Date Code 20210715
SEL-2890 Instruction Manual
Section 5
Troubleshooting
Introduction
This section describes how to determine the operating status of your SEL-2890 and
how to troubleshoot SEL-2890 operation. This section contains information on the
following topics:
➤
Reading the SEL-2890 indicator LEDs
➤
Troubleshooting an SEL-2890 installation
SEL-2890 Indicator LEDs
There are two indicator LEDs on the SEL-2890. The LEDs and panel label for the dual
twisted-pair SEL-2890 are shown in
. The operation of each LED is
.
Figure 5.1
Example SEL-2890 Panel
The Tx/Rx LED flashes when data are being sent or received via the Ethernet port. The
Link LED illuminates and remains illuminated when properly connected to the
Ethernet.
Table 5.1
SEL-2890 LED Indicators
Location
Color
Description
Operation
Left
Red
Tx/Rx
Flashes when transmitting or receiving
Ethernet messages.
Right
Green
Link
Illuminated when a good Ethernet link is
detected.
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