Schweitzer Engineering Laboratories SEL-2890 User manual

SEL-2890
Ethernet Transceiver
Instruction Manual
*PM2890-01*
20210715

© 2002–2021 by Schweitzer Engineering Laboratories, Inc. All rights reserved.
All brand or product names appearing in this document are the trademark or registered trademark of their
respective holders. No SEL trademarks may be used without written permission. SEL products appearing in this
document may be covered by U.S. and Foreign patents.
Schweitzer Engineering Laboratories, Inc. reserves all rights and benefits afforded under federal and
international copyright and patent laws in its products, including without limitation software, firmware, and
documentation.
The information in this document is provided for informational use only and is subject to change without notice.
Schweitzer Engineering Laboratories, Inc. has approved only the English language document.
This product is covered by the standard SEL 10-year warranty. For warranty details, visit selinc.com or contact
your customer service representative. PM2890-01
SEL-2890 Instruction Manual Date Code 20210715

Date Code 20210715 SEL-2890 Instruction Manual
Table of Contents
List of Tables........................................................................................................... iii
List of Figures...........................................................................................................v
Preface...................................................................................................................... vii
Section 1: Introduction & Specifications
Introduction ............................................................................................................1.1
Features ..................................................................................................................1.1
Applications ...........................................................................................................1.2
Specifications .........................................................................................................1.9
Section 2: Installation
Introduction ............................................................................................................2.1
Installation..............................................................................................................2.1
Initial Checkout......................................................................................................2.3
Section 3: Settings and Commands
Introduction ............................................................................................................3.1
Settings...................................................................................................................3.1
Commands............................................................................................................3.10
Command Summary.............................................................................................3.11
Ethernet Network Operation Settings ..................................................................3.14
Section 4: Detailed Application Examples
Introduction ............................................................................................................4.1
Job Done Example 1 ..............................................................................................4.1
Job Done Example 2 ..............................................................................................4.3
Job Done Example 3 ..............................................................................................4.6
Section 5: Troubleshooting
Introduction ............................................................................................................5.1
SEL-2890 Indicator LEDs......................................................................................5.1
Troubleshooting Procedures...................................................................................5.2
Technical Support...................................................................................................5.3
Appendix A: Firmware and Manual Versions
Firmware ...............................................................................................................A.1
Instruction Manual ................................................................................................A.3

SEL-2890 Instruction Manual Date Code 20210715
Table of Contentsii
Appendix B: Firmware Upgrade Instructions
Introduction ...........................................................................................................B.1
Important Note Regarding Settings .......................................................................B.1
Required Equipment..............................................................................................B.1
Upgrade Procedure ................................................................................................B.2
Appendix C: HTML Code
Appendix D: Alitree Applet
Introduction .......................................................................................................... D.1
Tree View Java Applet.......................................................................................... D.2
Appendix E: ASCII Reference Table
Appendix F: Open Network Ports
Index

Date Code 20210715 SEL-2890 Instruction Manual
List of Tables
Table 2.1 SEL-2890 EIA-232 Serial Port Pinout ..................................2.1
Table 3.1 SEL-2890 Settings Summary ................................................3.1
Table 3.2 SEL-2890 Command Summary...........................................3.11
Table 3.3 SEL-2890 Network Configuration Settings.........................3.14
Table 3.4 GATEWAY Address Setting Examples ...............................3.15
Table 5.1 SEL-2890 LED Indicators .....................................................5.1
Table 5.2 Troubleshooting Procedures ..................................................5.2
Table A.1 Firmware Revision History...................................................A.1
Table A.2 Instruction Manual Revision History....................................A.3
Table C.1 Callout Numbers in Figure C.1.............................................C.4
Table C.2 HTTP Files ...........................................................................C.4
Table E.1 ASCII Reference Table......................................................... E.1

