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AP-2000


The AP-2000 is not all that new but for the price we are getting them at the moment they represent great value.

So, whats inside?

open up the case ( 4 screws and you have the solder side of the board with 2 pcmcia sockets.
AP-2000 solder side

Remove the 4 3mm hex bolts and flip the board out and you see 4 IC's, (l->r)looks like an ethernet controller, the northbridge ( BGA ) and the processor. At the other end of the board is what looks like a PCI bus glue logic chip ( for interfacing the 2 x pcmcia sockets). 2 X SDRAM chips and 2 X Flash towards the top of the board.
Sorry blurry photo - will retake soon.

AP-2000 component side

125 x245 cm circuit board.

Processor: Intel 21281 strongarm SA - 110 @ 233 Mhz
            I have the developers manual for this but it's a bit 
            large to post ( 6+ MB zipped) 

Northbridge: Intel 21285
SRAM:
FLASH:
Ethernet:
pcmcia control: Texas Inst PCI1225 - don't know if this is pcmcia or cardbus

That's about it.

Software

I think it runs windriver VXWorks RTOS.

There is a number of Linux ports for the Arm processor, time to get the toolchain installed...

Serial port

Its a 7 pin Din connector similar to the serial port on older MAC's


How to use it?

The AP-2000 was used to establsih campus wide type networks and as such was probably deployed as a simple AP. Because it can control 2 wireless cards it is especially suitable for setting up MW nodes, one card configured as an AP and the other as a link to the backbone.

The software does not give you complete control of the device, for instance it does not look like you can configure one of the cards in client mode.

WDS

WDS "Wireless Distribution System" is a protocol that is found on a lot of AP's nowdays. It essentially allows you to run an AP as bot access point and link. This is not such a good thing with only one wireless interface due to multiple pandling of data packets but with two interfaces one can be dedicated to the link function. Up to 6 WDS "peers" can be configured in this unit.

WDS is configured by entering the MAC address of the peer nodes at each end. The AP's then form part of the same ESS and would share a ESSID ??


Version 2 (old) modified Mon, 26 Jul 2021 12:49:29 +0000 by dna0xff
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