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11.
Extending the System
To increase the number of doors or equipment in the system, extension units must be
purchased along with a license dongle to insert into the master unit.
The available extensions include the GARDiS 4+ and GARDiS I/O. The extension units may
be a mixture of both types of extensions and use the RS485 to daisy chain the units
together. A maximum of 10 extension units may be used.
License Dongle
The dongle will determine the total number of units permitted in the system. The image
below shows how to insert the purchased dongle.
