English
Espanol
Francais
Deutsch
Products
- New Products
- Products A-Z
- Audio
- Annunciation & Paging
- Attenuators
- Crossover Filters & Filters
- Distribution
- EMC
- Headphone Amplifiers
- Line Amplifiers / Interface
- Meters
- Microphone Products
- Mixing
- Networked Audio - Dante
- Phono
- Power Amplifiers
- Processing
- Program Monitoring
- Signal Generators
- Speakers and Active Speakers
- Switching & Control
- Transformer Products
- VCAs & Related Products
- Accessories
- Din Rail Mounting Accessories
- EZ Mounting Accessories
- Flat-Pak Mounting Accessories
- General Mounting Accessories
- General Wiring Accessories
- Half-Rack Mounting Accessories
- HD Series Mounting Accessories
- Pole Mounting Accessories
- Rack-Up Mounting Accessories
- Stick-On Mounting Accessories
- SYSFLEX
- TX Mounting Accessories
- Alerting
- Digital
- Engineered Systems
- Power Supplies & Accessories
- Remote Panels & Controls
- Switching & Control
- Instruments
- Twisted Pair
- Video
Applications
Reference
Tech Tips
Company
Language
Login
TX-AVX Automatic Video Switch - 2x1 - BNC
- Automatic Switchover to a Secondary Video Source
- Loss of Video Detection
- Dry-Contact Relay Output
- Detection of NTSC or PAL Signals
- Operation from AC or DC Power
- Overview
- Specifications
- Related Products
- Accessories
- Downloads
- How to Buy
- Product Series
- Dimensions
The TX-AVX is the ideal choice in installations where automatic switchover to an alternate video source is needed when the primary signal is lost. The unique power supply input allows the TX-AVX to be powered from a wide variety of existing ac or dc power sources.
The TX-AVX has two video inputs and a single output. The detection circuit bridges the INPUT line. When a valid NTSC or PAL video signal is detected, the INPUT jack is connected to the OUTPUT jack. The output is designed to connect to a 75 Ω terminated load. In the absence of video input at the INPUT jack, the AUX INPUT jack is connected to the OUTPUT jack. The switching is accomplished by means of a high-quality RF relay. If power to the TX-AVX is interrupted, then the AUX INPUT jack is connected to the OUTPUT jack. The INPUT jack is 75 Ω terminated. The AUX INPUT is terminated when it is connected to the OUTPUT and is unterminated when it is not in use.
Video detection is based on valid sync signals. The TX-AVX responds to valid NTSC or PAL sync while ignoring 50 Hz and 60 Hz hum and related induction artifacts. The TX-AVX is able to detect signals as weak as 0.5 V p-p. When a valid signal is detected, the relay connects the INPUT to the OUTPUT, and provides a ground connection to the SLAVE terminal, permitting the module to be connected as a video-present detector. Use in conjunction with RDL® BZR Alert Modules for convenient and reliable notification of status change.
Tech Tips
Applications
PRIORITY SWITCHING FROM A VIDEO SOURCE
Direct Dealer Program
Becoming an RDL direct dealer is quick and easy. To become a direct dealer, your company must meet the following requirements:
- Must be an A/V contractor, sound contractor or system integrator
- Must possess a current resale certificate for your state
Click here to submit a new direct dealer account inquiry.
Buy Online
TX SERIES
TX Series modules are application-specific modules for the A/V and related industries. Many TX modules offer galvanic transformer isolation. Module functions include signal detection, switching, amplification, format conversion, line driving, mixing, distribution, twisted-pair sending/receiving and more. Each TX is a compact module engineered to provide higher performance and longer life than other industry products. TX modules are solid encapsulated hybrid circuits in durable industrial black plastic/steel or aluminum enclosures with clear bold white lettering for the jacks, terminal block connections, trimming controls and switches.
TX modules are constructed in two widths and heights. All TXs are the same length, have the same mounting hole configuration, and are compatible with all TX series mounting options. A complete range of mounting options is available for systems utilizing multiple TX modules. A single TX module may be mounted right where its function is needed, and are widely used in system designs with OEM or other RDL products. TX SERIES modules are designed and manufactured in the U.S.A.
