The Burk Plus-X Integrated Command Relay Unit (ICRU) facilitates the connection of 8 command channels to the ARC Plus (8 raise and 8 lower relays). Relays can be configured as momentary or latching. Connect up to 32 units to one ARC Plus for 256 channels.Main Features:8 command channels (raise/lower pairs)Relays configurable as momentary or latchingEasily expands to 256 channels per ARC PlusSpecifications:Dimensions: 1.75 (4.45 cm) H x 19 (48.26 cm) W x 12 (30.48 cm) DOperating Temperature/Humidity: 0 to 40 C; 5 to 85% RHPower Requirements: 100 to 240 VAC, 47-63Hz, 1A; Power entry module with standard, grounded power cord supplied; 1A fuse protection.Connectivity: Up to 32 ICRUs connect to ARC Plus via LAN/WANChannel Capacity: 16 relays (individual or up to 8 raise/lower pairs)Output Types: C, NO, NC relay outputs; momentary or latching