Contec FX-DS110-APE, User Manual, Page: 28 / 132

About FLEXLAN-DS110 Series
FX-DS110-APE
17
Roaming Function
The roaming function maintains the connection to the LAN by
automatically changing the access point to which the user unit is
connected when the unit moves. If access points are positioned so
as to cover the entire area where the wireless LAN is to be available,
the user unit can be used from anywhere.
When the operation mode of a FLEXLAN-DS110 user unit is
“Infrastructure”, it is designed to continuously monitor the AP
(access point) signal strength and change to the AP that provides
the most reliable communications.
In the following example, the signals from the APs do not cover the
entire range in which the mobile station U1 moves and therefore the
connection to the wired LAN is lost when U1 is in position (2).
AP1
ST1
OK
U1
①
U1
U1
OK
AP3
ST2
N G
②
③
10 / 1 00M
WTX / W RX
M G MT
POW ER W L I NK ON
O
FF
LI N K /ACT
FD X / COL
1 MODEM /TER MINA L
2 RSSI
3 CHANN EL1 4 CHANN EL2
5 INIT
10/10 0M
WTX/WR X
MGM T
POWE R WLIN K ON
OF
F
LINK/ ACT
FDX/C OL
1 MODEM /TER MINAL 2 RSSI
3
CHANN EL1 4 CHANN EL2
5 INIT
1 0/100 M
WTX /WRX
MGMT
POW ER W LINK O N
OFF
L INK/A CT
F DX/CO L
1 MO DEM/ T E RMIN AL 2 RS SI
3 CH ANNE L 1 4 CH ANNE L 2
5 IN IT
10/ 100M
W TX/W RX
MG MT
P OWER WLI NK ON
OFF
LIN K/ACT
FDX /COL
1 MODE M / TERM INAL 2 RSSI
3
CHAN N E L1 4 CHAN N E L2
5 INIT
Figure 3.1. Roaming Function 1