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Hardware Reference
Maximum Current
Loads
Switching Core
Processing Core
Asynchronous Serial
Port
AT-9812T V2
C613-03059-00 REV F
AC models
Maximum continuous current draw: 2.2A at 220V, 4.3A at 110V
Maximum inrush current (cold start at 25º C/77º F): 60A at 220V, 30A at
110V
DC models
Maximum continuous current draw: 4.0A at -40V
Application-Specific Integrated Circuit (ASIC) switch chip
Non-blocking L2 and L3 IP Switching
40 k-entry forwarding address database (expandable to 232 k-entries with
LineCAM)
64MByte RAMBUS packet buffer
300 MHz RISC Processor
128 MBytes Synchronous DRAM, expandable to 256 MByte with DIMM
16MBytes of fixed flash
CompactFlash slot for hot swappable expansion of flash up to 512 MBytes
512 kBytes of Non-volatile SRAM (NVRAM)
Battery backed real time clock (RTC)
32/66 MHz PCI bus
Silicon ID chip storing serial number, board ID, and MAC address
Up to 115kbps
Universal Asynchronous Receiver Transmitter (UART)
Standard DB9 female RS-232 connector
Hardware-flow control
AT-9800 Series Switch Models
This section provides hardware descriptions for individual switch models.
Key features are:
12 10BASE-T/100BASE-TX/1000BASE-T ports (RJ-45 connectors)
4 1000BASE-X ports (GBIC slots)
Unrestricted 1000BASE-T GBIC use
CompactFlash slot
DIMM socket for expansion of Synchronous DRAM
CAM socket for expansion of the forwarding address database
Compatible with AT-PWR9000 RPS systems (AC models only)
Auto-negotiating Layer 3 Managed Switch
AC or DC PSU options
5
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