GE MDS Mercury 900, Справочное руководство

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05-4446A01, Rev. E Mercury Reference Manual 11
1.3.3 Point-to-Point LAN Extension
A point-to-point configuration ( Figure 1-6 ) is a simple arrangement
consisting of an Access Point and a Remote unit. This provides a com-
munications link for transferring data between two locations.
Invisible place holder
Figure 1-6. Typical Point-to-Point Link
1.3.4 Serial Radio Network Connectivity
The transceiver provides a path for serial devices to migrate to
IP/Ethernet systems. Many radio networks in operation today still rely
on serial networks at data rates of 9600 bps or less. These networks can
use the transceiver as a means to continue using the serial service, while
allowing the infrastructure to migrate to an IP format.
A Remote transceiver with its serial port connected to a GE MDS
serial-based radio, such as the MDS x790/x710, MDS TransNET and
others, provides a path for bringing the data from the older radio into the
IP/Ethernet environment of a Mercury-based system.
Invisible place holder
Figure 1-7. Backhaul Network
1.3.5 Multiple Protocols and/or Services
Prior to the introduction of Ethernet/IP-based radios, two radios were
often used to service two different types of devices (typically connected
LAN/WAN
Access Point
Remote
LAN
MDS 4790
Master
MDS 9790
Master
MDS 9810
Master
Serial Conn.
Serial Conn.
Serial Conn.
MDS 4710 Remote
NMS Control
Point
SCADA Host
Modbus/IP
HUB
Access Point
MDS 4710 Remote
MDS 9710 Remote
MDS 9710 Remote
MDS 9810 Remote
MDS 9810 Remote
Remote Serial
Remote Serial
Remote Serial
NETWORK
ROUTER
ROUTER
Serial
Device
Serial
Device
Serial
Device
Serial
Device
Serial
Device
Serial
Device