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Date Code 20210715 SEL-2890 Instruction Manual
List of Figures
Figure 1.1 Example Ethernet Substation Network..................................1.3
Figure 1.2 SEL Default HTTP (WEB=SEL) ..........................................1.5
Figure 1.3 BTCP Tunneling Using Broadcast ........................................1.8
Figure 2.1 Programming Cable Connection............................................2.2
Figure 2.2 SEL-C642 Cable Wiring Diagram.........................................2.2
Figure 2.3 Telnet Window.......................................................................2.5
Figure 4.1 Minimal Email Network Connection.....................................4.1
Figure 4.2 Summary Event Report Email From an SEL Relay ..............4.2
Figure 4.3 Example Telnet Serial Encapsulation System .......................4.3
Figure 4.4 Network Parameters Dialog Box ...........................................4.5
Figure 4.5 Serial Tunneling Network Connection ..................................4.7
Figure 5.1 Example SEL-2890 Panel......................................................5.1
Figure C.1 HTML Code Shown in Figure 1.2........................................C.3
Figure C.2 Example HTML Code ..........................................................C.5

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Date Code 20210715 SEL-2890 Instruction Manual
Preface
Safety Information
Dangers, Warnings, and Cautions
This manual uses three kinds of hazard statements, defined as follows:
Safety Symbols
The following symbols are often marked on SEL products.
DANGER
Indicates an imminently hazardous situation
that, if not avoided, will result in serious death
or injury.
WARNING
Indicates a potentially hazardous situation
that, if not avoided, could result in death or
serious injury.
CAUTION
Indicates a potentially hazardous situation
that, if not avoided, may result in minor or
moderate injury or equipment damage.
CAUTION
Refer to accompanying documents.
ATTENTION
Se reporter à la documentation.
Earth (ground) Terre
Protective earth (ground) Terre de protection
Direct current Courant continu

SEL-2890 Instruction Manual Date Code 20210715
Preface
Safety Information
viii
Safety Marks
The following statements apply to this device.
Alternating current Courant alternatif
Both direct and alternating current Courant continu et alternatif
Instruction manual Manuel d’instructions
DANGER
Removal of enclosure panels exposes circuitry
which may cause electrical shock which can
result in injury or death.
DANGER
Le retrait des panneaux du boîtier expose le
circuit qui peut causer des chocos électriques
pouvant entraîner des blessures ou la mort.
WARNING
Have only qualified personnel service this
equipment. If you are not qualified to service
this equipment, you can injure yourself or
others, or cause equipment damage.
AVERTISSEMENT
Seules des personnes qualifiées peuvent
travailler sur cet appareil. Si vous n’êtes pas
qualifiés pour ce travail, vous pourriez vous
blesser avec d’autres personnes ou
endommager l’équipement.
WARNING
This device is shipped with default passwords.
Default passwords should be changed to
private passwords at installation. Failure to
change each default password to a private
password may allow unauthorized access. SEL
shall not be responsible for any damage
resulting from unauthorized access.
AVERTISSEMENT
Cet appareil est expédié avec des mots de
passe par défaut. A l’installation, les mots de
passe par défaut devront être changés pour
des mots de passe confidentiels. Dans le cas
contraire, un accès nonautorisé á l’équipement
peut être possible. SEL décline toute
responsabilité pour tout dommage résultant de
cet accès nonautorisé.

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.

SEL-2890 Instruction Manual Date Code 20210715
Introduction & Specifications
Applications
1.2
Applications
The SEL-2890 can assist with many substation networking applications. A sampling of
applications is listed below to help you understand how each feature works. This
understanding should also give you ideas on how to apply the SEL-2890. Section 4:
Detailed Application Examples provides detailed application examples with settings.
Terminal Access
Use the SEL-2890 to provide terminal access over an Ethernet network to serial
devices. Similar to connecting a PC with terminal software to a serial IED, you can use
the transceiver to make this connection via an Ethernet network.
Many PC operating systems include a free Telnet application. Telnet applications
operate similarly to serial terminal applications. With a Telnet application, you must
specify an IP address and port number rather than a serial port and data rate. After you
start a Telnet session, your Telnet software operates similarly to a terminal program by
passing your keystrokes across the Ethernet network, through the transceiver, and into
the serial device.
Figure 1.1 displays different connection types from an engineering workstation to SEL
relays and a communications processor. This figure is not meant to display a best
choice integration architecture for a substation—many other factors need to be
considered and are beyond the scope of this manual. In this arrangement, the Telnet
application allows you to operate the user interface of the selected device similarly to a
direct serial connection. However, it is important to note that you have the ability to
Telnet through the SEL-2890 as described above and the ability to Telnet to the
SEL-2890 to change settings and control the transceiver. Telneting to the SEL-2890
and not through it is referred to as a Console session. Telnet port 1025 is the port used
for a Console session. Ports 23 and 1026–65534 are used to Telnet through the
SEL-2890 and out of its serial port. This type of Telnet connection is common among
software and is supported by SEL software.

