1.2 Why Ethernet Solutions?
“Embedded Internet” and “Embedded Ethernet” are hot topics today.
Nowadays Ethernet protocol has become the de-facto standard for local area
networks. Via the Internet, connectivity is occurring everywhere, from home
appliances, to vending machines, to testing equipment, to UPS...etc. Many
embedded designers now face the dilemma of adding an Ethernet interface to
their products (either for use with local networks or for connecting to the
Internet). Solutions to this problem include both hardware and software.
Connecting via Ethernet requires a communication protocol called TCP/IP. The
installed base of Ethernet networks is huge and growing. Most office building,
factories, and new homes have an installed Ethernet network. With Ethernet,
the network is always available. Using Ethernet for network in industrial areas
is appealing because the required cabling is already installed.
The 7188E series are a series of embedded controllers designed to meet
the most common requirements of Internet/Ethernet applications. They can be
used to replace the PC or PLC in harsh environments.
The 7188E series provides one on-board 10BASE-T port that is directly
driven by a NE2000 compatible Ethernet controller. The 10BASE-T port is
equipped with a RJ-45 connector. The 10BASE-T interface supports a
maximum of 100 meters cable (22 AWG to 26 AWG) length between devices
and hubs. To link the 7188E and other devices through a 10BASE-T hub,
simply use two straight-through cables: one cable connects to 7188E; the other
cable connects the hub to the other device.
7188E Series Hardware User’s Manual, 2004, v2.2, 7MH-016-22 ----- 4