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Summary of Contents for AV Widgets VS42M
- Page 1 AV Widgets VS42M RS232/RS485 Controlled 4:1 Video Switch...
- Page 2 PCB-100 Rev. 2 Description The VS42M is a 4:1 composite video and mono audio switch that accommodates wired RS232 or RS485 remote control. Designed for home automation systems, the VS42M provides an inexpensive method to control composite video sources. Primary interface is via RS232 or RS485, simple diagnostic switching controls are also provided on the front panel.
- Page 3 Figure 1 - VS42M Front Panel Three functions can be selected from the Next and Mode buttons. (1) Select Next Channel. Press Next button. The next channel will be selected. (2) Select Manual or Auto Scan. A press of the Mode button will toggle between manual mode or auto mode.
- Page 4 Figure 2 - VS42M Rear Panel Serial Control The VS42M can be controlled with RS232 or RS485 signals. RS232 connection requires only 3 connections, TX, RX and Ground. Selection between RS232 or RS485 is automatic. RS232 and RS485 signals can not be connected at the same time.
- Page 5 AV Widgets Model:VS42M Ver:1.0f Scan: Auto Scan: 10 s Address: 01 (c) Copyright Statement When a valid serial command is received, the VS42M will acknowledge the command. Sample feedback is presented below. Transmitted Received AVW01S1xxE CMD OK 1 AVW01S2xxE CMD OK 2...
- Page 6 CMD ERROR 2 ADDRESS A command was sent to an invalid address. CMD ERROR 3 GLOBAL Occurs if a command other than A (Address Change) or R (Read Address) is issued to a global address of 00. Figure 3 - VS42M Top Label...
- Page 7 Specifications • Video termination 75 ohms • Video source resistance 75 ohms • Video frequency response DC to 15 MHz • Video distortion < 0.15% @ 10 KHz • Video gain • Video coupling DC / Direct • Audio termination 20 Kohms •...
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