Bosch AL802-WAL Power extender NAC 12/24V red F.01U.020.477

Two (2) Class A or four (4) Class B outputs Input to Output Follower mode maintains synchronization of NAC devices AC Fail, Low Battery, and Battery Presence supervision LEDs indicate prior fault on one or more signaling circuit outputs One auxiliary power output (1 A supply current) with battery backup Dimensions: 15.5 in. high x 12 in. wide x 4.5 in. deep (39.4 cm high x 30.5 cm wide x 11.4 cm deep) Weight: 17 lbs (7.7 kg)