Features:

* 10 groups of 24V compulsive power supply.

* Total power output is up to 250W.

* Single group power output is up to 150W.

* Support control max 500pcs volume control with compulsive cut function.

* Support expansion to 300 zones at most.

* A/B channel alarm inputs and A/B channel alarm outputs.

* Several units work together after pre-set dip switch.

* 2 RJ45 communication port with fire alarm system or cascade with another unit.

Specifications: