Global Sun Technology Inc AP-DS11 Benutzerhandbuch

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The GL2411AP-0A (11 Mbps WLAN Access Point) is a long-range, high performance LAN product,

which provides Access Point services to a 2,4 GHz RF network and bridges to an Ethernet backbone. The

design of this product is based on AT76C510 (bridge-on-a-chip) module, a highly integrated ASIC designed

to combine legacy LANs with wireless LANs. AT76C510 performs all the necessary inter-networking and

bridging functions. It receives data from both networks, stores them locally for further processing, installs and

maintains connections and transmits the packets to the proper destination. Furthermore, AT76C510 interfaces

three more modules, the Ethernet PHY, the wireless PHY and the RAM modules, for allowing compact

system implementation and flexibility for supporting almost all the possible physical interfaces.

–  Glueless connection to Intersil PRISMI, PRISMII Direct Sequence Spread Spectrum (DSSS) radio chip

set. Able to communicate also with other DSSS radios

–  Supports 11 Mbps rates with automatic fallback to 5.5, 2 and 1 Mbps

–  WEP encryption/decryption is accomplished on the fly

–  Ethernet MAC supports MII interface and 10/100Mbit speeds

–  Hardware modules for Packet Filtering and statistics gathering

–  Glueless SRAM, Flash interface for data buffering and program storage, supporting up to 16 MB of

memory

–  Integrated 2 x 6K x 32 bit internal SRAM modules for fast 32-bit program execution and temporary

storage of data

–  Supports 3V supply

–  128-pin PQFP, TQFP

–  JTAG Boundary Scan (IEEE 1149.1) test access port for board-level production test

The firmware functionality of the bridge supports:

1. Distributed Coordination Function (DCF )

CSMA/CA

Backoff procedure