Date Code 20210715 SEL-2890 Instruction Manual
Introduction & Specifications
Applications
1.3
Figure 1.1 Example Ethernet Substation Network
HTTP Server
The SEL-2890 provides an easy to use HTTP interface to SEL relays and SEL
communications processors. The three HTTP options are Custom, SEL, User, and Off.
When issuing settings to the transceiver, select one of these four options.
NOTE: A Telnet session has higher priority than the HTTP
interface. The following message will be sent to the web
browser if it is connected when a Telnet session is active:
“Unable to access device due to Telnet session from
IP: xxx.xxx.xxx.xxx.”
Engineering
Workstation
SEL-2890
SEL-2890
SEL Relays
Hub
SEL Relay Non-SEL IED SEL Relay
SEL-2890
SEL-2020/SEL-2030
Communications Processor
EIA-232 EIA-232 EIA-232
Ethernet

SEL-2890 Instruction Manual Date Code 20210715
Introduction & Specifications
Applications
1.4
HTTP Files
Use FTP to access the HTTP files in the transceiver. The files are located in folders that
are labeled and associated with the Custom, SEL, and User settings. The following
information should be selected when connecting with an FTP program.
➤Host Type: Select “automatic detect.” If this doesn't work or is
unavailable, select “UNIX.”
➤User ID: Enter sel2890. The User ID is fixed and is not settable.
Anonymous login is not permitted.
➤Password: Enter the Access Level 2 (2AC) password. Note that this
password will change if you change the Access Level 2 password
when modifying settings. The default password is furnished in
Section 3: Settings and Commands.
➤Port: The FTP port in the SEL-2890 is 21.
NOTE: The SEL-2890 FTP server does not support the PAS V
(passive transfer) command.
Use the automatic or binary selection for the type of file transfer. Listed below is the
FTP file structure for the transceiver.
➤Custom (Folder)
➢Images 1–5 in .gif format.
➢Images 6–9 in .jpg format.
➢index.htm
➢app1.zip
➢app2.zip
➢logo.jpg
➢Pages 1–9 in .htm format.
➤SEL (Folder)
➢access.htm
➢alitree.zip
➢closed.gif
➢data.htm
➢file.gif
➢index.htm
➢link.gif
➢logo.htm
➢logo.jpg
➢mail.gif
➢menu.htm

Date Code 20210715 SEL-2890 Instruction Manual
Introduction & Specifications
Applications
1.5
➢nodelist.txt
➢open.gif
➤User (Folder)
➢logo.jpg (maximum 16KB)
➢nodelist.txt
First, familiarize yourself with the SEL default HTTP files in Figure 1.2. The callout
numbers located on the left side of the HTML code are referenced in Ta ble C .1.
Figure 1.2 SEL Default HTTP (WEB=SEL)
Email
A Simple Mail Transfer Protocol (SMTP) email client is provided in the SEL-2890.
The primary purpose for the email function is to allow unsolicited messages, including
summary event reports, to be emailed. An unsolicited message is one that is sent to the
SEL-2890 when no Telnet or HTTP session is active. The SEL-2890 will take the
unsolicited data and email it to a designated email address. More than one unsolicited
message may be contained in an email. Also, an unsolicited message may be broken up
into more than one email. Email is sent two seconds after the end of an unsolicited
message. The end of an unsolicited message is determined by the MTDELAY setting.
The SEL-2890 will send an email message to the email server. If the email server is
unavailable the SEL-2890 will retry at a 1-minute, a 10-minute, and a 30-minute
interval. The message will be discarded if not successfully sent on the third try.

