EZN850
2.1 Terminal Connector
DC OUT
-Alarm: Connect to Alarm In/Out device
-12VDC: Provide power source for IR illuminator (Max. load is = 1A; IR illuminator
is optional)
-GND: Ground pin for illuminator
-RS485 (+-): A half-duplex RS-485 interface for keyboard controlling
Terminal connector schematic diagram
8