The XM-2 is the expansion panel for the BMPlus 3000 series control panels. The XM-2 will allow the original 3 zone panel to be expand 2 zones at a time. The XM-2 comes with a "plug-and-play" cable that will connect to the main zone panel.

EWC® Ultra-Zone Expansion Control Panel, Series: XM, 19 to 30 VAC, 4 A, 7 VA VA Rating, 60 Hz, 2 Zones, 0 to 95% RH Non-Condensing Humidity, 2 Heat/1 Cool Stages, -20 to 160 deg F, 10 in W x 9-7/8 in H x 1.7 in D

• 18 ga solid copper wire
• On board LEDs indicate system operation

• Specification Sheet https://assets.unilogcorp.com/267/ITEM/DOC/EWC_XM_2_Specification_Sheet_1.pdf