SEL-2890 Instruction Manual Date Code 20210715
Introduction & Specifications
Applications
1.6
Serial Routing
The basic principle of serial routing is the ability to examine unsolicited data coming
into the serial port, compare the first 8 bytes of the message with a predefined mask,
and then route the message to a specified Internet Protocol (IP) address depending on
the examined information. Effectively, you can send messages out of a serial port
through the SEL-2890 and they can be routed to different destinations depending on
the first 8 bytes of the message. As many as three different routing masks are available
in the SEL-2890.
Serial Tunneling
Serial tunneling is the ability to make a virtual serial connection between two IEDs
across an Ethernet network. The object is to create a virtual serial cable that passes all
data from point to point across an Ethernet network and have this connection appear to
be completely transparent to the end serial devices. You can serial tunnel between the
SEL-2890 and port servers, serial hubs, SEL-2701 Ethernet processors, and other
SEL-2890 transceivers. However, the SEL-2890 transceivers were designed and tested
to provide a robust serial tunnel between each other. Serial tunneling to other devices
may have limitations on passing specific binary protocols.
The challenge of serial tunneling lies in the indeterministic nature of the Ethernet
network. A master device may send a message to a slave. The slave responds in a
timely fashion. But if the Ethernet packet containing the message has a collision, then
the packet will get re-sent. This may happen several times. If it happens too often, then
the data will return to the master with some appreciable delay. Some masters and
associated protocols may not be very tolerant of this timing condition. Typically, serial
tunneling is successful and reliable in a properly designed network. But, all protocols
and all networks are not compatible for serial tunneling. Test and understand your
particular application before installing in the field.
Different serial tunnel options are available in the SEL-2890. They are Commanded
Mode, Telnet, Transport Control Protocol (TCP), and Broadcast TCP (BTCP).
Commanded Mode
The Commanded mode of a serial tunnel provides the ability to make serial tunnels
dynamically with a command rather than with settings. This provides a convenient way
for software to control a network of serial tunnels. The software Telnets into the
SEL-2890 console and issues a TUNNEL [IP]:[Port] command, then the SEL-2890
establishes a Telnet tunnel to that device. The IP and Port information is stored in
volatile memory and therefore the Telnet tunnel will be set to “Off” if power is cycled
on the SEL-2890.

Date Code 20210715 SEL-2890 Instruction Manual
Introduction & Specifications
Applications
1.7
Telnet Tunnel
An automatic, fixed point-to-point serial connection across an Ethernet network is
established with a Telnet tunnel. Use this method when you need a continuous point-to-
point connection for serial protocols like Modbus®and DNP3. The settings for this
tunnel, IP and Port, are saved in nonvolatile memory and will be retained if power is
cycled on the SEL-2890. The SEL-2890 automatically connects to the remote device
(it may be another SEL-2890) and allows serial traffic whenever the Ethernet network
is operational.
TCP Tunnel
A TCP tunnel functions almost identically to a Telnet tunnel except that the network
connections are opened and closed rather than maintained continuously.
BTCP Tunnel
A BTCP (broadcast TCP) tunnel functions like a multipoint serial network. Figure 1.3
shows the physical connection for this type of tunnel service. The Telnet tunnel
establishes a connection and then maintains a connection. By contrast, the BTCP
tunnel is established between two SEL-2890 transceivers, then data are transmitted and
received, and lastly the connection is terminated. The ability to use this type of tunnel
for broadcast messages is the important aspect. All devices must be on the same
subnet.
As an example, the master IED device in Figure 1.3 sends out, via a serial port, a
request for data from Slave #1. These serial data are then transmitted to the Ethernet
network through the SEL-2890 connected to the master polling IED. All of the other
SEL-2890 transceivers receive the request and send it through their respective serial
ports. However, only Slave #1 answers and the data are returned to the master polling
IED.
It is important to note that the serial protocol described in this method uses an address
system. This address system is common in virtually all SCADA type polling protocols.
If a non-addressed, serial protocol is used, all of the slaves will answer and the master
polling IED will receive the data but may not know which slave it came from. This may
be acceptable if the serial data are self-identifying.
Collisions will occur if all the slave devices answer at the same time. The SEL-2890
transceiver’s Ethernet processor will make the necessary adjustments and will keep
retransmitting until a message is successfully sent. However, the network may be
flooded by these retries and network performance will be significantly degraded.
The broadcast method is defined in the Ethernet standard. See your network
administrator about using broadcast messages in your network. Details on setting the
SEL-2890 for BTCP tunneling using broadcast are furnished in Section 3: Settings and
Commands, followed by an example in Section 4: Detailed Application Examples.

