Technical Specifications - I/O Terminal Application - D-Link DCS-5020L User Manual

Appendix A - Technical Specifications
Technical Specifications - I/O Terminal Applications
The digital input/output port is typically used in association with programming scripts for developing applications for motion detection, event triggering,
alarm notification via e-mail, and a variety of external control functions. The 4-pin I/O Terminal Block is located on the rear panel and provides the
interface of a photo-coupled switch output and a photo-coupled input.
Connector Pin Assignment
Sign
DO-
DO+
DI-
DI+
Monitoring and Controlling
By entering http requests in your browser's URL field, it is possible to:
• Monitor the status of digital input.
• Turn the output switch on or off.
Interface Schematic
Output device (load) is driven by an external AC or DC power supply.
Input device (active control device) has an independent power supply.
D-Link DCS-5222L User Manual
FUNCTION
Photo-Relay OUTPUT (Normal Open)
Photo-Relay OUTPUT(Common)
Photo-Relay INPUT (-)
Photo-Relay INPUT (+)
SPECIFICATION
Close circuit current max. 70 mA AC, or 100 mA DC.
On-Resistance max. 30 Ohm.
Open circuit blocking voltage max. 240VAC or 340VDC
Active High voltage 2.5~25VDC
Inactive Dropout voltage 0~1.5 VDC
Internal on-current has limit at 7mA
to protect the photo-relay.
DO-
DO+
AC/ DC
Load
70