Specifications

Hardware Reference 9
Software Release 3.0.2
C613-03092-00 REV C
AT-9900s Series Switch
The AT-9900s Series switch is a gigabit link aggregation switch that operates
with other switches that have 10Mb/100Mb/1Gb/10Gb Ethernet ports. This
switch can act as a gigabit server backbone or pass aggregated traffic over its
gigabit ports. The switch can also aggregate gigabit desktop user connections
and pass traffic to other 10 Gigabit Ethernet equipment.
Environmental
conditions
■ Operating temperature range: 0º C to 40º C (32ºF to 104ºF)
■ Storage temperature range: -25ºC to 70º C (-13ºF to 158ºF)
■ Relative humidity range for operation: 5% to 80% non-condensing
■ Relative humidity range for storage: 5% to 95% non-condensing
■ Operational altitude: 3,050 metres maximum (10,000 feet)
Regulatory
standards
■ EMC: EN55022 class A, FCC class A, and VCCI class A.
■ EN61000-3 levels 2 (Harmonics), and 3 (Flicker)—AC models only
■ Immunity: EN55024
■ Safety: UL60950-1, CAN/CSA-C22.2 NO. 60950-1-03, EN60950-1,
AS/NZS60950, and EN60825-1
■ Certification: UL, cUL, and TUV
Switching core ■ Application-Specific Integrated Circuit (ASIC) switch chip
■ High performance IPv4 switching
■ 128MByte packet buffer memory
Processing core ■ 667MHz RISC Processor
■ 32MBytes of non-expandable fixed flash
■ 512MBytes Double Data Rate (DDR) Synchronous DRAM, expandable to
1gigabyte
■ 512kBytes of NVSRAM
AT-9924Ts model The unmatched flexibility of the AT-9924Ts switch tailors solutions to a wide
range of networking needs. It is currently the sole model in the AT-9900s Series.
Key features are:
■ Autonegotiating, multi-layer gigabit switch
■ 24 10/100/1000BASE-TX ports (RJ-45 connectors)
■ Out-of-band 10/100/1000BASE-T Ethernet management port
■ Two high-speed 20Gbps bays to support combinations of expansion
modules
■ Supports dual, hot-swappable, load sharing PSUs (AT-PWR01)—a second
PSU is optional
■ Optional 10GbE expansion module
■ Optional 12-port SFP expansion module
■ Optional 12-port RJ-45 expansion module
AT-9924Ts front panel