Date Code 20210715 SEL-2890 Instruction Manual
Appendix B
Firmware Upgrade Instructions
Introduction
SEL may occasionally offer firmware upgrades to improve the performance of your
transceiver. The SEL-2890 transceiver stores firmware in Flash memory; therefore,
changing physical components is not necessary. A firmware loader feature is included
in the SEL-2890 transceiver. These instructions give a step-by-step procedure to
upgrade the transceiver firmware by downloading a file from a personal computer to
the transceiver via the serial port.
Important Note Regarding Settings
The firmware upgrade procedure may result in lost transceiver settings because of the
addition of new features and changes in the way memory is used. It is imperative to
have a copy of the original transceiver settings available in case they need to be re-
entered. Carefully following these upgrade instructions will minimize the chance of
inadvertently losing transceiver settings.
Required Equipment
➤ Personal computer
➤ Terminal emulation software that supports text file transfer
➤ SEL-2890 programming cable (SEL-C663 or SEL-C642)
➤ Disk containing firmware upgrade file
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