Symbol-technologies LA-5030 Bedienungsanleitung PDF herunterladen (Seite 19)

About the PC Card & PCI Adapter

2-3

To comply with FCC and Industry Canada exposure requirements, this hand-held

device is approved for operation near a user's hand when there is 20 cm or more

between the antenna and the user's body.

2.2 Operating Modes

The Symbol Wireless Networker 802.11 a/g Configuration Utility installs with the Windows driver.

Use the Configuration Utility to select the operational mode, ESSID, encryption algorithm,

authentication scheme and power consumption mode used with the LA-5030 PC Card or LA-5033

PCI adapter.

The LA-5033 PCI adapter and LA-5030 PC Card support the following operational modes:

•Use Infrastructure to interoperate with an access point (AP). The adapter can roam freely

between AP cells in the network or transmit and receive across subnets. Mobile Units (MUs)

appear as network nodes to other devices in the network. Infrastructure is the adapter

default mode.

• Select Ad Hoc to form peer-to-peer LA-5030 networks without APs. Use Ad Hoc to create

networks within established network coverage areas or networks free of the physical

constraints of access point provided radio coverage areas. The MU starting the Ad Hoc

network (the first LA5030 adapter transmitting a beacon) determines the channel and data

rate used for the other LA-5030 adapters within the network using the same ESSID.

The Symbol Ad Hoc mode is an Independent Basic Service Set (IBSS) mode requiring no

backbone infrastructure. The lack of an access point results in MUs alternating the duty of

sending beacons. There are no relay functions in an Ad Hoc (IBSS) network, not every MU is

capable of communicating with other MUs due to the range limitations. Consequently, all

stations need to be within range of each other.

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Symbol-technologies LA-5030 Bedienungsanleitung Seite 19