The Di/Do Schematic - Eneo GLS-2302H Operating Manual

3.3 The DI/DO Schematic

Photo Relay
Photo Relay
Photo Relay
RS-485 Transceivers
DI
Receives signals from a reed switch, vibration sensor, or any other external security device
DO
Connects to an alarm or buzzer
485+/485-
Connects to an RS-485 interface for controlling auxiliary equipment such as an external camera
enclosure for pan, tilt, and zoom functionality
DI 1+
DI 1–
DI 2+
DI 2–
DO +
DO –
485+
485–
8
Reed Switch
Vibration Sensor
ALARM
RS-485 Device