HE4000 Encoding System
Maintenance and Software Upgrades
M aintenance and S oftw are U pgrades
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7.0 Maintenance
HE4000 encoders require no periodic or preventive maintenance other than keeping the cooling
fan intake grills free of obstruction.
7.1 Field Software Upgrades
The HE4000 is controlled by a built-in microcontroller equipped with a non-volatile memory that is
used to store configuration settings, operational software, operational firmware, and field
programmable gate array (FPGA) configuration files.
Great care has been taken to provide for simple field software upgrade procedures in the
HE4000. Software upgrades are much simpler for the user than in previous ComtechTV
encoder products.
For instructions on performing a field software upgrade, contact a ComtechTV Product
Support engineer.
01-0951-404 Rev B
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