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2x1 Compact VGA Switch

9

 

Auto  

 

If selected, causes the switch to select the input with active 
video automatically. The presence of video is determined by 
examining the V.Sync signal of the input connectors.  

In Auto mode you don’t need to have the pushbutton cord 
plugged in. However, if a push button cord is plugged-in, the 
button itself cannot be used for switching, but the LED either 
stays on or blinks to indicate which input is selected. 
Additionally, it is possible to blank the output in auto mode 
using the push-button switch (see below) 

Auto Mode with Priority:

 There are two modes of operation 

for the Auto-detection of video. In the default mode (with dip 
switches as shown above – TTL switch in off position) no 
priority is assigned to either input. Once the switch finds a 
video at one of the inputs it selects it and stops scanning until 
the currently selected input's video is absent, then the switch 
will start scanning again.  

If the TTL dip switch is down (on) at the same time as Auto, 
then priority is given to input #1. This means that at any time 
video is present at input #1 the VS-2 will automatically select 
it, regardless of what is happening at input #2. For example if 
the Switch is showing an image from input #2 and you plug 
in a video signal to input #1, the switch will select #1 right 
away. 

Auto Mode with Blanking

:. If the blanking dip switch is on 

(down) at the same time as Auto then double clicking the 
pushbutton will cause the output video to blank out. Click the 
button again to restore the output. 

Summary of Contents for AC505A

Page 1: ...INFORMATION Order toll free in the U S 24 hours 7 A M Monday to midnight Friday 877 877 BBOX FREE technical support 24 hours a day 7 days a week Call 724 746 5500 or fax 724 746 0746 Mail order Black...

Page 2: ......

Page 3: ...ance with the specifications in Subpart B of Part 15 of FCC rules which are intended to provide reasonable protection against such interference when the equipment is operated in a commercial environme...

Page 4: ...n carritos o pedestales que sean recomendados por el fabricante 7 El aparato el ctrico debe ser montado a la pared o al techo s lo como sea recomendado por el fabricante 8 Servicio El usuario no debe...

Page 5: ...do nicamente de acuerdo a las recomendaciones del fabricante 15 En caso de existir una antena externa deber ser localizada lejos de las lineas de energia 16 El cable de corriente deber ser desconectad...

Page 6: ...6 2 Installation page 6 3 Configuration and Operation page 8 3 1 Dip Switch Settings page 8 3 2 More on Serial RS 232 Operation page 11 3 3 Serial Control Codes page 12 4 Troubleshooting page 13 Cont...

Page 7: ...deo input signals and buffers the output in order to protect signal integrity The Model AC505A can drive video cables to 150 feet or more depending on cable quality an resolution setting The input and...

Page 8: ...e male to male Black Box can provide cables from 3 feet to 100 feet or more please contact us for ordering information Connect the display device such as a monitor or a video projector to the output o...

Page 9: ...such as Windows XP etc The AC505A does not switch the PNP signal lines to the PC This means that in some instances you may have to select a new monitor or video settings on your PC Also notice that m...

Page 10: ...off levers up This is the default mode setting for the switch In this mode the unit is controlled from the push button switch cord The switch at the end of the cable is momentary and it has a built i...

Page 11: ...dip switches as shown above TTL switch in off position no priority is assigned to either input Once the switch finds a video at one of the inputs it selects it and stops scanning until the currently s...

Page 12: ...to ground will select input 2 The center ring of the connector can be used to light an external LED for indication of the selected channel if desired Simply tie the ring to the anode of the Led with t...

Page 13: ...p the AC505A will output a menu on the serial port To view the menu you need an ASCII serial terminal or terminal emulator software An example is Windows Hyper terminal generally found in Accessories...

Page 14: ...static screen If both inputs are active then the AC505A stays on the currently selected video until the video signal ceases then it will switch to the other channel if there is good video present ther...

Page 15: ...xcess of 100 feet the losses in the cable could be a contributing factor in which case first reduce the refresh rate to 60 HZ and if that is not enough you may have to reduce the resolution of the inc...

Page 16: ...the history of the problem We will be able to provide more efficient and accurate assistance if you have a complete description Shipping and Packaging If you need to transport or ship your extender P...

Page 17: ...CC Part 15 Subpart B Class A IC Class Max Altitude 10 000 ft 3048 m Temperature Operating 32 to 122 F 0 to 50 C Storage 40 to 185 F 40 to 85 C Humidity Up to 95 non condensing Enclosure Steel MTBF 90...

Page 18: ...AC505A 16...

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Page 20: ...Copyright 2006 Black Box Corporation All rights reserved 1000 Park Drive Lawrence PA 15055 1018 724 746 5500 Fax 724 746 0746...

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