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2: Introduction
EDS User Guide 18
EDS4100 Overview
The EDS4100 is a compact device
server that allows you to network-
enable asynchronous RS-232 and
RS-422/485 serial devices. It can
deliver fully transparent RS-232/
422 point-to-point connections and
RS-485 multi-drop connections
without requiring modifications to
existing software or hardware in
your application.
Ports 1 through 4 support
RS-232 devices.
Ports 1 and 3 also support
RS-422/485.
Note: RS-485 circuits support 32 full-load devices or 128 quarter-load devices. Each
RS-485 port, however, counts as one device, leaving up to 31 full-load or 127 quarter-load
devices that can be connected to the RS-485 circuit.
The EDS4100 device server supports the Power-over-Ethernet (PoE) standard. With PoE, power
is supplied to the EDS over the Ethernet cable, by either an Ethernet switch or a midspan device.
Being able to draw power through the Ethernet cable eliminates power supply and cord clutter. It
also allows the EDS to be located in areas where power is not typically available.
Features
The key features of the EDS4100 include:
Dual-purpose Ethernet terminal server and device server design.
Four serial ports with hardware handshaking signals.
RS-232 and RS-422/485.
One RJ45 Ethernet port.
IEEE 802.3af standard for Power-over-Ethernet (PoE).
8 MB Flash memory.
32 MB Random Access Memory (RAM).
Lantronix Evolution OS™.
AES, SSH, or SSL secure data encryption.
Three configuration methods (Web, command line, and XML).
Print server functionality (LPR/LPD).
See Chapter 4: Installation of EDS4100 for installation instructions.
Figure 2-2 EDS4100 4 Port Device Server