The DC12 controls one door. It connects on the local RS485 bus to SR34i and works with a variety of card readers (including magnetic stripe, proximity and hands-free) and keypads. It has a built-in display for status and error information.

Interface	RS485 connection to SR34i segment controller
Operating temperature	-35 to +50 °C
Operating voltage	8 to 40 VDC or 8 to 30 VAC
Current consumption	50 mA in standby, 200 mA with all relays activated.
Dimensions (WxHxD)	248 x 182 x 55 mm