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2.1
Understanding EKI-1321/1322
The EKI-1321/1322 is network-based, serial device server for connecting RS-232/
422/485 devices, such as CNCs, PLCs, scales, and scanners, directly to a TCP/IP
network. Once connected through EKI-1321/1322, serial device will be able to send
and receive data through cellular ISP network like any other network device. It
extends traditional COM ports of a PC with access over a TCP/IP network. Through
networking, you can control monitor remote serial devices either over a LAN or over
the WAN. Since the EKI-1321/1322 is connected through a TCP/IP network, you
might need to know some basic facts about networking in order to get the server
hooked up correctly.
2.1.1
Product Description
The EKI-1321/1322 is designed to network-enable any RS-232/422/485 serial
devices and provides industry-grade hardware and easy-to-use software to make
connecting serial devices to an Ethernet network a surprisingly simple process.
These units immediately upgrade your existing serial devices for integration into the
Internet world. The EKI-1321/1322 features a lot of powerful functions such as: high
speed data transfer, access-control, auto-detection of all EKI series products, remote
connection from different network domain, remote firmware download, and more.
After the simple installation steps to attach your network and serial device to the
appropriate connectors on the serial device servers and driver installation, you will be
able to communicate with the serial devices via its own application software and with
the EKI serial device server. COM port redirector, TCP server mode, TCP client
mode, UDP server mode, UDP client mode, RFC2217, SMS Tunnel and IP Gateway
mode are all different schemes to make a serial connection across using one or more
Serial device server.
EKI-1321/1322 has GSM/GPRS transceiver in addition to its serial and Ethernet port.
Each serial port is connected to the serial communication port of a device. The GSM/
GPRS transceiver connects to another device through ISP cellular network.
EKI-1321/1322 User Manual
Figure 2.1 Cellular Network Connection
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