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Mercury Reference Manual
05-4446A01, Rev. E
Invisible place holder
Figure 1-4. Integrated Mobile/Fixed Application
1.3.2 Wireless LAN
The wireless LAN is a common application of the transceiver. It consists
of a central control station (Access Point) and one or more associated
Remote units, as shown in
Figure 1-5
. A LAN provides communications
between a central WAN/LAN and remote Ethernet segments. The oper-
ation of the radio system is transparent to the computer equipment con-
nected to the transceiver.
The Access Point is positioned at a location from which it communi-
cates with all Remote units in the system. Commonly, this is a high loca-
tion on top of a building or communications tower. Messages are
exchanged at the Ethernet level. This includes all types of IP traffic.
A Remote transceiver can only communicate over-the-air to an Access
Point (AP). Peer-to-peer communications between Remotes can only
take place indirectly via the AP. In the same fashion, an AP can only
communicate over-the-air to associated Remote units. Exception: Two
APs can communicate with each other “off-the-air” through their
Ethernet connectors using a common LAN/WAN.
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Figure 1-5. Typical Wireless LAN
MDS 4790
Master Radio
Licensed Serial/IP Integration
Mercury AP
MDS 4710
RTU/PLC
(Serial)
RS-232
RS-232
RS-232
MDS 4710
RTU/PLC
(Serial)
RTU/PLC
(Ethernet)
Long Range WLAN
Mobile Data
Mobile Data
MDS NETview MS®
Server
(Ethernet)
Computer
Router
WAN
Video
Surveillance
Mercury
remote
Control Center
Mercury
remote
Mercury
remote
Mercury
remote
Remote
Remote
Access Point
Remote
Remote
LAN
LAN
WAN/LAN
LAN
LAN
Summary of Contents for Mercury 3650
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