs)
PICs (Port Interface Cards) can be installed in all AR400 Series routers except
the AR450S. The sections describing each router model (earlier in this
Reference) list the PICs that can be installed in each model. Installation
information for PICs is in the Port Interface Card Quick Install Guide. Detailed
PIC hardware information is in the Port Interface Card Hardware Reference.
The PIC Quick Install Guides and Hardware References are included on the
Documentation and Tools CD-ROM bundled with all AR400 Series routers.
They can also be downloaded from the Support Site at
www.alliedtelesyn.co.nz/support/ar400/.
Mini Accelerator Cards (MACs)
On AR410 routers, Mini Accelerator Cards (MACs) provide additional
processing features or performance, but do not add extra physical interfaces to
the router. A MAC can be installed in the dedicated MAC slot (labelled
Coprocessor Interface) inside the AR410. An AT-AR011V2 MAC card is factory
fitted in the AR410S router.
MACs should be installed by authorised service personnel only. Unauthorised
opening of the router lid may cause danger of injury from electric shock, damage
to the router, and invalidation of the product warranty.
Three MACs are available:
■ AT-AR010 EMAC, Encryption MAC.
■ AT-AR011 V2 ECMAC, Encryption/Compression MAC.
■ AT-AR012 CMAC, Compression MAC.
How MACs work
MACs provide routers with high performance hardware-based encryption
and/or compression services. MACs have a DMA slave processor, which
operates independently of the base system. This processor is responsible for
the transfer of data between the base system and the MAC, and the control of
local high speed encryption and compression data processing devices.
This architecture allows data encoding to be performed off-line without
involving the base router processor in the process, thereby maximising MAC
performance while at the same time minimising impact on the router.