Black Box 1121A, AC1120A, 1123A, 1122A user manual Comparison with Analog VU meter on 16x16 Matrix

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

The associated input LED lights up, the matrix will temporarily route the audio input from the selected channel to audio output #1 and monitor its level on the front panel. Any other outputs tied to this selected input channel stay connected during this adjustment procedure.

The installer can connect an external VU meter to output #1 or rely on the front panel (bottom row of lights) that act as a digital VU meter.

Notes about VU Meter Function

The front panel VU meter function is available on both the 16x16 and the 8x8 units with audio. However, the matrices do not change the volume level. The user can do that at the source and use the matrix to monitor the level. The bar indicator is for the left input (tip on mini-phono input) channel only. So when adjusting a stereo level make sure the left and right audio inputs are balanced

The bottom row of 8 or 16 LEDs indicate the sound level. Position 10 (or 5 for 8x8 matrix) is used to correspond to 0 VU (desired peak level).

Figure 10 –Comparison with Analog VU meter on 16x16 Matrix

Figure 11 – Graph of VU dB level versus LED bar length

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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 InputsMatrix with RS-232 Control no IP Power input connectionControl Inputs Auxiliary RS-232 Control Port Primary RS-232 Control PortUnits with IP control Front-Panel Buttons and IndicatorsOperation Viewing ties by Video and Audio Viewing Audio and Video Routings or TiesViewing ties by Video only Making a tie by Input Video and Audio to follow each other Making Audio and Video Routings or TiesViewing ties by Audio only Making a tie by Output Video and Audio to follow each other Video only or Audio onlySaving Presets routing patterns Recalling Presets routing patternsDisconnecting all AV outputs blank preset To reset system to factory defaultsComparison with Analog VU meter on 16x16 Matrix Front panel is in usecr Control Commands RS-232 and IPRouting Functions Naming FunctionsTo make a video tie To make an audio tieRestoring Factory Defaults Preset Pattern Saving and Routing FunctionsRebooting the System To recall a saved preset Video routing patternTo Read Temperature inside the Matrix To Read Audio Volume Units VU of output #1To Read the Firmware Version To Read Supply VoltagesTo 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 Maintenance Maintenance and TroubleshootingTroubleshooting Calling Black BoxShipping 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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