8227 Access Point

195-082  IBM WIRELESS LAN ENTRY PRODUCT FAMILY
Wireless LAN Communications  HTML111PDF
E2SB5001   Wireless LAN Entry 8227 Access Point User's Guide
IBM Wireless LAN Kit   Using the Wireless Lan under OS/2 
EZ331800   LAN Concepts and Products: Routers and Gateways
A3A4IM01  OS/2 LAN Requester User's Quick Reference
A3A4IM02 OS/2 LAN Requester User's Guide
A3A61M02 OS/2 LAN Server Planning, Installation, and Configuration
EZ30BW00 Inside OS/2 LAN Server 4.0

Wireless LAN Entry
 Access Point               8227       INT                  25H4211
 Access Point               8227       PAT                  13H5895
   (Extended Range)
Wireless LAN Adapter PCMCIA            8090    PN 80G0900
Wireless LAN Entry PCMCIA Adapter   4285    PN 92G7787



8227 Front



8227 Sysboard
CN1 AUI port
CN2 RJ45 port
J1,2 Known but to God and IBM
J3 PCMCIA slots
J4,5 LED Panel Header
J6 Unk two pin header
OSC1 33.00000 MHz Osc
OSC2 14.31818 MHz Osc
U1,2 Winbond W2465S-70LL
U7 NS DP83905AVQB AT/Lantic
U8 486SX-33
U11 BIOS IBM AP Q21E
U13,16 MT4C16257DJ-6
U17 UMC UM82C491F 9513-ATA
U18 Cirrus CL-PD6710-VC-B
U21,22 DR256Kx16_ZIP

J6 is open on mine, the jumper is on one pin only.
BIOS Sticker on the board says PhoenixBIOS A486SX, G89295. The BIOS eprom is 940809.
J1 and J2 are both 20 pin headers with pin 4 missing.
U21 and U22 are solder pads only.

spread spectrum frequency-hopping radio used by the Wireless LAN Entry operates in the 2.4GHz unlicensed frequency band.
Each access point can support up to 16 active users.



Wireless LAN Entry 8227 card

 

The 8227 card is functionally identical to the IBM Wireless LAN Entry Adapter that the clients use, except that it has additional flash memory on it. The 8227 card comes preloaded with operational software loaded on the flash memory. When the 8227 is switched on, it verifies that the card is in Local Program Load (LPL) mode and loads the code from the card.  The 8227 can load its operational software and configuration information in one of two ways - local program load or remote program load. 

Integral Antenna
   The integral antenna is built in to the transceiver which in turn is part of the PCMCIA Wireless adapter and is the only one which can be used in a
workstation. It transmits over a 360° area with equal signal strength in all
directions. In many environments this antenna will be used in both the
workstations and the 8227s. An 8227, so equipped, should be mounted high up. Install it against a ceiling, for example, as close to the center of the required operating area as possible. The workstations in the cell can be arranged anywhere within the area of coverage. This antenna should only be used in the horizontal plane.

Wireless LAN Entry 8227 XR card

The 8227 extended range model supports an external gain antenna. 

Patch Antenna
   The patch antenna is an alternative to the integral antenna for the 8227. It
connects to the PCMCIA Wireless adapter by cable, so it may be installed some distance from the 8227 itself. The range of transmission is asymmetrical, forming two lobes of 180° each. One lobe takes the shape of a pointed dome and has a range somewhat greater than the integral antenna. The other lobe is a flattened dome and covers a much smaller area. This antenna is typically mounted high up against a wall and oriented such that the largest lobe points in the direction of the largest workstation concentration.



Local Program Load (LPL) -- This is the default loading mode. The operational software and configuration information for the 8227 are contained on the 8227 card you received as part of the kit. In LPL mode, the 8227 loads its operational software and configuration information directly from the 8227 card installed in its adapter slot. Chapter 3 describes the procedures you will need to follow to perform an LPL installation of the 8227 card. 

Remote Program Load (RPL) -- If you change the loading mode to RPL, the operational software and configuration information are automatically obtained by the 8227 from a file server on the local Ethernet segment (see Figure 2-1 in topic 2.0). The software and configuration files on the
8227 card are ignored. Chapter 4 describes the procedures that you will need to follow to perform an RPL installation of the 8227 card. 


Wireless LAN Entry 8227 card, WLE/XR
   The 8227 card is functionally identical to the IBM Wireless LAN Entry Adapter that the clients use, except that it has additional flash memory on it. The 8227 card comes preloaded with operational software loaded on the flash memory. When the 8227 is switched on, it verifies that the card is in Local Program Load (LPL) mode and loads the code from the card. 

LED Meanings
Name
Symbol
State
Meaning 
Software State
On
8227 card software installed and configured. 
Off 
8227 card software not installed or configured. 
Cell Leader
On
Adapter is installed in an 8227, which is always the cell leader.
Data 
Transmission
On or Blink
8227 card transmitting data.
Off
8227 card receiving data or idle.

8227 Card Removal
  1. Make sure the 8227 is off. 
  2. If the external patch antenna is being used, disconnect the antenna cable from the adapter cable.
 3.Push the adapter ejector button. 
 4.Pull the adapter out of the adapter slot. 
 5.Put the plastic adapter-slot cover over the adapter slot. 

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