What firmware options and accessories will my Model 831 support?
Required Hardware and Firmware for listed Features

Brief Feature Description
- 32 MB Internal DRAM – Internal dynamic RAM double from 16 MB to 32 MB. Model 831’s with 32 MB DRAM will not run firmware versions prior to V2.20
- 831-INT-ET Watchdog – A feature that will reboot the Model 831 and 831-INT-ET when there is a USB communication failure, the Model 831 becomes unresponsive, or the 831-INT-ET crashes
- Clock accuracy improvements – Internal clock accuracy improved to < ±10 s/month drift
- Timers power on 831 – A feature that allows daily timers to automatically turn on the Model 831 power just prior to the set start time.
- 831-FFT – FFT firmware option
- Z-MODEM download – Firmware feature that provides a data transmission protocol with data validation and automatic retries for back packets
What firmware options and accessories will my Model 831 support?
Required Hardware and Firmware for listed Features

Brief Feature Description
- 32 MB Internal DRAM – Internal dynamic RAM double from 16 MB to 32 MB. Model 831’s with 32 MB DRAM will not run firmware versions prior to V2.20
- 831-INT-ET Watchdog – A feature that will reboot the Model 831 and 831-INT-ET when there is a USB communication failure, the Model 831 becomes unresponsive, or the 831-INT-ET crashes
- Clock accuracy improvements – Internal clock accuracy improved to < ±10 s/month drift
- Timers power on 831 – A feature that allows daily timers to automatically turn on the Model 831 power just prior to the set start time.
- 831-FFT – FFT firmware option
- Z-MODEM download – Firmware feature that provides a data transmission protocol with data validation and automatic retries for back packets
What firmware options and accessories will my Model 831 support?
Required Hardware and Firmware for listed Features

Brief Feature Description
- 32 MB Internal DRAM – Internal dynamic RAM double from 16 MB to 32 MB. Model 831’s with 32 MB DRAM will not run firmware versions prior to V2.20
- 831-INT-ET Watchdog – A feature that will reboot the Model 831 and 831-INT-ET when there is a USB communication failure, the Model 831 becomes unresponsive, or the 831-INT-ET crashes
- Clock accuracy improvements – Internal clock accuracy improved to < ±10 s/month drift
- Timers power on 831 – A feature that allows daily timers to automatically turn on the Model 831 power just prior to the set start time.
- 831-FFT – FFT firmware option
- Z-MODEM download – Firmware feature that provides a data transmission protocol with data validation and automatic retries for back packets
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