User's Manual

Webthru SWC 306 User’s Guide

Sensor In To input video signal through 6 coaxial cables

Alarm Out To output video signal through 6 coaxial cables

3. RS232/RS422/RS485 Descriptions

Connector Name Description

Power To supply power to external devices

Ground To ground cables of power, communication, etc.

RS-232

To communicate between Webthru SWC 306 and external devices such a

CCTV camera or an external modem. These pins are for devices that

satisfy RS-232C protocol, and they are consisted in RX and TX.

RS-422

To communicate between Webthru SWC 306 and a CCTV camera that

satisfies RS-422 protocol. They are half-duflex. It is consisted in R+, R-,

T+, and T-.

RS-485

To communicate between Webthru SWC 306 and a CCTV camera that

satisfies RS-485 protocol. They are consisted in S+ and S-.

P G

RS232

RS422

RS485

Rx Tx R+ R- T+ T-

S+ S-