The access point network, Led indicators for wireless cardbus card, Power indicator: (orange led) – PROLiNK WG3000 Wireless LAN Card 802.11g User Manual
Page 6: Led i, Ndicators, Ireless

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You can also use one computer as an Internet Server to connect to a wired
global network and share files and information with other computers via a
wireless LAN.
The Access Point Network
The network installation allows you to share files, printers, and Internet
access much more conveniently. With Wireless LAN Cards, you can
connect wireless LAN to a wired global network via an Access Point.
LED Indicators For Wireless CardBus Card
Power Indicator: (Orange LED)
This LED will illuminate when the driver is well-installed.