HC-NET is a device that converts RS-232 to RS-485.  To be connected to COM1 or COM2 of your computer.

Specification

RS-232 to PC

RS-232 to PC 9 Pin male-female cable

RS-485 +

Connect to HC-IO / PT-811 RS-485+ or Pelco, Ademco, Lilin Dome camera RS-485+

RS-485 -

Connect to HC-IO / PT-811 RS-485 - or Pelco, Ademco, Lilin Dome camera RS-485 -

DC IN

Power Adaptor DC 5V , 1000mA Inner Positive

Communication

To PC : RS232, 9600.  To Output : RS485, 9600

Operation Temperature

0 to 50 degree C

Humidity

5% to 95% (non-condensing)

Dimension

104 (W) *70 (H) *32 (D) mm