VERTIV 
FIRMWARE RELEASE NOTES

AFFECTED MODELS: GXT5 16KVA-20KVA VRLA (I)
GXT5-16KIRT9UXL
GXT5-20KIRT9UXL

NOTE:
Each release includes all the updates from previous releases.
Refer to the update procedure in the zip file for detailed update instructions.

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2025-JAN RELEASE

FILES:
GXT5LA-MCUV250-DSPV160-16-20k-I.bin

1. Updated the USB HID protocol mapping to mimic the GXT4 models
2. Changed the default setting of "start with no battery" to ENABLED
3. Improved the battery test feature to address multiple battery models
4. Enabled the Auto-restart feature to function with no battery detected

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2023-OCT RELEASE

FILES:
GXT5LA-MCUV240-DSPV150-16-20k-I.bin

1. Improved battery charging logic to automatically set the charge current and temperature compensation
2. Improved battery test logic accuracy for both automatic & manual tests for all load levels
3. Fixed a minor security vulnerability in the CLI interface

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2022-OCT RELEASE

FILES:
GXT5LA-MCUV230-DSPV140-16-20k-I.bin

1. Added MODBUS RTU protocol integrated as standard

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2022-MAY RELEASE

FILES:
GXT5LA-MCUV210-DSPV140-16-20k-I.bin

1. Improved RDU101 web-interface active events log by removing "UPS Output on Inverter" alert.

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2021-11-15 RELEASE

FILES:
GXT5-MCU-V200-DSP-V140(16-20K)(I).bin

1. Added all UPS status and setting datapoints available on the LCD to the RDU101 web-interface and SNMP/other protocols.
2. Added a new user-configurable alarm, "Replace Battery Soon", which can be set to alert the user 2, 3, or 4 months before the time the UPS calculates a new battery will be needed, allowing time for replacement batteries to be ordered.
3. Added the ability to adjust [Dischg protect time] and [Guaranteed Shutdown] settings on the CLI.
4. Improved the downloadable 'Event Log.csv' by replacing the catch-all "General Unspecified Event" with each UPS alarm as reported on the UPS LCD.
5. Fixed an intermittent communication issue between RDU101 and UPS.

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2020-10-12 RELEASE

FILES:
GXT5-MCU-V190-DSP-V140(16-20K)(I).bin

1. Enhanced the security of the firmware update procedure by using encrypted firmware files. This prevents the use of potentially non-authentic firmware.
2. Improved the [Max charge curr] setting to only show valid options for the installed UPS/EBC configuration.
3. Added the ability to change the LCD settings menu and maintenance menu passwords via the CLI.
4. Added the ability to execute a delayed shutdown from 0-999 seconds via the CLI.
5. Added Czech language option to the LCD.
6. Improved the fan performance by making the speed more stable and smoothing the transition between speeds.
7. Added the DSP firmware kernal version number to the LCD About tab.
8. Improved the displayed load and runtime sensitivity on light loads down from 5% to 2% load, on the 5K through 20K models. (GXT5-16KI, GXT5-20KI)
9. Changed the setting name of [Temperature type] to [Temperature unit].
10. Changed the default temperature display from  C to  F for HV, MV, and LV models.

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2020-05-30 RELEASE

FILES:
GXT5-MCU-V180-DSP-V130(16-20K)(I).bin

1. Changed the user setting and factory default value of [Guaranteed Shutdown] to "disabled" to reflect the use-case of the majority of customers. 
2. Changed the user setting and factory default value of [Battery Periodic Test] to "enabled" to allow automatic battery self checks.  The default interval for battery self checks is 8 weeks, but this can be changed in the settings menu.
3. Improved the behavior of [Any Mode Shutdown] by checking the state of the dry contacts during power up after a utility outage and return.  If the contacts are cleared during the outage, the UPS will now power back on automatically when the utility returns.
4. Improved the complete local UPS shutdown procedure by adding step-by-step instructions to the LCD when a full shutdown is initiated.
5. Added a warning message to the RDU101 web interface showing when the UPS detects a disconnected external battery cabinet. (RDU101 v1.4 required.)
6. Added support for Vertiv's new Power Assist tool.
7. Improved the responsiveness of the status updates reported through the USB HID / Windows OS.
8. Added ability to switch the temperature readings from C to F.
9. Added Italian language to the LCD.
10. Changed the name of the setting [Battery Replacement Time] to [Battery Last Replaced] and updated the default time from 2017-12-14:00:00:00 to the date/time of production.
11. Corrected the issue where "unavailable" was being displayed in the [Battery Temperature] field in the RDU101 web interface.
12. Added legacy GXT4 datapoints to the RDU101 interface: BatteryCharger, BatteryFloatVoltage, DeviceManufactureDate. (RDU101 v1.4 required.)

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2019-11-30 RELEASE

FILES:
GXT5-MCU-V170-ALL.bin
GXT5-DSP-V120(16-20K)(I).bin

1.  Added the reporting of the number of external battery cabinets through the command line interface.
2.  Updated the format of the discharge time shown on the command line interface to be consistent with the LCD; XX hr XX min.
3.  Updated the command line interface networking setup to allow setting a static IP address to the RDU101 card.
4.  Set the default initial battery running time to 0 days after full-charge at factory.
5.  Improved the firmware upgrade method by removing the "UPS has no output" alarm that the user had to clear after each update.
6.  Added support for YDN23 communications protocol.
7.  Added the "Battery Not Qualified" alarm to the RDU101 interface.
8.  Added support for Vertiv's new Power Assist tool.
9.  Increased the maximum number of possible connected external temperature sensors to 40.
10. Added the temperature reading to the RDU101 interface.

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2019-09-13 RELEASE

FILES:
GXT5-MCU-V160-ALL.bin
GXT5-DSP-V120(16-20K)(I).bin

1. Added LCD pop-up notication message if the number of detected external battery cabinets changes.

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2019-06-04 RELEASE

FILES:
GXT5-MCU-V150-ALL.bin
GXT5-DSP-V120(16-20K)(I).bin

1. 16-20KVA I initial release.