SEL-2890 Instruction Manual Date Code 20210715
Introduction & Specifications
Applications
1.8
NOTE: All devices must be on the same subnet.
Figure 1.3 BTCP Tunneling Using Broadcast
LAN
Master Polling IED
Slave IED
Addr. 10
Slave IED
Addr. 11
SEL-2890
#5
SEL-2890
#4 SEL-2890
#3
SEL-2890
#2
SEL-2890
#1
Slave IED
Addr. 13
Slave IED
Addr. 12

Date Code 20210715 SEL-2890 Instruction Manual
Introduction & Specifications
Specifications
1.9
Specifications
Compliance
Designed and manufactured under an
ISO 9001 certified quality management
system
General
Indicators
Red LED: Receive Data
Green LED: Link
Ethernet Port
Connector: RJ45
Data Rate: 10 Mbps
Interface: 10BASE-T
Communications Protocols
Protocol Stack: TCP/IP
File Exchange: FTP
Terminal Server: Telnet
Terminal Client: Telnet
Web Server: HTTP
Email Client: SMTP
DHCP Client: DHCP
Serial Port
Connector: DB-9 Male
Data Rate: 300 bps to 115200 bps
Interface: EIA-232
Power Requirements
4.5 to 5.5 Vdc: <250 mA
supplied through Pin 1 of the DB-9 connector
Operating Temperature Range
–40to +85C (–40to +185F)
5 to 95% humidity (non-condensing)
Dimensions
1.25 inches wide
3.425 inches deep
0.85 inches high
Type Tests
Electromagnetic Compatibility
Radiated
Emissions:
IEC 60255-25–2000,
Class A
Canada ICES-001(A) /
NMB-001(A)
Electromagnetic Compatibility Immunity
Conducted RF
Immunity:
ENV 50141–1993, 10
Vrms
IEC 61000-4-6–1996, 10
Vrms
Digital Radio
Telephone RF:
ENV 50204–1995, 10
V/m at 900 MHz and
1.89 GHz
Electrostatic
Discharge:
IEC 60255-22-2–1996,
IEC 61000-4-2–1999,
[EN 61000-4-2–1995],
Levels 1, 2, 3, 4
Fast Transient
Disturbance:
IEC 61000-4-4–1995,
IEC 60255-22-4–1992,
4 kV at 2.5 and 5 kHz
(Shielded Twisted Pair
Category 5 cable
required for compliance)
Radiated Radio
Frequency:
ENV 50140–1993,
IEC 60255-22-3–1989,
10 V/m
IEEE C37.90.2–1995, 35
V/m
Type Test
Compliance
Criteria:
1) That the SEL-2890
does not damage or
impede relay operation.
2) The SEL-2890 is
allowed to lose data
during testing events.
3) The SEL-2890 must
recover without external
intervention.
Environmental
Cold: IEC 60068-2-1–1990
[EN 60068-2-1–1993],
Test Ad: 16 hrs @ 0C
Dry Heat: IEC 60068-2-2–1974
[EN 60068-2-2–1993],
Test Bd: 16 hrs @ +70C

SEL-2890 Instruction Manual Date Code 20210715
Introduction & Specifications
Specifications
1.10
Damp Heat,
Cyclic:
IEC 60068-2-30–1980,
Test Db: 25–55C,
6 cycles, 95% humidity
Vibration: IEC 60255-21-1–1988,
Class 1
IEC 60255-21-2–1988,
Class 1
IEC 60255-21-3–1993,
Class 2