Johnson Systems EDI-120 Control Retrofit - Manual (Page 13)

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EEPROM
Memory Module
EEPROM Memory Module
All EDI-120 retrofit control systems come equipped with a removable
EEPROM memory module located at the rear of the EDI-120 chassis. The
EEPROM memory module inserts into the on-board connector located at the
rear of the EDI-120 chassis. The EEPROM memory module is primarily used
to backup important configuration settings, and may be removed for safe
storage.
If a firmware update is required, Johnson Systems Inc. may supply an
EEPROM memory module with the latest firmware version. The firmware
EEPROM memory module can be inserted into connector, and the firmware
can be loaded into the microcontroller.
Refer to menu items “EEPROM”, “FW-LOAD”, “RESTORE” and “BACKUP”
on page 29 to 31 for further details.
NOTE: Be sure to “BACKUP” the EDI-120 when installation configuration is
complete.