User's Manual

TWL-C11 TGC PROPRIETARY Rev. 1.0
User’s Manual 12/18/2000
Tellus Group Corporation
4F, No.15, Industry E. Rd. IX, SBIP, Hsinchu, Taiwan, R.O.C.
Tel: [phone] Fax: [phone]
Infrastructure is applicable to enterprise scale for wireless access to central database, or wireless application for
mobile workers.
Two Access Points could be used as a point-to-point link between two LANs. LAN-Interconnection is applicable to
a wireless backbone between buildings.
File Server
Desktop PC
Desktop PC
... ..
TWL-A11
... ..
TWL-A11
Desktop PC with TWL-U11Desktop PC with TWL-U11
ESS
BSS1
BSS2
Notebook with TWL-C11
Notebook with TWL-C11
Notebook with TWL-C11
Notebook with TWL-C11
3.1.2.1 Roaming
An Infrastructure configuration also supports roaming capability for mobile workers. More than one BSS can be
configured as an Extended Service Set (ESS). On account of a continuous connection to the network, users
within this ESS could roam freely. All TWL-C11 PCs and TWL-A11 within one ESS must be configured with the
same ESS ID and at the same radio channel.
Before setting up an ESS for roaming, it would be helpful to improve the performance by choosing a feasible radio
channel and right places for Access Points.
3.2 Operating
1. Insert the PC Card into the PC slot until it seats snugly. Arrows on the front of the PC Card indicate the
insertion direction.