A SERVICE OF

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PRELIMINARY
3 Communication (continued)
3.3 Upgrading Firmware for the System Board (continued)
c) After confi rming the command, wait for the LCD to display “READY TO DOWNLOAD FIRMWARE!” (Figure 3.3d).
Note 1: Once you confi rm the command, the system will go into “system fi rmware upgrade” mode. If you want to cancel the upgrade command
before programming, the BYPASS input breaker (Q2) must be turned off.
Note 2: The Firmware Upgrade setting is only allowed in manual bypass mode.
d) Link the UPS with a PC via the RS232 port.
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Fig 3.3d