Black Box 1121A, AC1120A, 1123A, 1122A user manual Installation, Input Audio & Video Connections

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8x8 and 16x16 VGA / HDTV Matrix Switch with Audio, RS232 & IP Control

2.0 Installation

The matrix is housed in a 2RU 19” wide rack mountable enclosure. All of I/O, control, and the power connections are on the rear of the unit.

Figure 1 – Rear panel of AC1123A showing all the connections

2.1 Input Audio & Video Connections

Figure 2 - Audio and video inputs on AC1123A

The video connectors are HD15 female. These are compatible with PC’s VGA video signal (RGBHV). The Matrix is also compatible with analog SD or HDTV signals (YPbPr) with resolutions from 480i to 1080p. To connect these types of signals to the Matrix, HD15 to 3-RCA cables may be required.

Technical Note about the Video Inputs

The HD15 inputs of the matrix handle only the color and sync signals. EDID (extended display identification data) is absent. EDID is normally used by the source PC to read pertinent information from the connected display. This information includes a list of the resolutions that are supported by the LCD. If EDID is not implemented, the source PC is unaware of the specific LCD connected to it. Generally this is not a problem since in the absence of EDID, most PC’s allow the user to select from a set of default resolutions for output. Some PC’s may not output any video signal, or only allow limited resolution settings with the absence of EDID . One way to resolve this is to change the display settings of the PC to show all modes and not detect Plug and Play LCD. The procedure for doing this varies depending on the operating system and the video card in the PC. It is generally found under: Control Panel > Display Settings > Advanced > Monitor tab. Alternatively a pass-through EDID emulator can be used. This a piece of hardware that is sold separately.

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Contents Models AC1120A 1121A 1122A 1123A Page Trademarks Used in this Manual Table of Contents Maintenance and Troubleshooting General FeaturesInput Audio & Video Connections InstallationOutput Audio & Video Connections Technical Note about the Audio InputsControl Inputs Power input connectionMatrix with RS-232 Control no IP Auxiliary RS-232 Control Port Primary RS-232 Control PortOperation Front-Panel Buttons and IndicatorsUnits with IP control Viewing ties by Video and Audio Viewing Audio and Video Routings or TiesViewing ties by Video only Viewing ties by Audio only Making Audio and Video Routings or TiesMaking a tie by Input Video and Audio to follow each other Making a tie by Output Video and Audio to follow each other Video only or Audio onlyTo reset system to factory defaults Recalling Presets routing patternsSaving Presets routing patterns Disconnecting all AV outputs blank presetComparison with Analog VU meter on 16x16 Matrix Front panel is in usecr Control Commands RS-232 and IPTo make an audio tie Naming FunctionsRouting Functions To make a video tieTo recall a saved preset Video routing pattern Preset Pattern Saving and Routing FunctionsRestoring Factory Defaults Rebooting the SystemTo Read Supply Voltages To Read Audio Volume Units VU of output #1To Read Temperature inside the Matrix To Read the Firmware VersionTo set a schedule Scheduling Auto recall of Preset PatternsResponse if 4 was entered schedule on IP Control Basics If command completed successfully Response BB1123-A IP Configuration through port Model AC1120A, AC1121A, AC1122A, AC1123A Page Calling Black Box Maintenance and TroubleshootingMaintenance TroubleshootingShipping and Packaging SpecificationsAppendix 1 Front Panel Quick Reference Guide Function ProcedureCommand Function Appendix 2 Command SummaryModel AC1120A, AC1121A, AC1122A, AC1123A Page Copyright 2008. Black Box Corporation. All rights reserved

1121A, 1122A, 16x16 and 8x8 VGA/HDTV Video Matrix Switch with Front Panel, RS232, and Optional Audio & IP Control, AC1120A, 1123A specifications

The Black Box 1123A, AC1120A, 16x16 and 8x8 VGA/HDTV video matrix switches represent a versatile and powerful solution for any audio-visual application. With their capability to switch signals from multiple sources to multiple displays, these matrix switches are ideal for conference rooms, control rooms, and education environments. Each model features a user-friendly front panel for immediate access and control, allowing operators to easily manage video routing without needing advanced technical skills.

The 1123A and AC1120A models support 16x16 and 8x8 configurations, respectively, providing flexible connectivity options for various setups. These matrix switches can accommodate a range of video standards, including VGA and HDTV, ensuring compatibility with a wide selection of devices and displays. This flexibility is essential in environments where different types of video sources and outputs are commonly used.

One of the standout features of the Black Box 1123A and AC1120A is the RS232 control option, which allows for remote management and automation through a serial connection. This capability is particularly beneficial in complex installation setups, enabling users to integrate the matrix switch into existing control systems easily.

Moreover, these models come equipped with optional audio control functionalities, allowing for the simultaneous management of audio and video signals. This integration is critical for environments where synchronized audio-visual output is necessary, such as in presentations or live event settings.

The matrix switches are designed with high-quality components that ensure minimal signal degradation and excellent video quality, even at extended cable lengths. Additionally, they support a range of resolutions, making them versatile enough to cater to both standard and high-definition video signals.

The models 1122A and 1121A complement the 1123A and AC1120A with additional features and enhanced capabilities, ensuring a comprehensive product range to meet diverse client needs. With a reputation for reliability and performance, Black Box continues to lead the market in video matrix switching technology.

In summary, the Black Box 1123A, AC1120A, and their counterparts offer an advanced solution for modern audio-visual installations. Their robust features, compatibility, and user-friendly control options make them an exceptional choice for any organization seeking to enhance their video management capabilities.
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