Supplement Legacy Wireless Networks With Ip Services; High-Speed Mobile Data; Network Design Considerations; Extending Network Coverage With Repeaters - GE MDS iNET Series Reference Manual

Supplement Legacy Wireless Networks with IP Services

The iNET Dual Gateway model can support up to two serial devices and one Ethernet connection at the
same time. The serial interfaces (
and connection-oriented TCP.
In the UDP mode, the transceiver supports point-to-multipoint serial-port to serial-port connectivity. In the
TCP mode, it supports point-to-point Ethernet/IP to serial port connectivity.
For further details on the transceiver's Serial Gateway interface modes, see "Configuring the Serial Ports"
on Page 49.

1.3.7 High-Speed Mobile Data

The iNET radios support high-speed data communications in a mobile environment. Remote radios roam
between different access points, providing seamless transitions and continuous coverage. For additional
information on configuring a mobile network, refer to "Mobility Configuration Menu" on Page 47.

1.4 Network Design Considerations

1.4.1 Extending Network Coverage with Repeaters

What is a Repeater System?

A repeater works by re-transmitting data from outlying remote sites to the Access Point and vice-versa. It
introduces some additional end-to-end transmission delay but provides longer-range connectivity.
In some geographical areas, obstacles can make communications difficult. These obstacles are commonly
large buildings, hills, or dense foliage. These obstacles can often be overcome with a repeater station.
Option 1—Using Two Transceivers to Form a Repeater Station (back-to-back re-
peater)
Although the range between transceivers can be a nominal 40 km (25 miles) over favorable terrain, it is pos-
sible to extend the range considerably by connecting two units together at one site in a "back-to-back"
fashion to form a repeater, as shown in Figure 1-8. This arrangement should be used whenever the objective
is to utilize the maximum range between stations. In this case, using high-gain Yagi antennas at each loca-
tion will provide more reliable communications than their counterparts—omnidirectional antennas.
Access Point
8
and
COM1 COM2
REPEATER
Ethernet
Remote
Crossover Cable
LAN/WAN
Figure 1-8. Typical LAN with a Repeater Link
MDS iNET Series Reference Manual
) operate in two different modes: Connectionless UDP
Invisible place holder
Access
Point
Remote
Remote
LAN
Remote
LAN
LAN
05-2806A01, Rev. L