All Doug Fleenor Design products that use a three position address switch to set the unit's starting address have special functions when addressed above 512.

All model:
Address	Mode
601-696	Forces selected output channel to FULL
	Example: 606=Output 6 to FULL

model: (DMX2REL5A, DMX6REL1A, DMX6REL15A, DMX6REL30A)
Address	Mode
698	If any channel 1-512 is above 0% all relays close
Optional 698	Upon request a delay can be add so that the transitions from closed to open requires all levels to be at 0% for two minutes

model: (DMX2REL5A, DMX6REL1A, DMX6REL15A, DMX6REL30A, dmx12rel5a DMX24ANL, DMX96ANL, DMX96OC)
Address	Mode
699	If DMX512 is present close all relays