System Architecture
Aitech’s A661 is a rugged 48-port (2 x 24 ports)
managed Gigabit Ethernet switch comprising two
Aitech C660 24-port Ethernet Switch boards housed in
a rugged enclosure. The C660 boards are based on
the Marvell Prestera 98DX4122 Multi-Layer Gigabit
Ethernet Switch packet processor, which performs
Layer 2 and Layer 3 routing and switching for the 24
Gigabit Ethernet ports.
An integrated high performance, low power ARM
compatible SheevaTM CPU core operating at 800MHz
functions as a Service Processor and interfaces to a
high speed DDRII-320MHz memory controller.
Board management devices include power controller,
elapsed time recorder, temperature sensors, and real
time clock.