User`s Manual Model VSM-404 - AV-iQ
Contents
1. Hall Research Technologies Inc 3613 W Mac Arthur Blivd Suite 612 Santa Ana CA 92704 Phone 714 641 6607 Fax 714 641 6698 Manual displaying any of the 4 inputs or blanked out The inputs can be RGBHV e g VGA from a PC RGBS or RGsB with resolutions to 1600x1200 pixels all inputs are terminated and buffered using 250 MHz DC coupled video amplifiers for a sharp and perfect reproduction at each output The VSM 404 outputs can drive cables in excess of 150 feet An RS232 Serial Port is provided on the unit to control the selection for the outputs A Serial Keypad is supplied with each unit The VSM 404 requires an external power supply for operation which Is also furnished The keypad does not require a separate power supply and is powered by the base unit The VSM 404 employs HDD15 female connectors for all video inputs and outputs with standard SVGA pinout All cable connections are located on the rear of the unit The front panel provides the on off power switch and individual indication of the channels selected for each output Setting up the VSM 404 e Connect your video sources to the top row of the connectors labeled INPUT 1 through 4 e Connect the display devices such as monitors or projectors to the outputs e Connect the keypad to the RS232 port on the device e Plug in the power supply Operation of the VSM 404 Upon power up all outputs select input 1 for display In order to change the channel s2. elected for each output a simple key sequence is entered on the keypad Output Channel that you want to change Input channel or 0 to blank that you want to display Enter Page 1 of 2 09 11 01 For example to set output 3 to display input 1 punch 3 1le To blank output 4 punch 4 0 e In entering the keys you are given 5 seconds between consecutive keystrokes or the entry is automatically cancelled So if you stop for more than 5 seconds in between any two keys the keypad automatically resets itself Also if you press a key which is out of range it will be ignored and the keypad resets once again For example 1 2 gt Cancels entry because was not expected You can check the status of the device by looking at the front panel LED s All outputs to Same Input Command To effect and set all outputs to display the same input with one command string now you can use as a wild card character instead of the individual output channel numbers For Example to set all outputs to display input 1 punch le Specifications for the Model VSM 404 Equipment included Weight The VSM 404 base unit Base unit 2 2 lbs Keypad 1 lbs Power Supply 3 Ibs UL approved 110 230 Vac power supply Control Keypad Video Specs User s Manual Connector HDD15 female Coupling DC Dimensions Video Level 0 7 v p p LxWxH 8 3 x 5 3 x 2 3 inch Video Gain 1 K eypad Codes and RS 232 Protocol 1 1 1 L LA The Keypad that is shipped
3. with the unit Keypad Button a Ea ASCII HEX Break Code ASCII HEX operates at 1200 Baud rate with one start bit 0 and one or more stop bits 1 no parity To tie the unit to a PC use a DB9 F F cross over cable Null Modem 2 lt gt 3 4 lt gt 6 7 lt gt 8 5 5 Each key when pressed transmits a unique one byte make code and when released a unique one byte break code Therefore to simulate a keypad keystroke from a PC you must transmit a make code followed by a break code The table shown here lists the keys that are decoded by the VSM 404 Status Read Commands from PC 30h 0 gt gets a response of 31h 1 to Indicate version 1 firmware 31h 1 through 34h 4 gt used to read the status of output channels 1 through 4 respectively The unit responds with 30h thru 34h to indicate no selection or CH1 thru CH4 the input channel being displayed Optional PC Control Software The Matrix Monitor software available upon request allows point and click control and monitoring of the VSM 404 from a PC with Windows OS It can also operate in conjunction with a keypad See website for details AxZO0O0ULrE Page 2 of 2 09 11 01
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