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Model AC505A-2A 

1. Introduction 

 

1.1 General 

Thank you for purchasing the Black Box AC505A-2A, a 2x1 Compact 
VGA Switch with Audio & Serial Control.  

This unit provides a video along with audio output that can be switched 
between two video and audio sources.  The unit also has a loop-out for 
input #1 for connection to a local LCD. 

The AC505A-2A unit provides all the A/V and control connections on 
the rear panel; the front panel has a push-button switch with 
corresponding LED indicator for the selection of video source. The 
front panel also features mode selection buttons to allow the unit to 
operate automatically (based on video detection). This unit can be 
controlled either manually using the front panel switch, automatically 
based on video detection, or remotely through an RS232 serial port. 

The unit can be configured to operate in two different modes, which 
are Auto and Manual modes.  There is a priority selection that can be 
used to set for none, input #1 or input #2.  Switched output can be 
blanked and un-blanked either from the front panel button or from the 
PC command sending through the serial port. 

The unit also has EEPROM (internal non-volatile flash memory) to 
store the last operating mode when power is off. 

1.2 Features 

9

 

Allows one video with stereo audio to be switched between 
two video and audio sources 

9

 

Loop-out for input #1 audio and video 

9

 

Can be manually controlled by front-panel push-buttons or 
remotely by RS232 communication port 

9

 

Provides Auto mode to automatically select input source 

9

 

Auto mode priority can be set for input #1, input #2 or no-
priority 

9

 

Switched output can be blanked and un-blanked 

9

 

Stores the last selection and mode in EEPROM 

9

 

Ships with universal (100~240 VAC) power supply 

9

 

Compact, Rugged, Reliable, and Economical 

Summary of Contents for AC505A-2A

Page 1: ...tch w Audio AC505A 2A 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 or...

Page 2: ......

Page 3: ...t such interference when the equipment is operated in a commercial environment Operation of this equipment in a residential area is likely to cause interference in which case the user at their own exp...

Page 4: ...aire por los orificios de ventilaci n 10 El equipo el ctrico deber ser situado fuera del alcance de fuentes de calor como radiadores registros de calor estufas u otros aparatos incluyendo amplificado...

Page 5: ...INPUTS OUTPUTS 5 2 3 CONNECTING THE AC505A 2A 5 2 4 CONNECTION DIAGRAM 6 3 CONFIGURATION OPERATION 6 3 1 SWITCHED OUTPUT 6 3 2 MODES OF OPERATION 7 3 3 PRIORITY SELECTION IN AUTO MODE 7 3 4 RS 232 CO...

Page 6: ...rial port The unit can be configured to operate in two different modes which are Auto and Manual modes There is a priority selection that can be used to set for none input 1 or input 2 Switched output...

Page 7: ...tput which is a loop out for PC 1 Input Local 2 3 Connecting the AC505A 2A Connect your video and audio sources such as computer or notebook PC to PC 1 Input and PC 2 Input If the loop out for input 1...

Page 8: ...PC 2 A solid on LED is used to indicate which input is selected Holding down the switched output SELECT button for 3 seconds will blank the current selected input source and mute the audio output The...

Page 9: ...witched output SELECT button 3 3 Priority Selection in Auto Mode The priority button is used to select the priority as none input 1 or input 2 This priority selection only applies to the Auto mode If...

Page 10: ...port So to program the Switch you may need a USB to RS 232 Serial converter Please contact your Black Box sales representative if you need to buy one The AC505A 2A will output a menu to a serial port...

Page 11: ...to the video audio input source that is active Active means that video signal has sync signal it does not mean there is a non static screen ASCII M or Hex 4D Enters Manual mode The device will respond...

Page 12: ...42 Blanks the output The device will respond with Blanked When the output is blanked only the color intensities of the output are reduced to zero the unit still operates in normal fashion and sync si...

Page 13: ...nce 4 2 Calling Black Box If you determine that your unit is malfunctioning do not attempt to repair the unit Contact Black Box Tech Support at 724 746 5500 Before you do make a record of the history...

Page 14: ...1080p Audio Inputs PC or Consumer audio standard line level Video Level 0 to 0 7V p p on RGB 0 to 5 V for H and V Sync Bandwidth 200 MHz Temperature Operating 32 to 122 F 0 to 50 C Storage 40 to 185...

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Page 16: ...Copyright 2007 Black Box Corporation All rights reserved 1000 Park Drive Lawrence PA 15055 1018 724 746 5500 Fax 724 746 0746...

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