Date Code 20210715 SEL-2890 Instruction Manual
Section 1
Introduction & Specifications
Introduction
This section introduces the SEL-2890 Ethernet Transceiver and provides information
on the following topics:
➤ Features
➤ Applications
➤ Specifications
Features
The SEL-2890 is an Ethernet transceiver designed for use with SEL relays, SEL
communications processors, and other intelligent electronic devices (IEDs). The
SEL-2890 provides the following features:
➤ Port powered from an SEL relay
➤ 10BASE-T connection
➤ Support for TCP/IP (Transmission Control Protocol/Internet
Protocol) protocol suite
➢ FTP (File Transfer Protocol)
➢ Telnet
➢ Serial tunneling
➢ Serial routing
➢ Email
➢ HTTP
An Ethernet gateway is provided by an SEL-2890 to relays and other IEDs that are
based on EIA-232 serial communications. The SEL-2890 encapsulates serial data into
the Ethernet stack. More discussion on Ethernet and protocols is provided later in this
section. The benefit of an external Ethernet gateway is that network activity does not
degrade relay protection. You can also upgrade or replace the SEL-2890 without
disturbing settings or firmware in the host, relay, or communications processor.
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